The northern Mexican Ralámuli people consider plants to be their kin. First‐ and secondhand ethnographies bring forth fundamental issues that convey the possibility of communicating with plants. For example, the notion of an interconnected world has to do with roots, with threads, and with thought or nátali (consciousness, remembrance, ancestral memory), all of which embrace the life path. This path also refers to that used by healers, who in their dreams and through their chants communicate with sacred plants. This (...) article also deepens the understanding of textiles—originally made from vegetal fibers and considering that in Ralámuli origin stories the Earth was woven—and their iconography, which also appears in healing contexts, to see if there is a relationship between specific motifs and the information that, via dreams and chants, the plants are delivering. (shrink)

In 1981, after 20 years of teaching and writing philosophy, Derrida claimed that ‘less than ever’ did he ‘know what philosophy is’. Indeed, his ‘knowledge of what ... constitutes the essence of philosophy’ remained ‘at zero degree’. 1 These were not flippant remarks. Rather, Derrida’s avowed uncertainty is part of a more general metaphilosophical view; namely, that ‘Philosophy has a way of being at home with itself that consists in not being at home with itself’. 2 In this article (...) I will critically reconstruct and develop this view, paying particular attention to the ‘institutional’ dimension of contemporary philosophy. (shrink)

This article explores strategy-making modes within organisations. The implications of certain strategy-making modes for the responsible leader as an architect or change agent are highlighted. The study on which this article is based, showed that the use of emergent strategy-making is as prevalent as the use of deliberate strategy-making. This article reports on the thinking of organisational leaders, managers and non-managers regarding strategy-making processes and records empirical findings from mixed method research. It was found that emergent strategy-making is associated with (...) quick response and adaptation to environmental changes, more autonomous decisions and actions, less control and higher intangibility whereas the deliberate strategy is known for its clear objectives, articulated vision and direction and specific ends and means. It is recommended that organisational leaders should take cognisance of the growing use of emergent strategy-making as well as its characteristics in facilitating effective governance. A knowledge and understanding of these characteristics of strategy-making modes should be sought to serve as guideline for organisational leaders who want to be responsive and responsible in all their actions areas for future research. (shrink)

The interactive correspondence of art, science, and preservation supports the composition of a four-volume anonymous herbarium originally belonging first to the Venetian library of Ambassador Hurtado de Mendoza, and later endowed to the Royal Library of the Monastery-Palace of El Escorial. This planted knowledge consist­ed of artistic and scientific practices to preserve not only the plants dried and glued to recycled paper, but the association of those plants, with names, stories, and contexts in ways that attest to the development (...) of natural history and philosophy in sixteenth-century Italy and Spain. This article describes and analyzes the composition of the Hurtado herbarium, its provenance, and its place in the context of early modern European naturalism and botany. Finally, it considers problems of reading this collection, and possible solutions to better understand the herbarium in El Escorial as another piece of this network of dissemination of ethnobotanical knowledge in early modern Europe. (shrink)

This paper discusses what it means and what it takes to integrate data in order to acquire new knowledge about biological entities and processes. Maureen O’Malley and Orkun Soyer have pointed to the scientific work involved in data integration as important and distinct from the work required by other forms of integration, such as methodological and explanatory integration, which have been more successful in captivating the attention of philosophers of science. Here I explore what data integration involves in more (...) detail and with a focus on the role of data-sharing tools, like online databases, in facilitating this process; and I point to the philosophical implications of focusing on data as a unit of analysis. I then analyse three cases of data integration in the field of plant science, each of which highlights a different mode of integration: inter-level integration, which involves data documenting different features of the same species, aims to acquire an interdisciplinary understanding of organisms as complex wholes and is exemplified by research on Arabidopsis thaliana; cross-species integration, which involves data acquired on different species, aims to understand plant biology in all its different manifestations and is exemplified by research on Miscanthus giganteus; and translational integration, which involves data acquired from sources within as well as outside academia, aims at the provision of interventions to improve human health and is exemplified by research on Phytophtora ramorum. Recognising the differences between these efforts sheds light on the dynamics and diverse outcomes of data dissemination and integrative research; and the relations between the social and institutional roles of science, the development of data-sharing infrastructures and the production of scientific knowledge. (shrink)

In this paper I suggest a number of reasons for concluding that Australia's existing Plant Intellectual Property system is incompatible with the provision of adequate protection of ownership of indigenous peoples' traditional plant knowledge.

This paper focuses on the relationship between the compilation of a herbarium in early modern history and the search for a classification of nature. By looking at the histories of different herbaria and their compilers, this paper shows how the nature of ordering botanical materials changes along with the search for a system of ordering plant knowledge.

The margins of philosophy are populated by non-human, non-animal living beings, including plants. While contemporary philosophers tend to refrain from raising ontological and ethical concerns with vegetal life, Michael Marder puts this life at the forefront of the current deconstruction of metaphysics. He identifies the existential features of plant behavior and the vegetal heritage of human thought so as to affirm the potential of vegetation to resist the logic of totalization and to exceed the narrow confines of instrumentality. Reconstructing (...) the life of plants "after metaphysics," Marder focuses on their unique temporality, freedom, and material knowledge or wisdom. In his formulation, "plant-thinking" is the non-cognitive, non-ideational, and non-imagistic mode of thinking proper to plants, as much as the process of bringing human thought itself back to its roots and rendering it plantlike. (shrink)

This paper elucidates the philosophical origins of the conception of plants as machines and analyses the contemporary technical and ethical consequences of that thinking. First, we explain the historical relationship between the explicit animal machine thesis of Descartes and the implicit plant machine thesis of today. Our hypothesis is that, although it is rarely discussed, the plant machine thesis remains influential. We define the philosophical criteria for both a moderate and radical interpretation of the thesis. Then, assessing the (...) compatibility of current botanical knowledge with both interpretations, we find that neither withstands scrutiny. We trace how biological and agricultural sciences have historically relied upon thinking of plants as machines and how they continue to do so today through rhetoric centred on breeding, biotechnology, and production. We discuss some of the most important legal and ethical consequences of obscuring the vitality of plants. Finally, we explore less reductive and destructive ways of thinking about, and using, plants. (shrink)

The Plant Ontology (PO; http://www.plantontology.org/) is a publicly-available, collaborative effort to develop and maintain a controlled, structured vocabulary (“ontology”) of terms to describe plant anatomy, morphology and the stages of plant development. The goals of the PO are to link (annotate) gene expression and phenotype data to plant structures and stages of plant development, using the data model adopted by the Gene Ontology. From its original design covering only rice, maize and Arabidopsis, the scope of (...) the PO has been expanded to include all green plants. The PO was the first multi-species anatomy ontology developed for the annotation of genes and phenotypes. Also, to our knowledge, it was one of the first biological ontologies that provides translations (via synonyms) in non-English languages such as Japanese and Spanish. There are about 2.2 million annotations linking PO terms to over 110,000 unique data objects representing genes or gene models, proteins, RNAs, germplasm and Quantitative Traits Loci (QTLs) from 22 plant species. In this paper, we focus on the plant anatomical entity branch of the PO, describing the organizing principles, resources available to users, and examples of how the PO is integrated into other plant genomics databases and web portals. We also provide two examples of comparative analyses, demonstrating how the ontology structure and PO-annotated data can be used to discover the patterns of expression of the LEAFY (LFY) and terpene synthase (TPS) gene homologs. (shrink)

It has recently been asserted that legislative moves to consider plants as ethical subjects are philosophically foolish because plants lack autonomy. While by no means the sole basis or driving criterion for moral behavior, it is possible to directly challenge skeptical attitudes by constructing a human-plant ethics centered on fundamental notions of autonomy. Autonomous beings are agents who rule themselves, principally for their own purposes. A considerable body of evidence in the plant sciences is increasingly recognizing the capacity (...) of plants to assess, perceive, and act on their environment. The primary purpose of their doing so is to generate the conditions for their own flourishing. With these plant purposes in mind, it is evidentially inappropriate to treat plants purely as instruments. In this age of environmental crisis, knowledge of plant intelligence and autonomy opens up a new debate on respecting and promoting the well-being of the plants that make life on Earth possible. (shrink)

This paper investigates the emergence, in the second part of the 17th century, of a new body of experimental knowledge dealing with the chemical transformations of water taking place in plants. We call this body of experimental knowledge a “chemical history of vegetation.” We show that this chemical natural history originated, in terms of recipes and methods of investigation, in the works of Francis Bacon and that it was constructed in accordance with Bacon's precepts for putting together natural (...) and experimental histories. Our paper covers a wide array of experimental investigations, carried out by people with different backgrounds, theoretical assumptions, and metaphysical allegiances (Thomas Browne, Robert Sharrock, Robert Boyle, Nehemiah Grew, John Beale, and John Evelyn). We claim that, despite their differences, these naturalists had a lot in common. First, they treated plants as laboratories of chemical investigation. Second, they used the experiments with plants to develop tools, hypotheses, and operational concepts, which travelled from one naturalist to the other, even when their respective explanatory vocabularies were widely different. Third, we show that some of them also manifested an interest in defining and clarifying the limits and structure of this new body of experimental knowledge, displaying, thus, a certain disciplinary unity. (shrink)

This article presents a holistic framework for understanding the scienceof plant breeding, as an alternative to the common objectivist andconstructivist approaches in studies of science. It applies thisapproach to understanding disagreements about how to deal with yieldstability. Two contrasting definitions of yield stability are described,and concomitant differences in the understanding and roles ofsustainability and of selection, test, and target environments areexplored. Critical questions about plant breeding theory and practiceare posed, and answers from the viewpoint of the two contrastingdefinitions (...) of yield stability are analyzed, based on key publicationsin the field. Differences in answers to these questions appear to resultboth from the contingencies of plant breeders' experiences withparticular crop varieties and growing environments, and from differencesin social and institutional settings – plant breeding science isboth objective truth and social construction. The goal of using aholistic framework is to encourage discussion among plant breeders,farmers, social scientists, and others, of the bases for disagreementswithin plant breeding, in order to facilitate plant breeding'scontribution to a more environmentally, economically, and sociallysustainable agriculture. (shrink)

Recent work with infants suggests that plant foraging throughout evolutionary history has shaped the design of the human mind. Infants in Germany and the US avoid touching plants and engage in more social looking toward adults before touching them. This combination of behavioral avoidance and social looking strategies enables safe and rapid social learning about plant properties within the first two years of life. Here, we explore how growing up in a context that requires frequent interaction with plants (...) shapes children’s responses with the participation of communities in rural Fiji. We conducted two interviews with adults and a behavioral study with children. The adult interviews map the plant learning landscape in these communities and provide context for the child study. The child study used a time-to-touch paradigm to examine whether 6- to 48-month-olds in participating communities exhibit avoidance behaviors and social looking patterns that are similar to, or different from, those of German and American infants. Our adult interview results confirmed that knowledge about daily and medicinal uses of plants is widely known throughout the communities, and children are given many opportunities to informally learn about plants. The results of the child behavioral study suggest that young Fijian children, like German and American infants, are reluctant to reach for novel artificial plants and are fastest to interact with familiar household items and shells. In contrast to German and American infants, Fijian children also quickly reached for familiar real plants and did not engage in differential social looking before touching them. These results suggest that cultural contexts flexibly shape the development of plant-relevant cognitive design. (shrink)

Traditionally, plant viruses are viewed as harmful, undesirable pathogens. However, their genomes can provide several useful ‘designer functions’ or ‘sequence modules’ with which to tailor future gene vectors for plant or general biotechnology.The majority (77 %) of known plant viruses have single‐stranded RNA of the messenger (protein coding) sense as their genetic material. Over the past 4 years, improved in vitro transcription systems and the construction of partial of fulllength DNA copies of several plant RNA viruses (...) have enhanced our ability to manipulate and study their genomes, particularly in the context of their pathogenic interactions with host plants.Recently, two forms of genetically engineered protection against plant virus infections have been reported. In both, a virus‐related ‘interfering’ molecule was stably introduced into plants via the DNA‐transfer mechanism of Agro‐bacterium tumefaciens. To date, the choice of ‘interfering’ molecule has been guided by empirical field‐observations and each is effective against only a narrow range of closely‐related viruses. As yet, we do not fully understand the molecular mechanism(s) responsible for the observed protection.The ability to manipulate the plant–pathogen relationship is a powerful tool to increase our knowledge and improve future strategies for uncoventional cropprotection by genetic engineering techniques. (shrink)

Translations, whether in the form of text, illustration, or interpretive analysis, served knowledge-making in multiple ways. It offered a refuge, severed contexts, and concealed the various workers that created it. Over the course of the seventeenth century, European naturalists in Istanbul, such as Luigi Ferdinando Marsigli (1658–1730), procured illustrations of Ottoman nature as fundamental resources to identify, collect, and compare indigenous plants and newly bred varieties. Despite maintaining an actual mediation for cross-cultural interactions, these sources of virtual communication remain (...) largely forgotten in modern scholarship. This article argues that this curious yet invisible corpus was not a nonagentive medium in an alienated leisure of a gentleman-scholar; instead, these illustrations were designed to call upon the viewer’s constant attention in self-motivated scientific labor. Such handy tools responded and contributed to early modern scholars’ modes of working, and in exchange they determined these sources’ own function, position, and visibility – either as a by-product or as a derivative. It is therefore only when integrated into the labor history of science that the degrees of invisibility pertaining to both Ottoman nature studies and self-directed labor can come into a granular view. (shrink)

What can we learn from plants? Which forms of intelligence and knowledge can we discover by dedicating ourselves to understanding the life of a plant, its characteristics, interactions with the environment and cultural narratives? This article aims to bridge recent studies in plant intelligence, Semiotics and creative processes. Departing form the idea that the world arrived at a critical situation and the planet Earth cannot continue being exploited as an infinite source, we argue that it is necessary (...) to promote transformations in our culture, abandoning the anthropocentric framework and looking for new perspectives. In this sense, connecting communication, art, science and education, the purpose of Plant Portraits is to create experiences and propitiate encounters that catalyse the awakening of an expanded and integrated consciousness. (shrink)

ArgumentState patronage and the modernizing role of the government have been considered crucial for the development of science in Russia during both Imperial and Soviet periods. This paper argues, on the contrary, that the start of Russian agricultural science had predominantly local and non-governmental sources of support. Amateur experiments by nobles aspiring to become “cultured” landlords, university professors applying their scientific knowledge to their own estates, and the efforts by local community administrations, zemstvo, to compete for grain markets all (...) contributed, by 1900, to the establishment of various stations for agricultural research. The Imperial government became involved in this process rather belatedly, with an effort to further stimulate and coordinate the institutional network of agricultural science. By 1917, this network included more than 300 breeding and experimental stations. Despite revolutionary violence and the loss of former patrons, most of these stations managed to maintain their functions throughout the Civil War and formed the basis of Soviet agricultural science. (shrink)

Beginning in 1989, the breakup of the Soviet Bloc disrupted trade and cut off Cuba's source of subsidized fuel oil, making many modern agricultural practices impossible, including the wide use of pesticides. Among Cuba's responses was an emphasis on biological control of plant diseases. Research into biological control began in the 1930s, and after the revolution many scientists maintained an unofficial interest. When the 1989 economic crisis occurred, the government placed a high priority on biocontrol, and researchers were in (...) a position to begin immediate implementation. For example, the construction of factories for the mass production of biological agents had been approved in 1988, and are currently in operation. Disease monitoring was undertaken before the current crisis, with more than 90% of Cuban agriculture using it to some extent. Such monitoring has allowed a reduction in pesticide use. Since the 1989 onset of economic crisis the monitor system has not been greatly modified for use with biological control techniques, but an example of a successful transition from chemical treatment to biocontrol in Cuba is in banana plantations.At the various research centers, research is being conducted in the biocontrol of vegetable diseases, tobacco root diseases, nematodes, and pasture weeds. Technical research is being done on mass production of inoculum, the production of application formulations, and storage of biocontrol products. Because wide use of biocontrol agents was urgently desired, the government cooperated at every step of research, including in regulatory matters. Obstacles to successful biocontrol mentioned by Cuban scientists were the lack of taxonomic knowledge and the need for strict quality control.There are few economic studies of biocontrol agents despite the importance of such studies. Cuban scientists are in an excellent position to do such research. Forced by the economic crisis to act, Cuba has made a major change in national agronomic policy that may represent a significant and new direction for “modern” agricultural practices. (shrink)

This paper reports on action research that evaluated local perceptions and knowledge of indigenous tree planting and management in the Romwe catchment, Chivi District, southern Zimbabwe. The species tested were the overexploited Afzelia quanzensis, important for timber and carvings of sculptures and utensils; Sclerocarya birrea, the marula tree used for wood, bark, and fruit; and Brachystegia glaucescens, the dominant miombo tree species, used for firewood, fiber, and fodder. Participants volunteered to plant and manage the test seeds, while a (...) research team monitored their activities and results for 26 months. For Afzelia quanzensis, the germination rate was 81%, and 69% of the seedlings were still alive after one year. In the case of Sclerocarya birrea, the germination rate was 69%, and the one-year survival rate was 50%. For Brachystegia glaucescens, the germination rate was only 30%, and the survival rate was 31%. The main reasons for planting were to provide shade, to serve as a windbreak, and to conserve and gain individual control over dwindling natural resources, particularly Afzelia quanzensis. Women were generally more active and innovative than men. For instance, they searched for their own seeds or seedlings in the bush when there weren’t sufficient plants. Some participants tried out various indigenous methods of pest and disease control, water conservation, and moisture retention. Group feedback sessions and informal interactions provided the opportunity to share experiences. The participants learned that indigenous trees can be purposefully planted and were not simply a gift from God. Despite the droughts and political instability of recent years, a growing number of people became involved in tree planting during 2002–2003. As a result, there is now greater awareness among the local population of dwindling resources and their future potential. (shrink)

Are plants conscious? Most knowledgeable people say they aren't. A small minority say they are. Others say we don't know. Virtually all assume the predicate '– is conscious' is fully determinate; plants are or aren't in its extension. Appealing to Mark Wilson's work on predicates and concepts, I challenge that assumption, proposing that the predicate isn't determinate for plants. I offer the start of an explanation for why this is so. We tacitly rely on many empirical correlations when we correctly (...) characterize creatures as conscious, but we have limited knowledge of those facts, and plants differ significantly from animals, while also being substantively similar to them. We don't yet know what it would be for them to be conscious. (shrink)

It is a cliché to say that the poor countries are becoming poorer and poorer while the rich ones become richer and richer. Previous experience shows that it is an illusion to count on mankind's sense of solidarity to resolve this dilemma. And yet we are dealing with a problem that is real, vast, and urgent. The developed world uses its knowledge and technological opportunities to sustain and increase its wealth, and in the race for scientific and technical advances (...) the “Third World” faces the serious risk of never being able to catch up. Seen in this light, it is understandable that some people have allowed themselves to be seduced by the notion that in order to achieve a better equilibrium in the world all that is required is to return to a “more natural” life in which science and technology no longer play a dominant role. It seems to us, however, that this vision is unrealistic because it does not take account of the fact that human nature pushes us toward competition and that the kind of solidarity that would compensate for, and mitigate, this competitiveness works successfully only on a small scale (e.g., within the family or clan) or in very special circumstances (e.g., wars, natural catastrophes). (shrink)

This paper reports on the long-term effectiveness of a non-formal co-curricular educational program based on a campus ecogarden at a Hong Kong university in developing pro-sustainability awareness, attitudes and behavior among undergraduate students. This service-based, nature-based experiential learning program, termed the Ecogarden Farmer and Biodiversity Surveyor, has been running at the university since 2015. The program is divided into two consecutive phases: a training phase comprising various learning activities and a successive internship phase consisting of the all-round practical tasks involved (...) in managing the garden. A retrospective evaluation of the program using phenomenographic approach and content analysis was adopted to reveal the diversity of students’ learning experience, as the indicators of the success of the program. Of 112 participants from 4 cohorts, 32 completed online questionnaires, and semi-structured interviews were successfully conducted with twelve participants, three from each of the four cohorts. The results indicated that the program’s outcomes could be categorized into five themes. Most outcomes fit into the theme ‘an increase in knowledge and skill level,’ followed by ‘rise in environmental awareness,’‘facilitation of personal growth,’ and ‘enhancement of career development.’ Many structural experiences revealed may suggest the success of the program. The longer the participants had participated in the program, the more in-depth and diversified reflection of the senior participants relating to personal development were mentioned. This study provides critical insights into the validity of retrospective program evaluation for assessing the long-term impact of EfS programs by introducing a cross-sectional study of different cohorts as a serial time-point sampling strategy. (shrink)

This contribution takes the notion of herbal landscape (a mental field associated with plants used to cure or prevent diseases and established within specific cultural and climatic zones) as a starting point. The authors argue that the features by which a person recognises the plant in the natural growing environment is of crucial importance for the classification and the use of plants within the folk tradition. The process of perception of the plant can be divided into analytical categories (...) according to the sign concept of Charles Sanders Peirce. Whereas the plant can be seen as the object, the feature(s) the plant is recognised by is (are) the representamen(s), and the image of the plant within the herbal landscape can be understood as the interpretant. Different methods of perception of the signs within the herbal landscape are demonstrated comparing the herbal knowledge acquired from the herbals with the method of plant recognition learned in the traditional way. The first can be looked at with the terms of Tim Ingold as transportation, using plant features to go across, leaving all other signs present in the landscape unnoticed. The wayfarer, guided by signs learned within the context of surroundings, walks along and perceives the plant as a part of the herbal landscape. Although the examples analysed come from Estonian ethnobotany, the method of analysis can be applied in ethnobotanical research worldwide. (shrink)

There is no doubt that custard apple diseases are among the important reasons that destroy the Custard Apple plant and its agricultural crops. This leads to obvious damage to these plants and they become inedible. Discovering these diseases is a good step to provide the appropriate and correct treatment. Determining the treatment with high accuracy depends on the method used to correctly diagnose the disease, expert systems can greatly help in avoiding damage to these plants. The expert system correctly (...) diagnoses Custard Apple disease to make it easier for farmers to find the right treatment based on the appropriate diagnosis. Objectives: A specialized syllable language system was established for the diagnosis of Custard Apple plant disease. (shrink)

In his book "Organic Chemistry in its Application to Agriculture and Chemistry." Justus Liebig attacked "the plant physiologists" for their support of the humus theory and for their general ignorance of chemistry. Two leading botanists, Matthias Schleiden and Hugo von Mohl, responded by sharply criticizing Liebig for his lack of knowledge of plants and his misrepresentation of the views of plant physiologists. The origin and character of this debate can be understood in part through the temperaments of (...) Liebig and Schleiden, but can be viewed also as a contest for control between the well-established discipline of chemistry and a potential discipline of plant physiology that had as yet acquired no stable institutional foundations. (shrink)

Clustered, regularly interspaced, short palindromic repeat (CRISPR)/CRISPR‐associated protein (CRISPR/Cas) system has revolutionized genetic research in the life sciences. Four classes of CRISPR/Cas‐derived genome editing agents, such as nuclease, base editor, recombinase, and prime editor have been introduced for engineering the genomes of diverse organisms. The recently introduced prime editing system offers precise editing without many off‐target effects than traditional CRISPR‐based systems. Many researchers have successfully applied this gene‐editing toolbox in diverse systems for various genome‐editing applications. This review presents the mechanism (...) of prime editing and summarizes the details of the prime editing system applied in plants and mammalian cells for precise genome editing. We also discuss the advantages, limitations, and potential future applications of prime editing in these systems. This review enables the researcher to gain knowledge on prime editing tools and their potential applications in plants and mammalian cells. (shrink)

Are people are product literate enough to make informed decisions about plant-based and animal-based milk products? In 8 studies, we provide evidence that consumers do not make mistakes indicative of pervasive lack of milk product literacy. People were accurate at identifying plant-based and animal-based milk and cheese products as being plant or animal-based (74% - 84% of the time). In a more difficult task, participants were generally accurate at identifying nutritional differences between plant-based and animal-based milk (...) and cheese products (50%–62% accuracy). We also developed the Milk Literacy Scale, which is a 12-item, validated, knowledge-based instrument that measures knowledge of differences among plant-based and animal-based milk products. The Milk Literacy Scale predicted accuracy in both identification tasks. All results were replicated in a large sample (N = 1054). These results suggest that people are generally product literate about milk products to make informed choices. The studies offer some insights into what kinds of interventions would help make people even more product literate. (shrink)

Despite the enormous diversity in plant form, structure and growth environment across the seed‐bearing plants (angiosperms and gymnosperms), the chloroplast genome has, with few exceptions, remained remarkably conserved. This conservation suggests the existence of universal evolutionary selection pressures associated with photosynthesis—the primary function of chloroplasts. The stark exceptions to this conservation occur in parasitic angiosperms, which have escaped the dominant model by evolving the capacity to obtain some or all of their carbon (and nutrients) from their plant hosts. (...) The consequence of this evolution to parasitism is a relaxation of the evolutionary constraints associated with the need to maintain photosynthetic function, the very function that drove early stages of the ancient symbiotic relationship that produced the contemporary chloroplast. Extreme examples of reductionism among parasitic angiosperms reveals major alterations in chloroplast function with the loss of photosynthetic capacity and, with that, massive alterations in chloroplast genome content. This review highlights emerging patterns in reported gene loss and gene retention in the chloroplast genomes of parasitic plants. Some gene losses appear to occur in the early stages of parasitic evolution, even before the loss of photosynthetic capacity, like the chlororespiratory (ndh) genes. This contrasts with unexpected gene retentions, like that of the rbcL gene responsible for photosynthetic carbon dioxide fixation, and belies current understanding of gene function. The review relates gene retention to current knowledge of protein function and gene processing that has implications to broader aspects of genome conservation in organelles. BioEssays 26:235–247, 2004. Wiley Periodicals, Inc. (shrink)

Historical sciences like paleontology and archaeology have uncovered unimagined, remarkable and mysterious worlds in the deep past. How should we understand the success of these sciences? What is the relationship between knowledge and history? In Scientific Knowledge and the Deep Past: History Matters, Adrian Currie examines recent paleontological work on the great changes that occurred during the Cretaceous period - the emergence of flowering plants, the splitting of the mega-continent Gondwana, and the eventual fall of the dinosaurs - (...) to analyse the knowledge of historical scientists, and to reflect upon the nature of history. He argues that distinctively historical processes are 'peculiar': they have the capacity to generate their own highly specific dynamics and rules. This peculiarity, Currie argues, also explains the historian's interest in narratives and stories: the contingency, complexity and peculiarity of the past demands a narrative treatment. Overall, Currie argues that history matters for knowledge. (shrink)

During postembryonic development, all organs of a plant are ultimately derived from a few pluripotent stem cells found in specialized structures called apical meristems. Here we discuss our current knowledge about the regulation of plant stem cells and their environments with main emphasis on the shoot apical meristem of Arabidopsis thaliana. Recent studies suggest that stem cells are localized in specialized niches where signals from surrounding cells maintain their undifferentiated state. In the shoot meristem, initiation of stem (...) cells during embryogenesis, regulation of stem‐cell homeostasis and termination of stem‐cell maintenance during flower development appear to primarily involve regulation of the stem‐cell niche. BioEssays 25:961–970, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:"Everything is Breath":Critical Plant Studies' Metaphysics of MixtureElisabeth Weber (bio)In her book Braiding Sweetgrass: Indigenous Wisdom, Scientific Knowledge, and the Teachings of Plants, Robin W. Kimmerer contrasts two creation stories that are thoroughly incompatible. One starts with an all-powerful male creator calling the world and its vegetation and animals into existence through words, and forming the first human beings from clay; the other starts with Skywoman tumbling (...) through the air with seeds in her fist from the Tree of Life growing in Skyworld. One ends with the condemnation of woman to give birth in "very severe" pains, with the cursing of the ground ordered to "produce thorns and thistles" as punishment for man who will eat his food only after "painful toil," and the expulsion from the garden; the other ends in gratitude for the collective caring of the animals, with the creation of "a garden for the well-being of all." One includes an original fall from grace whose burden will be passed down from generation to generation; the other acknowledges suffering without a trace of the burden of unearned guilt. One predicts death as a return to the dust from whence mankind was created; the other imagines death as becoming plant and fruit, as becoming gift, a rejoining the spirits of all ancestors, human and others, who surround the living in everything that is. The threat of one is the inexorability of a trajectory "from dust to dust" and the latter's association, with Plato, of something so diffuse that it doesn't merit a concept or idea; the promise of the other is an abiding relationship with all that is, the reciprocity of giving and gratitude, and the gladly assumed responsibility for the "inspirited" land.Kimmerer comments:Same species, same earth, different stories. Like Creation stories everywhere, cosmologies are a source of identity and orientation to the world. They tell us who we are. We are inevitably shaped by them no matter how distant they may be from our consciousness. One story leads to the generous embrace of the living world, the other to banishment. One woman is our ancestral gardener, a cocreator of the good green world that would be the home of her descendants. The other was an exile, just passing through an alien world on a rough road [...].1 [End Page 117]Cosmologies express collective imaginairies that have evolved over hundreds, even thousands of years. The Iroquois story recounted and rendered accessible by Kimmerer is one of countless creation stories that constitute an "important genre in many preliterate traditions" (Zolbrod 5). Kimmerer suggests that even though the Judeo-Christian creation story may have receded into the background of Western collective consciousness, it plays a role in the planet's devastation. What strikes the reader in the story of Skywoman is the centrality of reciprocity, of relation, and, as the woman's name indicates, the significance of the sky. While this might mean, on planet Earth, the atmosphere–the Earth's sky is blue because of the surrounding atmosphere–the implications of the sky's preponderance reach beyond the planetary into the cosmological. The "sky is not what is above. The sky is everywhere: it is the space and the reality of mixture and movement, the definite horizon starting from which everything has to draw itself" (Coccia 218-219) in order to breathe and live.In order to continue to breathe, breathe in the long-term, the long-term, that is, as Barbara Kingsolver put it in one of her poems, "from a tree's / way of thinking" (7), non-human kin's "way of thinking" will need to play a role in humans' self-understanding. Kyle Whyte underlines that it is not enough to respond with urgency to specific ecological crises (fires, flooding, etc.) alone, but, rather, "urgency must be aimed at addressing ecological and relational tipping points together":U.S. settler colonialism, for example, in a short period of time, inflicted displacement, drastic ecological changes, and lost or disrupted relationships with hundreds of species that indigenous peoples depended on through kinship ties for generations. These changes are more extreme than what many nonindigenous persons fear most about moving beyond... (shrink)

The regulatory NodD proteins of Rhizobium bacteria mediate the activation of a gene set responsible for symbiotic nodule formation by plant signal molecules. Here we discuss the signal recognition and gene activation properties of NodD and present a model summarizing the current knowledge on NodD action.

How can we identify and estimate workers’ tacit knowledge? How can we design a personnel mix aimed at improving and speeding up its transfer and development? How is it possible to implement tacit knowledge sustainable projects in remote areas? In order to answer these questions, it is necessary to distinguish between types of tacit knowledge, to establish what they allow for and to consider their sources. It is also essential to find a way of managing the tacit (...) knowledge ‘stock’ and distribution within the workforce. In short, a conceptual framework is needed to manage tacit knowledge. Based on previous works and 2 years of action research, this paper introduces such a framework and describes its partial application to support the pre-operational training and hiring in a large industrial plant in Brazil. Two contributions emerge from the research. First, the concept of ‘levels of similarity’ is introduced as a means to qualify the experience of workers and estimate the associated tacit knowledge. Second, the capability of carrying out three types of judgement properly and speedily is put forward as being a core ability of those who possess what has been called ‘collective tacit knowledge’ (Collins in Organ Stud 28(2):257–262, 2007). In practical terms, the results indicate the opportunity for companies to capitalize on the experience and tacit knowledge of their workers in a systematic way and with due recognition. Ultimately, positive impacts are expected in their absorptive capacity as well as in their management and human resources systems, accident prevention, productivity and the development of sustainable projects in remote areas. (shrink)

The journal continues to publish translations of chapters of the book by the famous phenomenologist Michael Marder “The Philosopher’s Plants (An Intellectual Herbarium)”. Two of the twelve stories were chosen — “Aristotle's Wheat” and “Avicenna's Celery”. The author analyzes the views of the ancient philosopher Aristotle and the medieval Persian philosopher and physician Ibn Sina (Avicenna) on the nature of plants and their place in the diverse world of living beings, showing how the images of wheat and celery become an (...) important part of their philosophical reflections. Marder emphasizes that the ancient scientists were alien to modern systems of biological classification. Each creation occupied its own niche and existed for a specific purpose. However, the contours of these teleologies were not at all what we imagine them to be. For example, for Aristotle, a noble man, a noble animal and a noble plant had more in common than two representatives of the same biological kingdom. In addition, the boundaries between them were quite shaky. A stupid person, unable to follow the strict principles of logic, was literally like a plant. Avicenna discovers in plants the “vegetable soul”, above which he puts the “animal soul”. He finds both of these levels in a person. Awareness of this totality is necessary, according to Avicenna, for genuine self-knowledge and, consequently, for the knowledge of God. The author of the book attempts to answer the question: what if the mixture of similar beings passing into and out of each other, characteristic of the ancient and medieval world, is not a fantastic fiction, but an insightful description of our transgenic present and future? (shrink)

Public parks play important roles in conserving biodiversity, promoting environmental sustainability, fostering community engagement, and enhancing the overall well-being of residents in urban areas. Nevertheless, finance is needed to maintain and expand the greenspaces in the parks. The current study aims to examine how perceptions of biodiversity loss consequences and park visitation frequency influence the residents’ willingness to contribute financially to tree-planting projects in public parks. Employing the Bayesian Mindsponge Framework analytics on a dataset of 535 Vietnamese urban residents, we (...) discovered that perceived health loss and knowledge erosion as consequences of biodiversity loss and park visitation frequency are directly positively associated with financial donation willingness. Meanwhile, the perceived economic growth loss was found to be indirectly positively associated with donation willingness through park visitation frequency, whereas the perceived loss of nature-based recreation opportunities exhibits the opposite indirect association. Based on these results, communication strategies focusing on the multifaceted benefits of biodiversity preservation and investments in public parks are recommended to improve urban residents’ financial support to park panting initiatives, accessibility to greenspaces, and connections with nature. These are crucial for promoting an eco-surplus culture that enhances biodiversity conservation and human well-being. (shrink)

The “plant turn” in anthropology, while controversial, has led to a renewed focus on how humans relate to different species of plants. In this article, I aim to contribute to our knowledge of human-plant relationships by analyzing how historical actors used sacred plants in past ritual settings. I study criminal and civil cases involving shamans in late colonial Ecuador, with a focus on plant use. Legal records from 1782, 1793, 1800, and 1802 reveal information about the (...) use of fragrant plants believed to have transformative properties, the use of entheogens for non-visionary purposes, and even the incorporation of the sacred wanduc (Brugmansia sp) into the punishment of one shaman. This plant-focused approach to the reading of ethnohistorical documents provides a history of particular plants as they were used by individual actors in specific geographic and historical contexts, and sheds light on people’s understanding of human-plant-spirit relationships. (shrink)

Upshot: We consider that elementary students’ situated activities with geometric transformations and animation contain the seeds of complex, and eventually, mathematically generalizable and abstract reasoning. Further studies can explore such technologically-based activities’ potential as building blocks for flexible, creative, and formalized knowledge.

Plant‐specific NAC transcription factors (TFs) evolve during the transition from aquatic to terrestrial plant life and are amplified to become one of the biggest TF families. This is because they regulate genes involved in water conductance and cell support. They also control flower and fruit formation. The review presented here focuses on various properties, regulatory intricacies, and developmental roles of NAC family members. Processes controlled by NACs depend majorly on their transcriptional properties. NACs can function as both activators (...) and/or repressors. Additionally, their homo/hetero dimerization abilities can also affect DNA binding and activation properties. The active protein levels are dependent on the regulatory cascades. Because NACs regulate both development and stress responses in plants, in‐depth knowledge about them has the potential to help guide future crop improvement studies. (shrink)

It is provocative, but not uncommon, to compare the work of art to a plant. Art is inseparable from the aim to pass on knowledge to future generations, just as plants strive to reproduce. This paper forwards the art-plant hypothesis that views works of art and plants not only as structurally similar, but teleologically united. We look to two models of art to test this hypothesis: earthworks of the land art movement, and the ancient Greek concept of (...) craft or techne. Plant grafting serves as an example artform that is instructive for crafting a more sustainable world. We approach plant grafting as a sustainable technology in an age of genetic monopolization, and as a powerful metaphor for our common roots and responsibility to create a better world. (shrink)

This paper examines classification practices in the domain of plant data semantics, and particularly methods used to label plant traits to foster the collection, management, linkage and analysis of data about crops across locations—which crucially inform research and interventions on plants and agriculture. The efforts required to share data place in sharp relief the forms of diversity characterizing the systems used to capture the biological and environmental characteristics of plant variants: particularly the biological, cultural, scientific and semantic (...) diversity affecting the identification and description of plant traits, the methods used to generate and process data, and the goals and skills of those with relevant expertise—including farmers and breeders. Through a study of the Crop Ontology (which explicitly recognizes and negotiates diversity) and its application to cassava breeding, I argue for a process-sensitive approach to the naming of plant traits that focuses on documenting environmental processes instead of biological products. I claim that this approach can foster reliable linkage and robust re-use of plant data, while at the same time facilitating dialogue between data scientists, plant researchers, breeders, and other relevant experts in ways that crucially inform agricultural interventions. I conclude that the study of data semantics and related descriptors constitutes a productive and underexplored way to think about the epistemic import of naming traits within plant science. The effort to articulate semantic differences among plant varieties and methods of data processing can generate newly inclusive ways to develop and communicate biological knowledge. In turn, such practices have the potential to defy existing understandings of systematisation and hierarchies of expertise in biology, thus bolstering the extent to which plant science can support biodiversity and sustainable agriculture. (shrink)