© The Author 2016. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved.Cell walls of grasses, including cereal crops and biofuel grasses, comprise the majority of plant biomass and intimately influence plant growth, development and physiology. However, the functions of many cell wall synthesis genes, and the relationships among and the functions of cell wall components remain obscure. To better understand the patterns of cell wall accumulation and identify genes that (...) act in grass cell wall biosynthesis, we characterized 30 samples from aerial organs of rice at 10 developmental time points, 3-100 d post-germination. Within these samples, we measured 15 cell wall chemical components, enzymatic digestibility and 18 cell wall polysaccharide epitopes/ligands. We also used quantitative reverse transcription-PCR to measure expression of 50 glycosyltransferases, 15 acyltransferases and eight phenylpropanoid genes, many of which had previously been identified as being highly expressed in rice. Most cell wall components vary significantly during development, and correlations among them support current understanding of cell walls. We identified 92 significant correlations between cell wall components and gene expression and establish nine strong hypotheses for genes that synthesize xylans, mixed linkage glucan and pectin components. This work provides an extensive analysis of cell wall composition throughout rice development, identifies genes likely to synthesize grass cell walls, and provides a framework for development of genetically improved grasses for use in lignocellulosic biofuel production and agriculture. (shrink)

Arbuscular mycorrhiza (AM), a type of plant‐fungal endosymbiosis, and nodulation, a bacterial‐plant endosymbiosis, are the most ubiquitous symbioses on earth. Recent findings have established part of a shared genetic basis underlying these interactions. Here, we approach root endosymbioses through the lens of the homology and modularity concepts aiming at further clarifying the proximate and ultimate causes for the establishment of these biological systems. We review the genetics that underlie interspecific signaling and its concomitant shift in genetic programs for (...) either partner. Also, through the comparative analysis of genetic modules shared by AM and nodulation symbioses, we identify fundamental nodes in these networks, suggesting the elemental steps that may have permitted symbiotic adaptation. Here, we show that this approach, allied to recent technical advances in the study of genetic systems architecture, can provide clear testable hypotheses for the advancement of our understanding on the evolution and development of symbiotic systems. (shrink)

This paper examines an issue that is becoming increasingly relevant as the pressures of a warming planet, changing climate and changing ecosystems ramp up. The broad context for the paper is the intragenerational, intergenerational, and interspecies equity implications of changing the climate and the value orientations of adapting to such change. In addition, the need to stabilize the planetary climate by urgent mitigation of change factors is a foundational ethical assumption. In order to avoid further animal and plant extinctions, (...) or at the very least, their increased vulnerability to becoming rare and endangered; the systematic assisted colonization of “at risk” species is being seriously considered by scientists and managers of biodiversity. The more practical aspects of assisted colonization have been covered in the conservation biology literature; however, the ethical implications of such actions have not been extensively examined. Our discussion of the value issues, using a novel case study approach, will rectify the limited ethical analysis of the issue of assisted colonization of species in the face of climate change pressures. Beyond sustainability ethics, both animal and environmental ethical approaches will be used and intrinsic versus instrumental value orientations in the literature shall form the basis of our discussion. After the application of all the ethical approaches to the case studies, we conclude that without mitigation and the prospect of a future stable climate, assisted colonization will be involved in an inherently unethical process and a “move and lose it” outcome. With mitigation, there is wide-ranging ethical support for assisted colonization. (shrink)

Scholars and environmentalists in the industrialized nations have repeatedly deplored the destruction of tropical forests as a byproduct of economic development. Their position is based upon scientific, economic, and ethical arguments. Proponents of economic development from the tropical nations recognize that its immediate benefits are enjoyed by their own relatively poor populations while the benefits of habitat preservation are enjoyed by the world as a whole. So far, few institutional mechanisms have been developed that can reconcile the competing perspectives. In (...) addition to reviewing the arguments in favor of and against habitat preservation, this paper proposes some innovative institutions that can both satisfy developmental aspirations and account for the global benefits of habitat preservation. (shrink)

Scholars and environmentalists in the industrialized nations have repeatedly deplored the destruction of tropical forests as a byproduct of economic development. Their position is based upon scientific, economic, and ethical arguments. Proponents of economic development from the tropical nations recognize that its immediate benefits are enjoyed by their own relatively poor populations while the benefits of habitat preservation are enjoyed by the world as a whole. So far, few institutional mechanisms have been developed that can reconcile the competing perspectives. In (...) addition to reviewing the arguments in favor of and against habitat preservation, this paper proposes some innovative institutions that can both satisfy developmental aspirations and account for the global benefits of habitat preservation. (shrink)

Understanding terrestrial carbon metabolism is critical because terrestrial ecosystems play a major role in the global carbon cycle. Furthermore, humans have severely disrupted the carbon cycle in ways that will alter the climate system and directly affect terrestrial metabolism. Changes in terrestrial metabolism may well be as important an indicator of global change as the changing temperature signal. Improving our understanding of the carbon cycle at various spatial and temporal scales will require the integration of multiple, complementary and independent methods (...) that are used by different research communities. Tools such as air sampling networks, inverse numerical methods, and satellite data allow us to study the strength and location of the global- and continental-scale carbon sources and sinks. Bottom-up studies provide estimates of carbon fluxes at finer spatial scales and examine the mechanisms that control fluxes at the ecosystem, landscape, and regional scales. Bottom-up approaches include comparative and process studies that provide the necessary mechanistic information to develop and validate terrestrial biospheric models. An iteration and reiteration of top-down and bottom-up approaches will be necessary to help constrain measurements at various scales. We propose a major international effort to coordinate and lead research programs of global scope of the carbon cycle. (shrink)

A model is proposed which implicates molecular recognition systems as the major controlling factors in life cycle expression. It is envisaged that such systems are important in immune functioning and catabolic, metabolic molecule recognition at both inter- and intea-cellular level. These recognition systems have the following characteristics: Specific recognition molecules , e.g. vertebrate antibodies, invertebrate agglutinins and plant agglutinins may recognise specific substances, e.g. antigens, catabolic and metabolic molecules. The range of possible recognisable substances is very wide and variable. (...) The recognisers may themselves be recognised by other recognisers. Recognisers are usually produced in large amounts only on presentation of the appropriate recognisable molecule. The progressive introduction of new recognisable molecules increases the recogniser interaction, this interaction causing depression of some recogniser types and facilitation of other types among which may be recognisers specific for self components . Low juvenile viability is associated with a restricted range of available recognisers, high adult viability with increasing recogniser range and some auto-immunity/immune depression, senescence with a wide range of available recognisers and extensive auto-immunity/immune depression.Life cycle patterns and their control are discussed. It is suggested control mechanisms may include: Dietary restriction and in some periods complete nutritional abstinence. Specific recogniser depression, genes implicated here are the various antigens found on cell surfaces, in the serum and in various body fluids of vertebrates, e.g. ABO, MNSs, P, Rh, Le and other blood groups, the ABO and Le secretor antigens and the HL-A antigens. In addition the immune response and mixed lymphocyte culture loci are implicated. Finally life cycle control is discussed with relation to sexual selection. (shrink)

Many contemporary authors argue that since certain Hindu texts and traditions claim that all living beings are fundamentally the same as Brahman (God), these texts and traditions provide the basis for an environmental ethic. I outline three common versions of this argument, and argue that each fails to meet at least one criterion for an environmental ethic. This doesn’t mean, however, that certain Hindu texts and traditions do not provide the basis for an environmental ethic. In the last section of (...) the paper I briefly outline and defend an alternative, according to which all plants and animals have intrinsic value and direct moral standing in virtue of having a good. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:FDA Releases Draft Guidance on Regulation of Genetically Engineered AnimalsJohn P. Gluck (bio) and Mark T. Holdsworth (bio)On 18 September 2008, the U.S. Food and Drug Administration (FDA) issued a draft set of guidelines for those involved in developing genetically engineered animals with heritable recombinant DNA (rDNA) constructs and is requesting comment from industry and the public about their content. The document does not impose new regulations but details (...) how existing laws and regulations apply to genetically engineered (GE) animals and offers advice to developers on how to negotiate the laws in the most efficient and productive manner. The draft guidance document is not legally enforceable at this juncture, but the guidelines are recommendations reflecting the FDA's "current thinking on a topic."The modification of GE animals being developed for commercialization, which are the focus of the document, fall into six categories: modifications intended to (1) enhance food quality—e.g., faster growing fish and meats with better nutritional profiles; (2) improve animal health via increased resistance to disease—e.g., mastitis in dairy cattle and Bovine Spongiform Encephalopathy (BSE); (3) create so-called "biopharm" animals capable of producing therapeutic products such as insulin, clotting factors, and tissues for human transplantation; (4) reduce the barriers to human animal interaction—e.g., hypoallergenic pets; (5) develop valid animal models of human disease—e.g., Parkinson's disease, Lesh-Nyhan's syndrome, and cancer; and (6) improve production of industrial or consumer products such as fiber. The timing of the guidelines coincides with the FDA's belief in an expected boon in the number of GE animals approaching the stage of commercialization.The FDA's involvement in the approval process emerges from the new animal drug provisions of the Federal Food Drug and Cosmetic Act and the definition of what constitutes a drug. The Act defines a new animal drug as "an article (other than food) intended to affect the structure or any function of the body of... animals." A rDNA construct intended to affect the structure or function of an animal meets the definition of a new animal drug, regardless of whether the resulting GE animals are intended for human food or the production of pharmaceuticals or any other substances. [End Page 393]Before proceeding to a review of the draft guidelines, it is important briefly to set the controversies around GE animals in historical and ethical context.The Ethical DebateFrom its inception, the intentional genetic modification or genetic engineering of molecules, plants, and animals by the techniques of gene splicing has consistently elicited strong responses from both the scientific community and the public. There are some data to suggest that although the concerns of scientists fall primarily into the category of possible biohazards, those of the public also reflect great concern about the intrinsic moral issues, such as whether there is something fundamentally wrong with this line of work, making it a form of forbidden knowledge (see, e.g., Gaskell 1997). When news of Paul Berg's attempts in 1970 to graft the primate tumor virus (SV 40) onto the intestinal tract bacteria Escherichia coli for the purpose of studying how normal cells may be transformed into cancerous cells was shared with colleagues, he was strongly encouraged to reflect on the potential public health risks if somehow the altered bacteria broke containment and entered the environment. Thanks to Berg's leadership, these concerns soon resulted in conferences held in Asilomar, California, and New Hampton, New Hampshire, where the ethical responsibilities of microbiologists involved in this research were discussed. These initial discussions resulted in what has come to be known as "The Moratorium Letter" (Shattuck 1996) published in the journal Science in 1974. This letter, signed by 11 leaders in the field, actually recommended restrictions on several types of experiments that were considered to be particularly risky and stated "that adherence to our major recommendations will entail postponement or possibly abandonment of certain types of scientifically worthwhile experiments" (Berg 1974). An international conference on the issues came to similar conclusions about the need for a research moratorium for the sake of public safety. Recommendations arising from conference participants led to the formation of the National Institutes... (shrink)

Taxometric analyses were applied to the construct of psychopathy (as measured by the Psychopathy Checklist) and to several variables reflecting antisocial childhood, adult criminality, and criminal recidivism. Subjects were 653 serious offenders assessed or treated in a maximum-security institution. Results supported the existence of a taxon underlying psychopathy. Childhood problem behaviors provided convergent evidence for the existence of the taxon. Adult criminal history variables were continuously distributed and were insufficient in themselves to detect the taxon.

Graduate-level historical study is ideal for students intending to specialize in the topic, as well as those who only need a general treatment. Part I discusses traditional and symbolic logic. Part II explores the foundations of mathematics, emphasizing Hilbert’s metamathematics. Part III focuses on the philosophy of mathematics. Each chapter has extensive supplementary notes; a detailed appendix charts modern developments.

Graeme Laurie stepped down from the Chair in Medical Jurisprudence at the University of Edinburgh in 2019. This edited collection pays tribute to his extraordinary contributions to the field. Graeme has often spoken about the importance of 'legacy' in academic work and has forged a remarkable intellectual legacy of his own, notably through his work on genetic privacy, human tissue and information governance, and on the regulatory salience of the concept of liminality. The essays in this volume animate the concept (...) of legacy as lens of analysis for the study and practice of medical jurisprudence. In this light, legacy reveals characteristics of both benefit and burden, as both an encumbrance to and facilitator of the development of law, policy and regulation. Overall, the contributions reconcile the ideas of legacy and responsiveness and show that both dimensions are critical to achieve and sustain the health of medical jurisprudence itself as a dynamic, interdisciplinary and policy-engaged field of thinking. (shrink)

In his stimulating article on this topic Mr. Christopher Ehrhardt sought to show that there is no good reason to believe in any intervention by Philip of Macedon in Thessaly earlier than his campaign of 353. The second half of his paper is devoted to the date of Philip's capture of Pagasae, which Diodorus appears to put in the Athenian archon year 354/3 after the fall of Methone, a date adopted by most modern interpreters accepting the emendation for the unidentifiable (...) in the text of Diodorus. Ehrhardt shows well the difficulties of believing in any capture of Pagasae, the port of Pherae, earlier than the capture of Pherae itself, and concludes that the emendation is to be rejected. In this I think he is right, and I am joining him in dating the capture of Pagasae in 352 after Pherae itself had fallen. The first half of his paper, however, rejecting all the evidence suggesting other interventions by Philip in Thessaly earlier than 353, is much harder to accept, for two reasons. (shrink)