Download or read book Interactions Between Energy and Nitrogen Metabolism in Pisum Sativum written by Andries Jan Cornelis de Visser and published by . This book was released on 1984 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Nitrogen written by Peter J. Lea and published by Springer Science & Business Media. This book was released on 2001-02-26 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jointly published with INRA, Paris. This book covers all aspects of the transfer of nitrogen from the soil and air to a final resting place in the seed protein of a crop plant. It describes the physiological and molecular mechanisms of ammonium and nitrate transport and assimilation, including symbiotic nitrogen fixation by the Rhizobiacea. Amino acid metabolism and nitrogen traffic during plant growth and development and details of protein biosynthesis in the seeds are also extensively covered. Finally, the effects of the application of nitrogen fertilisers on plant growth, crop yield and the environment are discussed. Written by international experts in their field, Plant Nitrogen is essential reading for all plant biochemists, biotechnologists, molecular biologists and physiologists as well as plant breeders, agricultural engineers, agronomists and phytochemists.
Download or read book The effect of sulfur deficiency in pea Pisum sativum on factors related to nitrogen fixation and on sulfate transporters written by Parisa Pourmoayyed and published by Cuvillier Verlag. This book was released on 2016-07-25 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfur has a vital role in the plant life cycle. S deficiency reduces optimal yield and quality in legumes which lead to a reduction in nutritional value of food and feed. S deficiency also alters the symbiotic interaction between leguminous plants and soil nitrogen fixing bacteria which leads to a decline in N2 fixation rate. An efficient symbiotic nitrogen fixation (SNF) in the nodule demands a strong nutrient exchange between plant and bacterial cells. The plant symbiotic sulfate transporter (SST) supports adequate S supply for full activity of nodules. In the present study, I investigated how different levels of S supply affect the protein and mRNA expression of genes related to N2 fixation in Pisum sativum. Moreover, different sulfate transporter genes were identified in pea and the functional analysis was performed for the symbiotic sulfate transporter from pea after expression in yeast double mutant. Growth retardation was observed in both weak and severe S deficient plants while severe S deficiency led to a significant decline in total biomass and shoot dry weight. Chlorosis and yellowish leaves in severe S deficient plant were observed as a consequence of a 43% decline in the chlorophyll content of young leaves in comparison with the control plants. Both weak and severe S deficiency reduced nodule formation. Thus, nodules appeared smaller and green with less leghemoglobin content in the S deficient groups. Relative transcript abundance of leghemoglobin genes (PsLb5 and PsLb120) did not change significantly under S deficiency conditions in the vegetative phase, thus confirming that expression of both genes is essential to create a low O2 concentration in young nodules. In contrast, severe S deficiency during the generative phase reduced expression of leghemoglobin at mRNA and protein levels. Furthermore, the higher leghemoglobin content in the generative phase is indicative for a higher leghemoglobin demand of mature nodules to maintain a low O2 environment and to protect the nitrogenase for an effective SNF. Nitrogenase is encoded by the nifHDK gene cluster. Severe S deficiency reduced the relative transcript abundance of the β subunits (NifK gene) while expression of α subunits (NifD gene) was mostly unaffected. S deficiency conditions increased relative transcript abundance of ferredoxin to compensate the S limitation in the nodule. Furthermore, a higher level of ferredoxin expression in the generative phase compared to the vegetative phase might be accompanied by a more SNF activity in the generative phase. In contrast to the nodule, relative ferredoxin transcript abundance was reduced under severe S deficiency in the root and leaf tissues supporting sulfite reduction and NADP photo-reduction. Both severe and weak S deficiencies reduced the relative transcript abundance of ferredoxin in the young leaves more than the mature leaves because the mature leaves are the main site of sulfate storage and assimilation. Severe S deficiency reduced expression of the nodule-specific sulfate transporter (SST) in both vegetative and generative phase of plant life which confirms a disruption in sulfate transport in symbiosomes. Phylogenetic analysis of 14-full length sulfate transporter sequences from pea and other known sulfate transporters from the leguminous family revealed that they fall into five major groups. In conclusion, a reduced sulfate import into the nodule probably reduces the sulfate related metabolites and interrupts the expression and biosynthesis of nitrogenase, leghemoglobin and ferredoxin proteins and eventually leads to an interruption of SNF. Moreover, severe S deficiency could limit the S compounds and S containing amino acids essential for the synthesis of critical products such as chlorophyll, thus leading to a lower rate of photosynthesis and fewer energy sources for an efficient yield.
Download or read book SEBS 30 Root Development and Function written by P. J. Gregory and published by CUP Archive. This book was released on 1987-04-24 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1987 this book looks at root development and functions. Besides affecting the development of roots directly, the physical environment also influences the organisms associated with roots and thus affects their function. The papers presented in this volume pay equal attention to root development and root function in relation to the whole range of environmental factors including temperature, light, water, aeration, gravity and the mechanical strength of the soil. Consideration is also given to the effects of some of these factors on mycorrhizae and nitrogen-fixing bacteria. The final chapter reviews some of the main themes raised in the volume and indicates the way that research at the cellular and tissue levels may progress in the future.
Download or read book Simulation of Ecophysiological Processes of Growth in Several Annual Crops written by F. W. T. Penning de Vries and published by Int. Rice Res. Inst.. This book was released on 1989 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CO2 and biosphere written by Jelte Rozema and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international workshop on `CO2 and Biosphere' was held in Wageningen, the Netherlands on 15-19 November 1991 as part of the activities of the CO2 Commission of the Netherlands Organization for Scientific Research: this volume includes 32 papers presented at the workshop. The CO2 Commission stimulates and coordinates a broad range of research projects related to the greenhouse effect. This is reflected in the scope of papers presented, ranging from detailed analyses of ecological and physiological effects of atmospheric CO2 enrichment to biosphere-atmosphere aspects, such as regional evaporation, energy balance and ecosystem responses. Relevant directions for future research are indicated by presentations on carbon fluxes in the soil, secondary plant metabolism and plant-insect interactions.
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fixation of Pea Pisum Sativum L and Common Bean Phaselous Phaseolus Vulgaris L at Various Phosphorus Supply Levels written by Mai Mohammed Osman Deiab Ahmed and published by Cuvillier Verlag. This book was released on 2007 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photosynthetic Nitrogen Assimilation and Associated Carbon and Respiratory Metabolism written by C.H. Foyer and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to many textbooks, carbohydrates are the photosynthesis and mitochondrial respiration fluctuate in a circadian manner in almost every unique final products of plant photosynthesis. However, the photoautotrophic production of organic organism studied. In addition, external triggers and environmental influences necessitate precise and nitrogenous compounds may be just as old, in appropriate re-adjustment of relative flux rates, to evolutionary terms, as carbohydrate synthesis. In the algae and plants of today, the light-driven assimilation prevent excessive swings in energy/resource provision of nitrogen remains a key function, operating and use. This requires integrated control of the alongside and intermeshing with photosynthesis and expression and activity of numerous key enzymes in respiration. Photosynthetic production of reduced photosynthetic and respiratory pathways, in order to carbon and its reoxidation in respiration are necessary co-ordinate carbon partioning and nitrogen assim- ation. to produce both the energy and the carbon skeletons required for the incorporation of inorganic nitrogen This volume has two principal aims. The first is to into amino acids. Conversely, nitrogen assimilation provide a comprehensive account of the very latest developments in our understanding of how green is required to sustain the output of organic carbon cells reductively incorporate nitrate and ammonium and nitrogen. Together, the sugars and amino acids into the organic compounds required for growth.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Microbiology Fundamentals and Applications written by Jean-Claude Bertrand and published by Springer. This book was released on 2015-01-26 with total page 933 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a treatise on microbial ecology that covers traditional and cutting-edge issues in the ecology of microbes in the biosphere. It emphasizes on study tools, microbial taxonomy and the fundamentals of microbial activities and interactions within their communities and environment as well as on the related food web dynamics and biogeochemical cycling. The work exceeds the traditional domain of microbial ecology by revisiting the evolution of cellular prokaryotes and eukaryotes and stressing the general principles of ecology. The overview of the topics, authored by more than 80 specialists, is one of the broadest in the field of environmental microbiology. The overview of the topics, authored by more than 80 specialists, is one of the broadest in the field of environmental microbiology.
Download or read book Plant Biochemistry written by Caroline Bowsher and published by Taylor & Francis. This book was released on 2021-03-10 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Biochemistry focuses on the molecular and cellular aspects of each major metabolic pathway and sets these within the context of the whole plant. Using examples from biomedical, environmental, industrial and agricultural applications, it shows how a fundamental understanding of plant biochemistry can be used to address real-world issues. It illustrates how plants impact human activity and success, in terms of their importance as a food supply and as raw materials for industrial and pharmaceutical products, and considers how humans can benefit from exploiting plant biochemical pathways. All chapters in this second edition have been substantially revised to incorporate the latest research developments, and case studies include updates on progress in developing novel plants and plant products. The artwork, now in full color, superbly illustrates the key concepts and mechanisms presented throughout. Key features: Presents each topic from the cellular level to the ecological and environmental levels, placing it in the context of the whole plant. Biochemical pathways are represented as route maps, showing how one reaction interacts with another both within and across pathways. Includes comprehensive reading lists with descriptive notes to enable students to conduct their own research into topics they wish to explore further The wide-ranging approach of this book emphasizes the importance of teaching and learning plant biochemical pathways within the framework of what the pathway does and why it is needed. Illustrates the fundamental significance of plants, in terms of their importance as a food supply, as raw materials and as sources of novel products. Plant Biochemistry is invaluable to undergraduate students who wish to gain insight into the relevance of plant metabolism in relation to current research questions and world challenges. It should also prove to be a suitable reference text for graduates and researchers who are new to the topic or who wish to broaden their understanding of the range of biochemical pathways in plants.
Download or read book Pesticides Documentation Bulletin written by and published by . This book was released on 1968 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1986 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Proteomic Research 2 0 written by Setsuko Komatsu and published by MDPI. This book was released on 2019-06-24 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advancements in high-throughput “Omics” techniques have revolutionized plant molecular biology research. Proteomics offers one of the best options for the functional analysis of translated regions of the genome, generating a wealth of detailed information regarding the intrinsic mechanisms of plant stress responses. Various proteomic approaches are being exploited extensively for elucidating master regulator proteins which play key roles in stress perception and signaling, and these approaches largely involve gel-based and gel-free techniques, including both label-based and label-free protein quantification. Furthermore, post-translational modifications, subcellular localization, and protein–protein interactions provide deeper insight into protein molecular function. Their diverse applications contribute to the revelation of new insights into plant molecular responses to various biotic and abiotic stressors.
Download or read book Diabetes Literature Index written by and published by . This book was released on 1974 with total page 1816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insights in plant symbiotic interactions 2021 written by Andrea Genre and published by Frontiers Media SA. This book was released on 2023-03-15 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
