Alfalfa Nodule Enzymes Linking Carbon And Nitrogen Metabolism
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Alfalfa Nodule Enzymes Linking Carbon And Nitrogen Metabolism
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Author : Cynthia Arlene Henson
language : en
Publisher:
Release Date : 1983
Alfalfa Nodule Enzymes Linking Carbon And Nitrogen Metabolism written by Cynthia Arlene Henson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Alfalfa categories.
Compartmentation Of Nitrogen And Carbon Metabolism In Alfalfa Root Nodules
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Author : David Lowell Robinson
language : en
Publisher:
Release Date : 1993
Compartmentation Of Nitrogen And Carbon Metabolism In Alfalfa Root Nodules written by David Lowell Robinson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Regulation Of Carbon And Nitrogen Assimilatory Enzymes In Alfalfa Root Nodules
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Author : Scott Nicholas Twary
language : en
Publisher:
Release Date : 1991
Regulation Of Carbon And Nitrogen Assimilatory Enzymes In Alfalfa Root Nodules written by Scott Nicholas Twary and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Selection For Nodule Enzymes Of Nitrogen And Carbon Assimilation In Alfalfa Medicago Sativa L
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Author : David Lee Jessen
language : en
Publisher:
Release Date : 1984
Selection For Nodule Enzymes Of Nitrogen And Carbon Assimilation In Alfalfa Medicago Sativa L written by David Lee Jessen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
Overexpression Of Genes For Key Enzymes In Carbon C And Nitrogen N Metabolism Improves Performance Of Transgenic Alfalfa Plants
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Author : Harmanpreet Kaur
language : en
Publisher:
Release Date : 2018
Overexpression Of Genes For Key Enzymes In Carbon C And Nitrogen N Metabolism Improves Performance Of Transgenic Alfalfa Plants written by Harmanpreet Kaur and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Carbon and nitrogen are the crucial elements required by plants for their growth and development and the metabolic pathways for C and N are highly linked. To understand how these metabolic pathways interact, alfalfa plants were transformed using cytosolic soybean glutamine synthetase (GS1) gene and maize sucrose phosphate synthase gene (SPS), both driven by the CaMV35S promoter. While GS occupies a central role in nitrogen assimilation in both leaves and nodules, SPS plays a key role in C metabolism by catalyzing the synthesis of sucrose. In this study, the leaves and nodules of both classes of transformants have been analyzed at molecular and biochemical level. Both classes of transformants showed an increase in SPS enzyme activity and sucrose content in the leaves and nodules. The increase in GS activity has also been seen in the nodules of both classes of transformants. Furthermore, the 35S-GS transformants showed similar phenotype to that of 35S-SPS plants in terms of plant height, nodule number, and delayed flowering. Both classes of transformants showed several fold improved forage quality compared to control plants, suggesting that sucrose is a major determinant in plant growth and development. The data supports that sucrose may be directly functioning in the metabolic pathway or acting as a signaling molecule.
Plant Nitrogen
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Author : Peter J. Lea
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Plant Nitrogen written by Peter J. Lea and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
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.
Symbiotic Nitrogen Fixation
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Author : P. Graham
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Symbiotic Nitrogen Fixation written by P. Graham and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
During the past three decades there has been a large amount of research on biological nitrogen fixation, in part stimulated by increasing world prices of nitrogen-containing fertilizers and environmental concerns. In the last several years, research on plant--microbe interactions, and symbiotic and asymbiotic nitrogen fixation has become truly interdisciplinary in nature, stimulated to some degree by the use of modern genetic techniques. These methodologies have allowed us to make detailed analyses of plant and bacterial genes involved in symbiotic processes and to follow the growth and persistence of the root-nodule bacteria and free-living nitrogen-fixing bacteria in soils. Through the efforts of a large number of researchers we now have a better understanding of the ecology of rhizobia, environmental parameters affecting the infection and nodulation process, the nature of specificity, the biochemistry of host plants and microsymbionts, and chemical signalling between symbiotic partners. This volume gives a summary of current research efforts and knowledge in the field of biological nitrogen fixation. Since the research field is diverse in nature, this book presents a collection of papers in the major research area of physiology and metabolism, genetics, evolution, taxonomy, ecology, and international programs.
Legume Nitrogen Fixation In Soils With Low Phosphorus Availability
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Author : Saad Sulieman
language : en
Publisher: Springer
Release Date : 2017-06-10
Legume Nitrogen Fixation In Soils With Low Phosphorus Availability written by Saad Sulieman and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-10 with Technology & Engineering categories.
This thoughtful and provocative book provides a concise, up-to-date presentation of how current and projected future phosphorus scarcity will affect legume growth and their symbiotic nitrogen-fixing capabilities. It is a timely examination of the physiological and molecular responses of nodules to phosphorous deficiency in attempt to identify common principles. Students and researchers in the many disciplines related to crop productivity will find this title an exciting contribution in the area of plant stress physiology. The knowledge in this volume can also aid plant breeders, particularly through new methods of genetic engineering, in developing unique and adaptive cultivars with higher symbiotic efficiency. The awareness of the rapidly rising world population must translate into a parallel increase in agricultural production in order to sustain the growing population both now and in the future. Hence, the demand for food crops to produce proteins and vegetable oil for human consumption is going to increase considerably during the coming years. The essential role of legumes in agriculture is well-recognized, given the abundant levels of proteins and oils found in plants along with their enormous contribution to the sustainability of agricultural systems and human health. The capacity of legumes to fix nitrogen (N2) in partnership with rhizobia provides an input-saving and resource-conserving alternative, thereby reducing the need for chemical fertilizers while enhancing overall crop productivity. The use of N2-fixing legumes to produce plant proteins results in a substantial decrease in the consumption of fossil fuels and therefore also in the agricultural effects to global warming. However, a major constraint to legume production is low soil phosphorus (P) availability, considering that an overwhelming majority of the world’s soils are classified as P-deficient. Low-P availability is especially problematic for legumes, since legume nodules responsible for N2 fixation have a high P requirement. Therefore, this book explains how nodule N2 fixation responds to low P availability, which is crucial for improving legume production and maintaining agricultural sustainability in the context of the global P crisis.
Advances In Nitrogen Fixation Research
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Author : C. Veeger
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Advances In Nitrogen Fixation Research written by C. Veeger and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
As for the preceding four International Symposia on Nitrogen Fixation, held in Pullman, Washington USA (1974); Salamanca, Spain (1976); Madison, Wisconsin, USA (1978); and Canberra, Australia (1980), the 5th Symposium held from August 28 - September 3, 1983 in Noordwijkerhout, The Netherlands, received the gene rous support of the Charles F. Kettering Foundation Research Laboratory and the Tennessee Valley Authority. This support has helped research progress in this broad field of science by offering a forum both for the exchange of ideas and for scientific summary and discussion as captured over the last 10 years in each of the four books published previously. Although all previous meetings were well attended, the present conference was the largest so far. 550 scien tists from 60 different countries attended the "Leeuwenhorst Conference", re presenting the many different disciplines actively involved in research in this field: chemists, biochemists, molecular biologists, geneticists, microbiologists, plant physiologists, agriculturalists. A large number of them had to go through a difficult period to raise the necessary funds to attend. In addition, a parallel meeting of "policymakers" from Southeast Asia, Africa and South America was held under the auspices of Crosscurrents International Institute, Dayton, OR, USA and the United Nations University, Tokyo, Japan. These participants attended some of the scientific sessions to benefit from the vision of a number of scientists at the symposium.
Genes Involved In Microbe Plant Interactions
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Author : D.P.S. Verma
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Genes Involved In Microbe Plant Interactions written by D.P.S. Verma and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Interdependence between species is a law of nature. The degree of this interdependence is vividly evident in the plant-microbial world. Indeed, there is no axenic plant in nature and one finds various forms of interac tions between these two kingdoms ranging from completely innocuous to obligate parasitic. Most of these interactions are poorly understood at the molecular and physiological levels. Only those few cases for which a molecular picture is emerging are discussed in this volume. With the advent of recombinant DNA technology and the realization that some of these interactions are very beneficial to the host plant, a spate of activity to understand and manipulate these processes is occurring. Microbes interact with plants for nutrition. In spite of the large number of plant-microbe interactions, those microbes that cause harm to the plants (i. e. , cause disease) are very few. It is thus obvious that plants have evolved various defense mechanisms to deal with the microbial world. The mecha nisms for protection are highly diverse and poorly understood. Some pathogens have developed very sophisticated mechanisms to parasitize plants, an excellent example for this being crown gall caused by a soil bac terium, Agrobacterium tumefaciens. A remarkable ingenuity is exhibited by this bacterium to manipulate its host to provide nitrogenous compounds which only this bacterium can catabolize. This is carried out by a direct gene transfer mechanism from bacteria to plants.