Download or read book Understanding the Physiological Role of Amino Acid Transport Processes in Pea Pisum Sativum L Metabolism and Performance written by Matthew G. Garneau and published by . This book was released on 2018 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is an essential nutrient that plants require in large amounts for successful growth and reproduction. Following nitrogen acquisition from the atmosphere or soil, temperate legumes such as pea (Pisum sativum L.) assimilate nitrogen to amino acids, which are used for metabolism, transiently stored, or transported via the vasculature to growing sinks such as developing leaves, fruits, and seeds. This research investigates the role of plasma membrane transporters in amino acid partitioning in pea plants and their importance for plant metabolism and development. First, the role of a broad specific amino acid transporter in source to sink partitioning of nitrogen and plant productivity was analyzed using pea plants overexpressing (OE) amino acid permease 1 (PsAAP1) simultaneously in the phloem and developing cotyledons. Transgenic PsAAP1 OE plants demonstrated increased phloem and seed loading of amino acids, triggering improved seed development, and seed protein accumulation. Results further resolved that phloem loading of amino acids exerts regulatory control over nitrogen and carbon acquisition and metabolism. Next, pea plants expressing a yeast cysteine/methionine transporter (MUP1) in the phloem and developing seeds were produced in the attempt to increase sulfur allocation to sinks and seed protein quality. Results showed that phloem levels of methionine, other amino acids and sucrose were increased, while delivery of these metabolites to individual seeds, as well as seed protein amounts were unchanged. Furthermore, the MUP1 plants produced more shoot biomass and higher seed yields than wild-type, supporting that changes in source to sink allocation of organic sulfur, nitrogen, and carbon promotes sink development in MUP1 plants. Finally, the function of pea amino acid permease 6 (PsAAP6) in organic nitrogen export from root nodules was examined. Localization studies resolved that PsAAP6 is expressed in the nodule cortex cells. Repression of PsAAP6 demonstrated that the transporter is essential for amino acid translocation from nodules to the shoot and roots. However, transporter activity did not affect biological nitrogen fixation and nodule metabolism, suggesting that pea nodule function is regulated by the shoot nitrogen status, rather than nodule nitrogen levels and/or partitioning processes.
Download or read book Amino Acids in Plants Regulation and Functions in Development and Stress Defense written by Maurizio Trovato and published by Frontiers Media SA. This book was released on 2021-12-22 with total page 373 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 Agrindex written by and published by . This book was released on 1995 with total page 954 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 1991-04 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cellular and Molecular Biology of Plant Seed Development written by Brian A. Larkins and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: The beginnings of human civili zation can be traced back to the time , ne- ly 12 ,000 years ago , when th e early humans gradually ch anged from a life of hunting and gathering food , to producing food. This beginning of pri- tive agriculture ensured a dependable supply of food , and fostered the living together of people in groups and the development of s o c i e ty. During th is time, plant s e e ds were recognized a s a valuable s o ur c e of food and nutrition , and began to be used for growing plants for food. Ever s i n c e , plant seeds have played an important role in the development of the human civilization . Even today, s e e ds of a few crop s p e c i e s , s uc h as the cereals and legume s, are the primary s o u r c e of most human food , and the predominant commodity in international agriculture. Owing to their great importance as food for human s and in international trade , seeds have been a favorite object of s t u d y by developmental biologists and physiologi sts , nutritionist s and chem i sts . A wealth of useful information i s available on th e biology of seed s .
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 1998 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grapevine Molecular Physiology Biotechnology written by Kalliopi A. Roubelakis-Angelakis and published by Springer Science & Business Media. This book was released on 2009-06-04 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grapevine is one of the most widely cultivated plant species worldwide. With the publication of the grapevine genome sequence in 2007, a new horizon in grapevine research has unfolded. Thus, we felt that a new edition of ‘Molecular Biology & Biotechnology of the Grapevine’ could expand on all the latest scientific developments. In this edition and with the aid of 73 scientists from 15 countries, ten chapters describe new aspects of Grapevine Molecular Physiology and Biotechnology and eleven chapters have been revised and updated. This book is intended to be a reference book for researchers, scientists and biotechnological companies, who want to be updated in viticultural research, but also it can be used as a textbook for graduate and undergraduate students, who are interested in the Molecular Biology and Biotechnology of Plants with an emphasis on the Grapevine.
Download or read book Amino Acid Biosynthesis Pathways Regulation and Metabolic Engineering written by Volker F. Wendisch and published by Springer Science & Business Media. This book was released on 2007-03-24 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the current knowledge of fundamental as well as applied microbiology of amino acids. Coverage details the amino acid biosynthetic pathways, their genetic and biochemical regulation, transport of amino acids and genomics of producing microorganisms. The book also examines the metabolic engineering of microorganisms for the biotechnological production of amino acids for use as pharmaceuticals and as food and feed additives.
Download or read book Plant Environment Interactions written by František Baluška and published by Springer Science & Business Media. This book was released on 2009-03-03 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our image of plants is changing dramatically away from passive entities merely subject to environmental forces and organisms that are designed solely for the accumulation of photosynthate. Plants are revealing themselves to be dynamic and highly sensitive organisms that actively and competitively forage for limited resources, both above and below ground, organisms that accurately gauge their circumstances, use sophisticated cost-benefit analysis, and take clear actions to mitigate and control diverse environmental threats. Moreover, plants are also capable of complex recognition of self and non-self and are territorial in behavior. They are as sophisticated in behavior as animals but their potential has been masked because it operates on time scales many orders of magnitude less than those of animals. Plants are sessile organisms. As such, the only alternative to a rapidly changing environment is rapid adaptation. This book will focus on all these new and exciting aspects of plant biology.
Download or read book Physiology and Biochemistry of Metal Toxicity and Tolerance in Plants written by M.N. Prasad and published by Springer Science & Business Media. This book was released on 2002-02-28 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to give an overview of the most important aspects of physiological and biochemical basis for metal toxicity and tolerance in plants. The book is expected to serve as a reference to university and college teachers, students of plant sciences, environmental biology, environmental biotechnology, agriculture, horticulture, forestry, plant molecular biology, and genetics.
Download or read book Mineral Nutrition of Higher Plants written by Horst Marschner and published by Gulf Professional Publishing. This book was released on 1995 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents the principles of mineral nutrition in the light of current advances. For this second edition more emphasis has been placed on root water relations and functions of micronutrients as well as external and internal factors on root growth and the root-soil interface.
Download or read book Sulfur Metabolism in Plants written by Luit J. De Kok and published by Springer Science & Business Media. This book was released on 2012-06-19 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains the invited and a selection of the contributed papers of the 8th International Workshop on Sulfur Metabolism in Higher Plants, which was held at Department of Forest and Ecosystem Science, University of Melbourne, Water Street, Creswick, Victoria 3363, Australia from November 22-27, 2010. Content of the volume shows that the understanding of sulfur metabolism in plants and the interaction of the environment are rapidly progressing. This volume covers various aspects of the regulation of sulfate uptake and assimilation in plants, from a cellular to a whole plant level, and additionally emphasizes interactions with other minerals. Moreover the significance of sulfur metabolism in biotic and abiotic stress responses, in food security and quality, and in relation to interactions with global change factors is discussed in detail.
Download or read book Plant Amino Acids written by Bijay K. Singh and published by CRC Press. This book was released on 1998-10-27 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the basic knowledge of the regulation of biosynthesis of various amino acids in plants and the application of this knowledge to the discovery of novel inhibitors of amino acid biosynthesis and for enhancing the nutritional value of plant products. Provides an exhaustive list of pathway inhibitors.
Download or read book Advances In Plant Physiology Vol 4 written by A. Hemantaranjan and published by Scientific Publishers. This book was released on 2002-07-01 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researches have made tremendous progress in the area of Plant Physiology, greatly increasing our understanding of living processes, necessary for biotechnological research. Different volumes of the treatise ``Advances in Plant Physiology'' covers the entire spectrum of Plant Physiology including the Plant Molecular Biology in order to encourage meaningful research in the coming twenty-first century. The true endeavor in this direction is the result of comprehensive, authoritative and timely publication of this valuable treatise, provides the reader with the most recent information, views and references focused on individual topics through a rich collection of reviews contributed by pioneer workers and of those actively engaged in the studies of various specific areas in different parts of the world with extensive experience, established record of eminence and noted authorities. In fact, this treatise is a treasure for interdisciplinary exchange of information and the approach to topic ranges from theoretical to applied molecular to organismic and single to multivariable systems. Apart from fulfilling the need of this treatise for research teams and scientists actively working in the areas of plant physiology biochemistry and plant molecular biology in universities institutes and research laboratories throughout the world, it would be extremely a useful book and a voluminous reference material for acquiring advanced knowledge by students in response to innovative courses in Plant Physiology, Plant Biochemistry, Agronomy, Genetics and Plant Breeding, Genetic Engineering, Microbiology, Plant Biotechnology and Botany. Over eighteen (18) chapters of Vol. 1 extensively elucidate the needful topics of Biological Nitrogen Fixation, Plant Cell and Tissue Culture, Plant Metabolism , certain rare Techniques in Plant Physiology, Herbicides Physiology, Plant Growth Regulators, Physiology of Rooting, Tree Physiology, Stress Physiology (in part) and Growth and Development Hopefully, Vol. II will comprise other important topics.
Download or read book Abiotic Stress Response in Plants written by Arun Shanker and published by BoD – Books on Demand. This book was released on 2011-08-29 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants, unlike animals, are sessile. This demands that adverse changes in their environment are quickly recognized, distinguished and responded to with suitable reactions. Drought, heat, cold and salinity are among the major abiotic stresses that adversely affect plant growth and productivity. In general, abiotic stress often causes a series of morphological, physiological, biochemical and molecular changes that unfavorably affect plant growth, development and productivity. Drought, salinity, extreme temperatures (cold and heat) and oxidative stress are often interrelated; these conditions singularly or in combination induce cellular damage. To cope with abiotic stresses, of paramount significance is to understand plant responses to abiotic stresses that disturb the homeostatic equilibrium at cellular and molecular level in order to identify a common mechanism for multiple stress tolerance. This multi authored edited compilation attempts to put forth an all-inclusive biochemical and molecular picture in a systems approach wherein mechanism and adaptation aspects of abiotic stress are dealt with. The chief objective of the book hence is to deliver state of the art information for comprehending the effects of abiotic stress in plants at the cellular level.
