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Vitamin C (ascorbic acid) is a key vitamin to animals and plants. This book looks at all aspects of vitamin C; its chemical and biochemical properties, its role in various plants and animals and its effect on our health. Written by an international team of experts, together they represent much of the expertise on vitamin C throughout the world.
Oxidation-reduction (i.e. redox) processes at the plasma membrane of any cell have been attracting more and more attention, both in basic and in applied research, since the first workshop dealing with the plasma membrane oxidoreductases was organized in Cordoba, Spain, in 1988. This evolution is evident considering the numerous cell functions performed by plasma membrane redox systems not only in healthy cells but also in cells that escaped from the normal metabolic control (e.g. cancer cells) and cells under attack by pathogens. Plasma membrane redox processes have now been demonstrated to play an essential role in growth control and defense mechanisms of these cells. The great importance of the plasma membrane redox systems originates in the fact that they are located in the membrane which is essentially the site of communication between the living cell and its environment. We may say that the plasma membrane can be considered as the "sensory part" of the cell. No chemical substance can enter the cell interior without interaction with the plasma membrane.
This is the premier, single-source reference on redox biochemistry, a rapidly emerging field. This reference presents the basic principles and includes detailed chapters focusing on various aspects of five primary areas of redox biochemistry: antioxidant molecules and redox cofactors; antioxidant enzymes; redox regulation of physiological processes; pathological processes related to redox; and specialized methods. This is a go-to resource for professionals in pharmaceuticals, medicine, immunology, nutrition, and environmental fields and an excellent text for upper-level students.
This book presents evidence-based approaches and techniques used to diagnose and manage organic solutes, oxidative stress, and antioxidant enzymes in crop plants under abiotic stressors. It discusses strategies in abiotic stress tolerance including osmoregulation, osmoprotectants, and the regulation of compatible solutes and antioxidant enzymes in plants. With contributions from 49 scholars worldwide, this authoritative guide is educational for scientists working with plants and abiotic stressors. Provides comprehensive coverage of all aspects of abiotic stress, from abiotic stresses’ effects on plant growth, development, and defense mechanisms, to functionality of enzymatic and non-enzyma...
Although the term redox covers an important number of chemical reactions, biochemists are more familiar with reactions involving the reactions mediated by electron transfer chains associated with respiration, the thiol-disulfide exchanges and the reactions occurring in the presence of free radicals. More recently, the importance of these reactions in the living world and in medicine has been recognized by biochemists, biologists, physiologists, physicians, etc. The importance of the subject in both fundamental and is reflected by the abundance of interesting reviews applied science concerning the subject (Cadenas, 1989, Del Maestro, 1991) and books (Dreosti, 1991; Rice-Evans and Burdon, 1994...
This volume contains the lectures given at the NATO Advanced Study Institute on "Biophysics of Photoreceptors and Photomovements in Microorganisms" held in Tir renia (Pisa), Italy, in September 1990. The Institute was sponsored and mainly funded by the Scientific Affairs Division of NATO; the Physical Science Committee and the Institute of Biophysics of National Research Council of Italy also supported the School and substantially contributed to its success. It is our pleasant duty to thank these institu tions. Scientists from very different backgrounds contributed to the understanding of this fast developing field of research, which has seen considerable progress during the last years. The ...
Rambling of an elderly biochemist Most biochemists of my generation, who were trying to discover the pathways of metabolism, simply ignored membranes; or regarded them as a nuisance. Think of the difficulties experienced in studies on cytochromoxidase which one could not separate from « insoluble material )} or again of the desperate efforts during a quarter of a century to unravel oxidative phosphorylation without paying much attention to lipidic membranes, altough the system was known to be associated with them. Hence the amazement and the general skepticism that met at first Mitchell's theory, which was giving membranes the central function they deserve in oxidative phosphorylation and p...
Aquaporins (AQPs), a class of integral membrane proteins, form channels facilitating movement of water and many other solutes. In solute transport systems of all living organisms including plants, animals and fungi, AQPs play a vital role. Plants contain a much higher number of AQP genes compared to animals, the likely consequence of genome duplication events and higher ploidy levels. As a result of duplication and subsequent diversification, plant AQPs have evolved several subfamilies with very diverse functions. Plant AQPs are highly selective for specific solutes because of their unique structural features. For instance, ar/R selectivity filters and NPA domains have been found to be key e...
The Editorial Office of Frontiers in Plant Science would like to thank all the Chief Editors, Associate Editors and Review Editors that played an integral part in Frontiers’ innovative Collaborative Peer-Review process in 2020. In particular, we would like to recognize and thank Prof. Joshua L. Heazlewood – our now former Field Chief Editor, for his commitment, support and enthusiasm for the Plant Science field. Josh’s dedication and leadership has helped Frontiers in Plant Science become the most cited journal in the field with a strong editorial community. Looking forward, we’re excited to welcome Prof. Yunde Zhao, as our new Field Chief Editor in 2021. Having been with Frontiers in Plant Science since 2017, Yunde has contributed extensively to the development of the journal and will continue to ensure the journal goes from strength to strength.