Peroxisomes And Their Key Role In Cellular Signaling And Metabolism

Author: Luis A. del Rio
Publisher: Springer Science & Business Media
ISBN: 9400768893
Size: 26.82 MB
Format: PDF
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Peroxisomes are a class of ubiquitous and dynamic single membrane-bounded cell organelles, devoid of DNA, with an essentially oxidative type of metabolism. In recent years it has become increasingly clear that peroxisomes are involved in a range of important cellular functions in almost all eukaryotic cells. In higher eukaryotes, including humans, peroxisomes catalyze ether phospholipids biosynthesis, fatty acid alpha-oxidation, glyoxylate detoxification, etc, and in humans peroxisomes are associated with several important genetic diseases. In plants, peroxisomes carry out the fatty acid beta-oxidation, photorespiration, metabolism of ROS, RNS and RSS, photomorphogenesis, biosynthesis of phytohormones, senescence, and defence against pathogens and herbivores. In recent years it has been postulated a possible contribution of peroxisomes to cellular signaling. In this volume an updated view of the capacity and function of peroxisomes from human, animal, fungal and plant origin as cell generators of different signal molecules involved in distinct processes of high physiological importance is presented.

Nitric Oxide In Plants Metabolism And Role In Stress Physiology

Author: M. Nasir Khan
Publisher: Springer
ISBN: 3319067109
Size: 28.33 MB
Format: PDF, Kindle
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This book covers the key features of nitric oxide (NO) in plants. Comprising nine chapters, Part I highlights its metabolism and identification in plants. Part II, which consists of eight chapters, focuses on the chemical, physical and biochemical properties of the NO molecule and its derivatives; on its functional role and mode of action; and on its signaling and interaction with phytohormones, mineral nutrients, biomolecules, ions and ion channels in plants under abiotic stresses. Combining the expertise of leading researchers in the field, the book provides a concise overview of plant NO biology and offers a valuable reference work.

Molecular Machines Involved In Peroxisome Biogenesis And Maintenance

Author: Cecile Brocard
Publisher: Springer
ISBN: 3709117887
Size: 53.99 MB
Format: PDF, Kindle
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In eukaryotes, lipid metabolism requires the function of peroxisomes. These multitasking organelles are also part of species-specific pathways such as the glyoxylate cycle in yeast and plants or the synthesis of ether lipid in mammals. Proteins required for the biogenesis of peroxisomes typically assemble in large molecular complexes, which participate in membrane formation, protein transport, peroxisome duplication and - inheritance during cell division. Peroxisomal function is essential for life. Mutations in PEX genes, encoding for biogenesis factors, are often associated with lethal disorders. The association of peroxisomes with other organelles suggests an extensive participation in organellar crosstalk. This book represents a state-of-the-art review in the field of peroxisome research encompassing the cell and molecular biology of peroxisome biogenesis and its diseases, the protein complexes involved in this process and the modern technologies applied to study them. The book is intended for graduate students, researchers and lecturers in biochemistry, molecular and cell biology with a biomedical background.

Fungal Jewels Secondary Metabolites

Author: Nancy Keller
Publisher: Frontiers Media SA
ISBN: 2889451364
Size: 21.30 MB
Format: PDF
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Fungal natural products are friends and foes of humans such as deleterious mycotoxins, cytotoxic, carcinogenic compounds or beneficial compounds such as antibiotics, fungicides, insecticides, antiviral and antitumor metabolites. Understanding fungal diversity and estimation of fungal species on our planet poses a great challenge to researchers. This complexity is further multiplied by secondary metabolite diversity of fungi, which requires interdisciplinary studies. It is extremely important to understand the fungal secondary metabolism to stop human, animal and plant diseases caused by fungi and harvest their valuable metabolites. Furthermore, many secondary metabolite gene clusters are silenced under laboratory conditions. It is vital to develop effective methods to activate those clusters in order to discover novel potent metabolites. This e-book is a compilation of original review articles contributed by leading fungal secondary metabolite researchers with a wide range of expertise. Important aspects of fungal secondary metabolism, including regulation, genome mining, evolution, synthetic biology and novel methods have been discussed. This book will be a great source to those people, who are interested in understanding overall structure, diversity and regulation of production of these tiny but precious chemicals.

Ascorbate Glutathione Pathway And Stress Tolerance In Plants

Author: Naser A. Anjum
Publisher: Springer Science & Business Media
ISBN: 9789048194049
Size: 23.23 MB
Format: PDF, Docs
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Plants are sessile organisms that live under a constant barrage of biotic and abiotic insults. Both biotic and abiotic stress factors have been shown to affect various aspects of plant system including the acceleration in the formation of reactive oxygen species (ROS). The ascorbate (AsA)-glutathione (GSH) pathway is a key part of the network of reactions involving enzymes and metabolites with redox properties for the detoxification of ROS, and thus to avert the ROS-accrued oxidative damage in plants. The present book mainly deals with the information gained through the cross-talks and inter-relationship studies on the physiological, biochemical and molecular aspects of the cumulative response of various components of AsA-GSH pathway to stress factors and their significance in plant stress tolerance.

Oxidative Stress In Plants

Author: Dirk Inze
Publisher: CRC Press
ISBN: 0203303148
Size: 49.31 MB
Format: PDF, ePub
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Plants depend on physiological mechanisms to combat adverse environmental conditions, such as pathogen attack, wounding, drought, cold, freezing, salt, UV, intense light, heavy metals and SO2. Many of these cause excess production of active oxygen species in plant cells. Plants have evolved complex defense systems against such oxidative stress. The study of these mechanisms has become a fast-moving, important field to many biologists. Written and edited by world-leading scientists, Oxidative Stress in Plants explores the current knowledge of the mechanisms by which various biotic and abiotic environmental stress conditions produce oxygen radicals. The text considers the biochemistry and molecular biology of both non-enzymatic (vitamin C, glutathione) and enzymatic systems which eliminate active oxygen species. In addition, the book discusses evidence that active oxygen species and antioxidants act as signals which trigger defense reactions.