Polyphenol Oxidases (PPOs) in Plants

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Publisher : Springer
ISBN 13 : 9811057478
Total Pages : 137 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Polyphenol Oxidases (PPOs) in Plants by : Aravind Jukanti

Download or read book Polyphenol Oxidases (PPOs) in Plants written by Aravind Jukanti and published by Springer. This book was released on 2017-08-18 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is first of its kind exclusively dedicated to plant polyphenol oxidases (PPOs), highlighting their importance in the food processing industry. By reviewing the scientific developments of the past several decades, it offers a comprehensive overview of various aspects of plant PPOs, including chemistry, structure, functions, regulation, genetics/genomics and molecular aspects. PPOs are copper-containing proteins found in several plant species that catalyze the hydroxylation of o-monophenols to o-diphenols and oxidation of the o-dihydroxyphenols to o-quinones. Further, the quonines undergo self-polymerization or react with amines/thiol groups to produce brown/dark coloration of products. All the PPOs contain two Cu-binding sites (CuA and CuB) as their central domain, these interact with phenolic substrates and molecular oxygen. Several of the plant PPOs contain an N-terminal transit peptide (~80-100 amino acids ) necessary for plastid import. The PPOs occur in latent form that are activated by various treatments including acid and base shock, exposure to detergents or proteolytic degradation. The pH optimum of PPOs varies widely depending upon different plant species but is usually ~4.0 – 8.0. Similarly, the optimum temperature also varies as per the source and substrate involved ranging from 30 to 45 °C. Multiple PPO isoforms have been reported in several plant species, and the chromosomal location of PPOs has also been studied in some species. The physiological role (s) of PPOs is not entirely understood, but they could be involved in defense-related functions in plants. From an applied perspective, PPOs are implicated in enzymatic browning/darkening of cereal products, vegetables and fruits. Interestingly, browning is preferred in some instances like the processing of black tea, cocoa, and coffee as it enhances their quality by forming flavorful products. There have b een initiatives to specifically breed and develop cultivars with reasonably low PPO levels in the mature grain or fruit. Further, several types of inhibitors that reduce the PPO activity have also been identified. Despite their commercial/economic importance and the availability of literature on different aspects of PPOs in different plant species, this is the first book to provide basic information regarding PPOs. It is a valuable resource for researchers involved in quality-related research specifically in crops, vegetables and fruits. Further, as PPOs are also implicated in defense- or stress-related functions, the book is also useful to breeders, pathologists, molecular biologists, physiologists and entomologists.

Genetic Engineering of Plant Secondary Metabolism

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Publisher : Springer Science & Business Media
ISBN 13 : 1461525446
Total Pages : 371 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Genetic Engineering of Plant Secondary Metabolism by : Brian E. Ellis

Download or read book Genetic Engineering of Plant Secondary Metabolism written by Brian E. Ellis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume of Recent Advances in Phytochmistry you will find a record of the pioneering attempts of plant biochemists and molecular biologists to modify the patterns of secondary metabolism in plants, as presented at the 33rd annual meeting of the Phytochemical Society of North America, in Asilomar, California, on June 27 -July I, 1993. The studies described here represent a marriage of the newest of technologies with one of the oldest human activities, exploitation of plant chemistry. They also represent the beginning of a new era of phytochemical research, an era that will undoubtedly begin to provide answers to some of the long-standing questions that have absorbed plant biochemists for the past century. There is, for instance, a common deflating experience to which every worker in the area of plant secondary metabolism can probably relate. After hearing about the latest research findings regarding some aspect of remarkable compound "X", someone in the audience finally directs the inevitable question at the hapless speaker. "Tell me, is anything known as to the biological role of compound "X" in the plant?" The answer, in most cases, must be "essentially nothing"! This is a frustrating scenario for both the speaker and the audience, since the very fact that a complex biosynthetic pathway remains encoded in a plant genome points to an associated selective advantage. The problem is that establishing the nature and scale of that advantage is a very complex task.

Induced Plant Resistance to Herbivory

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Publisher : Springer Science & Business Media
ISBN 13 : 1402081820
Total Pages : 450 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Induced Plant Resistance to Herbivory by : Andreas Schaller

Download or read book Induced Plant Resistance to Herbivory written by Andreas Schaller and published by Springer Science & Business Media. This book was released on 2008-03-27 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely book provides an overview of the anatomical, chemical, and developmental features contributing to plant defense, with an emphasis on plant responses that are induced by wounding or herbivore attack. The book first introduces general concepts of direct and indirect defenses, followed by a focused review of the different resistance traits. Finally, signal perception and transduction mechanism for the activation of plant defense responses are discussed.

Protein Structure-Function Relationships in Foods

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Publisher : Springer Science & Business Media
ISBN 13 : 1461526701
Total Pages : 214 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Protein Structure-Function Relationships in Foods by : Rickey Y. Yada

Download or read book Protein Structure-Function Relationships in Foods written by Rickey Y. Yada and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food proteins constitute a diverse and complex collection of biological macro molecules. Although contributing to the nutritional quality of the foods we con sume, proteins also act as integral components by virtue of their diverse functional properties. The expression of these functional properties during the preparation, processing and storage of foods is largely dictated by changes to the structure or structure-related properties of the proteins involved. Therefore, germane to the optimal use of existing and future food protein sources is a thorough understanding of the nature of the relationships between structure and function. It is the goal of this book to aid in better defining these relationships. Two distinct sections are apparent: firstly, those chapters which address struc ture-function relationships using a variety of food systems as examples to demonstrate the intricacies of this relationship, and secondly, those chapters which discuss techniques used to either examine structural parameters or aid in establishing quantitative relationships between protein structure and function. The editors would like to thank all contributors for their assistance, co-operation and, above all, their patience in putting this volume together, and the following companies/organizations for their financial support without which it would not have been the success it was: Ault Foods Limited, Best Foods Canada Limited, Natural Sciences and Engineering Research Council of Canada, Ontario Ministry of Agriculture and Food, Quest International Canada Inc., and University of Guelph. R.Y.Y. R.LJ.

Enzymatic Browning and Its Prevention

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Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Enzymatic Browning and Its Prevention by : Chang Y. Lee

Download or read book Enzymatic Browning and Its Prevention written by Chang Y. Lee and published by . This book was released on 1995 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the chemistry, structure, and function of polyphenol oxidase. Covers the molecular biology of polyphenol oxidase. Describes the chemistry of enzymatic browning. Provides practical methods for preventing enzymatic browning in fruit and vegetable products. Valuable reading for chemists, molecular biologists, food scientists, and food technologists.

Enzymes in Food Technology

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Publisher : Springer
ISBN 13 : 9811319332
Total Pages : 419 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Enzymes in Food Technology by : Mohammed Kuddus

Download or read book Enzymes in Food Technology written by Mohammed Kuddus and published by Springer. This book was released on 2018-11-19 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The integration of enzymes in food processing is well known, and dedicated research is continually being pursued to address the global food crisis. This book provides a broad, up-to-date overview of the enzymes used in food technology. It discusses microbial, plant and animal enzymes in the context of their applications in the food sector; process of immobilization; thermal and operational stability; increased product specificity and specific activity; enzyme engineering; implementation of high-throughput techniques; screening of relatively unexplored environments; and development of more efficient enzymes. Offering a comprehensive reference resource on the most progressive field of food technology, this book is of interest to professionals, scientists and academics in the food and biotech industries.

Mechanisms of Plant Defense Responses

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Publisher : Springer Science & Business Media
ISBN 13 : 9401117373
Total Pages : 489 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Mechanisms of Plant Defense Responses by : B. Fritig

Download or read book Mechanisms of Plant Defense Responses written by B. Fritig and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on the mechanisms of plant defense responses to stress and pathogen attack has attracted much attention in recent years. This increasing interest stems from the fact that the tools of molecular biology now enable us to study the molecular basis of old biological concepts such as host-pathogen recognition (and particularly the gene for-gene relationship), hypersensitive cell death and systemic acquired resistance. Our knowledge about avirulence and resistance genes, elicitors, signal transduction and genes involved in plant defense is rapidly expanding. Moreover we are just beginning to test in planta the potential of these results for biotechnological applications, aimed at improving plant resistance to diseases. The 2nd Conference of the European Foundation for Plant Pathology, hosted by the "Societe Fran~aise de Phytopathologie", was devoted to "Mechanisms of plant defense responses" and was held in Strasbourg, France. It brought together over 350 scientists from universities, research institutes and private sectors of 24 countries. Major advances in the areas under study have been reviewed in plenary lectures and are developed in the main articles of this book. Over 160 high-quality posters were presented and are summarized in short articles. Data from outstanding posters, which were discussed after a short oral presentation, are found in extended articles. As a whole the book presents a collection of papers arranged in six sections and reflecting the present day state-of-the-art of research in the field of plant defense reactions.

Microbial Bioprospecting for Sustainable Development

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Publisher : Springer
ISBN 13 : 9811300534
Total Pages : 396 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Microbial Bioprospecting for Sustainable Development by : Joginder Singh

Download or read book Microbial Bioprospecting for Sustainable Development written by Joginder Singh and published by Springer. This book was released on 2018-09-18 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of the use of microorganisms and microbial metabolites as a future sustainable basis of agricultural, environmental and industrial developments. It provides a holistic approach to the latest advances in the utilization of various microorganism bioprospecting including their wide range of applications, traditional uses, modern practices, and designing strategies to harness their potential. In addition, it highlights advanced microbial bioremediation approaches, including genetic manipulation, metagenomics analysis and bacteriophage-based sensors for the detection of food-borne pathogens. Lastly, it elaborates on the latest advances regarding the role of microbes in the sustainable development of various industrial products.

Physiological Plant Pathology

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Publisher : Springer Science & Business Media
ISBN 13 : 364266279X
Total Pages : 909 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Physiological Plant Pathology by : R. Heitefuß

Download or read book Physiological Plant Pathology written by R. Heitefuß and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 909 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant pathology embraces all aspects of biological and scientific activity which are concerned with understanding the complex phenomena of diseases in plants. Physiological plant pathology represents those specialities within plant pathology which focus on the physiological and biochemical activities of pathogens and on the response of host plant tissues. Today there is an increasing recognition on the part of the scientific agri cultural community that only through a deeper and more fundamental under standing of all the interacting components of the agricultural biota can we expect to improve our capabilities of feeding an expanding world population. It is in this context that physiological plant pathology has assumed new significance within the broader field of plant pathology. No longer are studies on the biochemistry and physiology of pathogens and pathogenesis merely isolated academic exercises; rather, a substantial coherent body of knowledge is accumulating upon which our understanding of the process of disease developmen t and host resistance is being founded. It is from these foundations of knowledge that ultimately new insights into the control of plant diseases may be expected to grow. It seems appropriate, therefore, that at regular intervals those involved in the various subspecialities encompassing the broadest aspects of physiological plant pathology reassess the contributions within the particular specialities in the light of new knowledge and technologies for the purpose of articulating new and productive directions for the future.

The Plant Oxidases

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Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis The Plant Oxidases by : Ernest Dunbar Clark

Download or read book The Plant Oxidases written by Ernest Dunbar Clark and published by . This book was released on 1910 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Cytokinins

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Publisher : CRC Press
ISBN 13 : 1351088181
Total Pages : 613 pages
Book Rating : 4.3/5 (51 download)

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Book Synopsis Cytokinins by : David W. S. Mok

Download or read book Cytokinins written by David W. S. Mok and published by CRC Press. This book was released on 2019-07-23 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cytokinins are hormones involved in all aspects of plant growth and development and are essential for in vitro manipulation of plant cells and tissues. Much information has been gathered regarding the chemistry and biology of cytokinins, while recent studies have focused on the genetics and cytokinin-related genes. However, other than proceedings of symposia, no single volume on cytokinins has been written. This book is the first of its kind, homing in on the key subject areas of cytokinin-chemistry, biosynthesis, metabolism, activity, function, genetics, and analyses. These areas are comprehensively reviewed in individual chapters by experts currently active in the field. In addition, a personal history on the discovery of cytokinin is presented by Professor Folke Skoog. This volume summarizes previous findings and identifies future research directions.

Plant Respiration

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Publisher : Springer Science & Business Media
ISBN 13 : 1402035896
Total Pages : 265 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Plant Respiration by : Hans Lambers

Download or read book Plant Respiration written by Hans Lambers and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Respiration in plants, as in all living organisms, is essential to provide metabolic energy and carbon skeletons for growth and maintenance. As such, respiration is an essential component of a plant’s carbon budget. Depending on species and environmental conditions, it consumes 25-75% of all the carbohydrates produced in photosynthesis – even more at extremely slow growth rates. Respiration in plants can also proceed in a manner that produces neither metabolic energy nor carbon skeletons, but heat. This type of respiration involves the cyanide-resistant, alternative oxidase; it is unique to plants, and resides in the mitochondria. The activity of this alternative pathway can be measured based on a difference in fractionation of oxygen isotopes between the cytochrome and the alternative oxidase. Heat production is important in some flowers to attract pollinators; however, the alternative oxidase also plays a major role in leaves and roots of most plants. A common thread throughout this volume is to link respiration, including alternative oxidase activity, to plant functioning in different environments.

Copper Amine Oxidases

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Publisher : CRC Press
ISBN 13 : 1420076817
Total Pages : 356 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Copper Amine Oxidases by : Giovanni Floris

Download or read book Copper Amine Oxidases written by Giovanni Floris and published by CRC Press. This book was released on 2009-06-01 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the amount of research on copper amine oxidases has grown rapidly and substantially in the past decade, the field unfortunately suffers from lack of cohesion and significant confusion surrounds aspects as simple as confirmation of enzyme identities. This book describes the structure of the enzymes, the role of copper, and of the unusual co

Metal-Containing Enzymes

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Publisher : Academic Press
ISBN 13 : 0128007885
Total Pages : 174 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Metal-Containing Enzymes by :

Download or read book Metal-Containing Enzymes written by and published by Academic Press. This book was released on 2014-11-24 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published continuously since 1944, the Advances in Protein Chemistry and Structural Biology series is the essential resource for protein chemists. Each volume brings forth new information about protocols and analysis of proteins. Each thematically organized volume is guest edited by leading experts in a broad range of protein-related topics. - Describes advances in metal-containing enzymes - Chapters are written by authorities in their field - Targeted to a wide audience of researchers, specialists, and students - The information provided in the volume is well supported by a number of high quality illustrations, figures, and tables

Ascorbic Acid in Plant Growth, Development and Stress Tolerance

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Publisher : Springer
ISBN 13 : 3319740571
Total Pages : 514 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Ascorbic Acid in Plant Growth, Development and Stress Tolerance by : Mohammad Anwar Hossain

Download or read book Ascorbic Acid in Plant Growth, Development and Stress Tolerance written by Mohammad Anwar Hossain and published by Springer. This book was released on 2018-03-19 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ascorbic acid (AsA), vitamin C, is one of the most abundant water-soluble antioxidant in plants and animals. In plants AsA serves as a major redox buffer and regulates various physiological processes controlling growth, development, and stress tolerance. Recent studies on AsA homeostasis have broadened our understanding of these physiological events. At the mechanistic level, AsA has been shown to participate in numerous metabolic and cell signaling processes, and the dynamic relationship between AsA and reactive oxygen species (ROS) has been well documented. Being a major component of the ascorbate-glutathione (AsA-GSH) cycle, AsA helps to modulate oxidative stress in plants by controlling ROS detoxification alone and in co-operation with glutathione. In contrast to the single pathway responsible for AsA biosynthesis in animals, plants utilize multiple pathways to synthesize AsA, perhaps reflecting the importance of this molecule to plant health. Any fluctuations, increases or decreases, in cellular AsA levels can have profound effects on plant growth and development, as AsA is associated with the regulation of the cell cycle, redox signaling, enzyme function and defense gene expression. Although there has been significant progress made investigating the multiple roles AsA plays in stress tolerance, many aspects of AsA-mediated physiological responses require additional research if AsA metabolism is to be manipulated to enhance stress-tolerance. This book summarizes the roles of AsA that are directly or indirectly involved in the metabolic processes and physiological functions of plants. Key topics include AsA biosynthesis and metabolism, compartmentation and transport, AsA-mediated ROS detoxification, as well as AsA signaling functions in plant growth, development and responses to environmental stresses. The main objective of this volume is therefore to supply comprehensive and up-to-date information for students, scholars and scientists interested in or currently engaged in AsA research.

Alternative Respiratory Pathways in Higher Plants

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Publisher : John Wiley & Sons
ISBN 13 : 1118790464
Total Pages : 398 pages
Book Rating : 4.1/5 (187 download)

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Book Synopsis Alternative Respiratory Pathways in Higher Plants by : Kapuganti Jagadis Gupta

Download or read book Alternative Respiratory Pathways in Higher Plants written by Kapuganti Jagadis Gupta and published by John Wiley & Sons. This book was released on 2015-06-15 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid developments in molecular and systems biology techniques have allowed researchers to unravel many new mechanisms through which plant cells switch over to alternative respiratory pathways. This book is a unique compendium of how and why higher plants evolved alternative respiratory metabolism. It offers a comprehensive review of current research in the biochemistry, physiology, classification and regulation of plant alternative respiratory pathways, from alternative oxidase diversity to functional marker development. The resource provides a broad range of perspectives on the applications of plant respiratory physiology, and suggests brand new areas of research. Other key features: written by an international team of reputed plant physiologists, known for their pioneering contributions to the knowledge of regular and alternative respiratory metabolism in higher plants includes step-by-step protocols for key molecular and imaging techniques advises on regulatory options for managing crop yields, food quality and environment for crop improvement and enhanced food security covers special pathways which are of key relevance in agriculture, particularly in plant post-harvest commodities Primarily for plant physiologists and plant biologists, this authoritative compendium will also be of great value to postdoctoral researchers working on plant respiration, as well as to graduate and postgraduate students and university staff in Plant Science. It is a useful resource for corporate and private firms involved in developing functional markers for breeding programs and controlling respiration for the prevention of post-harvest losses in fruit, vegetables, cut flowers and tubers.

Plant Secondary Metabolites

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Publisher : John Wiley & Sons
ISBN 13 : 0470994134
Total Pages : 384 pages
Book Rating : 4.4/5 (79 download)

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Book Synopsis Plant Secondary Metabolites by : Alan Crozier

Download or read book Plant Secondary Metabolites written by Alan Crozier and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant secondary metabolites have been a fertile area of chemical investigation for many years, driving the development of both analytical chemistry and of new synthetic reactions and methodologies. The subject is multi-disciplinary with chemists, biochemists and plant scientists all contributing to our current understanding. In recent years there has been an upsurge in interest from other disciplines, related to the realisation that secondary metabolites are dietary components that may have a considerable impact on human health, and to the development of gene technology that permits modulation of the contents of desirable and undesirable components. Plant Secondary Metabolites: Occurrence, Structure and Role in the Human Diet addresses this wider interest by covering the main groups of natural products from a chemical and biosynthetic perspective with illustrations of how genetic engineering can be applied to manipulate levels of secondary metabolites of economic value as well as those of potential importance in diet and health. These descriptive chapters are augmented by chapters showing where these products are found in the diet, how they are metabolised and reviewing the evidence for their beneficial bioactivity.