Download or read book Microbial Water Stress Physiology written by A. D. Brown and published by . This book was released on 1990-04-27 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial Water Stress Physiology Principles and Perspectives A. D. Brown Department of Biology, University of Wollongong, Australia. The book is concerned with the physiological factors that enable microorganisms to tolerate chronic stress, that is to thrive at low levels of water potential, whether generated by high salinities, high concentrations of non-electrolytes or by low matric potential, and to survive acute stress by adapting to changes in water potential. The thermodynamic principles that underly these physiological responses are examined, as are representative types of natural habitat capable of causing water stress. A chapter is given to the extreme halophils, the Halobacteriaceae, with emphasis on the interactions of protein and lipid chemistry, dissolved salts and water structure. Other chronic stress responses are examined in a range of eu- and prokaryotic microorganisms with emphasis on biochemical as well as physiological requirements. Turgor/volume control is discussed theoretically and empirically in relation to the use of inorganic ions and organic metabolites for the purpose. Prevailing notions of regulating either turgor or volume are challenged. Turgor/volume control with metabolites is treated as a particular example of metabolic regulation and is examined with emphasis on effects of protein concentration. The protective action of compatible solutes is discussed and a prevailing view that these compounds function by stabilizing protein structure is challenged.
Download or read book Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria written by Frans J. de Bruijn and published by John Wiley & Sons. This book was released on 2016-07-13 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacteria in various habitats are subject to continuously changing environmental conditions, such as nutrient deprivation, heat and cold stress, UV radiation, oxidative stress, dessication, acid stress, nitrosative stress, cell envelope stress, heavy metal exposure, osmotic stress, and others. In order to survive, they have to respond to these conditions by adapting their physiology through sometimes drastic changes in gene expression. In addition they may adapt by changing their morphology, forming biofilms, fruiting bodies or spores, filaments, Viable But Not Culturable (VBNC) cells or moving away from stress compounds via chemotaxis. Changes in gene expression constitute the main component of the bacterial response to stress and environmental changes, and involve a myriad of different mechanisms, including (alternative) sigma factors, bi- or tri-component regulatory systems, small non-coding RNA’s, chaperones, CHRIS-Cas systems, DNA repair, toxin-antitoxin systems, the stringent response, efflux pumps, alarmones, and modulation of the cell envelope or membranes, to name a few. Many regulatory elements are conserved in different bacteria; however there are endless variations on the theme and novel elements of gene regulation in bacteria inhabiting particular environments are constantly being discovered. Especially in (pathogenic) bacteria colonizing the human body a plethora of bacterial responses to innate stresses such as pH, reactive nitrogen and oxygen species and antibiotic stress are being described. An attempt is made to not only cover model systems but give a broad overview of the stress-responsive regulatory systems in a variety of bacteria, including medically important bacteria, where elucidation of certain aspects of these systems could lead to treatment strategies of the pathogens. Many of the regulatory systems being uncovered are specific, but there is also considerable “cross-talk” between different circuits. Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria is a comprehensive two-volume work bringing together both review and original research articles on key topics in stress and environmental control of gene expression in bacteria. Volume One contains key overview chapters, as well as content on one/two/three component regulatory systems and stress responses, sigma factors and stress responses, small non-coding RNAs and stress responses, toxin-antitoxin systems and stress responses, stringent response to stress, responses to UV irradiation, SOS and double stranded systems repair systems and stress, adaptation to both oxidative and osmotic stress, and desiccation tolerance and drought stress. Volume Two covers heat shock responses, chaperonins and stress, cold shock responses, adaptation to acid stress, nitrosative stress, and envelope stress, as well as iron homeostasis, metal resistance, quorum sensing, chemotaxis and biofilm formation, and viable but not culturable (VBNC) cells. Covering the full breadth of current stress and environmental control of gene expression studies and expanding it towards future advances in the field, these two volumes are a one-stop reference for (non) medical molecular geneticists interested in gene regulation under stress.
Download or read book Water Activity in Foods written by Gustavo V. Barbosa-Cánovas and published by John Wiley & Sons. This book was released on 2020-05-12 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Water Activity in Foods furnishes those working within food manufacturing, quality control, and safety with a newly revised guide to water activity and its role in the preservation and processing of food items. With clear, instructional prose and illustrations, the book’s international team of contributors break down the essential principles of water activity and water–food interactions, delineating water’s crucial impact upon attributes such as flavor, appearance, texture, and shelf life. The updated and expanded second edition continues to offer an authoritative overview of the subject, while also broadening its scope to include six newly written chapters covering the latest developments in water activity research. Exploring topics ranging from deliquescence to crispness, these insightful new inclusions complement existing content that has been refreshed and reconfigured to support the food industry of today.
Download or read book Environmental Genomics written by C. Cristofre Martin and published by Springer Science & Business Media. This book was released on 2008-01-18 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is a manual for an environmental scientist who wishes to embrace genomics to answer environmental questions. The volume covers: gene expression profiling, whole genome and chromosome mutation detection, and methods to assay genome diversity and polymorphisms within a particular environment. This book provides a systematic framework for determining environmental impact and ensuring human health and the sustainability of natural populations.
Download or read book Physiology of Salt Stress in Plants written by Pratibha Singh and published by John Wiley & Sons. This book was released on 2021-09-30 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: PHYSIOLOGY OF SALT STRESS IN PLANTS Discover how soil salinity affects plants and other organisms and the techniques used to remedy the issue In Physiology of Salt Stress in Plants, an editorial team of internationally renowned researchers delivers an extensive exploration of the problem of soil salinity in modern agricultural practices. It also discusses the social and environmental issues caused by salt stress. The book covers the impact of salt on soil microorganisms, crops, and other plants, and presents that information alongside examinations of salt’s effects on other organisms, including aquatic fauna, terrestrial animals, and human beings. Physiology of Salt Stress in Plants describes the morphological, anatomical, physiological, and biochemical dimensions of increasing soil salinity. It also discusses potential remedies and encourages further thought and exploration of this issue. Readers are encouraged to consider less hazardous fertilizers and pesticides, to use safer doses, and to explore and work upon salt resistant varieties of plants. Readers will also benefit from the inclusion of: Thorough introductions to salt stress perception and toxicity levels and the effects of salt stress on the physiology of crop plants at a cellular level Explorations of the effects of salt stress on the biochemistry of crop plants and salt ion transporters in crop plants at a cellular level Practical discussions of salt ion and nutrient interactions in crop plants, including prospective signalling, and the effects of salt stress on the morphology, anatomy, and gene expression of crop plants An examination of salt stress on soil chemistry and the plant-atmosphere continuum Perfect for researchers, academics, and students working and studying in the fields of agriculture, botany, entomology, biotechnology, soil science, and plant physiology, Physiology of Salt Stress in Plants will also earn a place on the bookshelves of agronomists, crop scientists, and plant biochemists.
Download or read book HALOPHILIC BACTERIA written by Francisco Rodriguez-Valera and published by Springer. This book was released on 1988 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Responses to Drought Stress written by Ricardo Aroca and published by Springer Science & Business Media. This book was released on 2012-10-12 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the multiple strategies that plants have developed to cope with drought, one of the most severe environmental stresses. Experts in the field present 17 chapters, each of which focuses on a basic concept as well as the latest findings. The following major aspects are covered in the book: · Morphological and anatomical adaptations · Physiological responses · Biochemical and molecular responses · Ecophysiological responses · Responses to drought under field conditions The contributions will serve as an invaluable source of information for researchers and advanced students in the fields of plant sciences, agriculture, ecophysiology, biochemistry and molecular biology.
Download or read book Advances in Microbial Physiology written by and published by Academic Press. This book was released on 1995-10-12 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for the Serial"This series has consistently presented a well-balanced account if progress in microbial physiology...Invaluable for teaching purposes."- AMERICAN SCIENTISTAdvances in Microbial Physiology was first published in 1967, and under the pioneering editorship of Professor Tony Rose, with the collaboration at various times of John Wilkinson, Gareth Morris and Dave Tempest, the series has become immensely successful and influential. The editors have always striven to interpret microbial physiology in the broadest possible context and have never restricted the contents to "traditional" views of whole cell physiology.Robert Poole was appointed as the new editor following the untimely death of Tony Rose. Under Professor Poole's editorship, Advances in Microbial Physiology continues to publish topical and important reviews, and to interpret physiology as widely as in the past by including all material that contributes to the understanding of how microorganisms and their component parts work. This continues to be the real challenge of microbial physiology.
Download or read book Bacterial Biogeochemistry written by Tom Fenchel and published by Academic Press. This book was released on 2012-07-27 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial Biogeochemistry, Third Edition focuses on bacterial metabolism and its relevance to the environment, including the decomposition of soil, food chains, nitrogen fixation, assimilation and reduction of carbon nitrogen and sulfur, and microbial symbiosis. The scope of the new edition has broadened to provide a historical perspective, and covers in greater depth topics such as bioenergetic processes, characteristics of microbial communities, spatial heterogeneity, transport mechanisms, microbial biofilms, extreme environments and evolution of biogeochemical cycles. Provides up-to-date coverage with an enlarged scope, a new historical perspective, and coverage in greater depth of topics of special interest Covers interactions between microbial processes, atmospheric composition and the earth's greenhouse properties Completely rewritten to incorporate all the advances and discoveries of the last 20 years such as applications in the exploration for ore deposits and oil and in remediation of environmental pollution
Download or read book Drought Stress Tolerance in Plants Vol 1 written by Mohammad Anwar Hossain and published by Springer. This book was released on 2016-05-25 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abiotic stress adversely affects crop production worldwide, decreasing average yields for most of the crops to 50%. Among various abiotic stresses affecting agricultural production, drought stress is considered to be the main source of yield reduction around the globe. Due to an increasing world population, drought stress will lead to a serious food shortage by 2050. The situation may become worse due to predicated global climate change that may multiply the frequency and duration and severity of such abiotic stresses. Hence, there is an urgent need to improve our understanding on complex mechanisms of drought stress tolerance and to develop modern varieties that are more resilient to drought stress. Identification of the potential novel genes responsible for drought tolerance in crop plants will contribute to understanding the molecular mechanism of crop responses to drought stress. The discovery of novel genes, the analysis of their expression patterns in response to drought stress, and the determination of their potential functions in drought stress adaptation will provide the basis of effective engineering strategies to enhance crop drought stress tolerance. Although the in-depth water stress tolerance mechanisms is still unclear, it can be to some extent explained on the basis of ion homeostasis mediated by stress adaptation effectors, toxic radical scavenging, osmolyte biosynthesis, water transport, and long distance signaling response coordination. Importantly, complete elucidation of the physiological, biochemical, and molecular mechanisms for drought stress, perception, transduction, and tolerance is still a challenge to the plant biologists. The findings presented in volume 1 call attention to the physiological and biochemical modalities of drought stress that influence crop productivity, whereas volume 2 summarizes our current understanding on the molecular and genetic mechanisms of drought stress resistance in plants.
Download or read book Principles of Plant Microbe Interactions written by Ben Lugtenberg and published by Springer. This book was released on 2014-12-04 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of microbial plant protection products is growing and their importance will strongly increase due to political and public pressure. World population is growing and the amount of food needed by 2050 will be double of what is produced now whereas the area of agricultural land is decreasing. We must increase crop yield in a sustainable way. Chemical plant growth promoters must be replaced by microbiological products. Also here, the use of microbial products is growing and their importance will strongly increase. A growing area of agricultural land is salinated. Global warming will increase this process. Plants growth is inhibited by salt or even made impossible and farmers tend to disuse the most salinated lands. Microbes have been very successfully used to alleviate salt stress of plants. Chemical pollution of land can make plant growth difficult and crops grown are often polluted and not suitable for consumption. Microbes have been used to degrade these chemical pollutants.
Download or read book Horticultural Crops written by Hugues Kossi Baimey and published by BoD – Books on Demand. This book was released on 2020-02-05 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Horticultural crops are important for human nutrition. To guarantee successful cultivation for quality and quantity yield, proper identification of pests and diseases, as well as abiotic factors undermining their production, is essential. This ten-chapter textbook describes fungi, bacteria, insects, and nematodes as important issues in horticulture. It documents their epidemiology and management strategies such as genetics and botanical and biological control used for their management. This comprehensive resource is essential for students and researchers of plant genetics, pathology, entomology, and nematology.
Download or read book Plant Soil and Microbes written by Khalid Rehman Hakeem and published by Springer. This book was released on 2016-03-01 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interactions between the plant, soil and microbes are complex in nature. Events may be antagonistic, mutualistic or synergistic, depending upon the types of microorganisms and their association with the plant and soil in question. Multi-trophic tactics can therefore be employed to nourish plants in various habitats and growth conditions. Understanding the mechanisms of these interactions is thus highly desired in order to utilize the knowledge in an ecofriendly and sustainable way. This holistic approach to crop improvement may not only resolve the upcoming food security issues, but also make the environment greener by reducing the chemical inputs. Plant, soil and microbe, Volume 1: Implications in Crop Science, along with the forthcoming Volume 2: Mechanisms and Molecular Interactions, provide detailed accounts of the exquisite and delicate balance between the three critical components of agronomy. Specifically, these two titles focus on the basis of nutrient exchange between the microorganisms and the host plants, the mechanism of disease protection and the recent molecular details emerged from studying this multi-tropic interaction. Together they aim to provide a solid foundation for the students, teachers, and researchers interested in soil microbiology, plant pathology, ecology and agronomy.
Download or read book The Physiology of Fungal Nutrition written by D. H. Jennings and published by Cambridge University Press. This book was released on 1995-03-09 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of how nutrients enter a fungus and their fate once inside the cell. 2000 references.
Download or read book Halophilic Microorganisms and their Environments written by Aharon Oren and published by Springer Science & Business Media. This book was released on 2006-04-06 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This water" he told me, "runs out to the eastern region, and flows into the Arabah; and when it comes into the sea, into the sea of foul waters [i. e. , the Dead Sea], the water will become wholesome. Every living creature that swarms will be able to live wherever this stream goes; the fish will be very abundant once these waters have reached there. It will be wholesome, and everything will live wherever this stream goes. Fishermen shall stand beside it all the way from En-gedi to En-eglaim; it shall be a place for drying nets; and the fish will be of various kinds [and] most plentiful, like the fish of the Great Sea. " Ezekiel’s prophecy (Ezekiel 47: 8-10) for revival and purification of the Dead Sea waters This new book on "Halophilic Microorganisms and their Environments" is the fifth volume in the COLE series (Cellular Origin and Life in Extreme Habitats (see: http://www. wkap. nl/prod/s/COLE). In the previous books we covered aspects of enigmatic microorganisms, microbial diversity, astrobiology, and symbiosis, so this book on halophilic microbes adds a fitting link to the rest of series' books. Since ancient times hypersaline habitats have been considered extreme environments, and some were thought not to sustain life at all. Yet, every organism requires salt for its existence. Salty places have been compared to an environment of extinction (e. g. , the Dead Sea).
Download or read book Plant Bacteria Interactions written by Iqbal Ahmad and published by John Wiley & Sons. This book was released on 2008-09-08 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, an extremely experienced team of authors from five different continents provides a timely review of progress in the use and exploitation of soil bacteria to improve crop and plant growth. They present novel ideas on how to grow better, more successful crops, in an environmentally sound way, making this invaluable reading for those working in the pharmaceutical, biotechnological and agricultural industries.
Download or read book Bacterial Stress Responses written by Gisela Storz and published by American Society for Microbiology Press. This book was released on 2010-11-16 with total page 1167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gain new insight on utilizing bacterial stress responses to better combat bacterial infection with antibiotics and improve biotechnology. • Reviews the vast number of new findings that have greatly advanced the understanding of bacterial stress responses in the past 10 years. • Explores general regulatory principles, including the latest findings from genomics studies, including new research findings on both specific and general stress responses. • Details how stress responses affect the interactions between bacteria and host cells and covers bacterial stress responses in different niches and communities, with an emphasis on extreme environments.
