Download or read book Starvation survival Patterns of Sixteen Freshly Isolated Open ocean Bacteria written by Penny S. Amy and published by . This book was released on 1983 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Starvation survi v al Studies on a Marine Vibrio Sp and Other Selected Marine Bacteria written by Penny Susan Amy and published by . This book was released on 1982 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: The starvation-survival patterns of 16 freshly isolated open ocean bacteria and in a psychrophilic Vibrio sp., Ant-300, were determined. These isolates displayed three survival patterns as determined by viable cell count. These were (a) a rapid increase followed by a decrease to a constant value (pattern of Ant-300 and 7 isolates), (b) a rapid decrease to a constant value (4 isolates), (c) a gradual increase to a constant value (5 isolates). Isolates changed shape with most becoming coccobacilli by 8-9 mo starvation. All isolates decreased in size, thereby increasing their surface to volume ratio. One isolate from each starvation survival pattern and Ant-300 were incubated under simulated open ocean conditions with [14C]glutamic acid and monitored for respiration and cellular in corporation of radiolabel. In each case a rapid linear respiration and cellular incorporation of labeled glutamic acid was seen. Physiological studies on Ant-300 were conducted both during 6 weeks starvation and recovery (the addition of nutrients) from starvation. During long-term starvation, macromolecules on a per cell basis rapidly decreased as cells fragmented (division without biomass increase) in the first 24-48 h. At one week starvation, the quantity of protein and DNA became constant whereas the level of RNA increased. Also after one week, a small peak in activity was seen in endogenous respiration, respiration potential (substrate added), and ATP level per viable cell; and glutathione was resynthesized after an initial decline when appropriate amino acids were present. After recovery from starvation Ant-300 displayed characteristics of both exponential and growing cells. Individual cell size and macromolecules increased exponentially with the addition of nutrients after lag periods which related to the prior length of starvation. Cells of Ant-300 displayed greater degrees of dormancy with increased starvation time. Protein fingerprint patterns formed by two dimensional gel electrophoresis showed changes in individual protein spots during long-term starvation. Cells grown under pressures comparable to those from which Ant-300 was isolated, showed similar protein patterns but lower concentrations when pressures higher than 100 atmospheres were employed. Cells recovering from starvation also showed much the same pattern as those under other conditions of growth, indicating that [35S]methionine is synthesized into all the proteins of a growing cell.
Download or read book Starvation in Bacteria written by S. Kjelleberg and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerted efforts to study starvation and survival of nondifferentiating vegeta tive heterotrophic bacteria have been made with various degrees of intensity, in different bacteria and contexts, over more than the last 30 years. As with bacterial growth in natural ecosystem conditions, these research efforts have been intermittent, with rather long periods of limited or no production in between. While several important and well-received reviews and proceedings on the topic of this monograph have been published during the last three to four decades, the last few years have seen a marked increase in reviews on starvation survival in non-spore-forming bacteria. This increase reflects a realization that the biology of bacteria in natural conditions is generally not that of logarithmic growth and that we have very limited information on the physiology of the energy-and nutrient-limited phases of the life cyde of the bacterial cello The growing interest in nongrowing bacteria also sterns from the more recent advances on the molecular basis of the starvation-induced nongrowing bacterial cello The identification of starvation-specific gene and protein re sponders in Escherichia coli as weIl as other bacterial species has provided molecular handles for our attempts to decipher the "differentiation-like" responses and programs that nondifferentiating bacteria exhibit on nutrient limited growth arrest. Severallaboratories have contributed greatly to the progress made in life after-log research.
Download or read book Microbiology of the Terrestrial Deep Subsurface written by Penny S. Amy and published by CRC Press. This book was released on 2018-01-10 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: Obtaining and analyzing samples is challenging in subsurface science. This first-of-its-kind reference book addresses accomplishments in this field-from drilling to sample work-up. A collaborative approach is taken, involving the efforts of microbiologists, geochemists, hydrologists, and drilling and mining experts to present a comprehensive view of subsurface research. The text provides practical information about obtaining, analyzing, and evaluating subsurface materials; the current status of subsurface microbial ecology; and describes several applications that will interest a variety of readers, including engineers, physical, and life scientists.
Download or read book NOAA Technical Report NMFS written by and published by . This book was released on 1984 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Starvation survival of Subsurface Bacteria written by Nancy Gene Magill and published by . This book was released on 1988 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Microbial Ecology written by J.G. Jones and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: There were many who joked when we took over Advances in Microbial Ecology at Volume 13; perhaps they should have reserved their expressions of superstition for Volume 14. As an example of British understatement, I think it would be fair to say that we have had a little bad luck. Never have I known a volume so bedeviled with misfortune, but we have been similarly fortunate in the patience exhibited by our authors, particularly those who were "first in line" with their chapters. It would be inappropriate to burden the reader with the catalogue of accidents and illnesses; suffice it to say that considerable experience has been gained in contingency planning. We feel particularly delighted that the final product is a balanced volume, maintaining the tradition of Advances in Microbial Ecology in providing something for everyone. The chapters range from the strategies of growth to the role of microbes in maintaining sustainable agriculture, the significance of a single biochemical process to the complexities of coping with a wide range of substrates.
Download or read book Nonculturable Microorganisms in the Environment written by Colwell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text on viable but non-culturable organisms provides information on topics including: morphological changes; the role of membranes; genetics and genetic regulation; molecular methods for detection; as well as survival dominancy and related phenomena. The main purpose of the text is to elucidate the phenomenon and to distinguish it from other seemingly related but different phenomena such as spore formation, dormancy, starvation, and injury. It covers a cross section of morphology, metabolism, genetics, ecology and epidemiology.
Download or read book Omics Techniques in Deciphering Environmental Industrial and Therapeutic Applications of Microbes written by Helianthous Verma and published by Frontiers Media SA. This book was released on 2023-12-19 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual of Environmental Microbiology written by Christon J. Hurst and published by American Society for Microbiology Press. This book was released on 2007-05-14 with total page 3023 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most definitive manual of microbes in air, water, and soil and their impact on human health and welfare. • Incorporates a summary of the latest methodology used to study the activity and fate of microorganisms in various environments. • Synthesizes the latest information on the assessment of microbial presence and microbial activity in natural and artificial environments. • Features a section on biotransformation and biodegradation. • Serves as an indispensable reference for environmental microbiologists, microbial ecologists, and environmental engineers, as well as those interested in human diseases, water and wastewater treatment, and biotechnology.
Download or read book Novel Food and Feed Safety SET 1 Safety Assessment of Transgenic Organisms OECD Consensus Documents Volumes 1 and 2 written by OECD and published by OECD Publishing. This book was released on 2008-08-08 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt: These OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries.
Download or read book Biofouling and Biocorrosion in Industrial Water Systems written by Hans-Curt Flemming and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial growth and contamination ("Biofouling") in water systems represents a significant threat to the quality of waters produced for the microelectronic, pharmaceutical, petroleum, paper, food and other manufacturing industries. Biofouling can lead to biologically induced corrosion ("Biocorrosion"), which can cause severe damage to the equipment. Both biofouling and biocorrosion are frequently not recognized in time, underestimated, or linked with the wrong causes. The book represents a new approach by introducing biofilm properties and dynamics as basic principles of biofouling and biocorrosion, thus providing a better understanding and the means of fighting the undesired effects of biofilms. The most important features are: Case histories of biofouling in water treatment.- Detection and monitoring of biofouling.- Reverse osmosis membrane biofouling.- Biocide efficacy and biofouling control.- Plant design considerations for preventing biofouling.- Case histories of biocorrosion.- Detection, monitoring, control and prevention of biocorrosion.- Fundamentals of biofouling and biocorrosion mechanisms.
Download or read book Bioremediation written by J.J. Valdes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the field of biosensors the previous focus has been almost entirely on medical diagnostics. Here it is discussed in relation to bioremediation. The application of new biosensing techniques to environmental monitoring promises to be a more economical approach to monitoring both soil consortia and levels of pollutants. Significantly, functional biosensors can determine such parameters as`How clean is clean?' This new edition is targeted specifically at graduate students and environmental professionals.
Download or read book Cholera written by Dhiman Barua and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on cholera has contributed both to knowledge of the epidemic in particular, and to a broader understanding of the fundamental ways in which cells communicate with each other. This volume presents current knowledge in historical perspective to enable the practitioner to treat cholera in a more effective manner, and to provide a comprehensive review for the researcher.
Download or read book Harmonisation of Regulatory Oversight in Biotechnology Safety Assessment of Transgenic Organisms Volume 2 OECD Consensus Documents written by OECD and published by OECD Publishing. This book was released on 2006-07-24 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: These OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries.
Download or read book Recent Advances in Environmental Science written by K. G. Hiremath and published by Discovery Publishing House. This book was released on 2003 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains articles covering a wide range of subjects of environmental science. The terrestrial section has articles on air pollution, solid waste ground water regime, western ghats, eastern ghats, mining, medicinal, plants, ethnobotany, role of pesticides, agriculture, microbial sensors, wetlands and ornithological studies. The marine environmental aspect such as mangroves, application of remote sensing, harmful algal blooms, bio-remediation, sustainable management of molluscan resources, benthic fauna, deep seabed mining and bio-fouling have been dealt in the marine environment section.
Download or read book Applied and Environmental Microbiology written by and published by . This book was released on 1997 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
