Genetics of Halophilic Microorganisms PDF Download

Author: Rafael Montalvo-Rodriguez
Publisher: Mdpi AG
ISBN: 9783039289554
Category : Science
Languages : en
Pages : 218

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Book Description
Halophilic microorganisms are found in all domains of life and thrive in hypersaline (high salt content) environments. These unusual microbes have been a subject of study for many years due to their interesting properties and physiology. Studies of the genetics of halophilic microorganisms (from gene expression and regulation to genomics) have provided understanding into the mechanisms of how life can exist at high salinity levels. Here, we highlight recent studies that advance the knowledge of biological function through examination of the genetics of halophilic microorganisms and their viruses.

Author: Aharon Oren
Publisher: Springer Science & Business Media
ISBN: 0306480530
Category : Science
Languages : en
Pages : 571

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Book Description
"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).

Author: Russell H. Vreeland
Publisher: Springer Science & Business Media
ISBN: 9400755392
Category : Medical
Languages : en
Pages : 241

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Book Description
This book is designed to be a long term career reference. The chapters present modern procedures. This is a how-to-book with a difference. These chapters: - reveal the background information about working with salt loving organisms, - are loaded with information about how experiments are conducted under high salt, - provide information about analyses that work under these conditions and those that may not, - present a wide range of details from laboratory designs to equipment used and even to simple anecdotal hints that can only come from experience. Microbiological training focuses largely on the growth, the handling and the study of the microbes associated with humans and animals. Yet the largest proportion of the Earth’s microbiota lives in saline environments such as the Oceans, saline deserts and terminal hypersaline environments. This need for salt can be intimidating for those interested in entering the field or for those interested in understanding how such research is accomplished.

Author: R. Thane Papke
Publisher: Caister Academic Press
ISBN: 9781912530182
Category : Medical
Languages : en
Pages : 218

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Book Description
Extreme halophilic environments, including salt lakes and springs, seawater evaporation facilities for the production of sea salt, and subterranean salt deposits derived from ancient oceans are distributed patchily all over the earth. The life that dominates them is microbial e.g., prokaryotes and the viruses that infect them. The best studied in these environments are the haloarchaea (family Halobacteriaceae), a diverse group of salt-loving organisms in the archaeal phylum Euryarchaeota. These remarkable organisms have an obligate requirement for salt concentrations between 10% and 35% NaCl for survival (sea water has 3.5% salt). Haloarchaea have evolved several biochemical and molecular strategies to counteract the deleterious effects of their salty environments including efficient ion pumps, UV absorbing pigments, proteins that can resistant the effects of osmotic stress and the denaturing effects of salts. The best studied extremely halophilic member of the Bacteria is Salinibacter, which is abundant in saltern crystallizer ponds worldwide. The application of modern genomic approaches to research on halophilic Archaea and Bacteria and their viruses in recent years has yielded fascinating insights into the adaptations and evolution of these unique organisms.This book highlights current genetics and genomics research to provide a timely overview. Chapters are written by expert authors from around the world and include topics such as: ecology and evolution of Haloquadratum walsbyi; microdiversity of Salinibacter ruber; horizontal gene transfer in halobacteria; comparative genomics of haloarchaeal viruses; genomics of the halophilic bacteria Natranaerobius thermophilus and Halobacillus halophilus; the haloarchaeal cell wall; cell cycle and polyploidy in haloarchaea; cell regulation by proteolytic systems and protein conjugation.This major new work represents a valuable source of information to all those scientists interested in halophilic microorganisms, extremophiles, microbial ecology and environmental microbiology.

Author: Antonio Ventosa
Publisher: Springer Science & Business Media
ISBN: 366207656X
Category : Science
Languages : en
Pages : 363

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Book Description
Various groups of microorganisms - bacteria, archaea, algae and even fungi - have adapted to a life in a hypersaline environment. Halophilic Microorganisms explores the many-fold aspects of life under these extreme conditions. Several contributions analyze the microbial communities in different hypersaline environments such as salterns, soda lakes, and the Dead Sea or salt sediments. Reviews of their biodiversity, phylogeny, and genetics are given as well as of the diverse adaptation strategies of salt-tolerant or salt-requiring microorganisms. Microorganisms that have adapted to moderate salt concentrations or to habitats with drastic fluctuations are also treated in addition to the extreme halophiles. Their physiological, biochemical and molecular mechanisms developed in response to salinity and high osmotic pressure as well as current and future biotechnological applications are presented.

Author: Russell H. Vreeland
Publisher: CRC Press
ISBN: 1000159728
Category : Science
Languages : en
Pages : 342

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Book Description
A book for anyone interested in halophilic bacteria The Biology of Halophilic Bacteria presents detailed information regarding methods for working with halophilic bacteria. Helpful hints for performing various tests and assays in high salts are given, and information about data presentation and analysis is provided as well. The book will be useful to molecular biologists, biochemists, ecologists, and others interested in halophilic bacteria.

Author: Francisco Rodriguez-Valera
Publisher: Springer Science & Business Media
ISBN: 1461537304
Category : Science
Languages : en
Pages : 384

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Book Description
During recent years the subject of extreme environments and extremophiles has become a central topic in modern Biology. The capability of some microorganisms to withstand, and often prefer, the harsh conditions found in such environments is helping to define the physicho-chemicallimits of life and in consequence its essential nature. Halophiles are one of the most representative types of extremophiles, requiring high concentrations of inorganic salts, mostly sodium chloride, to grow and survive. They inhabit hypersaline environments, the distribution and abundance of which dur ing geological eras are attested by the vast amounts of evaporite rocks present in the Earth crust and by their role in the generation of petroleum deposits. The corditions of high osmolarity and ionic strength that are concomitant with concentrated salt solutions challenge the stability of lipid bilayers and the structure of proteins forcing halophilic microbes to develop specialized molecules and physiological me;;hanisms to cope with this environmental stress. Even so, halophilism is a widespread trait in the microbial world. All the major groups of eucaryotic microbes, two groups of archaeobacteria and most phylogenetic branches of eubacteria have halophilic representatives. Therefore, the study of halophilic microorganisms is indeed a highly heterogeneous and extense topic. The present volume contains the contributions to the FEMS-NATO Advanced Research Workshop on "General and Applied Aspects of Halophilic Microorganisms" held at Alicante, Spain, September 17-22, 1989.

Author: R. Thane Papke
Publisher: Caister Academic Press Limited
ISBN: 9781908230423
Category : Science
Languages : en
Pages : 0

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Book Description
The application of modern genomic approaches to research on halophilic Archaea and Bacteria and their viruses in recent years has yielded fascinating insights into the adaptations and evolution of these unique organisms. This book highlights current genetics and genomics research to provide a timely overview.

Author: Francisco Rodriguez-Valera
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 162

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Author: Gottfried Unden
Publisher: John Wiley & Sons
ISBN: 3527337458
Category : Science
Languages : en
Pages : 236

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In light of the rapidity increasing incidence rate of bacterial and fungal infections with multi-resistant pathogens, the metabolic changes associated with host-pathogen interactions offer one of the most promising starting points for developing novel antibiotics. . Part one of this comprehensive guide describes the metabolic adaptation of pathogenic microbes in humans, while part two points to routes for the development of novel antibiotics. This is volume six of the book series on drug discovery in infectious diseases by Paul Selzer.