Quantitative Ecology of Psychrophilic Microorganisms
نویسندگان
چکیده
منابع مشابه
Diversity and ecology of psychrophilic microorganisms.
Cold environments represent the majority of the biosphere on Earth and have been successfully colonized by psychrophilic microorganisms that are able to thrive at low temperatures and to survive and even maintain metabolic activity at subzero temperatures. These microorganisms play key ecological roles in their habitats and include a wide diversity of representatives of all three domains (Bacte...
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The ability of psychrophiles to survive and proliferate at low temperatures implies that they have overcome key barriers inherent to permanently cold environments. These challenges include: reduced enzyme activity; decreased membrane fluidity; altered transport of nutrients and waste products; decreased rates of transcription, translation and cell division; protein cold-denaturation; inappropri...
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The objective of this study was to evaluate the efficiency of a low temperature anaerobic treatment to reduce viable populations of indicator microorganisms (total coliforms, Escherichia coli) and the presence of selected pathogens (Salmonella, Yersinia enterocolitica, Cryptosporidium and Giardia) in swine slurries from different sources. Experiments were carried out in 40 l Sequencing Batch Re...
متن کاملPhysiological Ecology of Microorganisms in Subglacial Lake Whillans
Subglacial microbial habitats are widespread in glaciated regions of our planet. Some of these environments have been isolated from the atmosphere and from sunlight for many thousands of years. Consequently, ecosystem processes must rely on energy gained from the oxidation of inorganic substrates or detrital organic matter. Subglacial Lake Whillans (SLW) is one of more than 400 subglacial lakes...
متن کاملA Course in Quantitative Ecology
Cox's method depends on tallying observed distances within f ixed intervals away from the transect line. Thus all of the observations within a dis tance,∆ , on either side of the line are added up and used to estimate the t r u e proportion of all observations, denoted p(0,∆ ), that fall in that interval. H e n c e if there are k1 observations within the distance ∆ , we estimate p(0,∆ ) = k 1 /...
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ژورنال
عنوان ژورنال: Applied Microbiology
سال: 1966
ISSN: 0003-6919
DOI: 10.1128/aem.14.1.74-78.1966