Results 281 to 290 of about 361,751 (317)
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The Ecology and Genetics of Microbial Diversity
Annual Review of Microbiology, 2004▪ Abstract Natural communities of microbes are often diverse, a fact that is difficult to reconcile with the action of natural selection in simple, uniform environments. We suggest that this apparent paradox may be resolved by considering the origin and fate of diversity in an explicitly ecological context. Here, we review insights into the ecological
Rees, Kassen, Paul B, Rainey
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Microbial genomes: dealing with diversity
Current Opinion in Microbiology, 2001We have now complete genome sequences of several pairs of closely related prokaryotes (conspecific strains or congeneric species). Surprisingly, even strains of the same species can differ by as much as 20% in gene content. Conceptual and methodological approaches for dealing with such diversity are now being developed, and should transform microbial ...
Y, Boucher, C L, Nesbø, W F, Doolittle
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Microbial diversity of soda lakes
Extremophiles, 1998Soda lakes are highly alkaline extreme environments that form in closed drainage basins exposed to high evaporation rates. Because of the scarcity of Mg2+ and Ca2+ in the water chemistry, the lakes become enriched in CO3(2-) and Cl-, with pHs in the range 8 to > 12. Although there is a clear difference in prokaryotic communities between the hypersaline
B E, Jones +3 more
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Microbial diversity of cellulose hydrolysis
Current Opinion in Microbiology, 2011Enzymatic hydrolysis of cellulose by microorganisms is a key step in the global carbon cycle. Despite its abundance only a small percentage of microorganisms can degrade cellulose, probably because it is present in recalcitrant cell walls. There are at least five distinct mechanisms used by different microorganisms to degrade cellulose all of which ...
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An array of diverse microbial genomes
Trends in Biotechnology, 2004Methods for comparing gene frequencies across large, epidemiologically defined bacterial collections are limited. A novel microarray technology has been developed called 'library on a slide'. In this technology, hundreds of entire microbial genomes are arrayed, rather than sequences of a single genome or sets of genes.
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2014
Abstract ‘Microbial diversity’ considers the vast array of microorganisms—the smallest forms of life—which exist everywhere. The three primary groups of microorganisms are bacteria, archaea, and eukaryotes. Bacteria and archaea are prokaryotes with their genetic material held in a single chromosome.
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Abstract ‘Microbial diversity’ considers the vast array of microorganisms—the smallest forms of life—which exist everywhere. The three primary groups of microorganisms are bacteria, archaea, and eukaryotes. Bacteria and archaea are prokaryotes with their genetic material held in a single chromosome.
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Microbial Diversity of Impact-Generated Habitats
Astrobiology, 2016Impact-generated lithologies have recently been identified as viable and important microbial habitats, especially within cold and arid regions such as the polar deserts on Earth. These unique habitats provide protection from environmental stressors, such as freeze-thaw events, desiccation, and UV radiation, and act to trap aerially deposited detritus ...
Pontefract, Alexandra +6 more
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The microbial diversity of inland waters
Current Opinion in Biotechnology, 2006The conservation and sustainable use of freshwater resources is of global importance. Microorganisms are not only the most abundant organisms in natural freshwater systems, but are also key players in ecological processes controlling water quality. Detailed knowledge of the diversity and function of microorganisms dwelling in freshwater habitats is an ...
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Molecular community analysis of microbial diversity
Current Opinion in Biotechnology, 2002New technologies that avoid the need for either gene amplification (e.g. microarrays) or nucleic acid extraction (e.g. in situ PCR) have recently been implemented in microbial ecology. Together with new approaches for culturing microorganisms and an increased understanding of the biases of molecular methods, these techniques form the most exciting ...
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