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Microbial Diversity in Archived Soils
Science, 2004A topic not covered in the recent special Section on Soils: The Final Frontier (11 June, pp. 1613–1637) is the possibility of using modern DNA-based molecular techniques to study microbial diversity in archived soil samples. Like other soil research institutes in countries such as the United Kingdom, the United States, and Switzerland, Alterra, as heir
J, Dolfing +5 more
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2014
Plasmids are small circular extra-chromosomal DNA molecules, which are capable of replicating independently in the genome. In order to understand the molecular epidemiology of the resistant plasmids, its analysis has become a major issue for their role in spreading of antibiotic and metal resistance genes.
Surajit Das, Hirak Ranjan Dash
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Plasmids are small circular extra-chromosomal DNA molecules, which are capable of replicating independently in the genome. In order to understand the molecular epidemiology of the resistant plasmids, its analysis has become a major issue for their role in spreading of antibiotic and metal resistance genes.
Surajit Das, Hirak Ranjan Dash
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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 Minnesota peatlands
Microbial Ecology, 1983Microbial diversity, numbers, and metabolic activities in Minnesota peatlands were investigated using a variety of microbial enrichment and enumeration procedures together with radioisotopic measurements of microbial degradative processes. Minnesota peatlands were shown to contain large microbial populations of wide metabolic diversity.
R T, Williams, R L, Crawford
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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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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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The value of microbial diversity
Current Opinion in Microbiology, 1998In the past few years, due to the use of molecular methods, our knowledge of microbial diversity has increased dramatically, not only from a phylogenetic and taxonomic perspective but also from an ecological basis. We now know that microorganisms exist in every conceivable place on Earth, even in extreme environments.
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Microbial diversity – insights from population genetics
Environmental Microbiology, 2007Summary Although many environmental microbial populations are large and genetically diverse, both the level of diversity and the extent to which it is ecologically relevant remain enigmatic. Because the effective (or long‐term) population size, N e , is one of the parameters
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