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Denaturing gradient gel electrophoresis profiles of 16S rRNA-defined populations inhabiting a hot spring microbial mat community
DGGE of PCR-amplified 16S rRNA gene segments was used to profile microbial populations inhabiting different temperature regions in the microbial mat community of Octopus Spring, Yellowstone National Park, to suggest that adaptation to temperature has occurred among cyanobacteria which are phylogenetically very similar. Expand
A Natural View of Microbial Biodiversity within Hot Spring Cyanobacterial Mat Communities
This review summarizes a decade of research that finds that it may be possible to understand microbial biodiversity within hot spring cyanobacterial mats by using principles similar to those developed by evolutionary ecologists to understand biodiversity of larger species. Expand
Geographical isolation in hot spring cyanobacteria.
A lack of correspondence between biological patterning and the chemical character of springs sampled suggested that the geographical distribution of thermophilic cyanobacteria cannot be explained by the 20 potential niche-determining chemical parameters that were assayed, suggesting geographical isolation must in part be responsible for driving the observed evolutionary divergences. Expand
16S rRNA sequences reveal numerous uncultured microorganisms in a natural community
A culture-independent analysis of the composition of a well-studied hot spring microbial community, using a common but distinctive cellular component, 16S ri bosom al RNA, confirms speculations about the diversity of uncultured microorganisms it contains. Expand
Candidatus Chloracidobacterium thermophilum: An Aerobic Phototrophic Acidobacterium
“Candidatus Chloracidobacterium thermophilum” is a BChl-producing member of the poorly characterized phylum Acidobacteria, and a highly enriched culture of this bacterium grew photoheterotrophically, synthesized BChls a and c under oxic conditions, and had chlorosomes and type 1 reaction centers. Expand
Population level functional diversity in a microbial community revealed by comparative genomic and metagenomic analyses
Genomic information from these mat-specific isolates and metagenomic information can be coupled to detect naturally occurring populations that are associated with different functionalities, not always represented by isolates, but which may nevertheless be important for niche partitioning and the establishment of microbial community structure. Expand
Seasonal distributions of dominant 16S rRNA-defined populations in a hot spring microbial mat examined by denaturing gradient gel electrophoresis
Denaturing gradient gel electrophoresis analysis of PCR-amplified 16S rRNA gene segments was used to examine the distributions of bacterial populations within a hot spring microbial mat (OctopusExpand
Microbial Population Dynamics Associated with Crude-Oil Biodegradation in Diverse Soils
In several cases, soil type was shown to be an important determinant, defining specific microorganisms responding to hydrocarbon contamination, and similar Rhodococcus erythropolis-like populations were observed in four of the seven soils and were the most common hydrocarbon-degrading organisms identified via cultivation. Expand
Identifying the fundamental units of bacterial diversity: A paradigm shift to incorporate ecology into bacterial systematics
This work introduces a sequence-based approach (“ecotype simulation”) to model the evolutionary dynamics of bacterial populations and to identify ecotypes within a natural community, focusing here on two Bacillus clades surveyed from the “Evolution Canyons” of Israel. Expand
Archaeal and Bacterial Glycerol Dialkyl Glycerol Tetraether Lipids in Hot Springs of Yellowstone National Park
The cooccurrence of relatively abundant nonisoprenoid GDGTs thought to be derived from soil bacteria suggests a predominantly allochthonous source for crenarchaeol in these hot spring environments. Expand