Uncultivated cyanobacteria, chloroflexus-like inhabitants and spirochete-like inhabitants of a hot spring microbial mat

Article Abstract:

The derivation from the Octopus Spring cyanobacterial mat of 16S rRNA sequences as cDNA is discussed. The fragments were retieved from a cDNA library. Several previously uncharacterized communitymembers were recognized by the sequence information. It was found that size selection can cause a bias against the recovery of certain sequences as revealed in the analysis of shorter rcDNA products.

Research, Analysis, Microbiology, Cultures (Biology), Amino acid sequence, Amino acid sequencing

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Compound-specific isotopic fractionation patterns suggest different carbon metabolisms among Chloroflexus-like bacteria in hot-spring microbial mats

Article Abstract:

The differences in the carbon isotopic fractionation between inorganic carbon and lipid biomakers indicate photoautotrophic process in chloroflexus-like bacteria in sulfidic and nonsulfidic hotsprings. Research further shows that photoheterotrophy also exists in the hot-spring microbial mats when cyanobacteria cross-feed chloroflexus-like organisms.

United States, Netherlands, Physiological aspects, Microbial metabolism, Microbiological synthesis, Microbial mats, Statistics, Statistics (Data), Isotope separation

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