Investigation of candidate division TM7, a recently recognized major lineage of the domain Bacteria with no known pure-culture representatives

Article Abstract:

A new candidate for the domain Bacteria, TM7, is examined via fluorescence in situ hybridization and transmission electron microscopy. Results indicate the candidate is present in various aquatic, clinical and terrestrial habitats, and that it may be resistant at its ribosome level to streptomycin.

Australia, South Africa, Statistical Data Included, Ribosomal RNA

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Liquid serial dilution is inferior to solid media for isolation of cultures representative of the phylum-level diversity of soil bacteria

Article Abstract:

The agents of the four well classified bacterial phyla were separated from the agricultural soil with the help of the liquid serial dilution culture. A study that was conducted indicates that the liquid serial dilution culture was inferior to the solid media culture for separating the agents of the various bacterial phyla from soil.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Separation Chemicals, Agarose & Other Separation Chems, Comparative analysis, Soil microbiology, Microbiology

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Genome-directed isolation of the key nitrogen fixer Leptospirillum ferrodiazotrophum sp. nov. from an acidophilic microbial community

Article Abstract:

An analysis of assembled random shotgun sequence data from a low-diversity, subsurface acid mine drainage (AMD) biofilm revealed a single nif operon. The single nif operon was found on a fragment belonging to a member of Leptospirillum group III a lineage in the Nitrospirae phylum with no cultivated representatives.

Genetic aspects, Gram-negative bacteria, Operons

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