Growth of magnetotactic sulfate-reducing bacteria in oxygen concentration gradient medium

Versatile medium for the enumeration of sulfate-reducing bacteria.

A lactate-yeast extract-sulfate medium, making use of both thioglycolate and ascorbate to poise the E(n) gave valid colony counts of sulfate-reducing bacteria with both pure cultures and natural samples.

A cultured greigite-producing magnetotactic bacterium in a novel group of sulfate-reducing bacteria.

Magnetotactic bacteria contain magnetosomes--intracellular, membrane-bounded, magnetic nanocrystals of magnetite (Fe(3)O(4)) or greigite (Fe(3)S(4))--that cause the bacteria to swim along geomagnetic field lines. We isolated a greigite-producing magnetotactic bacterium from a brackish spring in Death Valley National Park, California, USA, strain BW-1, that is able to biomineralize greigite and ...

Metabolic Flexibility of Sulfate-Reducing Bacteria

Dissimilatory sulfate-reducing prokaryotes (SRB) are a very diverse group of anaerobic bacteria that are omnipresent in nature and play an imperative role in the global cycling of carbon and sulfur. In anoxic marine sediments sulfate reduction accounts for up to 50% of the entire organic mineralization in coastal and shelf ecosystems where sulfate diffuses several meters deep into the sediment....

Sulfurous Analysis of Bioelectricity Generation from Sulfate-reducing Bacteria (SRB) in a Microbial Fuel Cell

The current importance of energy emphasizes the use of renewable resources (such as wastewater) for electricity generation by microbial fuel cell (MFC). In the present study, the native sulfate-reducing bacterial strain (R.gh 3) was employed simultaneously for sulfurous component removal and bioelectricity generation. In order to enhance the electrical conductivity and provision of a compatible...

Magnetotactic bacteria and magnetosomes.