Tellurite resistance and reduction by obligately aerobic photosynthetic bacteria

Article Abstract:

The obligately aerobic photosynthetic bacteria of the genera Erythromicrobium, Erythrobacter and Roseococcus show a constitutive high-level resistance (HLR) to tellurite compounds and metallic tellurium crystals. R. thiosulfatophilus and Erythromicrobium ezovicum grown on carbon sources show HLR without any tellurium reduction. This shows that tellurite reduction is unnecessary for tellurite resistance. The growth of the bacteria with tellurite leads to black coloration due to tellurium reduction and an increase in intracellular accumulation of tellurium.

Bacteria, Aerobic, Aerobic bacteria, Bacteria, Photosynthetic, Photosynthetic bacteria

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Anaerobic respiration on tellurate and other metalloids in bacteria from hydrothermal vent fields in the eastern Pacific Ocean

Article Abstract:

The discovery of anaerobic respiration on tellurate by bacteria isolated from the eastern Pacific Ocean hydrothermal vent worms is reported. Enumeration of the anaerobic metalloid-resistant microbial community associated with hydrothermal vent animals indicates resistance of a greater proportion of the bacterial community associated with certain vent fauna and reduction of metalloids anaerobically than aerobically, suggesting that anaerobic metalloid respiration could be an important process in bacteria that are symbiotic with vent fauna.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Pacific Ocean, Tellurium, Hydrothermal vents, Anaerobic respiration

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Diversity and metabolism of marine bacteria cultivated on dissolved DNA

Article Abstract:

Study report is presented on the assessment of the diversity of dDNA-consuming bacteria in marine ecosystems. It is found that the list of dDNA-consuming microbes growth the development and application of cultivation independent approaches.

Microbial metabolism, Marine ecosystems

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