Role for outer membrane cytochromes OmcA and OmcB of Shewanella putrefaciens MR-1 in reduction of manganese dioxide

Article Abstract:

Research on anaerobic respiration indicates that the reduction of insoluble manganese(IV) in the gram-negative bacteria Shewanella putrefaciens MR-1 is reliant on the outer membrane cytochromes OmcA and OmcB. These cytochromes, however, are not required for the reduction of other electron acceptors such as iron(III).

United States, Statistical Data Included, Physiological aspects, Gram-negative bacteria, Bacterial genetics, Anaerobiosis, Cytochromes

---

Vanadium(V) reduction by Shewanella oneidensis MR-1 requires menaquinone and cytochromes from the cytoplasmic and outer membranes

Article Abstract:

The metal-reducing bacterium Shewanella oneidensis MR-1 displays remarkable respiratory plasticity, which is reflected in the extensive number of electron transport components encoded in its genome. A variety of mutants of MR-1 are used to elucidate cell components required for V(V) reduction.

Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Uranium-radium-vanadium ores, Vanadium, Genetic research, Yersinia enterocolitica

---

Shewanella oneidensis MR-1 restores menaquinone synthesis to a menaquinone-negative mutant

Article Abstract:

The mechanisms underlying the use of insoluble electron acceptors by metal-reducing bacteria, like Shewanella oneidensis MR-1 are analyzed. The quinone analysis showed that the released substance restores menaquinone (MK) synthesis in MK-negative mutant (CMA-1).

Gene mutations, Gene mutation, Vitamin K, Microbiological research

Similar abstracts:

• Abstracts: Occurrence of Shewanella algae in Danish coastal water and effects of water temperature and culture conditions on its survival
• Abstracts: Golgi membranes are absorbed into and reemerge from the ER during mitosis. The debate about transport in the Golgi - two sides of the same coin?
• Abstracts: A nonproteolytic function of the proteasome is required for the dissociation of Cdc2 and cyclin B at the end of M phase
• Abstracts: PML is induced by oncogenic ras and promotes premature senescence. Dissecting eIF4E action in tumorigenesis
• Abstracts: Characerization of the expression and activity of the periplasmic nitrate reductase of Paracoccus Pantotrophus in chemostat cultures

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.