Plasmid chromate resistance and chromate reduction.
作者： Carlos Cervantes , Simon Silver
DOI: 10.1016/0147-619X(92)90007-W
关键词: Anaerobic respiration 、 Chromate transport 、 Microbiology 、 Biology 、 Plasmid 、 Bacteria 、 Hexavalent chromium 、 Pseudomonas 、 Pseudomonas aeruginosa 、 Chromate conversion coating
摘要: Compounds of hexavalent chromium (chromates and dichromates) are highly toxic. Plasmid genetic determinants for chromate resistance have been described in several bacterial genera, most notably Pseudomonas. Resistance to is associated with decreased transport by the resistant cells. The genes a hydrophobic polypeptide, ChrA, were identified plasmids Pseudomonas aeruginosa Alcaligenes eutrophus. ChrA postulated be responsible outward membrane translocation anions. Widespread reduction less toxic trivalent chromic ions also known. Chromate not, however, found on or transposons. In different bacteria, either an aerobic anaerobic process (but not both) carried out soluble proteins cell membranes. may mechanism chromate, but this has unequivocally shown.
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