The genetic diversity and expression of the [NiFe] hydrogenase large-subunit gene of Desulfovibrio spp. in environmental samples were determined in order to show in parallel the existing and active members of Desulfovibrio populations. DNA and total RNA were extracted from different anaerobic bioreactor samples; RNA was transcribed into cDNA. Subsequently, PCR was performed to amplify a ca.-440...

The genetic basis for bacterial mercury methylation has been described recently. For insights into the physiology of mercury-methylating bacteria, we present genome sequences for Desulfococcus multivorans strain DSM 2059, Desulfovibrio alkalitolerans strain DSM 16529, and Desulfovibrio species strain X2.

Campbell, L. Leon (University of Illinois, Urbana), Mary A. Kasprzycki, and John R. Postgate. Desulfovibrio africanus sp. n., a new dissimilatory sulfate-reducing bacterium. J. Bacteriol. 92:1122-1127. 1966.-The strains Benghazi and Walvis Bay can be distinguished from 40 strains of Desulfovibrio and from D. gigas on the basis of morphological and immunological studies. Electron microscopy reve...

Extracts of Desulfotomaculum nigrificans, Desulfotomaculum orientis, and Desulfotomaculum ruminis exhibit low levels of inorganic pyrophosphatase but were found to have high levels of pyrophosphate:acetate phosphotransferase. Conversely, extracts of Desulfovibrio gigas, Desulfovibrio vulgaris, and Desulfovibrio desulfuricans Norway 4 were shown to have high levels of inorganic pyrophosphatase b...

B. VAN LIN and H. BOTHE, Ardi. Mikrobiol. 82, 155 [1972]. S . G . M A Y H E W a n d V . MASSEY, J . b i o l . C h e m i s t r y 2 4 4 , 8 0 3 [1966]. H . B O T H E , P . HEMMERICH, a n d H . S U N D , i n : F l a v i n s a n d Flavoproteins. III. Internat. Symposium, p. 211, H. KAMIN, ed., Baltimore; University Park Press 1971. L . E . M O R T E N S E N , R . C . V A L E N T I N E , a n d J . E...

Cell-free extracts of Desulfovibrio desulfuricans possess enzymes which catalyze the synthesis of serine from 3-phosphoglycerate via the intermediates phosphohydroxypyruvate and phosphoserine.

The characterization of a novel Mo-Fe protein (MorP) associated with a system that responds to Mo in DesulfoVibrio alaskensis is reported. Biochemical characterization shows that MorP is a periplasmic homomultimer of high molecular weight (260 ( 13 kDa) consisting of 16-18 monomers of 15321.1 ( 0.5 Da. The UV/visible absorption spectrum of the as-isolated protein shows absorption peaks around 2...

Crystals of rubredoxin oxygen oxidoreductase have been obtained and characterized. They belong to space group P2(1)2(1)2, with unit-cell dimensions a = 88.24 (15), b = 101.25 (7), c = 90.80 (3) A. The homodimer (86 kDa) in the asymmetric unit is related by a non-crystallographic twofold rotation axis parallel to the ab 'diagonal' direction, as shown by the self-rotation maximum in the section w...

Desulfovibrio BerOc1 is a sulfate-reducing bacterium isolated from the Berre lagoon (French Mediterranean coast). BerOc1 is able to methylate and demethylate mercury. The genome size is 4,081,579 bp assembled into five contigs. We identified the hgcA and hgcB genes involved in mercury methylation, but not those responsible for mercury demethylation.

Desulfovibrio hydrothermalis AM13T is a piezophilic, mesophilic, hydrogenotrophic sulfate-reducing bacterium collected from a deep-sea hydrothermal chimney on the East Pacific Rise (2,600 m depth, 13°N). We report the genome sequence of this bacterium, which includes a 3,702,934-bp chromosome and a circular plasmid of 5,328 bp.