Desulfotomaculum

From a related organism, Desulforomonas acetoxidans, a 2 X [4Fe-4S]2+,i+ ferredoxin was isolated (76). Other ferredoxins are present, but not yet fully characterized, in the following SRB D. vulgaris Hidenborough, D. salexigens, D. desulfuricans, Dsm. baculatum strain 9974, and Desulfotomaculum ((77, 78) and our unpublished results). 

FIG. 1 Freeze-etching image of a bacterial cell of (a) Desulfotomaculum nigrificans (bar, 100 nm). Atomic force micrographs of the S-layer proteins of (b) Bacillus sphaericus CCM 2177 and (c) Bacillus stearothermophilus PV72/p2 recrystallized in monolayers on silicon wafers. Bars, 50 nm. The insets in (b) and (c) show the corresponding computer-image reconstructions. 

Tasaki M, Y Kamagata, K Nakamura, E Mikami (1991) Isolation and characterization of a thermophilic benzoate-degrading, sulfate-reducing bacterium, Desulfotomaculum thermobenzoicum sp. nov. Arch Microbiol 155 348-352. 

Newman DK, EK Kennedy, JD Coates, D Ahmann, DJ Ellis, DR Lovley, EMM Morel (1997) Dissimilatory arsenate and sulfate reduction in Desulfotomaculum auripigmentum sp. nov. Arch Microbiol 168 ... 

Widdel F, N Pfennig (1981) Sporulation and further nutritional characteristics of Desulfotomaculum acetoxi-dans (emend). Arch Microbiol 112 119-122. 

Morasch B, B Schink, CC Tebbe, RU Meckenstock (2004) Degradation of o-xylene and m-xylene by a novel sulfate-reducer belonging to the genus Desulfotomaculum. Arch Microbiol 181 407-417. 

The direct treatment of the scrubbing liquid from a flue gas desulfurization step could be carried out by using the sulfur-reducing bacterium denoted as KT7 [290], This low-GC Gram-positive bacterium is related to the genus Desulfotomaculum, which is capable of reducing sulfite and sulfate to sulfide. Its optimum growth is observed at a temperature between 48°C and 70°C, at a pH of between 5 and 9 and at a conductivity of the liquid medium between 0 and 40 mS/cm. The treatment was claimed to be favored under anaerobic conditions. 

Arsenate 33 Desulfotomaculum auripigmentum Desulfovibrio strain Ben-RA V. atypica Micrococcus aerogene Newman et al. (1997b) Macy et al. (2000) Wolfolk andWhiteley (1962) Wolfolk andWhiteley (1962)... 

The recently isolated Desulfotomaculum strain Ben-RB is able to grow using lactate as a substrate and arsenate as the sole electron acceptor (Macy et al. 2000). It has been proposed that arsenate reductase is associated with the respiratory chain of this organism, because >98% of the arsenate reductase bound to the plasma membrane. 

Newman DK, Beveridge TJ, Morel EMM. 1997a. Precipitation of arsenic trisulfide by Desulfotomaculum aurigmentum. Appl Environ Microbiol 63 2022-8. 

Desulfotomaculum thermocisternum Desulfotomaculum thermobenzoicum — Desulfotomaculum geothermicum Desulfotomaculum nigrificans... 

McCready RGL (1975) Sulphur isotope fractionation by Desulfovibrio and Desulfotomaculum species. Geochim Cosmochim Acta 39 1395-1401 McCready RGL, Kaplan IR, Din GA (1974) Fractionation of sulfur isotopes by the yeast Saccha-romyces cerevisiae. Geochim Cosmochim Acta 38 1239-1253 McDermott F (2004) Palaeo-cUmate reconstruction from stable isotope variations in speleothems a review. Q Sci Rev 23 901-918... 

Bacterial anaerobes including Desulfovibrio, Desulfomonas, and Desulfotomaculum are known sulfate-reducing species. They can survive in fresh, brackish, and sea water and are present in most soils and sediments containing sulfate and sulfite compounds. Enzymes which promote the conversion of sulfates and sulfites to metal sulfides through chemical reduction are present in these bacteria. Iron sulfide, FeS, is a product of this process. 

Widdel, F. Pfennig, N. (1977). A new anaerobic, sporing, acetate-oxidizing sulfate-reducing bacterium, Desulfotomaculum (emend.) acetoxidans. Archives of Microbiology, 112, 119-22. 

When obligate anaerobic bacteria carry out dissimilatory sulfate reduction, they are referred to as sulfate reducers or sulfidogens. The traditional sulfate-reducing genera are Desulfovibrio and Desulfotomaculum. Sulfate reduction results in the production of hydrogen sulfide ... 

Desulfotomaculum species are gram-positive, rod shaped, spore-forming SO -reducing bacteria that as a group display wide phylogenetic diversity (Rabus et al., 2000). They are also quite... 

Klemps R., Cypionka H., Widdel F., and Pfennig N. (1985) Growth with hydrogen, and further physiological characteristics of Desulfotomaculum species. Arch. Microbiol. 143, 203 -208. 

Mitchell G. J., Jones J. G., and Cole J. A. (1986) Distribution and regulation of nitrate and nitrite reduction by Desulfovi-brio and Desulfotomaculum species. Arch. Microbiol. 144, 35-40. 

Newman D. K., Kennedy E., Coates J. D., Ahmann D., Ellis D. J., et al. (1997b) Dissimilatory arsenate and sulfate reduction in Desulfotomaculum auripidmentum sp. nov. Arch. Microbiol. 168, 380—388. 

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