Desulfovibrio

作者：Jan Kuever, Fred A. Rainey, Friedrich Widdel · 发表于：Bergey's Manual of Systematics of Archaea and Bacteria · 年份：2015 · DOI：10.1002/9781118960608.gbm01035 · 被引用次数：10 · 研究领域：Mine drainage and remediation techniques、Calcium Carbonate Crystallization and Inhibition、Chemical and Physical Properties in Aqueous Solutions

De.sul.fo.vi' bri.o . L. pref. de from; L. n. sulfur sulfur; L. v. vibrio to vibrate; M.L. masc. n. Vibrio that which vibrates, a generic name; M.L. n. Desulfovibrio a vibrio that reduces sulfur compounds. Desulfobacterota / Desulfovibrionia / Desulfovibrionales / Desulfovibrionaceae / Desulfovibrio Curved or occasionally straight rods , sometimes sigmoid or spirilloid, 0.5–1.5 × 2.5–10.0 μm . The morphology is influenced by age and environment; descriptions refer to freshly grown cultures in anoxic sulfate media. Spore formation is absent . Gram negative. Motile by means of a single or lophotrichous polar flagella. Obligately anaerobic growth in pure cultures. Possess mainly a respiratory type of metabolism with sulfate or other sulfur compounds as the terminal electron acceptors, being reduced to H 2 S ; however, the metabolism is sometimes fermentative. Media containing a reducing agent are required for growth. In a few cases, a vitamin requirement has been reported. Some species and subspecies are moderately halophilic. Optimal growth temperature, usually 25–35°C; upper limit normally 44°C. No thermophilic species have been reported. Thermophilic Desulfovibrio species formerly described have been reclassified and currently belong to the genera Thermodesulfovibrio and Thermodesulfobacterium . Chemoorganotrophic. Most species oxidize organic compounds such as lactate incompletely to acetate, which cannot be oxidized further . Carbohydrates are utilized by few species. One s...