| macrorestriction analysis of desulfurella acetivorans and desulfurella multipotens. | the genomes of the phylogenetically and physiologically unique bacteria desulfurella acetivorans dsm 5264t and d. multipotens dsm 8415t were characterized and compared by pulsed field gel electrophoresis (pfge). macrorestriction patterns made of large pfge separated dna fragments were generated by digesting the genomic dnas of both strains with the rare cutting restriction endonucleases apai, asci, eagi, rsrii, sacii, sali as well as with the intron encoded endonuclease i-ceui. the sum of calcul ... | 1998 | 9485604 |
| desulfurella kamchatkensis sp. nov. and desulfurella propionica sp. nov., new sulfur-respiring thermophilic bacteria from kamchatka thermal environments. | two strains of moderately thermophilic bacteria, which reduce elemental sulfur to hydrogen sulfide, were isolated from volcanic sources in kamchatka. strain k-119t was obtained from a thermophilic microbial community associated with thermothrix thiopara, and strain u-8t was isolated from a cyanobacterial mat inhabiting a sulfide-rich hot spring. cells of both strains are short gram-negative rods, motile with one polar flagellum (strain k-119t) or non-motile (strain u-8t). both strains are obliga ... | 1998 | 9731287 |
| hippea maritima gen. nov., sp. nov., a new genus of thermophilic, sulfur-reducing bacterium from submarine hot vents. | three strains of moderately thermophilic, sulfur-reducing bacteria were isolated from shallow-water hot vents of the bay of plenty (new zealand) and matupi harbour (papua new guinea). cells of all isolates were short, gram-negative, motile rods with one polar flagellum. all strains were obligate anaerobes and grew optimally at ph 5.8-6.2, 52-54 degrees c and 2.5-3% (w/v) nacl. growth substrates were molecular hydrogen, acetate and saturated fatty acids; one of the strains, isolated from matupi h ... | 1999 | 10425760 |
| microbiology of acidic, geothermal springs of montserrat: environmental rdna analysis. | dna was extracted from water and sediment samples taken from acidic, geothermal pools on the caribbean island of montserrat. 16s rrna genes were amplified by pcr, cloned, sequenced, and examined to indicate some of the organisms that might be significant components of the in situ microbiota. a clone bank representing the lowest temperature pool that was sampled (33 degrees c) was dominated by genes corresponding to two types of acidophiles: acidiphilium-like mesophilic heterotrophs and thermotol ... | 2000 | 11057917 |
| investigation and optimization of a passively operated compost-based system for remediation of acidic, highly iron- and sulfate-rich industrial waste water. | a passively operated multi-stage bioremediation system utilizing composted agricultural waste products and an artificial wetland system was found to be effective for purification of acidic, iron- and sulfate-rich waste water derived from titanium mineral processing. the main microbial players involved in the remediation system processes and the dynamics were investigated; mineral processing waste water-filled sludge dams possessed stable microbial communities that included acidithiobacillus, des ... | 2009 | 19297003 |
| stable carbon isotope fractionation by acetotrophic sulfur-reducing bacteria. | acetate is the most important intermediate in anaerobic degradation of organic matter. the carbon isotope effects associated with the oxidation of acetate (epsilon(ac)) were examined for four acetotrophic sulfur reducers, desulfuromonas acetoxidans, desulfuromonas thiophila, desulfurella acetivorans, and hippea maritima. during the consumption of acetate and sulfur, acetate was enriched in (13)c by 11.5 and 11.2 per thousand in desulfuromonas acetoxidans and desulfuromonas thiophila, respectivel ... | 2010 | 20002180 |
| microbial diversity in anaerobic sediments at rio tinto, a naturally acidic environment with a high heavy metal content. | the tinto river is an extreme environment located at the core of the iberian pyritic belt (ipb). it is an unusual ecosystem due to its size (100 km long), constant acidic ph (mean ph, 2.3), and high concentration of heavy metals, iron, and sulfate in its waters, characteristics that make the tinto river basin comparable to acidic mine drainage (amd) systems. in this paper we present an extensive survey of the tinto river sediment microbiota using two culture-independent approaches: denaturing gr ... | 2011 | 21724883 |
| thermophilic anaerobic oxidation of methane by marine microbial consortia. | the anaerobic oxidation of methane (aom) with sulfate controls the emission of the greenhouse gas methane from the ocean floor. aom is performed by microbial consortia of archaea (anme) associated with partners related to sulfate-reducing bacteria. in vitro enrichments of aom were so far only successful at temperatures ¯ï¦25ôçë-¦c; however, energy gain for growth by aom with sulfate is in principle also possible at higher temperatures. sequences of 16s rrna genes and core lipids characteristic f ... | 2011 | 21697963 |
| complete genome sequence of the thermophilic sulfur-reducer hippea maritima type strain (mh(2)). | hippea maritima (miroshnichenko et al. 1999) is the type species of the genus hippea, which belongs to the family desulfurellaceae within the class deltaproteobacteria. the anaerobic, moderately thermophilic marine sulfur-reducer was first isolated from shallow-water hot vents in matipur harbor, papua new guinea. h. maritima was of interest for genome sequencing because of its isolated phylogenetic location, as a distant next neighbor of the genus desulfurella. strain mh(2) (t) is the first type ... | 2011 | 21886857 |