| nitratireductor aquibiodomus gen. nov., sp. nov., a novel alpha-proteobacterium from the marine denitrification system of the montreal biodome (canada). | the montreal biodome operates a methanol-fed denitrification system that treats the water in its three million litre marine mesocosm. an unknown bacterium, named strain nl21t, was isolated from this system on tsa and r2a agar. the organism is a gram-negative, rod-shaped (1x3 microm) facultative aerobe. optimal growth conditions on r2a agar are 30-35 degrees c, ph 7-7.5 and 1% (w/w) nacl. phylogenetic analysis of the 16s rdna sequence reveals that strain nl21t forms a novel lineage in the family ... | 2004 | 14742492 |
| nitratireductor basaltis sp. nov., isolated from black beach sand. | a gram-negative, coccoid- or rod-shaped bacterium was isolated from black sand collected from soesoggak beach, jeju island, korea. the isolate, designated j3t, grew at 15-45 degrees c, at ph 5.5-10.0 and in 0-8 % nacl. it was oxidase- and catalase-positive. strain j3t reduced nitrate to nitrite, but did not reduce nitrite to nitrogen gas. phylogenetic analysis of the 16s rrna gene sequence showed that strain j3t was closely related to nitratireductor aquibiodomus nl21t and belonged to the genus ... | 2009 | 19126737 |
| nitratireductor kimnyeongensis sp. nov., isolated from seaweed. | an aerobic, gram-negative, catalase-positive, oxidase-positive bacterium was isolated from a dried seaweed sample collected from kimnyeong beach in jeju, republic of korea. the cells of the organism, designated strain ky 101(t), were rods (0.4-0.5x1.2-2.7 mum) and motile by means of flagella. the colonies of the cells were 0.5-1 mm in diameter, smooth, circular, convex and light yellow in colour. the isolate showed growth at 10-40 degrees c, ph 6.1-12.1 and in the presence of 7 % nacl. the major ... | 2009 | 19406788 |
| analysis of the unique geothermal microbial ecosystem of the blue lagoon. | cultivation and culture-independent techniques were used to describe the geothermal ecosystem of the blue lagoon in iceland. the lagoon contains both seawater and freshwater of geothermal origin and is extremely high in silica content. water samples were collected repeatedly in summer and autumn in 2003 and 2005 and in winter 2006 were analyzed for species composition. the study revealed the typical traits of an extreme ecosystem characterized by dominating species and other species represented ... | 2009 | 19709176 |
| nitratireductor indicus sp. nov., isolated from deep-sea water. | a taxonomic study was carried out on a novel bacterial strain, designated c115(t), isolated from a crude-oil-degrading consortium, enriched from deep-sea water of the indian ocean. cells were gram-negative short rods, mobile by means of a monopolar flagellum. growth was observed at salinities of 0-7 % and at 10-43 °c. it was unable to degrade tween 80 or gelatin. 16s rrna gene sequence analysis showed that strain c115(t) was related most closely to nitratireductor aquibiodomus nl21(t) (96.5 % si ... | 2011 | 20228212 |
| nitratireductor pacificus sp. nov., isolated from a pyrene-degrading consortium. | strain pht-3b(t) was isolated from a pyrene-degrading consortium of an enriched sediment from the pacific ocean, collected during the screening of polycyclic aromatic hydrocarbon-degrading bacteria. cells were gram-negative, short rods that were motile by means of flagella. growth was observed at 0-7 % nacl and 10-41 °c. the isolate was able to reduce nitrate to nitrite, but not to nitrogen. 16s rrna gene sequence comparisons showed that strain pht-3b(t) was most closely related to nitratireduct ... | 2010 | 20622050 |
| nitratireductor aquimarinus sp. nov., isolated from a culture of the diatom skeletonema costatum, and emended description of the genus nitratireductor. | two gram-negative, aerobic bacterial strains, designated strains cl-sc21(t) and cl-sc22, were isolated from a culture of skeletonema costatum (korean marine microalgae culture center, kmmcc strain b-396) established from the east sea, korea. the two strains shared 99.9% 16s rrna gene sequence similarity. analysis of the 16s rrna gene sequences of two strains showed an affiliation with the genus nitratireductor, sharing 96.5-97.5% sequence similarity with the type strains of nitratireductor speci ... | 2011 | 21169459 |
| molecular analysis of autochthonous microbiota along the digestive tract of juvenile grouper epinephelus coioides following probiotic bacillus pumilus administration. | aims: to evaluate the diversity of dominant autochthonous microbiota along the digestive tract of juvenile epinephelus coioides following the dietary administration of probiotic bacillus pumilus for 60 days. methods and results: polymerase chain reaction-denaturing gradient gel electrophoresis (pcr-dgge) with subsequently sequencing analysis was used to assess the gut microbiota. generally similar dgge patterns were observed in the foregut, midgut and hindgut of e. coioides, while the similari ... | 2011 | 21294823 |
| nitratireductor lucknowense sp. nov., a novel bacterium isolated from a pesticide contaminated soil. | a straw-yellow pigmented bacterium, strain iitr-21(t) was isolated from a pesticide contaminated site and characterized by using a polyphasic taxonomic approach. the organism had morphological and chemotaxonomic properties consistent with its classification in the genus nitratireductor. phylogenetic analysis of the 16s rrna gene sequence showed that the strain iitr-21(t) belongs to the genus nitratireductor and was moderately related to nitratireductor indicus c115(t) (97.7%) and nitratireductor ... | 2011 | 21833481 |
| Pseudahrensia aquimaris gen. nov., sp. nov., isolated from sea water of Yellow Sea in Korea. | A Gram-staining-negative, non-motile, ovoid to rod-shaped bacterial strain, designated HDW-32T, was isolated from seawater of the Yellow Sea, Korea. Strain HDW-32T grew optimally at pH 7.0-8.0, at 30 °C and in the presence of 2-3 % (w/v) NaCl. Strain HDW-32T exhibited highest 16S rRNA gene sequence similarity value (95.1 %) to Nitratireductor basaltis J3T, and sequence similarity values of 94.8 % to Ahrensia kielensis IAM 12618T and less than 94.2 % to other species used in the phylogenetic anal ... | 2011 | 22021581 |