rhizobium rosettiformans sp. nov., isolated from a hexachlorocyclohexane dump site, and reclassification of blastobacter aggregatus hirsch and muller 1986 as rhizobium aggregatum comb. nov.a gram-negative, rod-shaped, motile, aerobic bacterial strain, w3(t), was isolated from hexachlorocyclohexane (hch)-contaminated groundwater from lucknow, india, and its taxonomic position was determined using a polyphasic approach. strain w3(t) shared highest 16s rrna gene sequence similarity of 97.8 % with rhizobium selenitireducens b1(t), followed by rhizobium daejeonense l61(t) (97.7 %), rhizobium radiobacter atcc 19358(t) (97.5 %) and blastobacter aggregatus ifam 1003(t) (97.2 %). strain w3 ...201120584817
rhizobium halophytocola sp. nov., a novel bacterium isolated from the root of a coastal dune plant.during a study of endophytic bacteria from coastal dune plants, a bacterial strain, designated yc6881t, was isolated from the root of rosa rugosa collected from the coastal dune areas of namhae island. the bacterium was found to be gram-negative, motile, halophilic and heterotrophic with a polar single flagellum. strain yc6881t exhibited growth at temperature 4-37 °c (optimum at 28-32 °c), ph 6.0-9.0 (optimum at ph 7.0-8.0) and was able to grow at nacl concentrations in the range of 0-7.5 % (w/v ...201122021574
predominant nifh transcript phylotypes related to rhizobium rosettiformans in field-grown sugarcane plants and in norway spruce.although some sugarcane cultivars may benefit substantially from biological nitrogen fixation (bnf), the responsible bacteria have been not identified yet. here, we examined the active diazotrophic bacterial community in sugarcane roots from africa and america by reverse transcription (rt)-pcr using broad-range nifh-specific primers. denaturing gradient gel electrophoresis (dgge) profiles obtained from sugarcane showed a low diversity at all sample locations with one phylotype amounting up to 10 ...201123761284
rhizobium alvei sp. nov., isolated from a freshwater river.a bacterial strain designated tnr-22(t) was isolated from a freshwater river in taiwan and characterized using a polyphasic taxonomic approach. cells of strain tnr-22(t) were facultatively anaerobic, gram-stain-negative, rod-shaped, motile by a single polar flagellum and formed cream-coloured colonies. growth occurred at 4-45 °c (optimum, 25-30 °c), with 0-1.0 % (w/v) nacl (optimum, 0.5 %) and at ph 7.0-8.0 (optimum, ph 7.0). strain tnr-22(t) did not form nodules on macroptilium atropurpureum. t ...201525385988
rhizobium populi sp. nov., an endophytic bacterium isolated from populus endophytic bacterium, designated k-38(t), was isolated from the storage liquid in the stems of populus euphratica trees at the ancient ugan river in xinjiang, pr china. strain k-38(t) was found to be rod-shaped, gram-stain-negative, aerobic, non-motile and non-spore-forming. strain k-38(t) grew at temperatures of 25-37 °c (optimum, 28 °c), at ph 6.0-9.0 (optimum, ph 7.5) and in the presence of 0-3 % (w/v) nacl with 1 % as the optimum concentration for growth. according to phylogenetic analysi ...201424972613
rhizobium lemnae sp. nov., a bacterial endophyte of lemna aequinoctialis.bacterial strain l6-16(t) was isolated from lemna aequinoctialis. cells were gram-stain-negative, rod-shaped and motile with monopolar flagella. the phylogenetic analysis of its nearly complete 16s rrna gene sequence revealed that strain l6-16(t) was a member of the genus rhizobium. its closest relative was rhizobium tarimense pl-41(t) with a 16s rrna gene sequence similarity value of 98.3%. sequence similarity analysis of the housekeeping reca and atpd genes showed low levels of sequence simila ...201424786354
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