| taxonomic and phylogenetic studies on a new taxon of budding, hyphal proteobacteria, hirschia baltica gen. nov., sp. nov. | four strains of budding, hyphal bacteria, which had very similar chemotaxonomic properties, were isolated from the baltic sea. the results of dna-dna hybridization experiments, indicated that three of the new isolates were closely related, while the fourth was only moderately related to the other three. sequence signature and higher-order structural detail analyses of the 16s rrna of strain ifam 1418t (t = type strain) indicated that this isolate is related to the alpha subclass of the class pro ... | 1990 | 2275859 |
| the phylogenetic relationships of caulobacter, asticcacaulis and brevundimonas species and their taxonomic implications. | the phylogenetic relationships among the species of caulobacter, asticcacaulis and brevundimonas were studied by comparison of their 16s rdna sequences. the analysis of almost complete sequences confirmed the early evolutionary divergence of the freshwater and marine species of caulobacter reported previously [stahl, d. a., key, r., flesher, b. & smit, j. (1992). j bacteriol 174, 2193-2198]. the freshwater species formed two distinct clusters. one cluster contained the species caulobacter bacter ... | 1999 | 10319468 |
| oceanicaulis alexandrii gen. nov., sp. nov., a novel stalked bacterium isolated from a culture of the dinoflagellate alexandrium tamarense (lebour) balech. | five bacterial strains were isolated from a non-toxigenic strain of the marine dinoflagellate alexandrium tamarense (lebour) balech ccmp 116 (nepcc c116), during a survey of the diversity of bacteria associated with paralytic shellfish toxin-producing cultures of alexandrium spp. (dinophyta). all strains were strictly aerobic, gram-negative, straight or curved rods. cells were dimorphic, with stalks (or prosthecae) and non-motile or non-stalked and motile, by means of a single polar flagellum. t ... | 2003 | 14657121 |
| the hierarchical system of the 'alphaproteobacteria': description of hyphomonadaceae fam. nov., xanthobacteraceae fam. nov. and erythrobacteraceae fam. nov. | phylogenetic analysis of the class 'alphaproteobacteria', including physiologically diverse species, was conducted by using small-subunit rrna gene sequences. the 16s rrna gene sequences of 261 species in the class 'alphaproteobacteria' were obtained from genbank/embl/ddbj for constructing a phylogenetic tree by using maximum-likelihood analysis. in the resulting tree, members of the class 'alphaproteobacteria' were subdivided into five major clusters, which were compared with the taxonomic outl ... | 2005 | 16166687 |
| robiginitomaculum antarcticum gen. nov., sp. nov., a member of the family hyphomonadaceae, from antarctic seawater. | a seawater bacterium, designated imcc3195t, was isolated from the antarctic coast. cells of the novel strain were gram-negative, rusty-coloured, strictly aerobic, chemoheterotrophic, non-budding and non-motile rods or vibrioids that possessed a thin prostheca. based on 16s rrna gene sequence comparisons, the novel strain was most closely related to the genera hyphomonas (89.4-90.9%), maricaulis (90.1-90.4%), hirschia (89.0%) and oceanicaulis (87.9%) of the family hyphomonadaceae. phylogenetic an ... | 2007 | 17978224 |
| hellea balneolensis gen. nov., sp. nov., a prosthecate alphaproteobacterium from the mediterranean sea. | a novel aerobic, heterotrophic, prosthecate bacterium, designated 26iii/a02/215(t), was isolated from surface water of the north-western mediterranean sea. cells stained gram-negative and were straight to slightly curved rods, forming red colonies on agar plates. the strain grew at 15-37 degrees c inclusive (optimum 30 degrees c) and grew optimally at seawater salinity. growth was observed on organic acids, amino acids and complex organic substrates. the fatty acids (>5 %) detected in strain 26i ... | 2008 | 18984685 |
| hirschia maritima sp. nov., isolated from seawater. | a gram-negative, aerobic, orange-coloured bacterium, designated strain gsw-2t, was isolated from seawater sampled at a beach and its taxonomic status was established by using a polyphasic approach. vegetative cells produced a prostheca and reproduced by budding. mature vegetative cells were spherical, oval- or rod-shaped (0.6-1.1x1.2-1.3 microm) and both vegetative cells and buds produced one or more flagella. cells grew well at 30 degrees c and at ph 8.1-9.1, and produced a non-diffusible pigme ... | 2009 | 19620361 |
| ponticaulis koreensis gen. nov., sp. nov., a new member of the family hyphomonadaceae isolated from seawater. | an obligately halophilic, stalked bacterium, designated strain gsw-23(t), was isolated from seawater that had been collected on the coast of jeju, korea. cells of the strain were characteristically gram-negative, aerobic, chemo-organotrophic, non-budding, motile rods or vibrioids that possessed prosthecae and holdfasts. multiplication occurred by means of binary fission. the major ubiquinone was q-10. the dominant cellular fatty acids were summed feature 7 (one or more of c(18 : 1)omega9c, c(18 ... | 2009 | 19628598 |
| maribaculum marinum gen. nov., sp. nov., isolated from deep seawater. | a taxonomic study was carried out on strain p38(t), which was isolated from an enriched polycyclic aromatic hydrocarbon-degrading consortium from a deep seawater sample collected from the indian ocean. phylogenetic analyses based on 16s rrna gene sequences showed that strain p38(t) formed a distinct evolutionary lineage within the family hyphomonadaceae. strain p38(t) was most closely related to members of the genera hyphomonas (92.3-93.5 % 16s rrna gene sequence similarity), hirschia (88.8 %), ... | 2009 | 19643895 |
| bacterial community associated with healthy and diseased reef coral mussismilia hispida from eastern brazil. | in order to characterize the bacterial community diversity associated to mucus of the coral mussismilia hispida, four 16s rdna libraries were constructed and 400 clones from each library were analyzed from two healthy colonies, one diseased colony and the surrounding water. nine bacterial phyla were identified in healthy m. hispida, with a dominance of proteobacteria, actinobacteria, acidobacteria, lentisphaerae, and nitrospira. the most commonly found species were related to the genera azospiri ... | 2010 | 20352207 |
| genome sequences of eight morphologically diverse alphaproteobacteria. | the alphaproteobacteriacomprise morphologically diverse bacteria, including many species of stalked bacteria. here we announce the genome sequences of eight alphaproteobacteria, including the first genome sequences of species belonging to the genera asticcacaulis, hirschia, hyphomicrobium, and rhodomicrobium. | 2011 | 21705585 |