| parvularcula bermudensis gen. nov., sp. nov., a marine bacterium that forms a deep branch in the alpha-proteobacteria. | two bacterial strains, htcc2503t and htcc2517, were isolated from the bermuda atlantic time series station in the western sargasso sea, atlantic ocean, by new high-throughput culture methods that rely on dilution to extinction in very-low-nutrient media. characterization of the two strains by polyphasic approaches revealed that they belonged to the same species. these isolates are gram-negative, strictly aerobic, chemoheterotrophic, slightly motile short rods with a single flagellum. the tempera ... | 2003 | 12892122 |
| a robust species tree for the alphaproteobacteria. | the branching order and coherence of the alphaproteobacterial orders have not been well established, and not all studies have agreed that mitochondria arose from within the rickettsiales. a species tree for 72 alphaproteobacteria was produced from a concatenation of alignments for 104 well-behaved protein families. coherence was upheld for four of the five orders with current standing that were represented here by more than one species. however, the family hyphomonadaceae was split from the othe ... | 2007 | 17483224 |
| phylogenomics and signature proteins for the alpha proteobacteria and its main groups. | alpha proteobacteria are one of the largest and most extensively studied groups within bacteria. however, for these bacteria as a whole and for all of its major subgroups (viz. rhizobiales, rhodobacterales, rhodospirillales, rickettsiales, sphingomonadales and caulobacterales), very few or no distinctive molecular or biochemical characteristics are known. | 2007 | 18045498 |
| parvularcula lutaonensis sp. nov., a moderately thermotolerant marine bacterium isolated from a coastal hot spring. | strain cc-mms-1(t), a motile, gram-negative, orange-pigmented bacterium, was isolated from water samples collected from a rare coastal hot spring at lutao, an island off the eastern coast of taiwan. 16s rrna gene sequence studies showed that the novel strain was closely related to parvularcula bermudensis htcc2503(t) (95.1 % sequence similarity). the fatty acid profile was slightly different from p. bermudensis htcc2503(t). the results of physiological and biochemical tests allowed clear phenoty ... | 2009 | 19406781 |
| complete genome sequence of strain htcc2503t of parvularcula bermudensis, the type species of the order "parvularculales" in the class alphaproteobacteria. | the order "parvularculales" represents the seventh order in the class alphaproteobacteria. parvularcula bermudensis, the type species of the order, was isolated from the sargasso sea using dilution-to-extinction culturing. we present here the complete genome sequence of parvularcula bermudensis htcc2503(t), which contains genes for carotenoid biosynthesis, dimethylsulfoniopropionate demethylase, and transduction-like gene transfer agents. | 2010 | 21037002 |