Reichenbachiella faecimaris sp. nov., isolated from a tidal flat, and emended descriptions of the genus Reichenbachiella and Reichenbachiella agariperforans

Autor: Jaesoo Yoo, A-Rum Park, Chae-Sung Lim, Dong-Hyun Roh, Byoung-Joon Park, Je-Kwan Lee, Sung-Keun Rhee, Dong-Hun Lee, In-Tae Cha, Yong-Sik Oh, Soo-Je Park
Rok vydání: 2010
Předmět:
Zdroj: International journal of systematic and evolutionary microbiology. 61(Pt 8)
ISSN: 1466-5034
Popis: A taxonomic study was carried out on two bacterial strains, PCP11T and PCP104, isolated from a tidal flat of the Yellow Sea, Korea. Comparative 16S rRNA gene sequence studies showed that these strains belonged to the family Cytophagaceae, phylum Bacteroidetes. Strains PCP11T and PCP104 shared 99.4 % sequence similarity and were related most closely to Reichenbachiella agariperforans KMM 3525T (95.8 and 96.0 % sequence similarity, respectively). Members of the genera Fulvivirga, Roseivirga, Fabibacter and Marinoscillum were the next closest relatives of the new isolates, with sequence similarities ≤91 %. The two isolates were Gram-staining-negative, strictly aerobic, gliding bacteria. They grew in the presence of 1–5 % NaCl, at pH 5.5–8.5 and at 4–35 °C. Strains PCP11T and PCP104 shared a number of physiological and biochemical properties with Reichenbachiella agariperforans KMM 3525T, but they differed from this strain in the hydrolysis of biopolymers and in the production of carotenoid and flexirubin-type pigments. Both strains possessed iso-C15 : 0, summed feature 4 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) and C15 : 0 as major cellular fatty acids. The major respiratory quinone was menaquinone 7 (MK-7). The G+C contents of the genomic DNA of strains PCP11T and PCP104 were 39.6 and 41.9 mol%, respectively. On the basis of phenotypic data and phylogenetic inference, it is proposed that the two isolates represent a novel species, Reichenbachiella faecimaris sp. nov., with strain PCP11T ( = KACC 14523T = JCM 16588T) as the type strain. Emended descriptions of the genus Reichenbachiella and Reichenbachiella agariperforans are also proposed.
Databáze: OpenAIRE