Porphyrobacter algicida sp. nov., an algalytic bacterium isolated from seawater
Kristyanto, Sylvia and Lee, Sang Don and Kim, Jaisoo,, 67, 4526-4533 (2017),
doi = https://doi.org/10.1099/ijsem.0.002324,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= A novel Gram-stain-negative, yellow-pigmented, catalase- and oxidase-positive, non-endospore-forming, flagellated bacterium, designated strain Yeonmyeong 2-22T, was isolated from surface seawater of Geoje Island, Republic of Korea. Strain Yeonmyeong 2-22T showed algalytic activity against the seven strains tested: Cochlodinium polykrikoides, Chattonella marina, Heterosigma akashiwo, Scrippsiella trochoidea, Heterocapsa triquetra, Prorocentrum minimum and Skeletonema costatum. A taxonomic study was carried out based on a polyphasic approach to characterize the exact taxonomic position of strain Yeonmyeong 2-22T. The bacterium was able to grow at 10–40 °C, at salinities from 0 to 9 %, at pH from 4.0 to 9.0 and was not able to degrade gelatin or casein. Phylogenetic analysis of 16S rRNA gene sequences revealed that strain Yeonmyeong 2-22T was considered to represent a novel species of the genus Porphyrobacter , which belongs to the family Erythrobacteraceae, and was related most closely to Porphyrobacter dokdonensis DSW-74T with 97.23 % 16S rRNA gene sequence similarity. The dominant cellular fatty acids of strain Yeonmyeong 2-22T were C18 : 1ω7c (49.7 %), C16 : 0 (12.0 %) and 11-methyl C18 : 1ω7c (11.5 %), and ubiquinone-10 (Q-10) was the predominant respiratory lipoquinone. The genomic DNA G+C content of strain Yeonmyeong 2-22T was calculated to be 63.0 mol%. Phenotypic characteristics of the novel strain also differed from other members of the genus Porphyrobacter . On the basis of polyphasic taxonomic data, strain Yeonmyeong 2-22Trepresents as a novel species of the genus Porphyrobacter , for which the name of Porphyrobacter algicida sp. nov. is proposed. The type strain is Yeonmyeong 2-22T (=KEMB 9005-328T=JCM 31499T).,
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