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Clostridium ganghwense sp. nov., isolated from tidal flat sediment

School of Biological Sciences and Institute of Microbiology, Seoul National University, 56-1 Shillim-dong, Kwanak-gu, Seoul 151-742, Republic of Korea

Correspondence
Jongsik Chun
jchun{at}snu.ac.kr

A Gram-negative, strictly anaerobic, halophilic, motile, sporulating and rod-shaped bacterium, designated strain HY-42-06^T, was isolated from tidal flat sediment from Ganghwa Island in South Korea. The isolate produced glycerol, ethanol and CO₂ as fermentation end-products from glucose. Strain HY-42-06^T grew optimally at 35 °C, pH 7·5 and 3 % (w/v) artificial sea salts. No growth was observed in the absence of sea salts. In phylogenetic analyses based on 16S rRNA gene sequence, strain HY-42-06^T showed a distinct phyletic line within the members of cluster I of the order Clostridiales. The closest phylogenetic neighbour to strain HY-42-06^T was Clostridium novyi ATCC 17861^T (94·91 % 16S rRNA gene sequence similarity). Several phenotypic characters readily differentiate the tidal flat isolate from phylogenetically related clostridia. On the basis of polyphasic evidence, strain HY-42-06^T should be classified as a representative of a novel species, for which the name Clostridium ganghwense sp. nov. is proposed. The type strain is HY-42-06^T (=IMSNU 40127^T=KCTC 5146^T=JCM 13193^T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain HY-42-06^T is AY903294.

Scanning and transmission electron micrographs of cells of strain HY-42-06^T are available as supplementary figures in IJSEM Online.

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				S. Kim, H. Jeong, and J. Chun Clostridium aestuarii sp. nov., from tidal flat sediment Int J Syst Evol Microbiol, June 1, 2007; 57(6): 1315 - 1317. [Abstract] [Full Text] [PDF]