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Clostridium aestuarii sp. nov., 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 strictly anaerobic, halophilic, motile, endospore-forming, rod-shaped bacterium, designated strain HY-45-18^T, was isolated from a sediment sample of a tidal flat in Korea. The isolate produced butyric acid, propionic acid, glycerol and H₂ as fermentation end products from glucose. Strain HY-45-18^T is halophilic as it was unable to grow in the absence of sea salts. A 16S rRNA gene sequence analysis clearly indicated that the tidal flat isolate is a member of cluster I of the order Clostridiales, which contains the type species of Clostridium, Clostridium butyricum. The closest phylogenetic neighbour of strain HY-45-18^T was Clostridium ganghwense KCTC 5146^T (96.5 % 16S rRNA gene sequence similarity). Several phenotypic characteristics can be readily used to differentiate the isolate from phylogenetically related clostridia. Therefore, strain HY-45-18^T represents a novel species of the genus Clostridium, for which the name Clostridium aestuarii sp. nov. is proposed. The type strain is HY-45-18^T (=IMSNU 40129^T=KCTC 5147^T=JCM 13194^T).

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				H. Na, S. Kim, E. Y. Moon, and J. Chun Marinifilum fragile gen. nov., sp. nov., isolated from tidal flat sediment Int J Syst Evol Microbiol, September 1, 2009; 59(9): 2241 - 2246. [Abstract] [Full Text] [PDF]