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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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    Abstract - Issue May 2013, 34 (3)                                     Back


nstantaneous and historical temperature effects on a-pinene

Isolation and characterization of a novel bacterial strain Shewanella marinisediminis sp. nov. from deep-sea
sediments

 

Young Sug Kim1, Jin-Soo Park2, Hyun Ok Yang2 and Hak Cheol Kwon2*

1Marine Environment Research Division, National Fisheries Research & Development Institute, Busan 619-705, Republic of Korea,

2Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, Gangwon-do 210-340, Republic of Korea

*Corresponding Author email : biochip@nfrdi.go.kr

 

 

 

 Publication Data

Paper received:

01 February 2012

 

Revised received:

17 September 2012

 

Accepted:

22 October 2012

 

Abstract

A new bacterial strain designated DH39T was isolated from marine sediment collected from the East Sea, Korea. Phylogenetic analysis using the 16S rRNA gene sequence revealed that strain DH39T clustered with the genus Shewanella and is closely related to Shewanella canadensis HAW-EB2T, S. woodyi MS32T, and S. sediminis HAW-EB3Twith 98.1, 97.8, and 97.6% sequence similarities, respectively. The isolated bacterium was Gram-negative, rod-shaped, and aerobic. Its temperature range for growth was 4?30?C. The predominant fatty acids were 16:1w7, 17:1w8, 13:0-i, 16:0, and 15:0-i. The DNA G+C content was 45.0 mol%. DNA-DNA hybridization analysis showed that DNA-DNA relatedness values in the 16S rRNA phylogenetic tree of strain DH39T and its nearest neighbors S. hanedai and S. sediminis were 52.9 and 58.7%. Phylogenetic evidence and phenotypic characteristics suggest strain DH39T constitutes a novel Shewanella species. Therefore, we propose Shewanella marinisediminis sp. nov., with DH39T (KCCM 42936T = NCCB 100311T) as the type strain.

 

Key words

New bacterial strain, DH39T, Shewanella marinisediminis, Polyphasic taxonomy

 

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