Aeromicrobium ponti sp. nov., isolated from seawater
1 Department of Science Education, Cheju National University, Jeju 690-756, Republic of Korea 2 Educational Science Research Institute, Cheju National University, Jeju 690-756, Republic of Korea Correspondence Soon Dong Lee sdlee{at}cheju.ac.kr A novel actinomycete strain, designated HSW-1 T , was i...
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Published in | International journal of systematic and evolutionary microbiology Vol. 58; no. 4; pp. 987 - 991 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
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Soc General Microbiol
01.04.2008
Society for General Microbiology |
Subjects | |
Online Access | Get full text |
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Summary: | 1 Department of Science Education, Cheju National University, Jeju 690-756, Republic of Korea
2 Educational Science Research Institute, Cheju National University, Jeju 690-756, Republic of Korea
Correspondence Soon Dong Lee sdlee{at}cheju.ac.kr
A novel actinomycete strain, designated HSW-1 T , was isolated from seawater collected from Hwasun Beach on the coast of Jeju Island, Republic of Korea. The cells were aerobic, Gram-positive, oxidase-negative, catalase-positive, non-motile rods. The colonies were circular, smooth, convex and yellow in colour. The cell-wall peptidoglycan of this organism contained LL -diaminopimelic acid as the diagnostic diamino acid. The polar lipids included phosphatidylinositol, diphosphatidylglycerol, phosphatidylglycerol and three unknown phospholipids. The predominant menaquinone was MK-9(H 4 ). The major fatty acids were C 18 : 1 9 c , C 16 : 0 , C 16 : 0 2-OH and 10-methyl C 18 : 0 . The DNA G+C content was 74.0 mol%. A neighbour-joining tree based on 16S rRNA gene sequences showed that this organism falls within the radiation of the genus Aeromicrobium . The closest phylogenetic neighbours were the type strains of Aeromicrobium erythreum (98.2 % 16S rRNA gene sequence similarity), Aeromicrobium alkaliterrae (97.9 %), Aeromicrobium marinum (97.3 %) and Aeromicrobium fastidiosum (97.0 %). The DNA–DNA relatedness values between the novel isolate and its closest relative, A. erythreum DSM 8599 T , ranged between 32 and 36 %. On the basis of the phenotypic and DNA–DNA hybridization data, strain HSW-1 T represents a novel species of the genus Aeromicrobium , for which the name Aeromicrobium ponti sp. nov. is proposed. The type strain is HSW-1 T (=DSM 19178 T =KACC 20565 T ).
The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain HSW-1 T is AM778683 .
A transmission electron micrograph of a cell of strain HSW-1 T and details of the cellular fatty acid profiles of HSW-1 T and the type strains of the genus Aeromicrobium are available as supplementary material with the online version of this paper. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1466-5026 1466-5034 |
DOI: | 10.1099/ijs.0.65575-0 |