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Int J Syst Evol Microbiol 58 (2008), 2297-2300; DOI  10.1099/ijs.0.65731-0
© 2008 International Union of Microbiological Societies

Agrococcus jejuensis sp. nov., isolated from dried seaweed

Soon Dong Lee

Department of Science Education, Cheju National University, Jeju 690-756, Republic of Korea

Correspondence
Soon Dong Lee
sdlee{at}cheju.ac.kr

A novel marine actinomycete, designated strain SSW1-48T, was isolated from a dried seaweed sample collected from a beach in Jeju, Republic of Korea. Cells of the organism were non-motile, non-endospore-forming, Gram-positive and rod-shaped. Colonies were circular, smooth, translucent and yellow-coloured. The diagnostic diamino acid in the peptidoglycan was 2,4-diaminobutyric acid and the murein was of the acetyl type. Mycolic acids were absent. The predominant menaquinones were MK-10 and MK-9. The major fatty acids were anteiso-C15 : 0 and iso-C16 : 0. The G+C content of the DNA was 73.0 mol%. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that the isolate formed a distinct branch between Agrococcus lahaulensis and Agrococcus casei in the family Microbacteriaceae. The values for 16S rRNA gene sequence similarity between strain SSW1-48T and type strains of recognized Agrococcus species were in the range 95.5–97.5 % and those between this bacterium and other representatives of the family Microbacteriaceae were in the range 93.7–96.4 %. On the basis of the combined data from the phenotypic and phylogenetic analyses, strain SSW1-48T represents a novel species of the genus Agrococcus, for which the name Agrococcus jejuensis sp. nov. is proposed. The type strain is SSW1-48T (=KCTC 19198T=JCM 14256T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain SSW1-48T is AM396260.

A transmission electron micrograph of cells of strain SSW1-48T is available as a supplementary figure with the online version of this paper.






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