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1 Applied Microbiology Division, National Institute of Agricultural Science and Technology, Rural Development Administration, Suwon 441-707, Republic of Korea
2 Korean Agricultural Culture Collection (KACC), Microbial Genetics Division, National Institute of Agricultural Biotechnology, Rural Development Administration, Suwon 441-707, Republic of Korea
3 DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstrasse 7b, D-38124 Braunschweig, Germany
4 Department of Food and Nutrition, Gachon University of Medicine and Science, Incheon 506-799, Republic of Korea
Correspondence
Soon-Wo Kwon
swkwon{at}rda.go.kr
A pink-coloured bacterial strain, 5516J-15T, was isolated from an air sample from Jeju Island, Republic of Korea. The organism was found to have resistance to UV radiation typical of members of the genus Deinococcus, and it was placed within the radiation of the Deinococcus on a phylogenetic tree based on 16S rRNA gene sequences. Strain 5516J-15T shared low 16S rRNA gene sequence similarity (84.5–87.8 %) with Deinococcus species, showing highest sequence similarity to Deinococcus deserti VCD115T (87.8 %) and Deinococcus indicus Wt/1aT (87.8 %). Strain 5516J-15T had type A3
peptidoglycan with L-ornithine, menaquinone 8 (MK-8) as the major quinone and iso-C12 : 0, anteiso-C13 : 0, iso-C16 : 0 and C16 : 0 as the major fatty acids. Its polar lipid profile contained three unknown aminophospholipids, two unknown polar lipids, one unknown phospholipid and one unknown glycolipid. The DNA G+C content of strain 5516J-15T was 61.3 mol%. Based on the phylogenetic and phenotypic data presented, it is proposed that the unknown strain should be classified within a novel species in the genus Deinococcus with the name Deinococcus cellulosilyticus sp. nov. The type strain is 5516J-15T (=KACC 11606T =DSM 18568T).
A 16S rRNA gene sequence-based maximum-parsimony tree and results of TLC of polar lipids and fatty acid analysis of strain 5516J-15T and related type strains are available as supplementary material with the online version of this paper.
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