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Int J Syst Evol Microbiol 57 (2007), 809-814; DOI  10.1099/ijs.0.64635-0
© 2007 International Union of Microbiological Societies

Ruania albidiflava gen. nov., sp. nov., a novel member of the suborder Micrococcineae

Qiang Gu1,2, Mariola Pasciak3, Hongli Luo1, Andrzej Gamian3, Zhiheng Liu1 and Ying Huang1

1 State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
2 Graduate University of Chinese Academy of Sciences, Beijing 100049, PR China
3 Laboratory of Medical Microbiology, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wroclaw, Poland

Correspondence
Ying Huang
huangy{at}im.ac.cn

A Gram-positive, coccoid, non-spore-forming bacterium, designated strain 3-6T, was isolated from farmland soil and subjected to a polyphasic taxonomic analysis. Comparative analysis of the 16S rRNA gene sequence revealed that the strain represented a novel member of the suborder Micrococcineae. Its nearest phylogenetic neighbour was the type strain of Georgenia muralis (94.2 % 16S rRNA gene sequence similarity). Chemotaxonomic characteristics of strain 3-6T were as follows: the major menaquinone was MK-8(H4); the polar lipids consisted mainly of diphosphatidylglycerol, phosphatidylglycerol and one unknown glycolipid; the predominant fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0; mycolic acids were absent. A new murein type, L-lys–gly–L-glu–L-Glu (A4{alpha}), was found in the peptidoglycan of the cell wall. The DNA G+C content was 69.8 mol%. On the basis of morphological, chemotaxonomic and phylogenetic characteristics, it is suggested that strain 3-6T represents a novel species of a new genus within the suborder Micrococcineae, for which the name Ruania albidiflava gen. nov., sp. nov. is proposed. The type strain of Ruania albidiflava is 3-6T (=CGMCC 4.3142T=DSM 18029T=JCM 13910T=PCM 2644T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain 3-6T is DQ343153.

A scanning electron micrograph of cells of strain 3-6T, a maximum-parsimony phylogenetic tree and tables detailing the physiological and biochemical properties and cellular fatty acid components of strain 3-6T are available as supplementary material in IJSEM Online.






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