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Int J Syst Evol Microbiol 57 (2007), 2163-2166; DOI  10.1099/ijs.0.65069-0
© 2007 International Union of Microbiological Societies

Humihabitans oryzae gen. nov., sp. nov.

Akiko Kageyama1, Yoko Takahashi1 and Satoshi Omura1,2

1 Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
2 The Kitasato Institute, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan

Correspondence
Yoko Takahashi
ytakaha{at}lisci.kitasato-u.ac.jp

Strain KV-657T was isolated from a paddy field soil sample collected in Japan using GPM agar plates supplemented with catalase. The strain was a Gram-positive, aerobic organism that formed branching hyphae with LL-diaminopimelic acid as the diagnostic peptidoglycan diamino acid. The major menaquinone was MK-8(H4). Mycolic acids were not detected. The G+C content of the DNA was 70 mol%. 16S rRNA gene sequence analysis revealed that this strain is closely related to Intrasporangium calvum DSM 43043T, with a similarity of 97.6 %. Based on the morphological, biochemical and chemotaxonomic properties of this strain and phylogenetic analysis, it was concluded that this isolate represents a new genus and species in the family Intrasporangiaceae, for which the name Humihabitans oryzae gen. nov., sp. nov. is proposed. The type strain of Humihabitans oryzae is KV-657T (=NRRL B-24470T =NBRC 101802T).

Abbreviations: A2pm, diaminopimelic acid

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain KV-657T is AB282887.

Scanning electron micrographs of cells of strain KV-657T and HPLC traces from menaquinone analysis of the novel strain and I. calvum NBRC 12989T are available as supplementary material with the online version of this paper.






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Copyright © 2007 by the International Union of Microbiological Societies.