Int J Syst Evol Microbiol 55 (2005), 2171-2175; DOI 10.1099/ijs.0.63582-0
© 2005 International Union of Microbiological Societies
Aeromicrobium alkaliterrae sp. nov., isolated from an alkaline soil, and emended description of the genus Aeromicrobium
Jung-Hoon Yoon,
Choong-Hwan Lee and
Tae-Kwang Oh
Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, South Korea
Correspondence
Jung-Hoon Yoon
jhyoon{at}kribb.re.kr
A Gram-positive, aerobic, non-motile bacterial strain, KSL-107T, was isolated from an alkaline soil from Korea and subjected to a polyphasic taxonomic study. Strain KSL-107T grew optimally at 25 °C and pH 7·0–7·5. Strain KSL-107T had a cell-wall peptidoglycan based on LL-2,6-diaminopimelic acid. It contained MK-9(H4) as the predominant menaquinone and C16 : 0, C16 : 0 2-OH and 10-methyl C18 : 0 as the major fatty acids. The DNA G+C content was 71·5 mol%. Comparative 16S rRNA gene sequence analyses showed that strain KSL-107T was phylogenetically affiliated to the genus Aeromicrobium of the family Nocardioidaceae. Similarity values between the 16S rRNA gene sequence of strain KSL-107T and those of type strains of Aeromicrobium species were in the range 97·9–98·2 %. The isolate could be distinguished from other Aeromicrobium species by levels of DNA–DNA relatedness and differences in some phenotypic characteristics. On the basis of the data presented, it is suggested that strain KSL-107T (=KCTC 19073T=DSM 16824T) represents a novel Aeromicrobium species, for which the name Aeromicrobium alkaliterrae sp. nov. is proposed. An emended description of the genus Aeromicrobium is also proposed.
Abbreviations: DAP, 2,6-diaminopimelic acid
Published online ahead of print on 10 June 2005 as DOI 10.1099/ijs.0.63582-0.
The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain KSL-107T is AY822044.
A table detailing the cellular fatty acid composition of strain KSL-107T is available as supplementary material in IJSEM Online.
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Copyright © 2005 by the International Union of Microbiological Societies.
