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Paenibacillus alkaliterrae sp. nov., isolated from an alkaline soil in Korea

¹ Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea
² The Center for Traditional Microorganism Resources, Keimyung University, Shindang-Dong, Dalseo-gu, Daegu, Korea

Correspondence
Jung-Hoon Yoon
jhyoon{at}kribb.re.kr

A Gram-positive, rod-shaped, motile and endospore-forming bacterial strain, KSL-134^T, was isolated from an alkaline soil in Korea, and its taxonomic position was investigated by a polyphasic study. Strain KSL-134^T grew optimally at pH 7·5 and 30 °C. Its cell wall peptidoglycan contained meso-diaminopimelic acid. Strain KSL-134^T was characterized as having MK-7 as the predominant menaquinone and anteiso-C_{15 : 0} as the major fatty acid. The DNA G+C content was 49·4 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain KSL-134^T formed a distinct lineage within the evolutionary radiation encompassed by the genus Paenibacillus. Similarity levels between the 16S rRNA gene sequence of strain KSL-134^T and those of the type strains of recognized Paenibacillus species ranged from 90·4 to 96·5 %. DNA–DNA relatedness levels and some differential phenotypic properties were enough to distinguish strain KSL-134^T from several phylogenetically related Paenibacillus species. On the basis of phenotypic and phylogenetic data, strain KSL-134^T (=KCTC 3956^T=DSM 17040^T) was classified in the genus Paenibacillus as a member of a novel species, for which the name Paenibacillus alkaliterrae sp. nov. is proposed.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain KSL-134^T is AY960748.

A neighbour-joining tree based on 16S rRNA gene sequences showing the phylogenetic positions of Paenibacillus alkaliterrae KSL-134^T, Paenibacillus species and representatives of some other related taxa is available as supplementary data in IJSEM Online.

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