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Kineococcus gynurae sp. nov., isolated from a Thai medicinal plant

¹ Department of Microbiology, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
² Department of Genetics, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
³ Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan

Correspondence
Kannika Duangmal
fscikkd{at}ku.ac.th
or kannikaduangmal{at}hotmail.com

A novel, Gram-positive, motile, coccus-shaped, orange-pigmented organism, designated strain KKD096^T, was isolated from the roots of a Thai medicinal plant, Gynura pseudochina DC. var. hispida Thwaites. Growth of strain KKD096^T occurred at temperatures of 14–34 °C, at pH 5.0–9.0 and at NaCl concentrations up to 7 % (w/v). Whole-cell hydrolysates contained arabinose and galactose as the characteristic sugars. The diagnostic diamino acid of the peptidoglycan was meso-diaminopimelic acid. The glycan moiety of the murein contained acetyl residues. The predominant menaquinone was MK-9(H₂); mycolic acids were not detected. The genomic DNA G+C content was 73.3 mol%. The major cellular fatty acid was anteiso-C_{15 : 0} (81.42 % of the total). Strain KKD096^T was assigned to the genus Kineococcus on the basis of 16S rRNA gene sequence analysis; it was most closely related to Kineococcus radiotolerans DSM 14245^T (97.1 % similarity). DNA–DNA hybridization revealed 39.4 % relatedness between these two taxa. On the basis of the genotypic and phenotypic data presented, strain KKD096^T is considered to represent a novel species of the genus Kineococcus, for which the name Kineococcus gynurae sp. nov. is proposed. The type strain is KKD096^T (=TISTR 1856^T=NRRL B-24568^T=BCC 26245^T=NBRC 103943^T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain KKD096^T is EF667339.

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