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Terrabacter aerolatus sp. nov., isolated from an air sample

¹ Applied Microbiology Division, National Institute of Agricultural Science and Technology, Rural Development Administration, Suwon 441-707, Republic of Korea
² DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Inhoffenstraße 7b, 38124 Braunschweig, Germany
³ KACC – Korean Agricultural Culture Collection, Microbial Genetics Division, National Institute of Agricultural Biotechnology, Rural Development Administration, Suwon 441-707, Republic of Korea

Correspondence
Soon-Wo Kwon
swkwon{at}rda.go.kr

A Gram-positive, strictly aerobic, motile, rod- or coccoid-shaped bacterium, strain 5516J-36^T, was isolated from an air sample from Jeju region, Korea, and its taxonomic position was investigated by a polyphasic approach. The organism grew optimally at 30 °C and pH 7.0–8.0. Comparative 16S rRNA gene sequencing studies demonstrated that this strain was highly related phylogenetically to Terrabacter terrae PPLB^T and Terrabacter tumescens DSM 20308^T, showing 98.9 % sequence similarity to both strains. However, the DNA–DNA reassociation values between 5516J-36^T and the type strains of Terrabacter terrae and Terrabacter tumescens were low (51 and 48 %, respectively). The peptidoglycan type was A3, the predominant menaquinone was MK-8(H₄), the polar lipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylinositol and an unidentified phosphoglycolipid and the whole-cell sugars were glucose, ribose, rhamnose, xylose and galactose. Mycolic acids were absent. The major fatty acids (>5 % of total fatty acids) were iso-C_{15 : 0}, iso-C_{16 : 0}, iso-C_{14 : 0}, iso-C_{17 : 0} and anteiso-C_{15 : 0}. The DNA G+C content was 71.7 mol%. On the basis of the above data, it is proposed that strain 5516J-36^T represents a novel species, Terrabacter aerolatus sp. nov. The type strain of Terrabacter aerolatus is 5516J-36^T (=KACC 20556^T =DSM 18562^T).

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