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Cellulomonas aerilata sp. nov., isolated from an air sample

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

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

A Gram-positive, aerobic, motile, coccoid or short rod-shaped bacterium, 5420S-23^T, was isolated from an air sample collected in the Republic of Korea. According to phylogenetic analysis based on 16S rRNA gene sequences, strain 5420S-23^T revealed 97.5, 97.3, 97.3 and 97.2 % similarity, respectively, to Cellulomonas biazotea DSM 20112^T, Cellulomonas cellasea DSM 20118^T, Cellulomonas fimi DSM 20113^T and Cellulomonas chitinilytica X.bu-b^T. The peptidoglycan type of strain 5420S-23^T was A4β, containing L-ornithine–D-glutamic acid. The cell-wall sugars were galactose, glucose and xylose. The major fatty acids were anteiso-C_{15 : 0} (49.7 %) and C_{16 : 0} (20.0 %). The major menaquinone was MK-9(H₄) and major polar lipids were diphosphatidylglycerol and phosphatidylglycerol. The DNA G+C content was 74 mol%. The results of DNA–DNA hybridization with strains of closely related Cellulomonas species, in combination with chemotaxonomic and physiological data, demonstrated that isolate 5420S-23^T represents a novel Cellulomonas species, for which the name Cellulomonas aerilata sp. nov. is proposed, with strain 5420S-23^T (=KACC 20692^T =DSM 18649^T) as the type strain.

A neighbour-joining tree based on 16S rRNA gene sequences is available as supplementary material with the online version of this paper.

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