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Int J Syst Evol Microbiol 57 (2007), 721-724; DOI  10.1099/ijs.0.64805-0
© 2007 International Union of Microbiological Societies

Actinoplanes couchii sp. nov.

Peter Kämpfer1, Birgit Huber2, Kathrin Thummes1, Iris Grün-Wollny3 and Hans-Jürgen Busse2,4

1 Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
2 Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität, A-1210 Wien, Austria
3 Labor Grün-Wollny, D-35394 Giessen, Germany
4 Institut für Mikrobiologie und Genetik, Universität Wien, A-1030 Wien, Austria

Correspondence
Peter Kämpfer
peter.kaempfer{at}agrar.uni-giessen.de

A Gram-positive bacterium, strain GW8-1761T, was isolated from soil close to the Marmore waterfalls, Terni, Italy. 16S rRNA gene sequence similarity studies showed that strain GW8-1761T belonged to the genus Actinoplanes, being most closely related to Actinoplanes italicus JCM 3165T (98.9 %), A. rectilineatus IFO 13941T (98.5 %), A. palleronii JCM 7626T (97.8 %), A. utahensis IFO 13244T (97.6 %) and A. cyaneus DSM 46137T (97.6 %). Strain GW8-1761T could be distinguished from any other Actinoplanes species with validly published names by 16S rRNA gene sequence similarity values of less than 97.5 %. Chemotaxonomic data [major menaquinone MK-9(H4); major polar lipids diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol, with phosphatidylcholine and aminoglycolipids absent; major fatty acids C15 : 0, C16 : 0, C16 : 0 iso, C17 : 1{omega}8c and summed feature 3 (C16 : 1{omega}7c and/or C15 : 0 iso 2-OH)] supported the affiliation of strain GW8-1761T to the genus Actinoplanes. The results of DNA–DNA hybridizations and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain GW8-1761T from the most closely related species. Strain GW8-1761T therefore merits species status, and we propose the name Actinoplanes couchii sp. nov., with the type strain GW8-1761T (=DSM 45050T=CIP 109316T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain GW8-1761T is AM400230.

A neighbour-joining tree based on 16S rRNA gene sequences showing the position of strain GW8-1761T is available as supplementary material in IJSEM Online.






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