| Literature DB >> 15653914 |
Hideki Yamamura1, Masayuki Hayakawa1, Youji Nakagawa1, Tomohiko Tamura2, Tetsuro Kohno3, Fumio Komatsu4, Yuzuru Iimura1.
Abstract
Chemotaxonomic and morphological characterization of two actinomycete strains, MS1-3T and AS4-2, respectively isolated from moat sediment and scumming activated sludge, was carried out. This characterization clearly demonstrated that strains MS1-3T and AS4-2 belong to the genus Nocardia. 16S rRNA gene sequencing studies showed that these isolates are most closely related to Nocardia beijingensis (98.1-98.3 % similarity), Nocardia brasiliensis (97.9-98.0 %) and Nocardia tenerifensis (97.8-97.9 %). However, the results of DNA-DNA hybridizations and physiological and biochemical tests showed that strains MS1-3T and AS4-2 could be differentiated from their closest phylogenetic relatives both genotypically and phenotypically. It is proposed that the two isolates be classified as representatives of a novel species of Nocardia, Nocardia takedensis sp. nov. The type strain is MS1-3T (=NBRC 100417T=DSM 44801T); AS4-2 (=NBRC 100418=DSM 44802) is a reference strain.Entities:
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Year: 2005 PMID: 15653914 DOI: 10.1099/ijs.0.63189-0
Source DB: PubMed Journal: Int J Syst Evol Microbiol ISSN: 1466-5026 Impact factor: 2.747