Mycolicibacterium stellerae sp. nov., a rapidly growing scotochromogenic strain isolated from Stellera chamaejasme

Imen Nouioui, Vartul Sangal, Carlos Cortés-Albayay, Marlen Jando, José Mariano Igual, Hans-Peter Klenk, Yu-Qin Zhang, Michael Goodfellow

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Abstract

A polyphasic study was undertaken to establish the taxonomic provenance of a rapidly growing Mycolicibacterium strain, CECT 8783T, recovered from the plant Stellera chamaejasme L. in Yunnan Province, China. Phylogenetic analyses based upon 16S rRNA and whole-genome sequences showed that the strain formed a distinct branch within the evolutionary radiation of the genus Mycolicibacterium. The strain was most closely related to Mycolicibacterium moriokaense DSM 44221T with 98.4 % 16S rRNA gene sequence similarity, but was distinguished readily from this taxon by a combination of chemotaxonomic and phenotypic features and by low average nucleotide identity and digital DNA-DNA hybridization values of 79.5 and 21.1 %, respectively. Consequently, the strain is considered, to represent a novel species of Mycolicibacterium for which the name Mycolicibacterium stellerae sp. nov is proposed; the type strain is I10A-01893T (=CECT 8783T=KCTC 19843T=DSM 45590T).

Original languageEnglish
Pages (from-to)3465-3471
Number of pages7
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume69
Issue number11
Early online date28 Aug 2019
DOIs
Publication statusPublished - 1 Nov 2019

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