期刊
SYSTEMATIC AND APPLIED MICROBIOLOGY
卷 36, 期 5, 页码 325-329出版社
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.syapm.2013.04.001
关键词
Tropicibacter; Roseobacter; Phaeobacter; Polyphasic taxonomy; ANI; MALDI-TOF
资金
- Spanish Ministerio de Ciencia e Innovacion [CGL2010-18134 BOS]
- [PROMETEO/2012/040]
Four strains (M15empty set_3, M17(T), M49 and R37(T)) were isolated from Mediterranean seawater at Malvarrosa beach, Valencia, Spain. Together with an older preserved isolate (strain 2OM6) from cultured oysters at Vinaroz, Castellon, Spain, the strains were thoroughly characterized in a polyphasic study and were placed phylogenetically within the Roseobacter clade in the family Rhodobacteraceae. Highest 16S rRNA sequence similarities of the five strains to the types of any established species corresponded to Tropicibacter multivorans (95.8-96.4%), Phaeobacter inhibens (95.9-96.3%) and Phaeobacter gallaeciensis (95.9-96.2%). On the other hand, whole genome (ANI) and protein fingerprinting (MALDI-TOF) data proved: (i) non clonality among the strains, and (ii) the existence of two genospecies, one consisting of strains M15empty set_3, M17(T), M49 and 2OM6 and another one consisting of strain R37(T). Phenotypic traits determined allow differentiating both genospecies from each other and from closely related taxa. In view of all data collected we propose to accommodate these isolates in two species as members of the genus Tropicibacter, Tropicibacter mediterraneus sp. nov. (type strain M17(T) = CECT 7615(T) = KCTC 23058(T)) and Tropicibacter litoreus sp. nov. (type strain R37(T) = CECT 7639(T) = KCTC 23353(T)). (C) 2013 Elsevier GmbH. All rights reserved.
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