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Int J Syst Evol Microbiol 59 (2009), 1914-1918; DOI  10.1099/ijs.0.007443-0
© 2009 International Union of Microbiological Societies

Reclassification of the members of the genus Tetrathiobacter Ghosh et al. 2005 to the genus Advenella Coenye et al. 2005

A. Gibello1, A. I. Vela1,2, M. Martín3, A. Barra-Caracciolo4, P. Grenni4 and J. F. Fernández-Garayzábal1,2

1 Dpto Sanidad Animal, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
2 Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
3 Dpto Bioquímica y Biología Molecular IV, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
4 Water Research Institute – National Research Council, Via Reno 1, 00198 Rome, Italy

Correspondence
J. F. Fernández-Garayzábal
garayzab{at}vet.ucm.es

The taxonomic position of the genera Advenella and Tetrathiobacter was examined. 16S rRNA gene sequence analysis revealed that the two genera are closely related, representing a monophyletic cluster with high sequence similarity (98.1–99.7 %) within the family Alcaligenaceae. The phenotypic characteristics of the type strains of Advenella incenata, Tetrathiobacter kashmirensis and Tetrathiobacter mimigardefordensis were re-examined using the API 20NE, API ZYM and API 50CH systems. Phylogenetic data together with similarities in phenotypic characteristics, G+C content and cellular acid composition suggest that they should be classified in the same genus. On the basis of the data presented, the two species of the genus Tetrathiobacter should be transferred to the genus Advenella, since this genus has nomenclatural priority. Therefore, Tetrathiobacter kashmirensis and Tetrathiobacter mimigardefordensis should be transferred to the genus Advenella as Advenella kashmirensis comb. nov. (type strain WT001T =LMG 22695T =MTCC7002T) and Advenella mimigardefordensis comb. nov. (type strain DPN7T =DSM 17166T =LMG 22922T). Emended descriptions of Advenella incenata and the genus Advenella are also presented.

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of A. incenata strains CCUG 45225T and 4GA-2008 are AM944734 and AM944735.






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