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Int J Syst Evol Microbiol 57 (2007), 696-700; DOI  10.1099/ijs.0.64632-0
© 2007 International Union of Microbiological Societies

Trabulsiella odontotermitis sp. nov., isolated from the gut of the termite Odontotermes formosanus Shiraki

Jui-Hsing Chou1, Wen-Ming Chen2, A. B. Arun1 and Chiu-Chung Young1

1 Department of Soil Environmental Science, College of Agriculture and Natural Resources, National Chung Hsing University, Taichung, Taiwan
2 Department of Seafood Science, National Kaohsiung Marine University, 142 Hai-Chuan Rd, Nan-Tzu, Kaohsiung City 811, Taiwan

Correspondence
Wen-Ming Chen
p62365{at}ms28.hinet.net

Bacterial strains Eant 3-9T and Eant 3-3, isolated from the gut of the termite Odontotermes formosanus, were characterized using a polyphasic taxonomic approach. Cells of these organisms were Gram-negative, non-pigmented, rod-shaped, non-endospore-forming and facultatively anaerobic. Phenotypic, physiological and genetic characteristics of the two strains were highly similar. Phylogenetic analyses using 16S rRNA gene sequences showed that strain Eant 3-9T formed a monophyletic branch towards the periphery of the evolutionary radiation occupied by the genus Trabulsiella; its closest neighbour was Trabulsiella guamensis DSM 16940T (98.1 % similarity). Genomic DNA–DNA relatedness between strains Eant 3-9T and Eant 3-3 was 96±4 %, indicating that they belong to a single species. Eant 3-9T displayed DNA–DNA relatedness values of 48±5 and 14±3 % with T. guamensis DSM 16940T and Salmonella typhimurium ATCC 13311T, respectively, indicating that Eant 3-9T warrants novel species status in the genus Trabulsiella. Eant 3-9T and Eant 3-3 could be further distinguished from T. guamensis DSM 16940T using whole-cell protein profiles and a range of physiological and biochemical characteristics. It is evident from genotypic and phenotypic data that Eant 3-9T represents a novel species in the genus Trabulsiella, for which the name Trabulsiella odontotermitis sp. nov. is proposed. The type strain is Eant 3-9T (=BCRC 17577T=LMG 23580T); Eant 3-3 is a reference strain.

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of strains Eant 3-9T and Eant 3-3 are DQ453129 and DQ453130, respectively.

Electrophoretic protein patterns of the novel strains and related bacteria and tables showing phenotypic characteristics and antibiograms of members of the genus Trabulsiella are available as supplementary material in IJSEM Online.






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Copyright © 2007 by the International Union of Microbiological Societies.