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Volume 64, Issue Pt_1

Taxonomic study of the genus : transfer of to the genus as comb. nov., emended description of the genus and description of sp. nov., isolated from a terrestrial hot spring Free

Abstract

Comparative phenotypic, chemotaxonomic and genetic analysis revealed significant similarities among strains of the genera and . Analysis of 16S rRNA gene sequences and DNA–DNA relatedness of the type strains N2-214 and 4BON showed sequence similarity of 98.9 % and less than 40 % relatedness, indicating that these strains represent different species of same genus. Both strains had phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and diphosphatidylglycerol as major polar lipids. Their fatty acid profiles were almost identical, with the predominant fatty acids C, C cyclo and C cyclo ω8. In view of this, we propose to transfer the member of the genus to the genus as comb. nov. and to emend the description of the genus . Further, a novel bacterium, strain JHK30, was isolated from a terrestrial hot spring located at Jharkhand, India, and was identified following a polyphasic approach. Cells were non-sporulating, aerobic, Gram-stain-negative rods and motile by a single polar flagellum. Optimum temperature for growth was 50–55 °C at pH 6.5–7.0. 16S rRNA gene sequence analysis revealed 99.71 % similarity with 4BON ( = DSM 15512) and 98.71 % with N2-214 ( = DSM 15129). However, DNA–DNA relatedness of strain JHK30 with these two type strains was well below 70 %. The DNA G+C base composition was 66.1 mol%. Strain JHK30 represents a novel species of the genus for which the name sp. nov. is proposed. The type strain is JHK30 ( = JCM 19170 = LMG 27587= DSM 27220).

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Funding
This study was supported by the:
  • Council of Scientific and Industrial Research (CSIR), Government of India (Award 37(1510)/11/EMR-11)
  • Department of Biotechnology, Government of India
© 2014 IUMS
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2014-01-01
2024-04-19
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Taxonomic study of the genus Tepidiphilus: transfer of Petrobacter succinatimandens to the genus Tepidiphilus as Tepidiphilus succinatimandens comb. nov., emended description of the genus Tepidiphilus and description of Tepidiphilus thermophilus sp. nov., isolated from a terrestrial hot spring
Int J Syst Evol Microbiol 64, 228 (2014); https://doi.org/10.1099/ijs.0.056424-0
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