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Abstract
Strain Tibet-S9a3T was isolated from Qinghai-Tibet Plateau permafrost, China. The isolate was a Gram-negative, non-motile, non-spore-forming short rod. The 16S rRNA gene sequence indicated that strain Tibet-S9a3T was a member of the genus Paracoccus and was closely related to Paracoccus aestuarii B7T (98.2 % 16S rRNA gene sequence similarity), ‘P. beibuensis’ JLT1284 (97.9 %), P. homiensis DD-R11T (97.4 %), P. zeaxanthinifaciens ATCC 21588T (97.4 %) and other type strains of the genus (93.7–96.7 %). The G+C content of the genomic DNA was 69.1 mol% and the major isoprenoid quinone was ubiquinone-10. The major fatty acids were C18 : 1ω7c (87.6 %), C18 : 0 (4.3 %) and C10 : 0 3-OH (2.0 %). DNA–DNA relatedness between strain Tibet-S9a3T and P. aestuarii B7T was 37.9 %. On the basis of phenotypic and genotypic characteristics, it is suggested that strain Tibet-S9a3T represents a novel species of the genus Paracoccus , for which the name Paracoccus tibetensis sp. nov. is proposed. The type strain is Tibet-S9a3T ( = CGMCC 1.8925T = NBRC 105667T).
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Funding
- International Cooperation Program of the Ministry of Science and Technology of China (Award 2009DFA61060)
- Agricultural Science and Technology Achievements Transformation Funding Project (Award 0910XCNA066)
- Major State Basic Research Development Program of China 973 (Award 2012CB026105)
- National Natural Science Foundation (Award 30700082)