Inhella fonticola sp. nov., isolated from spring water, and emended description of the genus Inhella
2012
Chen, Wen-Ming | Sheu, Fu-Sian | Young, Chiu-Chung | Sheu, Shih-Yi
A yellow-pigmented bacterial strain designated TNR-25T was isolated from spring water in Taiwan and was characterized using a polyphasic taxonomic approach. Strain TNR-25T was Gram-negative, obligately aerobic, rod-shaped, non-motile and non-spore-forming. Growth occurred at 15–40 °C (optimum, 25 °C), at pH 6.0–10.0 (optimum, pH 7.0) and with 0–0.5 % NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain TNR-25T belonged to the genus Inhella and its closest neighbour was Inhella inkyongensis IMCC1713T with 98.1 % sequence similarity. The major fatty acids (>10 %) of strain TNR-25T were summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c) and C16 : 0. The major cellular hydroxy fatty acids were C10 : 0 3-OH and C12 : 0 3-OH. The isoprenoid quinone was Q-8 and the DNA G+C content was 69.6 mol%. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, phosphatidylglycerol, phosphatidylserine, diphosphatidylglycerol and several uncharacterized phospholipids. The DNA–DNA relatedness between strain TNR-25T and I. inkyongensis IMCC1713T was about 30.6–35.5 %. On the basis of the genotypic and phenotypic data, strain TNR-25T represents a novel species in the genus Inhella, for which the name Inhella fonticola sp. nov. is proposed; the type strain is TNR-25T ( = BCRC 80211T = LMG 25721T).
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