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  • Title: Niabella aquatica sp. nov., isolated from lake water.
    Author: Siddiqi MZ, Im WT.
    Journal: Int J Syst Evol Microbiol; 2016 Sep; 66(8):2774-2779. PubMed ID: 27031646.
    Abstract:
    A Gram-reaction-negative, strictly aerobic, non-motile, yellow and rod-shaped bacterium (designated RP-2T) isolated from lake water, was characterized by a polyphasic approach to clarify its taxonomic position. Strain RP-2T was observed to grow optimally at 30 °C and at pH 7.0 on R2A medium. Phylogenetic analysis based on 16S rRNA gene sequences indicated that RP-2T represented a member of the genus Niabella of the family Chitinophagaceae and was most closely related to Niabella yanshanensis KACC 14980T (96.6 %), Niabella ginsengisoliKACC 13021T (96.5 %), Niabella drilacis DSM 25811T (95.7 %) and Niabella aurantiaca KACC 11698T (95.6 %). The DNA G+C content was 44.5 mol%. The major polar lipids were diphosphatidylglycerol (DPG) and phosphatidylethanolamine (PE). The predominant quinone was MK-7. The major fatty acids were iso-C15:0, iso-C15:1G, iso-C17:0 3-OH and summed feature 3 (comprising C16:1ω7c and/or C16:1ω6c) supported the affiliation of RP-2T to the genus Niabella. However, RP-2T could be distinguished genotypically and phenotypically from the species of the genus Niabella with validly published names. The novel isolate therefore represents a novel species, for which the name Niabella aquatica sp. nov. is proposed, with the type strain RP-2T (=KACC 18623T =JCM 30952T).
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