水生鞘氨醇单胞菌新种，一株从石油烃污染地下水中分离到的甲苯、间二甲苯和对二甲苯降解菌。
Sphingobium aquiterrae sp. nov., a toluene, meta- and para-xylene-degrading bacterium isolated from petroleum hydrocarbon-contaminated groundwater.
机构信息
1Regional University Center of Excellence in Environmental Industry, Szent István University, Páter K. u. 1., H-2100 Gödöllő, Hungary.
2Department of Microbiology, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117 Budapest, Hungary.
出版信息
Int J Syst Evol Microbiol. 2018 Sep;68(9):2807-2812. doi: 10.1099/ijsem.0.002898. Epub 2018 Jul 5.
A Gram-negative, aerobic, slightly yellow-pigmented bacterium, designated as SKLS-A10, was isolated from groundwater sample of the 'Siklós' petroleum hydrocarbon contaminated site (Hungary). Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain SKLS-A10 formed a distinct phyletic lineage within the genus Sphingobium. It shared the highest 16S rRNA gene homology with Sphingobium abikonense DSM 23268 (97.29 %), followed by Sphingobium lactosutens DSM 23389 (97.23 %), Sphingobium phenoxybenzoativorans KCTC 42448 (97.16 %) and Sphingobium subterraneum NBRC 109814 (96.74 %). The predominant fatty acids (>5 % of the total) are C18 : 1ω7c, C14 : 0 2-OH, C16 : 1ω7c/iso C15 : 0 2-OH, C17 : 1ω6c and C16 : 0. The major ubiquinone is Q-10. The predominant polyamine is spermidine. The major polar lipids are sphingoglycolipid and diphosphatidylglycerol. The DNA G+C content of strain SKLS-A10 is 65.9 mol%. On the basis of evidence from this taxonomic study using a polyphasic approach, strain SKLS-A10 represents a novel species of the genus Sphingobium for which the name Sphingobiumaquiterrae sp. nov. is proposed. The type strain is SKLS-A10 (=DSM 106441=NCAIM B. 02634).
一株革兰氏阴性、需氧、略带黄色素的细菌，被命名为 SKLS-A10，从受石油烃污染的“锡克洛什”地下水样本中分离得到（匈牙利）。基于 16S rRNA 基因序列的系统发育分析表明，菌株 SKLS-A10 形成了鞘氨醇单胞菌属内的一个独特分支。它与鞘氨醇单胞菌 abikonense DSM 23268（97.29%）的 16S rRNA 基因同源性最高，其次是乳脂鞘氨醇单胞菌 DSM 23389（97.23%）、邻苯二酚苯氧乙酸鞘氨醇单胞菌 KCTC 42448（97.16%）和地下鞘氨醇单胞菌 NBRC 109814（96.74%）。主要脂肪酸（占总脂肪酸的>5%）为 C18:1ω7c、C14:0 2-OH、C16:1ω7c/iso C15:0 2-OH、C17:1ω6c 和 C16:0。主要类脂醌为 Q-10。主要多胺为亚精胺。主要极性脂为神经酰胺糖脂和双磷脂酰甘油。菌株 SKLS-A10 的 DNA G+C 含量为 65.9mol%。基于多相分类研究的证据，菌株 SKLS-A10 代表了鞘氨醇单胞菌属的一个新种，建议将其命名为 Sphingobiumaquiterrae sp. nov.。模式菌株为 SKLS-A10（=DSM 106441=NCAIM B. 02634）。
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