Acinetobacter plantarum sp nov isolated from wheat seedlings plant

作者:Du, Juan; Singh, Hina; Yu, Hongshan; Jin, Feng-Xie; Yi, Tae-Hoo*
来源:Archives of Microbiology, 2016, 198(5): 393-398.
DOI:10.1007/s00203-016-1199-3

摘要

Strain THG-SQM11(T), a Gram-negative, aerobic, non-motile, coccus-shaped bacterium, was isolated from wheat seedlings plant in P. R. China. Strain THG-SQM11(T) was closely related to members of the genus Acinetobacter and showed the highest 16S rRNA sequence similarities with Acinetobacter junii (97.9 %) and Acinetobacter kookii (96.1 %). DNA-DNA hybridization showed 41.3 +/- 2.4 % DNA reassociation with A. junii KCTC 12416(T). Chemotaxonomic data revealed that strain THG-SQM11(T) possesses ubiquinone-9 as the predominant respiratory quinone, C-18:1 omega 9c, summed feature 3 (C-16:1 omega 7c and/or C-16:1 omega 6c), and C-16:0 as the major fatty acids. The major polar lipids were found to be diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, and phosphatidylcholine. The DNA G+C content was 41.7 mol %. These data, together with phenotypic characterization, suggest that the isolate represents a novel species, for which the name Acinetobacter plantarum sp. nov. is proposed, with THG-SQM11(T) as the type strain (=CCTCC AB 2015123(T) =KCTC 42611(T)).