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Int J Syst Evol Microbiol. 2016 Oct;66(10):4112-4117. doi: 10.1099/ijsem.0.001320. Epub 2016 Jul 21.

Aurantimonas endophytica sp. nov., a novel endophytic bacterium isolated from roots of Anabasis elatior (C. A. Mey.) Schischk.

Author information

1
1​State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China.
2
1​State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China 2​College of Life Science, Liaoning Normal University, Dalian 116029, PR China.
3
2​College of Life Science, Liaoning Normal University, Dalian 116029, PR China.
4
3​China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China.
5
4​Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China.
6
5​Life Science College, Southwest Forestry University, Kunming 650224, PR China 6​Kunming Xianghao Technology Co., Ltd, Kunming 650204, PR China.
7
4​Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China 1​State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China.

Abstract

An orange-coloured, aerobic, motile, short-rod-shaped bacterial strain, designated EGI 6500337T, was isolated from the surface-sterilized root of a halophyte, Anabasis elatior (C. A. Mey.) Schischk, collected from Urumqi, Xinjiang province, north-west China. Growth occurred at 5-35 °C (optimum 30 °C), at pH 6.0-9.0 (optimum pH 7.0) and in the presence of 0-6 % (w/v) NaCl (optimum 0-1 %). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain EGI 6500337T formed a distinct lineage in the cluster that comprised the genera Aurantimonas and Aureimonas in the family Aurantimonadaceae. The 16S rRNA gene sequence of strain EGI 6500337T shared highest similarity with those of Aurantimonas coralicida DSM 14790T (97.15 %) and Aurantimonas manganoxydans DSM 21871T (97.15 %). Strain EGI 6500337T contained Q-10 as the dominant isoprenoid quinone. The major cellular fatty acids were C18 : 1ω7c and C19 : 0ω8c cyclo. The polar lipid profile of strain EGI 6500337T contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine and phosphatidylethanolamine as major components, similarly to members of the genus Aurantimonas. The DNA G+C content of strain EGI 6500337T was 66.8 mol%. The level of DNA-DNA relatedness between strain EGI 6500337T and Aurantimonas coralicida DSM 14790T was 24.7±2.9 %. On the basis of the phylogenetic analysis, chemotaxonomic data and phenotypic characteristics, strain EGI 6500337T represents a novel species of the genus Aurantimonas, for which the name Aurantimonas endophytica sp. nov. is proposed. The type strain is EGI 6500337T (=KCTC 52296T=CPCC 100904T).

PMID:
27453213
DOI:
10.1099/ijsem.0.001320
[Indexed for MEDLINE]

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