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Int J Syst Evol Microbiol. 2018 Aug;68(8):2659-2663. doi: 10.1099/ijsem.0.002905. Epub 2018 Jul 3.

Nesterenkonia endophytica sp. nov., isolated from roots of Glycyrrhiza uralensis.

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1​Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi 830011, PR China.
2​Kunming Medical University Haiyuan College, Kunming 650106, PR China.
3​Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China.
4​Biology Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
5​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.
6​Bioproducts Research Chair, Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.


A Gram-positive and non-motile actinobacterium, designated strain EGI 60016T, was isolated from healthy roots of Glycyrrhiza uralensis F. collected from Xinyuan County, Xinjiang Province, China. The 16S rRNA gene sequence of strain EGI 60016T was found to show 97.5 and 97.3 % sequence similarities to Nesterenkonia rhizosphaerae EGI 80099T and Nesternkonia massiliensis NP1T, respectively. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain EGI 60016T formed a distinct clade with N. rhizosphaerae EGI 80099T and N. massiliensis NP1T. The polar lipids detected for strain EGI 60016T were diphosphatidylglycerol, phosphatidylcholine, phosphatidylglycerol, phosphatidylinositol, an unidentified glycolipid, an unidentified lipid and an unidentified phospholipid. The DNA G+C content was determined to be 64.1 mol%. Other chemotaxonomic features of strain EGI 60016T included MK-7, MK-8 and MK-9 as the respiratory quinones, and anteiso-C15 : 0 and anteiso-C17 : 0 as the major fatty acids. Based on the results of the phylogenetic analysis supported by morphological, physiological, chemotaxonomic and other differentiating phenotypic characteristics, strain EGI 60016T is considered to represent a novel species of the genus Nesterenkonia, for which the name Nesterenkonia endophytica sp. nov. is proposed. The type strain is EGI 60016T (=CCTCC AB 2017176T=NBRC 112398T).


Glycyrrhiza uralensis F.; Nesterenkonia endophytica sp. nov.; endophytic

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