title: Novosphingobium endophyticum sp. nov. isolated from roots of Glycyrrhiza uralensis.
abstract: A novel Gram-staining-negative, non-motile, rod-shaped and aerobic bacterial strain, designated EGI 60015(T), was isolated from healthy roots of Glycyrrhiza uralensis F. collected from Yili County, Xinjiang Province, Northwest China. The 16S rRNA gene sequence of strain EGI 60015(T) was found to show 97.6% sequence similarity with Novosphingobium pentaromativorans US6-1(T). The phylogenetic analysis based on 16S rRNA gene sequences showed that the strain formed a clade with N. pentaromativorans US6-1(T) in the neighbor-joining tree. Q-10 was identified as the respiratory quinone of strain EGI 60015(T). The major fatty acids were summed feature 8 (C18:1 ω6c and/or C18:1 ω7c; 55.04%), summed feature 4 (C17:1 anteiso B and/or iso I; 18.34%) and summed feature 3 (C16:1 ω6c and/or C16:1 ω7c; 8.53%). The polar lipids detected were phosphatidylethanolamine, phosphatidylmethylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine and sphingoglycolipids. The DNA G+C content of strain EGI 60015(T) was determined to be 66.6 mol%. The genomic DNA relatedness value between EGI 60015(T) and N. pentaromativorans US6-1(T) (54%) was below the 70% limit for species identification. Based on the result of the molecular studies supported by its morphological, physiological, chemotaxonomic and other differentiating phenotypic characteristics, strain EGI 60015(T) was considered to represent a novel species within the genus Novosphingobium, for which the name Novosphingobium endophyticum sp. nov. is proposed. The type strain is EGI 60015(T) (=CGMCC 1.15095(T) = KCTC 42486(T) = DSM 29948(T)).
authors.affiliation: Kunming Medical University Haiyuan College, Kunming, 650106, People's Republic of China.
authors.forename: Yan-Qiong
authors.initials: YQ
authors.lastname: Li
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.forename: Yan-Qing
authors.initials: YQ
authors.lastname: Duan
authors.forename: Salam
authors.initials: S
authors.lastname: Nimaichand
authors.forename: Jian-Wei
authors.initials: JW
authors.lastname: Guo
authors.forename: Rui
authors.initials: R
authors.lastname: Gao
authors.forename: Wen-Jun
authors.initials: WJ
authors.lastname: Li
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D002681:China; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D029882:Glycyrrhiza uralensis / Q000382:microbiology*; D010802:Phylogeny; D018517:Plant Roots / Q000382:microbiology*; D011809:Quinones / Q000032:analysis; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D013045:Species Specificity; D042301:Sphingomonadaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D011809:Quinones; D012336:RNA, Ribosomal, 16S