Paenibacillus rhizophilus sp. nov., a nitrogen-fixing bacterium isolated from the rhizosphere of wheat (Triticum aestivum L.)
文献类型： 外文期刊
作者： Ripa, Farhana Alam 1 ; Tong, Shuai 1 ; Cao, Wei-dong 1 ; Wang, En Tao 2 ; Wang, Tianyu 1 ; Liu, Hong Can 4 ; Gao, Jun- 1 ;
作者机构： 1.Chinese Acad Agr Sci, Minist Agr & Rural Affairs, Key Lab Microbial Resources, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
2.Inst Politecn Nacl, Dept Microbiol, Escuela Nacl Ciencias Biol, Mexico City 11340, DF, Mexico
3.Beijing Acad Agr & Forestry, Beijing Agrobiotechnol Res Ctr, Beijing Key Lab Agr Genet Resources & Biotechnol, Beijing 100097, Peoples R China
4.Chinese Acad Sci, Inst Microbiol, Beijing 100101, Peoples R China
关键词： Paenibacillus rhizophilus sp. nov.; rhizosphere; wheat
期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）
ISSN： 1466-5026
年卷期： 2019 年 69 卷 12 期
页码：
收录情况： SCI
摘要： A novel Gram-stain-variable, endospore-forming, motile, rod-shaped, facultative aerobic bacterium, designated 7197(T), was isolated from rhizosphere soil of wheat (Triticum aestivum L.) collected from Yakeshi County, Inner Mongolia, PR China. This isolate was found to have the highest 16S rRNA gene sequence similarity to Paenibacillussabinae T27(T) (98.0 %), followed by Paenibacillussophorae S27(T) (97.9 %) and Paenibacillusforsythiae T98(T) (97.7 %). To ascertain the genomic relatedness of this strain to its phylogenetic neighbours, its genome sequence was determined. The average nucleotide identity values of genome sequences between the novel isolate and the type strains of related species P. sabinae T27(T), P. sophorae S27(T) and P. forsythiae T98(T) were 87.9 %, 85.8 and 83.9 %, respectively. The polar lipids contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, four unidentified aminophospholipids and one unidentified aminolipid. The major cellular fatty acids were anteiso-C-15:0 (56.3 %), C-16:0 (15.7 %) and iso-C-15:0 (14.1 %).The genome size of strain 7197(T) was 5.21 Mb, comprising 4879 predicted genes with a DNA G+C content of 51.9 mol%. Menaquinone-7 was reported as the major respiratory quinone. The diamino acid in the cell-wall peptidoglycan was found to be meso-diaminopimelic acid. Based on phylogenetic, genomic, chemotaxonomic and phenotypic characteristics, strain 7197(T) was classified as a novel species within the genus Paenibacillus, for which the name Paenibacillus rhizophilus sp. nov. is proposed. The type strain of Paenibacillus rhizophilus is 7197(T) (= DSM 103168(T) =CGMCC 1.15699(T)).
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