Actinobacteria associated with Glycyrrhiza inflata Bat. are diverse and have plant growth promoting and antimicrobial activity
文献类型： 外文期刊
作者： Zhao, Ke 1 ; Li, Jing 1 ; Zhang, Xiaoyue 1 ; Chen, Qiang 1 ; Liu, Maoke 2 ; Ao, Xiaolin 1 ; Gu, Yunfu 1 ; Liao, Decong 1 ; X 1 ;
作者机构： 1.Sichuan Agr Univ, Dept Microbiol, Coll Resource & Environm Sci, Yaan 625000, Peoples R China
2.Sichuan Acad Agr Sci, Rice & Sorghum Res Inst, Ctr Biotechnol, Luzhou 646100, Peoples R China
3.Zhejiang Agr & Forestry Univ, Sch Environm & Resource Sci, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, Linan 311300, Peoples R China
4.Univ Helsinki, Ecosyst & Environm Res Programme, FIN-00014 Helsinki, Finland
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2018 年 8 卷
页码：
收录情况： SCI
摘要： Many of the plant associated microbes may directly and indirectly contribute to plant growth and stress resistance. Our aim was to assess the plant growth-promoting and antimicrobial activities of actinobacteria isolated from Glycyrrhiza inflata Bat. plants to find strains that could be applied in agricultural industry, for example in reclaiming saline soils. We isolated 36 and 52 strains that showed morphological characteristics of actinobacteria from one year old and three year old G. inflata plants, respectively. Based on 16S rRNA gene sequence analysis, the strains represented ten actinobacterial genera. Most of the strains had plant growth promoting characteristics in vitro, tolerated 200 mM NaCl and inhibited the growth of at least one indicator organism. The eight selected Streptomyces strains increased the germination rate of G. inflata seeds under salt stress. In addition, the four best seed germination promoters promoted the growth of G. inflata in vivo. The best promoters of G. inflata growth, strains SCAU5283 and SCAU5215, inhibited a wide range of indicator organisms, and may thus be considered as promising candidates to be applied in inoculating G. inflata.
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