Actinobacteria associated with Glycyrrhiza inflata Bat. are diverse and have plant growth promoting and antimicrobial activity

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Zhao , K , Li , J , Zhang , X , Chen , Q , Liu , M , Ao , X , Gu , Y , Liao , D , Xu , K , Ma , M , Yu , X , Xiang , Q , Chen , J , Zhang , X & Penttinen , P 2018 , ' Actinobacteria associated with Glycyrrhiza inflata Bat. are diverse and have plant growth promoting and antimicrobial activity ' , Scientific Reports , vol. 8 , 13661 . https://doi.org/10.1038/s41598-018-32097-8

Title: Actinobacteria associated with Glycyrrhiza inflata Bat. are diverse and have plant growth promoting and antimicrobial activity
Author: Zhao, Ke; Li, Jing; Zhang, Xiaoyue; Chen, Qiang; Liu, Maoke; Ao, Xiaolin; Gu, Yunfu; Liao, Decong; Xu, Kaiwei; Ma, Monggeng; Yu, Xiumei; Xiang, Quanju; Chen, Ji; Zhang, Xiaoping; Penttinen, Petri
Contributor: University of Helsinki, Environmental Sciences
Date: 2018-09-12
Language: eng
Number of pages: 13
Belongs to series: Scientific Reports
ISSN: 2045-2322
URI: http://hdl.handle.net/10138/246112
Abstract: 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.
Subject: TRADITIONAL CHINESE MEDICINE
ENDOPHYTIC STREPTOMYCES
MICROBIAL ENDOPHYTES
NATURAL-PRODUCTS
WHEAT ROOTS
SALT STRESS
SP-NOV
BACTERIA
LICORICE
BIOCONTROL
1183 Plant biology, microbiology, virology
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