NDLI: Isolation and identification of endophytic bacteria from root tissues of Salvia miltiorrhiza Bge. and determination of their bioactivities

Content Provider	Springer Nature Link
Author	Duan, Jia Li Li, Xiao Jun Gao, Jin Ming Wang, Dong Sheng Yan, Yan Xue, Quan Hong
Copyright Year	2013
Abstract	Endophytic bacteria are microorganisms that live in host plants, but do not cause diseases to the hosts. This study examined the occurrence, distribution, growth-promoting and antifungal activities of endophytes in the root of Salvia miltiorrhiza Bge. Six endophytic bacterial strains, which belong to genera of Pseudomonas, Rhizobium, Bacillus and Novosphingobium, were isolated from the root of healthy S. miltiorrhiza. Cell suspension (approx. 10$^{9}$ cell · ml$^{−1}$) of two isolates and cell-free fermentation filtrate of four isolates substantially promoted the growth of hypocotyl and radicle of muskmelon seeds. The cell-free fermentation filtrate of six isolates had no inhibiting effect on tested pathogenic fungi, namely Fusarium solani, F. oxysporum f. sp. vasinfectum and F. oxysporum. Six compounds were isolated from one of the six endophytic bacteria, namely, Bacillus aryabhattai, and two of these compounds displayed certain antifungal activity against three tested S. miltiorrhiza pathogens. Our work indicates that endophytic bacteria occur in the root of S. miltiorrhiza, and that associated bacterial isolates have growth-promoting effect on muskmelon seeds and are expected to be a potential source for bioactive metabolites.
Starting Page	1501
Ending Page	1512
Page Count	12
File Format	PDF
ISSN	15904261
Journal	Annals of Microbiology
Volume Number	63
Issue Number	4
e-ISSN	18692044
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-02-16
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Salvia miltiorrhiza Bge. Endophytic bacteria Pseudomonas Rhizobium Bacillus Microbiology Microbial Genetics and Genomics Microbial Ecology Fungus Genetics Medical Microbiology Applied Microbiology
Content Type	Text
Resource Type	Article
Subject	Applied Microbiology and Biotechnology

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