Document Detail


Identification and characterization of a novel Bacillus subtilis strain with potent antifungal activity of a flagellin-like protein.
MedLine Citation:
PMID:  23775786     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The filamentous fungus Botrytis cinerea is an important agricultural pathogen affecting a wide range of cultivated plants. Since World War II, chemical fungicides have been the go-to method for agricultural pathogen control. However, the potential adverse environmental and health effects of these chemicals have led to an increasing demand for alternative methods of pathogen control, including biological control agents. In this study, we identified a bacterial isolate with strong antagonistic activity against B. cinerea. An analysis of the 16S rRNA gene sequence for this isolate identified it as a novel strain of Bacillus subtilis. Culture media from this isolate were harvested and fractionated using ion exchange and gel filtration chromatography. The fraction exhibiting the highest level of antifungal activity was identified, and its sequence determined by electrospray tandem mass spectrometry had significant similarity to flagellin. This flagellin-like protein was exogenously expressed in Escherichia coli, and screened for antifungal activity against B. cinerea. This flagellin-like protein demonstrated clear antifungal activity of inhibiting B. cinerea growth.
Authors:
Jian Jun Ren; Guang Lu Shi; Xiao Qin Wang; Jing Guo Liu; You Nian Wang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-6-18
Journal Detail:
Title:  World journal of microbiology & biotechnology     Volume:  -     ISSN:  1573-0972     ISO Abbreviation:  World J. Microbiol. Biotechnol.     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-6-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9012472     Medline TA:  World J Microbiol Biotechnol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
College of Forestry, Beijing Forestry University, Beijing, 100083, China.
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