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- Title
The Endochitinase of Clonostachysrosea Expression in Bacillus amyloliquefaciens Enhances the Botrytis cinerea Resistance of Tomato.
- Authors
Zheng, Yangyang; Wang, Xudong; Liu, Siyuan; Zhang, Kewei; Cai, Zhibo; Chen, Xiuling; Zhang, Yao; Liu, Jiayin; Wang, Aoxue
- Abstract
To investigate whether the <italic>ech42</italic> gene in <italic>Clonostachysrosea</italic> can improve the biocontrol efficacy of <italic>Bacillus amyloliquefaciens</italic> and its molecular mechanism. Compared to the wild type, the <italic>B. amyloliquefaciens</italic> transformed with the ech42 gene exhibited higher chitinase activity. The <italic>B. amyloliquefaciens</italic>-ech42 also showed significantly higher biocontrol efficiency compared to <italic>Botrytiscinerea</italic> when tomato plants were pre-treated with <italic>B. amyloliquefaciens-</italic>ech42. No significant difference in biocontrol efficiency was observed between the wild type and <italic>B.amyloliquefaciens-</italic>ech42 when tomato plants were first infected by <italic>Botrytiscinerea</italic>. In addition, the activity of the defense-related enzyme polyphenol oxidase, but not superoxide dismutase, was significantly higher in <italic>B. amyloliquefaciens-</italic>ech42 than in the wild type. The ech42 enhances the biocontrol efficiency of <italic>B.amyloliquefaciens</italic> by increasing the capacity of preventative/curative effects in plants, rather than by killing the pathogens.
- Subjects
BACILLUS amyloliquefaciens; BOTRYTIS cinerea; TOMATOES; CHITINASE; SUPEROXIDE dismutase
- Publication
International Journal of Molecular Sciences, 2018, Vol 19, Issue 8, p2221
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms19082221