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Allyl Isothiocyanate in the Volatiles of Brassica juncea Inhibits the Growth of Root Rot Pathogens of Panax notoginseng by Inducing the Accumulation of ROS

Authors :
Wu Jiaqing
Mei Xinyue
Min Yang
Liu Yixiang
Denghong Zuo
Hongbin Liu
Haijiao Liu
Shusheng Zhu
Li Yingbin
Yingwei Su
Huichuan Huang
Source :
Journal of Agricultural and Food Chemistry. 69:13713-13723
Publication Year :
2021
Publisher :
American Chemical Society (ACS), 2021.

Abstract

The cultivation of Panax notoginseng is often seriously hindered by root rot disease caused by the accumulation of soil-borne pathogens. Here, the inhibitory activity of Brassica juncea volatiles on P. notoginseng root rot pathogens was assessed and compounds in volatiles were identified. Furthermore, the antimicrobial activity and mechanism of allyl isothiocyanate (AITC) were deciphered by integrated transcriptome and metabolome analyses. The volatiles of B. juncea showed dose-dependent antimicrobial activity against root rot pathogens. AITC, identified as the main volatile compound, not only significantly inhibited pathogen growth in vitro but also suppressed root rot disease in the field. Integrated transcriptomic and metabolomics analysis revealed that AITC inhibited Fusarium solani by interfering with energy production and induced the accumulation of ROS by decreasing the content of glutathione (GSH). In summary, B. juncea releases AITC to inhibit soil-borne pathogens and could be used as a rotation crop or soil fumigant to alleviate root rot disease.

Details

ISSN :
15205118 and 00218561
Volume :
69
Database :
OpenAIRE
Journal :
Journal of Agricultural and Food Chemistry
Accession number :
edsair.doi...........c77d872eda31a4c63612e876a53ab842
Full Text :
https://doi.org/10.1021/acs.jafc.1c05225