Author:
Li Xinchun,Hou HuiHui,Liu He,Wang Hancheng,Cai Liuti,An Mengnan,Zhang Chong,Wu Yuanhua
Abstract
Tobacco target spot disease is caused by Rhizoctonia solani AG-3 TB, which causes serious harm to the quality and yield of tobacco. In this study, thin layer chromatography (TLC), high performance liquid chromatography (HPLC), infrared absorption spectroscopy (IR), and nuclear magnetic resonance spectroscopy (NMR) were used to purify and identify the potential phytotoxin produced by R. solani AG-3 TB. The result indicated that the purified toxin compound was 3-methoxyphenylacetic acid (3-MOPAA) (molecular formula: C9H10O3). The exogenous purified compound 3-MOPAA was tested, and the results revealed that 3-MOPAA can cause necrosis in tobacco leaves. 3-MOPAA is a derivative of phenylacetic acid (PAA), which should be produced by specific enzymes, such as hydroxylase or methylase, in the presence of PAA. These results enrich the research on the pathogenic phytotoxins of R. solani and provide valuable insights into the pathogenic mechanism of AG-3 TB.
Funder
Research and Application of Main Leaf Spot Disease Monitoring, Early Warning and Green Control Technology
National Natural Science Foundation of China
Subject
Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science
Cited by
7 articles.
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