中药挥发油联用二氢叶吩铁对稻瘟病菌的抑菌研究

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Research on the Antibacterial Activity of the Volatile Oil of Traditional Chinese Medicine Combined with Iron Chlorine e6 against Magnaporthe oryzae

WANG Ziyu， DU Jiasijin， ZHOU Nan， CHEN Jiang Schoolof Pharmacy/School of Modern Chinese Medicine Industry，Chengdu Universityof Traditional ChineseMedicine，Chengdu611137，China

Abstract： To develop novel green，organic， highly efficient and low-toxic fungicides for the prevention and control of rice blast. The research innovatively takes view from the perspective of strengthening the body and eliminating pathogenic factors of traditional Chinese medicine in clinical treatment. A compound agent was formed by combining the volatile oils of four dampness-drying and dampness-resolving traditional Chinese medicines with the plant growth regulator Iron Chlorine e6. The control eficacy was explored through indoor toxic medium bacteriostasis tests and field experiments. Results of field trials indicated that the control efficacy of the Litsea cubeba compound agent at 796.55g⋅a⋅i/hm2 ，Pogostemoncablin compound agent at 1， 155.60g∙a∙i/hm2 ，Xanthiumstrumarium compound agent at 1， 044.00g∙a∙i/hm2 ，and Coptis chinensis compound agent at 1， 557.12g⋅a⋅i/hm2 ，reached 95.43% ， 92.32% ， 75.67% ，and 68.88% ，respectively. The volatile oils of L. cubeba and P.cablin exhibited remarkable synergistic effect with Iron Chlorine e6. Under the same concentration，the control efficacy of the compound agent was superior to that of the chemical fungicide isoprothiolane. The research findings offer certain references for the subsequent in-depth study of traditional Chinese medicine-derived pesticides.

Key words： volatile oil of traditional Chinese medicine; Iron Chlorine e6；rice blast； agricultural disease control

稻瘟病由稻瘟病原菌（Magnaportheoryzae）引起，是发病情况最复杂、潜在危害最大的水稻真菌性病害之一，严重威胁我国粮食安全[]。（剩余6849字）