Efficacy of Vomitoxin as Elicitor for Controlling Soilborne Diseases on Potato Plants

WEI Xuhong; FENG Xu; HE Fumeng; XU Yongqing; LI Jianying; XIAO Mengmeng; LI Li; LI Cuiting; YUAN Qiang; LI Fenglan

doi:10.19303/j.issn.1008-0384.2023.03.009

Volume 38 Issue 3

Mar. 2023

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Article Navigation > Fujian Journal of Agricultural Sciences > 2023 > 38(3): 329-338

WEI X H, FENG X, HE F M, et al. Efficacy of Vomitoxin as Elicitor for Controlling Soilborne Diseases on Potato Plants [J]. Fujian Journal of Agricultural Sciences，2023，38（3）：329−338 doi: 10.19303/j.issn.1008-0384.2023.03.009

Citation:

WEI X H, FENG X, HE F M, et al. Efficacy of Vomitoxin as Elicitor for Controlling Soilborne Diseases on Potato Plants [J]. Fujian Journal of Agricultural Sciences，2023，38（3）：329−338 doi: 10.19303/j.issn.1008-0384.2023.03.009

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Efficacy of Vomitoxin as Elicitor for Controlling Soilborne Diseases on Potato Plants

doi: 10.19303/j.issn.1008-0384.2023.03.009

College of Life Sciences, Northeast Agricultural University, Harbin, Heilongjiang　150006, China

Received Date: 2022-11-08
Rev Recd Date: 2022-11-30

Available Online: 2023-02-08

Publish Date: 2023-03-28

Abstract

Abstract

Objective Safety and efficacy of applying vomitoxin to control soilborne diseases on potato plants were investigated. Method In a laboratory experiment, vomitoxin (aka deoxynivalenol, DON) was applied on the Atlantic variety potato to determine the disease resistance to and physiological alternations induced by some major soilborne pathogens on the plant for treatment optimization. Result Within a range of concentrations, DON caused no significant ill-effects on the potato plants. A treatment of it at 5 ng·mL⁻¹ for 4 h effectively inhibited the spread of bacterial wilt caused by Ralstonia solanacearum, soft rots by Erwinia chrysanthemi, or scabies by Streptomyces scabies on the leaves, and at a dosage of 3 ng·mL⁻¹, the growth of dry rot pathogen Fusarium sambucinum was retarded. The strongest DON-induced resistance against the bacterial wilt or dry and soft rots of the plant was found at 25 ℃ and pH 7, and against scabies at pH 9. With an exposure of 12 000 lx light, the DON-induction on the plants reached the greatest efficacy against the dry rots. Whereas, under 15 000 lx, that could be achieved on the bacterial wilt, soft rots, and scabies. A DON treatment significantly raised the SOD activity and lignin content but lowered MDA in the leaves. Conclusion Application of DON as an elicitor in low concentrations exerted no adverse effect but significantly inhibit some major soilborne diseases on potato plants. A potential venue for preventing and treating the diseases seemed merit further investigation.
- DON,
- elicitor,
- soilborne diseases,
- optimization,
- physiological indices

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References(21)

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