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Use of Lentinan and Fluopimomide to Control Cotton Seedling Damping-Off Disease Caused by Rhizoctonia solani

Author

Listed:
  • Shoumin Sun

    (Department of Plant Protection, Shandong Agricultural University, Tai’an 271018, China
    These authors contributed equally to this work.)

  • Haohao Yan

    (Department of Plant Protection, Shandong Agricultural University, Tai’an 271018, China
    These authors contributed equally to this work.)

  • Gang Chen

    (Department of Plant Protection, Shandong Agricultural University, Tai’an 271018, China)

  • Shuai Yang

    (Department of Plant Protection, Shandong Agricultural University, Tai’an 271018, China)

  • Jie Wang

    (Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China)

  • Yuanxue Yang

    (Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan 250100, China)

  • Hongyan Wang

    (Department of Plant Protection, Shandong Agricultural University, Tai’an 271018, China)

Abstract

Lentinan (LNT) is a natural and functional polysaccharide isolated from Lentinus edodes fruiting bodies, which functions in stimulating the plant immune response, improving plant disease resistance and regulating plant growth. This study explores the use of LNT as a plant growth regulator and attractant in cotton production. After treatment with LNT, the content of malondialdehyde (MDA) in cotton seeds decreased, whereas the activities of polyphenol oxidase (PPO), superoxide dismutase (SOD) and peroxidase (POD) in leaves increased significantly. LNT also promoted the growth and development of cotton plants and significantly reduced the incidence of cotton damping-off disease. The relative expression of salicylic acid pathway-related genes in cotton also increased significantly. The prevention mechanism of fluopimomide was also evaluated, and the result showed lower EC 50 values and was effective in controlling cotton seedling disease caused by Rhizoctonia solani in both greenhouse experiments and field trials. The use of LNT and fluopimomide in controlling cotton seedling damping-off disease showed a synergistic effect in field trials. These results will provide a new insight into the agricultural application of LNT as a biological fungicide in the field of biological controls.

Suggested Citation

  • Shoumin Sun & Haohao Yan & Gang Chen & Shuai Yang & Jie Wang & Yuanxue Yang & Hongyan Wang, 2022. "Use of Lentinan and Fluopimomide to Control Cotton Seedling Damping-Off Disease Caused by Rhizoctonia solani," Agriculture, MDPI, vol. 12(1), pages 1-17, January.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:1:p:75-:d:719067
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    Cited by:

    1. Xiao Ran & Hadiatullah Hadiatullah & Zhiguang Yuchi & Xin Yang & Xun Zhu, 2023. "Sustainable Use of Pesticides," Agriculture, MDPI, vol. 13(7), pages 1-3, July.

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