Use of Lentinan and Fluopimomide to Control Cotton Seedling Damping-Off Disease Caused by Rhizoctonia solani
文献类型： 外文期刊
作者： Sun, Shoumin 1 ; Yan, Haohao 1 ; Chen, Gang 1 ; Yang, Shuai 1 ; Wang, Jie 2 ; Yang, Yuanxue 3 ; Wang, Hongyan 1 ;
作者机构： 1.Shandong Agr Univ, Dept Plant Protect, Tai An 271018, Shandong, Peoples R China
2.Chinese Acad Agr Sci, Tobacco Res Inst, Key Lab Tobacco Pest Monitoring Controlling & Int, Qingdao 266101, Peoples R China
3.Shandong Acad Agr Sci, Inst Ind Crops, Jinan 250100, Peoples R China
关键词： cotton damping-off disease; lentinan; Rhizoctonia solani; environmentally friendly biopesticide; defensive enzymes
期刊名称：AGRICULTURE-BASEL （ 影响因子：2.925； 五年影响因子：3.044 ）
ISSN：
年卷期： 2022 年 12 卷 1 期
页码：
收录情况： SCI
摘要： 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 EC50 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.
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