Evaluation of ethylicin as a potential soil fumigant in commercial tomato production in China

文献类型： 外文期刊

第一作者： Li, Wenjing

作者： Li, Wenjing;Ren, Lirui;Li, Qingjie;Zhang, Daqi;Fang, Wensheng;Yan, Dongdong;Li, Yuan;Wang, Qiuxia;Cao, Aocheng;Yan, Dongdong;Li, Yuan;Wang, Qiuxia;Cao, Aocheng;Jin, Xi;Cao, Aocheng

作者机构：

关键词： Ethylicin; Soil fumigant; Soil -borne disease; Soil microbial diversity; Tomato yield

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：10.753； 五年影响因子：10.237 ）

ISSN： 0048-9697

年卷期： 2023 年 854 卷

页码：

收录情况： SCI

摘要： Recent increases in soil-borne plant disease have limited further expansion of some crops produced in protected agri-culture. Soil fumigation effectively minimizes the impact of soil pathogens causing many diseases. We provide the first report of the efficacy of the Chinese fungicide ethylicin as a soil fumigant against the plant pathogens such as Fusarium spp. and Phytophthora spp., and against the plant parasitic nematode Meloidogyne spp. We also examined ethylicin's im-pact on the physicochemical properties of soil, the soil's bacterial and fungal taxonomic composition, the plant growth of tomatoes, the enzyme activity of soil and tomato yield. Ethylicin fumigation significantly decreased the abundance of Fusarium spp. and Phytophthora spp. by 67.7 %-84.0 % and 53.8 %-81.0 %, respectively. It reduced Meloidogyne spp. by 67.2 %-83.6 %. Ethylicin significantly increased the growth of tomato plants and tomato yield by 18.3 %-42.0 %. The soil's ammonium-nitrogen concentration increased significantly in answer to ethylicin fumigation, while nitrate-nitrogen concentration and the activity of soil urease decreased significantly. High-throughput gene sequencing had been used to show that ethylicin cut down the taxonomic soil bacteria diversity and bacterial abundance, but in-creased the soil fungi taxonomic diversity. Some genera of microorganisms increased, such as Firmicutes, Steroidobacter and Chytridiomycota, possibly due to changes in the physicochemical properties of soil that differentially favored their survival. We conclude that ethylicin is efficacious as a soil fumigant and it would be a useful addition to the limited num-ber of soil fumigants currently available.

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