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用生物和化学杀虫剂处理的土壤中微生物群体结构和代谢功能的改变

Renwen Zheng¹, Jun Peng¹, Qianqian Li¹

¹School of Plant Protection, Anhui Agricultural University, Hefei 230036, China; Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, Hefei 230036, China.

Pesticide biochemistry and physiology

|February 27, 2025

概括

生物杀虫剂Metarhizium anisopliae对土壤微生物和营养循环有好处,与化学杀虫剂伊米达克洛普里德和埃玛丁酸盐不同. 这项研究强调了M. anisopliae.

科学领域:

土壤微生物学与生态学
生物害虫控制生物害虫控制
环境科学环境科学

背景情况:

昆虫病原菌为化学杀虫剂提供了环保的害虫控制替代品.
与化学杀虫剂相比,对它们对土壤生态系统的影响的了解有限.
土壤健康对于生态系统的运行和农业的可持续性至关重要.

研究的目的:

为了比较Metarhizium anisopliae (生物) 和imidacloprid (IMI) 和emamectin benzoate (EMB) (化学) 杀虫剂对土壤微生物群落的影响.
评估对土壤代谢功能,土壤生物化学和抗生素耐药性基因 (ARG) 丰富性的影响.
评估生物与化学农药应用对土壤健康的生态影响.

主要方法:

在土壤样本中使用Metarhizium anisopliae,imidacloprid (IMI) 和emamectin benzoate (EMB).
使用分子技术分析细菌和真菌社区结构.
测量与循环相关的土壤酶活动.
代谢基因组学分析以评估代谢途径和ARG.

主要成果:

化学杀虫剂 (IMI,EMB) 减少了Actinobacteriota和改变了真菌群落,包括潜在的病原体.
M. anisopliae没有显著改变细菌种群,但对循环酶活动产生了积极影响.
IMI治疗减少了碳和的代谢途径,而M. anisopliae增强了土壤肥沃性的关键酶.
化学农药改变了ARG,而M. anisopliae对ARG和毒性因子的影响很小.

结论:

与化学杀虫剂相比,Metarhizium anisopliae对土壤生态具有明显较少的有害和潜在的有益影响.
化学农药对土壤微生物的结构,功能和生化过程产生负面影响.
像M. anisopliae这样的生物防治剂代表了更可持续的昆虫害虫管理方法,保护土壤健康.

关键词:

化学杀虫剂是一种化学杀虫剂.代谢功能功能代谢功能甲二氧化 (Metarhizium anisopliae) 是一种含有甲的物质.微生物社区结构是微生物的社区结构.土壤生态学土壤生态学

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