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Trichoderma viride F7 improves peanut performances while remediating cadmium-contaminated soil with microplastics

文献类型： 外文期刊

作者： Song, Xin 1 ; Jin, Jianpeng 1 ; Yin, Hongliang 1 ; Wang, Tingjuan 1 ; Zong, Haiying 1 ; Wang, Fangli 1 ; Liu, Jun 1 ; Huang, Xiaoli 2 ; Wang, Bin 3 ; Chai, Chao 1 ; Li, Zhi 1 ; Liu, Dongsheng 4 ; Wang, Xuexia 4 ; Song, Ningning 1 ;

作者机构： 1.Qingdao Agr Univ, Sch Resources & Environm, Qingdao 266109, Peoples R China

2.Qingdao Agr Univ, Cent Lab, Qingdao 266109, Peoples R China

3.Xinjiang Acad Agr Sci, Inst Soil Fertilizer & Agr Water Saving, Urumqi 830091, Peoples R China

4.Beijing Agr Forestry Acad Sci, Inst Plant Nutr & Resources, Beijing 100097, Peoples R China

关键词： bioremediation; compound pollution; emerging pollutant; heavy metal; polyethylene; soil health

期刊名称：PEDOSPHERE （ 影响因子：7.3； 五年影响因子：6.2 ）

ISSN： 1002-0160

年卷期： 2024 年 34 卷 5 期

页码：

收录情况： SCI

摘要： Microplastics (MPs) and cadmium (Cd) in soil have serious negative impacts on plant growth. As a bioremediator, Trichoderma viride may modulate the impacts of MPs and/or Cd on plant growth and heavy metal uptake. In this study, T. viride F7 was used to treat Cd-contaminated soil with and without the presence of polylactic acid MPs to investigate its effects on peanut growth, Cd uptake efficiency, and soil properties. Results showed that F7 increased soil pH, dissolved organic carbon, cation exchange capacity, microbial biomass nitrogen, and microbial biomass carbon, which resulted in increases of 2.10%-19.83% in peanut biomass and mitigated the negative effects of MPs and Cd on peanut growth. Trichoderma viride F7 reduced the soil bioavailable Cd and plant Cd concentrations by 16.68%-34.20% and 5.37%-25.84%, respectively. Regression path analysis showed that F7 could improve peanut performances by altering soil properties and reducing peanut Cd concentrations in MP-Cd-contaminated soil. Soil fungal community analysis indicated that the microbial community was altered via F7 inoculation, which antagonized Fusarium and promoted peanut growth. This study reveals the mechanisms of F7 in mitigating Cd contamination in the soil with the presence of MPs, which provides new ideas for managing MP-heavy metal-contaminated soil and improving soil health.

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