功能内生细菌对作物中邻苯二甲酸酯的消减作用

来源：中国环境科学杂志2024年第11期北京时间：

作者：许淋, 张友爱, 周贤, 秦超, 高彦征

单位：南京农业大学, 土壤有机污染控制与修复研究所, 江苏 南京 210095

摘要：As emerging organic pollutants, phthalate acid esters (PAEs) can accumulate in crops such as vegetables, fruits, grains through absorption and enter the human body via the food chain, posing great threats to human health. PAEs contamination in soil has attracted widespread attention. How to directly reduce PAEs in crops to ensure the safety of agricultural production in polluted areas has been a hot spot and big challenge in agro-environmental field. Endophytic bacteria are living in and symbiotic with crops. It is expected that effective elimination of PAEs in crops can be achieved by isolating and screening endophytic bacteria with PAEs degradation function from crops grown up in PAEs contaminated areas, and colonising them into contaminated crops. In this paper, we analyzed the PAEs contamination differences in various types of crops and their distribution characteristics in different tissues, sorted out the reported endophytic bacterial species with PAEs degradation functions, and compared the effects of the functional endophytic bacteria on PAEs elimination in crops under different colonization methods, so as to reveal the mechanisms, pathways and key factors of PAEs degradation. It was pointed out that the construction and efficacy of composite endophytic flora for degrading co-existing complexed PAEs and endophytic flora with synergistic functions of “pollutant reduction” and “carbon emissions” coupling are the research directions worth attention in the future.

关键词：邻苯二甲酸酯,功能内生细菌,降解途径,定殖

基金资助：国家自然科学基金资助项目(22161132011,U22A20590);江苏省碳达峰碳中和科技创新专项资金资助项目(20220013)