Cheng Yue, Fu Qian, Xu Junjia, Niu Xinhua, Liu Lin, Wang Jiaqi, Quan Jingwen, Yu Qingyue, Chi Baoyan, Li Haitao, Liu Rongmei
Heilongjiang Green Food Science Research Institute, Harbin 150023, China.
College of Life Sciences, Northeast Agricultural University, Harbin 150030, China.
Microorganisms. 2025 Jul 19;13(7):1698. doi: 10.3390/microorganisms13071698.
Prometryn and acetochlor are herbicides used to control weeds in farmlands and other areas. They enter the soil through direct application, residual accumulation in crops, and atmospheric deposition. The pollution of their residues in the environment has attracted people's attention. Bioremediation is one of the main methods to solve such problems. In this study, the effects of prometryn and acetochlor-degrading strain NM-1 on soil enzymes, soil microbial communities, and physiological indexes of soybean seedlings during soil remediation were studied, and the relationship between them was discussed. The results showed that 81.54% of prometryn (50 mg·L) and 89.47% of acetochlor (50 mg·L) were degraded within 15 days after NM-1 inoculation in soil. NM-1 positively affected soil enzyme activities and soil microbial communities, and the abundance of beneficial bacteria in soil increased. More importantly, the inoculation of strain NM-1 under prometryn and acetochlor stress significantly increased plant height, root length, root volume, water content, chlorophyll concentration, and root activity of soybean. The results of these studies showed that the NM-1 strain showed significant potential in bioremediation in order to provide technical support for solving the problem of prometryn and acetochlor pollution.
扑草净和乙草胺是用于控制农田及其他区域杂草的除草剂。它们通过直接施用、在作物中的残留积累以及大气沉降进入土壤。其残留物对环境的污染已引起人们的关注。生物修复是解决此类问题的主要方法之一。本研究考察了扑草净和乙草胺降解菌株NM-1在土壤修复过程中对土壤酶、土壤微生物群落以及大豆幼苗生理指标的影响，并探讨了它们之间的关系。结果表明，在土壤中接种NM-1后15天内，50 mg·L的扑草净降解率为81.54%，50 mg·L的乙草胺降解率为89.47%。NM-1对土壤酶活性和土壤微生物群落产生积极影响，土壤中有益菌的丰度增加。更重要的是，在扑草净和乙草胺胁迫下接种菌株NM-1显著提高了大豆的株高、根长、根体积、含水量、叶绿素浓度和根系活力。这些研究结果表明，NM-1菌株在生物修复方面具有显著潜力，可为解决扑草净和乙草胺污染问题提供技术支持。
