浙江农业学报2025，Vol.37Issue(3)：521-529,9.DOI:10.3969/j.issn.1004-1524.20240168
铜-菲复合污染对分蘖期水稻根系生理特性和污染物积累的影响
Effects of combined copper-phenanthrene pollution on physiological characteristics and pollu-tant accumulation of rice roots at tillering stage
摘要
Abstract
Soil pollution often involves a combination of heavy metals and polycyclic aromatic hydrocarbon,pollutants enter the plant through the root system,seriously endangering the safety of crop production.In order to study the effect of compound pollution on crops,pot experiment was carried out to analyze the effects of single additions of phe-nanthrene and copper,as well as their combined addition,on rice physiological and biochemical properties and cop-per and phenanthrene accumulation in rice roots at tillering stage.The results showed that the electrolyte permeability of rice under combined pollution of phenanthrene and copper was 16.08 percentage points higher than phenanthrene treatment;the activities of peroxidase and catalase in rice root were significantly(P＜0.05)decreased under the pollution treatment,but there was no significant difference between combined pollution treatment and single pollution treatment.The content of phenanthrene in rice roots and rhizosphere under combined pollution of copper and phenan-threne were 0.59 mg·kg-1 and 6.51 mg·kg-1,respectively,which were significantly(P＜0.05)higher than those in phenanthrene treatment(0.01 mg·kg-1 and 3.63 mg·kg-1).The content of copper in the rice roots was ranged from 48.28 to 74.18 mg·kg-1,there was no significant difference in copper content between the combined pollution treatment and the single pollution treatment.In conclusion,copper-phenanthrene combined pollution did not enhance the inhibition of antioxidant enzyme activities in rice,significantly increased the content of phenanthrene in rice root and rhizosphere soil,and aggravated phenanthrene pollution.关键词
水稻/迁移转化/铜/菲/复合污染Key words
rice/transport and transfer/copper/phenanthrene/combined pollution分类
农业科技引用本文复制引用
宋欣录,范书红,武桄旗,展梦琪,侯倩,李明月,徐艳..铜-菲复合污染对分蘖期水稻根系生理特性和污染物积累的影响[J].浙江农业学报,2025,37(3):521-529,9.基金项目
国家自然科学基金(42177028) （42177028）
山东省高等学校青创人才引育计划(DC2000000961) （DC2000000961）
