北京师范大学学报（自然科学版）2025，Vol.61Issue(2)：161-169,9.DOI:10.12202/j.0476-0301.2024152
AMF对Cd胁迫下虎尾草生长、生理特性及Cd积累的影响
Arbuscular Mycorrhizal Fungi impact on Chloris virgata growth,physiological characteristics and Cd accumulation under Cd stress
摘要
Abstract
Chloris virgata was used as the host plant and Rhizoctonia solani and Aspergillus niger as mycorrhizal agents,to mimic cadmium pollution in greenhouse pots.Arbuscular Mycorrhizal Fungi(AMF)impacts on growth,physiological characteristics,and cadmium accumulation of C.tigris under cadmium stress were studied.When not inoculated with AMF,low concentrations of cadmium(5 mg·kg-1)promoted C.tigris growth,but high concentrations(50 mg·kg-1)inhibited growth.With increasing Cd2+concentrations,antioxidant enzyme activity(POD)and root vigor of C.tigris increased and then decreased,contents of soluble sugars,soluble proteins,chlorophyll,and malondialdehyde all increased.In the absence of cadmium stress,AMF promoted C.tigris growth,to increase the contents of POD and soluble sugar.Under cadmium stress,cadmium concentration in C.tigris was greater than the aboveground.After AMF inoculation,the aboveground cadmium concentration coefficients of C.tigris were enhanced.Within a certain cadmium concentration range,AMF increased the root vitality of C.tigris,POD contents and photosynthetic pigments,enhanced C.tigris tolerance to cadmium.This work will be helpful for the remediation of soil cadmium pollution.关键词
虎尾草/丛枝菌根真菌/Cd胁迫/生长特性/生理特性/Cd积累Key words
Chloris virgata/Arbuscular Mycorrhizal Fungi/cadmium stress/growth characteristics/physiological characteristics/cadmium accumulation分类
环境科学引用本文复制引用
张粉果,霍文涛,张三庆,梁芙蓉,徐冰,王永吉..AMF对Cd胁迫下虎尾草生长、生理特性及Cd积累的影响[J].北京师范大学学报（自然科学版）,2025,61(2):161-169,9.基金项目
国家自然科学基金资助项目(41801027,31700434) （41801027,31700434）
山西省基础研究计划项目(202203021211250,202203021211252) （202203021211250,202203021211252）
山西省留学回国人员科技活动择优资助项目(20230025,20230027) （20230025,20230027）
山西省回国留学人员科研资助项目(2023-110,2024-089) （2023-110,2024-089）
