河南农业大学学报2019，Vol.53Issue(2)：161-167,7.
丛枝真菌对镉胁迫小麦光合系统的调节作用
Regulation of arbuscular mycorrhizal fungi on photosynthesis system of wheat under cadmium stress
摘要
Abstract
To investigate the regulation of arbuscular mycorrhizal fungi (AMF) on photosynthesis of wheat under cadmium (Cd) stress,the pot-experiment was carried out with wheat (Triticum aestivum L.) bainong 207 and Glomus mosseae (GS) as materials. Effects of arbuscular mycorrhizal fungi on photosynthetic rate,conductance to H2O,transpiration rate,intercellular CO2 concentration,chlorophyll fluorescence,chlorophyll contents,trace element iron (Fe) ,magnesium (Mg) ,zinc (Zn) and cadmium(Cd) contents in wheat leaves were studied under Cd stress. The results showed that the photosynthetic rate,transpiration rate,conductance to H2O were increased by 11. 16％,21. 76％ and 14％,chlorophyll fluorescence,chlorophyll content increased 5. 56％ and 6. 56％,Fe,Mg and Zn contents increased 6. 63％,20％ and 4. 29％,the content of Cd and intercellular CO2 concentration decreased 18. 50％ and 17. 62％ under 5 mg·kg - 1 Cd stress,respectively. Under 10 mg·kg - 1 Cd stress,the photosynthetic rate,transpiration rate,conductance to H2O were increased by 28. 65％, 41. 25％ and 50％; chlorophyll fluorescence,chlorophyll content were increased by 1. 43％ and 15. 33％; Fe,Mg and Zn contents by increased were 7. 81％,30. 77％ and 9. 74％,but the content of Cd and intercellular CO2 concentration decreased 32. 20％ and 6. 45％,respectively. Therefore, inoculation of AMF could alleviate Cd stress and increased the chlorophyll content of wheat to enhance photosynthesis.关键词
丛枝真菌/Cd胁迫/小麦/光合系统Key words
arbuscular mycorrhizal fungi(AMF)/Cd stress/wheat/photosynthesis system分类
农业科技引用本文复制引用
赵佳楠,韩蕾蕾,王红霞,李海霞,袁祖丽..丛枝真菌对镉胁迫小麦光合系统的调节作用[J].河南农业大学学报,2019,53(2):161-167,7.基金项目
国家自然科学基金项目(31771730) （31771730）
