湖南农业大学学报（自然科学版）2024，Vol.50Issue(3)：10-16,7.DOI:10.13331/j.cnki.jhau.2024.03.002
丛枝菌根和钼对小麦光合荧光特性的影响
Effects of arbuscular mycorrhiza and molybdenum on photosynthetic fluorescence characteristics of wheat
摘要
Abstract
In this study,the responses of arbuscular mycorrhizal(AM)to photosynthetic fluorescence characteristics of wheat under different molybdenum levels were studied by inoculation with Claroideoglomus etunicatum(BEG168)and non-inoculation control at four molybdenum levels of 0,5,100,1 000 mg/kg with pot experiment using sterilized soil.The results showed that arbuscular mycorrhizal fungi(AMF)could stably infect wheat under different soil molybdenum levels,with an average infection rate of 58.82%.AM could improve the net photosynthetic rate(Pn)and stomatal conductance(Gs)of wheat under different molybdenum levels.At molybdenum 100 mg/kg,the net photosynthetic rate of wheat was the most dependent on the mycorrhizal dependence,reaching 698.05%.AM could increase the maximum photochemical efficiency of photosystem II(Fv/Fm),the potential activity of photosystem II(Fv/Fo),the light energy absorption performance index(PIabs),the ability of photosystem II to transfer electrons downstream(φo)and the quantum yield of electron transfer(φEo)in wheat leaves under different molybdenum levels,especially at molybdenum 100 mg/kg,the increase was significant.In summary,AM could increase the photosynthetic capacity of wheat under different molybdenum levels and enhance the overall performance of photosystem II,reaching the optimal outcome at the levels of 100 mg/kg.关键词
小麦/钼/丛枝菌根/净光合速率/菌根依赖性/荧光特性Key words
wheat/molybdenum/arbuscular mycorrhizal/net photosynthetic rate/mycorrhiza dependence/fluorescence characteristics分类
农业科技引用本文复制引用
王震,高旭硕,张梦歌,韦文敬,石兆勇,徐寿霞..丛枝菌根和钼对小麦光合荧光特性的影响[J].湖南农业大学学报（自然科学版）,2024,50(3):10-16,7.基金项目
国家自然科学基金项目(32171620) （32171620）
河南省科技攻关项目(232102111005) （232102111005）
