基于Meta分析菌根菌对植物叶片生理的影响OA北大核心CSTPCD

Leaves are important plant organs,and their contents of nutrients,photosynthetic pigments,soluble sugars,and soluble proteins,as well as the activities of various enzymes,are important parameters that characterize their physiology.Photosynthesis and transpiration are important indicators of physiological activity in leaves.Mycorrhizal fungi are soil microorganisms that form symbioses with the vast majority of plants,and they can affect leaf physiology.For this study,we selected the most widely distributed arbuscular mycorrhizal fungi(AMF)and evaluated their effects on plant leaf physiology by conducting a Meta-analysis.Most previous studies have focused on investigating the physiological functions of a single plant inoculated with one AMF.To address this issue,we used a quantitative research method and a Meta-analysis to build and analyze a database of 152 relevant papers.These analyses allowed us to evaluate the impact of AMF on plant leaf physiology,and explore the effects of AMF at different classification levels.According to the results reported in the literature,AMF significantly increased the contents of nitrogen,phosphorus,potassium,calcium,magnesium,and zinc in leaves by 12.6%to 26.3%;Increased contents of chlorophyll,chlorophyll a,and chlorophyll b by 16.3%,12.1%,and 11.1%,respectively;And increased the contents of soluble sugars and soluble proteins by 34.8%and 18.4%,respectively.Various AMF also increased the activities of enzymes in leaves,including peroxidase(by 31.3%),superoxide dismutase(by 17.8%),catalase(by 23.3%),polyphenol oxidase(by 59.1%),and phenylalanine ammonia lyase(by 65.3%).As a result,AMF increased the net photosynthetic rate and transpiration rate of leaves by 27.7%and 31.1%,respectively.The results of this Meta-analysis show that different taxa(family,genus,species)of AMF have different effects on leaf physiology.These findings represent a systematic evaluation of the impacts of AMF on leaf physiology,highlight the functional diversity of AMF,and provide a practical basis for screening efficient AMF to improve leaf physiology.