南京林业大学学报（自然科学版）2025，Vol.49Issue(3)：205-212,8.DOI:10.12302/j.issn.1000-2006.202309012
接种丛枝菌根真菌(AMF)对夏雪片莲生长状况和光合特性的影响
The influence of arbuscular mycorrhizal fungi(AMF)inoculation on the growth status and photosynthetic characteristics of Leucojum aestivum
摘要
Abstract
[Objective]This study investigated the effects of arbuscular mycorrhizal fungi(AMF)colonization on the growth and photosynthetic characteristics of Leucojum aestivum.[Method]Two-year-old bulbils of L.aestivum were selected as the experimental material.The experimental design consisted of five groups,three of which received single AMF inoculations[inoculated with Rhizophagus intraradices(Ri),Funneliformis mosseae(Fm),and Diversispora tortuosa(Dt)].The fourth group was inoculated with a 1∶1∶1 mixture of the three AMF species(Mi),and the control group was inoculated with a sterilized 1∶1∶1 mixture of the AMFs.After two months,plant height,fresh and dry weight,and photosynthetic characteristics of L.aestivum were measured.[Result]The Fm group exhibited the highest infection rate at 69.38％,while the Ri group had the lowest infection rate at 36.93％.The infection rate in the Ri group was significantly lower than those of the Fm,Dt,and Mi groups.Among the treatment groups,the Fm group showed the most plant height(43.46 cm)and the dry weight(39.94 g).Photosynthetic parameters indicated that the Ri group had the most average stomatal conductance[Gs=0.30 mol/(m2·s),intercellular CO2 concentration(Ci=331 μmol/mol),and transpiration rate(Tr=3.45 mmol/(m2·s),with the transpiration rate significantly higher than in the control group(CK)].Correlation analysis revealed a generally significant positive correlation between net photosynthetic rate(Pn)and Gs across all treatments,except for leaf stomatal conductance(Ls)and Ci. Although other photosynthetic indices exhibited correlations,no consistent pattern was observed across treatments.Membership function analysis indicated that the inoculation effect of the Mi group was the most beneficial,followed by Dt.[Conclusion]AMF colonization effectively promotes the growth of L. aestivum.The effects on photosynthesis vary across different AMF species,with Dt and Mi significantly enhancing the photosynthetic capacity and biomass of L. aestivum.In contrast,Fm positively affected plant height but did not significantly influence photosynthetic capacity.关键词
夏雪片莲/丛枝菌根真菌/生长状况/光合特性/相关性分析/隶属函数法Key words
Leucojum aestivum./arbuscular mycorrhizal fungi(AMF)/growth status/photosynthetic characteristics/correlation analysis/membership function method分类
农业科技引用本文复制引用
王炜,母洪娜,杨慧敏,孙陶泽..接种丛枝菌根真菌(AMF)对夏雪片莲生长状况和光合特性的影响[J].南京林业大学学报（自然科学版）,2025,49(3):205-212,8.基金项目
湿地生态与农业利用教育部工程研究中心开放基金项目(KF201915) （KF201915）
湖北省教育厅哲学社会科学研究项目(23Y140). （23Y140）
