摘要 : Endophytes of grasses have been reported to affect the colonization by arbuscular mycorrhizal fungi (AMF) not only of their dual host plant but also of neighboring non-endophyte-infected plants. However, studies investigating the ... 展开 Endophytes of grasses have been reported to affect the colonization by arbuscular mycorrhizal fungi (AMF) not only of their dual host plant but also of neighboring non-endophyte-infected plants. However, studies investigating the impact of AMF identity on the effects of endophyte-infected grasses on neighboring plants are rare. In this study, we investigated the influence ofLeymus chinensislitter type (NL, no litter; E-, endophyte-free litter; E-E+, half E+ and half E- litter; E+, endophyte-infected litter) onStipa kryloviigrowth with different AMF species (Claroideoglomus etunicatum, CE;Funneliformis mosseae, FM;Claroideoglomus claroideum, CC;Rhizophagus intraradices, RI). The results showed that the root biomass ofS. kryloviitended to decrease with the increase of E+ litter in the mycorrhiza-free treatment. With AMF inoculation, the effects of E+ litter on the AMF colonization rate and root biomass ofS. kryloviivaried with AMF species. Structural equation modeling (SEM) showed E+ litter could modulate the growth ofS. kryloviiindirectly via changes in AMF colonization rate, but this effect was related to AMF species. 收起