Mycorrhizal Mediation of Plant Colonization, Community Development, and Carbon Accretion on a Glacier Forefront

小行星9310006 研究建议，以确定是否菌根真菌加速植物群落的发展。 在华盛顿的莱曼冰川前沿进行了一系列温室和实地研究，计划测试：VAM是否能提高早期殖民者的生存和生长;存活的菌根植物是否允许更大的菌根真菌多样化;以及植物建立、环境改造和真菌多样化之间的正反馈是否最终增加了群落发展和系统碳积累的速率。 具体而言，研究人员将测量菌根形成和土壤碳积累如何随与现有植物岛的距离而变化;菌根真菌，已建立植物的环境改造，土壤有机质以及无机氮和磷如何影响新植物的生存和定植;并测试暗隔膜内生菌作为已建立植物和定植植物之间桥梁的能力。这些研究的结果将提供证据，在何种程度上真菌是帮助植物定殖的负责任因素，特别是在营养不良，恶劣的环境。***

9310006 Trappe Research is proposed to determine whether mycorrhizal fungi accelerate plant community development. A series of greenhouse and field studies at the Lyman Glacier forefront in Washington are planned to test: whether VAM enhance the survival and growth of early colonizers; whether surviving mycorrhizal plants allow greater mycorrhizal fungal diversification; and whether the resultant positive feedback between plant establishment, environmental modification, and fungal diversification ultimately increase rates of community development and system carbon accretion. Specifically, researchers will measure how mycorrhizal formation and soil carbon accretion vary as a function of distance from existing plant islands; how mycorrhizal fungi, environmental modification by established plants, soil organic matter, and inorganic nitrogen and phosphorus affect new plant survival and colonization in the field; and test the ability of dark septate endophytes to act as bridges between established plants and colonizing plants. %%% Results of these studies would provide evidence on the degree to which mycorrhizae are responsible factors aiding plant colonization, particularly in nutrient poor, harsh environments. ***