大屯火山群大油坑硫磺噴氣口白背芒與叢枝菌根菌共生關係

Symbiotic Relationship between Miscanthus Sinensis Var. Glaber and AM Fungi in Dayukeng Fumarole Area in Tatun Volcano Group

大屯火山群大油坑硫磺噴氣口鄰近區域長年在後火山作用下形成特殊的土壤環境，僅有少數耐極酸土壤的植物如白背芒存活於此。本研究藉由裸土誘導繁殖試驗及白背芒與大頭茶接種叢枝菌根菌試驗，發現叢枝菌根菌有助於白背芒於陽明山特殊的土壤條件中有效改善養分吸收狀態，並更進一步證實白背芒的存在有助於叢枝菌根菌族群的建立，並有助於後續植生建立。

Dayukeng fumarole area of Tatun volcano group is able to preserve unique soil environment due to year-round influence from post-volcanism phenomena, and only a few extreme acid-tolerable plant species such as Miscanthus sinensis var. glaber can exist in this area. By means of bait culture in bare soil and VA fungi inoculation experiment with M. sinensis var. glaber and Gordonia axillaris, we found that AM fungi improves the nutrient availability of M. sinensis var. glaber in Yangming mountain peculiar soil, and verified that the existence of M. sinensis var. glaber is contributive to population establishment of AM fungi, which further helps successive plants to establish.