The interactive effects of arbuscular mycorrhizal fungi and nutrient heterogeneity on root foraging traits and competitive ability of native and invasive plants

Root foraging associated with arbuscular mycorrhizal fungi (AMF) play an important role in nutrient uptake. While distribution of nutrients can influence the role of AMF, but the interactive effects of nutrient heterogeneity and AMF on root foraging and plant competition are still unclear. Two invasive and two native species of Asteraceae family were selected. We conducted a common garden experiment of three factors (heterogeneity, AMF and competition).

与丛枝菌根真菌（arbuscular mycorrhizal fungi，AMF）相关的根系觅食行为在植物养分吸收中发挥着关键作用。尽管养分分布可影响丛枝菌根真菌的功能，但养分异质性与丛枝菌根真菌对根系觅食及植物竞争的交互效应仍尚不明确。本研究选取了菊科（Asteraceae）的2种入侵物种与2种本土物种，开展了包含养分异质性、丛枝菌根真菌及种间竞争三个因素的同质园试验。