Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4.
Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, BC, Canada, V6T 1Z4
AoB Plants. 2015 May 15;7:plv050. doi: 10.1093/aobpla/plv050.
Adaptive behaviour of plants, including rapid changes in physiology, gene regulation and defence response, can be altered when linked to neighbouring plants by a mycorrhizal network (MN). Mechanisms underlying the behavioural changes include mycorrhizal fungal colonization by the MN or interplant communication via transfer of nutrients, defence signals or allelochemicals. We focus this review on our new findings in ectomycorrhizal ecosystems, and also review recent advances in arbuscular mycorrhizal systems. We have found that the behavioural changes in ectomycorrhizal plants depend on environmental cues, the identity of the plant neighbour and the characteristics of the MN. The hierarchical integration of this phenomenon with other biological networks at broader scales in forest ecosystems, and the consequences we have observed when it is interrupted, indicate that underground 'tree talk' is a foundational process in the complex adaptive nature of forest ecosystems.
植物的适应行为，包括生理学、基因调控和防御反应的快速变化，当通过菌根网络 (MN) 与相邻植物联系在一起时，可能会发生改变。行为变化的机制包括 MN 中菌根真菌的定植，或通过养分、防御信号或化感物质的转移进行的植物间通讯。我们专注于我们在外生菌根生态系统中的新发现，并回顾了丛枝菌根系统的最新进展。我们发现，外生菌根植物的行为变化取决于环境线索、植物邻居的身份和 MN 的特征。这种现象与森林生态系统中更广泛尺度上的其他生物网络的分层整合，以及我们观察到的中断时的后果表明，地下“树语”是森林生态系统复杂适应性的基础过程。
