Department of Bioscience, Aarhus University, Vejlsøvej 25, 8600 Silkeborg, Denmark.
Community and Conservation Ecology Group, Groningen Institute of Evolutionary Life Sciences, University of Groningen, Nijenborgh 7, 9747, AG, Groningen, The Netherlands; Department of Ecological Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081, HV, Amsterdam, The Netherlands.
Trends Ecol Evol. 2020 Aug;35(8):716-730. doi: 10.1016/j.tree.2020.04.001. Epub 2020 May 12.
Knowledge of the effect of plant secondary compounds (PSCs) on belowground interactions in the more diffuse community of species living outside the rhizosphere is sparse compared with what we know about how PSCs affect aboveground interactions. We illustrate here that PSCs from foliar tissue, root exudates, and leaf litter effectively influence such belowground plant-plant, plant-microorganism, and plant-soil invertebrate interactions. Climatic factors can induce PSC production and select for different plant chemical types. Therefore, climate change can alter both quantitative and qualitative PSC production, and how these compounds move in the soil. This can change the soil chemical environment, with cascading effects on both the ecology and evolution of belowground species interactions and, ultimately, soil functioning.
与我们所知的植物次生化合物（PSCs）如何影响地上相互作用相比，对于生活在根际以外的更为分散的物种群落中的地下相互作用，我们对 PSCs 的影响知之甚少。我们在这里说明，来自叶组织、根分泌物和凋落物的 PSCs 可以有效地影响地下植物-植物、植物-微生物和植物-土壤无脊椎动物的相互作用。气候因素可以诱导 PSC 的产生，并选择不同的植物化学类型。因此，气候变化可以改变 PSC 的产生的数量和质量，以及这些化合物在土壤中的移动方式。这会改变土壤的化学环境，对地下物种相互作用的生态和进化以及最终的土壤功能产生级联效应。
