Institut für Biologie, Freie Universität Berlin, Berlin, 14195, Germany.
Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany.
New Phytol. 2021 Nov;232(4):1535-1539. doi: 10.1111/nph.17714. Epub 2021 Sep 20.
Plant-soil systems are key for understanding the effects of factors of global change. Recent work has highlighted the general importance of considering the simultaneous incidence of some factors or stressors. To help mechanistically dissect the possible interactions of such factors, we here propose three broad groups of mechanisms that may generally lead to nonadditivity of responses within a plant-soil system: direct factor interactions (that is one factor directly changing another), within-plant information processing and crosstalk, and effects of factors on groups of soil biota interacting with plants. Interactions are also possible within and across these groups. Factor interactions are very likely to be present in experiments, especially when dealing with an increasing number of factors. Identifying the nature of such interactions will be essential for understanding and predicting global change impacts on plants and soil.
植物-土壤系统是理解全球变化因素影响的关键。最近的工作强调了同时考虑一些因素或胁迫同时发生的普遍重要性。为了帮助从机制上剖析这些因素的可能相互作用，我们在这里提出了三个广泛的机制组，这些机制可能会导致植物-土壤系统中反应的非加性：直接因素相互作用（即一个因素直接改变另一个因素）、植物内部信息处理和串扰以及因素对与植物相互作用的土壤生物群的影响。相互作用也可能在这些组内和组间发生。相互作用在实验中很可能存在，特别是在处理越来越多的因素时。确定这种相互作用的性质对于理解和预测全球变化对植物和土壤的影响至关重要。
