Staszek Pawel, Krasuska Urszula, Ciacka Katarzyna, Gniazdowska Agnieszka
Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland.
Antioxidants (Basel). 2021 Oct 20;10(11):1648. doi: 10.3390/antiox10111648.
The allelopathic interaction between plants is one of the elements that influences plant communities. It has been commonly studied by applying tissue extracts onto the acceptors or by treating them with isolated allelotoxins. Despite descriptive observations useful for agricultural practice, data describing the molecular mode of action of allelotoxins cannot be found. Due to the development of -omic techniques, we have an opportunity to investigate specific reactive oxygen species (ROS)-dependent changes in proteome or transcriptome that are induced by allelochemicals. The aim of our review is to summarize data on the ROS-induced modification in acceptor plants in response to allelopathic plants or isolated allelochemicals. We present the idea of how ROS are involved in the hormesis and plant autotoxicity phenomena. As an example of an -omic approach in studies of the mode of action of allelopatic compounds, we describe the influence of -tyrosine, an allelochemical exudated from roots of fescues, on nitration-one of nitro-oxidative posttranslational protein modification in the roots of tomato plants. We conclude that ROS overproduction and an induction of oxidative stress are general plants' responses to various allelochemicals, thus modification in ROS metabolisms is regarded as an indirect mode of action of allelochemicals.
植物间的化感相互作用是影响植物群落的因素之一。人们通常通过将组织提取物施用于受体植物或用分离出的化感毒素处理受体植物来对此进行研究。尽管描述性观察对农业实践有用，但找不到描述化感毒素分子作用模式的数据。由于组学技术的发展，我们有机会研究化感物质诱导的蛋白质组或转录组中特定的活性氧（ROS）依赖性变化。我们综述的目的是总结关于受体植物中ROS诱导的变化的数据，这些变化是对化感植物或分离出的化感物质的响应。我们提出了ROS如何参与刺激效应和植物自毒现象的观点。作为化感化合物作用模式研究中组学方法的一个例子，我们描述了羊茅根系分泌的化感物质对羟基苯丙氨酸对番茄植株根系中硝化作用（蛋白质翻译后硝基氧化修饰之一）的影响。我们得出结论，ROS的过量产生和氧化应激的诱导是植物对各种化感物质的普遍反应，因此ROS代谢的改变被视为化感物质的间接作用模式。
