Invasive species utilize a wide array of trait strategies to establish in novel ecosystems. Among these traits is the capacity to produce allelopathic compounds that can directly inhibit neighboring native plants or indirectly suppress native plants via disruption of beneficial belowground microbial mutualisms, or altered soil resources. Despite the well-known prevalence of allelopathy among plant taxa, the pervasiveness of allelopathy among invasive plants is unknown. Here we demonstrate that the majority of the 524 invasive plant species in our database produce allelochemicals with the potential to negatively affect native plant performance. Moreover, allelopathy is widespread across the plant phylogeny, suggesting that allelopathy could have a large impact on native species across the globe. Allelopathic impacts of invasive species are often thought to be present in only a few plant clades (e.g., Brassicaceae). Yet our analysis shows that allelopathy is present in 72% of the 113 plant families surveyed, suggesting that this ubiquitous mechanism of invasion deserves more attention as invasion rates increase across the globe.

入侵物种利用多种性状策略来建立新型生态系统。这些特征是产生化感化合物的能力，所述化感化合物可以通过破坏有益的地下微生物共生关系或改变土壤资源而直接抑制邻近的天然植物或间接抑制天然植物。尽管在植物类群中普遍存在化感病，但在入侵植物中化感病的普遍性尚不清楚。在这里，我们证明了我们数据库中524种入侵植物的绝大部分都产生了化感物质，它们可能会对天然植物的生长性能产生负面影响。此外，化感作用在整个植物系统发育中均很普遍，这表明化感作用可能对全球的本地物种产生重大影响。通常认为入侵物种的化感影响仅存在于少数植物进化枝（例如十字花科）中。然而，我们的分析表明，在接受调查的113个植物科中，有72％存在化感病，这表明随着全球入侵率的提高，这种普遍存在的入侵机制值得更多关注。