Bruno Leonardo, Mircea Diana M, Araniti Fabrizio
Department of Biology, Ecology, and Hearth Sciences (DiBEST), University of Calabria, 87036 Arcavacata, Italy.
Mediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
Metabolites. 2025 Jan 3;15(1):12. doi: 10.3390/metabo15010012.
This study explores the allelopathic effects of volatile organic compounds (VOCs) emitted by the invasive species (Mill.) Swingle on the seed germination of . is known for releasing allelopathic VOCs that suppress the growth of neighbouring plants, contributing to its invasive potential. To examine these effects, we exposed seeds to varying concentrations of VOCs, assessing germination rates and metabolic changes through untargeted metabolomics. Our findings revealed that VOCs from significantly inhibited the germination speed and overall germination rates of in a dose-dependent manner. Metabolomic profiling showed disruptions in energy and amino acid metabolism pathways, specifically involving delayed breakdown of starch and key metabolites, indicating inhibition of critical metabolic processes during early germination stages. This metabolic delay likely impairs 's establishment and competitiveness, enhancing 's ecological dominance. The results underscore the potential of VOC-based allelopathy as a mechanism of plant invasion, offering insights into the role of VOCs in interspecies plant competition and ecosystem dynamics.
本研究探讨了入侵物种（米勒）斯温格尔释放的挥发性有机化合物（VOCs）对[具体物种]种子萌发的化感作用。[该入侵物种]以释放抑制邻近植物生长的化感VOCs而闻名，这有助于其入侵潜力。为了研究这些影响，我们将[具体物种]种子暴露于不同浓度的[该入侵物种]VOCs中，通过非靶向代谢组学评估发芽率和代谢变化。我们的研究结果表明，来自[该入侵物种]的VOCs以剂量依赖的方式显著抑制了[具体物种]的发芽速度和总体发芽率。代谢组学分析显示能量和氨基酸代谢途径受到干扰，特别是淀粉和关键代谢物的分解延迟，表明在早期萌发阶段关键代谢过程受到抑制。这种代谢延迟可能会损害[具体物种]的定植和竞争力，增强[该入侵物种]的生态优势。结果强调了基于VOC的化感作用作为植物入侵机制的潜力，为VOCs在种间植物竞争和生态系统动态中的作用提供了见解。
