Kato-Noguchi Hisashi, Kurniadie Denny
Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki 761-0795, Kagawa, Japan.
Department of Agronomy, Faculty of Agriculture, Universitas Padjadjaran Jl. Raya, Bandung Sumedang KM 21 Sumedang, Jawa Barat 45363, Indonesia.
Plants (Basel). 2021 May 20;10(5):1028. doi: 10.3390/plants10051028.
L. (Verbenaceae) is native to tropical America and has been introduced into many other countries as an ornamental and hedge plant. The species has been spreading quickly and has naturalized in more than 60 countries as an invasive noxious weed. It is considered to be one of the world's 100 worst alien species. often forms dense monospecies stands through the interruption of the regeneration process of indigenous plant species. Allelopathy of has been reported to play a crucial role in its invasiveness. The extracts, essential oil, leachates, residues, and rhizosphere soil of suppressed the germination and growth of other plant species. Several allelochemicals, such as phenolic compounds, sesquiterpenes, triterpenes, and a flavonoid, were identified in the extracts, essential oil, residues, and rhizosphere soil of The evidence also suggests that some of those allelochemicals in are probably released into the rhizosphere soil under the canopy and neighboring environments during the decomposition process of the residues and as leachates and volatile compounds from living plant parts of The released allelochemicals may suppress the regeneration process of indigenous plant species by decreasing their germination and seedling growth and increasing their mortality. Therefore, the allelopathic property of may support its invasive potential and formation of dense monospecies stands.
L.（马鞭草科）原产于热带美洲，已作为观赏植物和绿篱植物被引入许多其他国家。该物种传播迅速，已在60多个国家归化成为入侵性有害杂草。它被认为是世界上100种最严重的外来物种之一。L.常常通过中断本土植物物种的再生过程形成密集的单物种群落。据报道，L.的化感作用在其入侵性中起关键作用。L.的提取物、精油、浸出液、残渣和根际土壤抑制了其他植物物种的萌发和生长。在L.的提取物、精油、残渣和根际土壤中鉴定出了几种化感物质，如酚类化合物、倍半萜、三萜和一种黄酮类化合物。证据还表明，L.中的一些化感物质可能在残渣分解过程中以及作为来自L.活体植物部分的浸出液和挥发性化合物释放到树冠下和邻近环境的根际土壤中。释放出的化感物质可能通过降低本土植物物种的萌发和幼苗生长以及增加其死亡率来抑制其再生过程。因此，L.的化感特性可能支持其入侵潜力和密集单物种群落的形成。
