Callaway Ragan M, Vivanco Jorge M
Centre for Environmental Management of Degraded Ecosystems (CEMDE), University of Delhi, Delhi 110007, India.
Trends Plant Sci. 2006 Dec;11(12):574-80. doi: 10.1016/j.tplants.2006.10.004. Epub 2006 Nov 7.
Ecologists have long searched for an explanation as to why some plant invaders become much more dominant in their naturalized range than in their native range, and, accordingly, several non-exclusive ecological hypotheses have been proposed. Recently, a biochemical explanation was proposed--the "novel weapons hypothesis"--based on findings that Centaurea diffusa and Centaurea maculosa produce bioactive compounds (weapons) that are more active against naïve plant species in the introduced range than against co-evolved species in the native range. In this Opinion article, we revise and expand this biochemical hypothesis and discuss experimental and conceptual advances and limitations.
长期以来，生态学家一直在探寻为何有些植物入侵者在其归化范围内比在原生范围内更具优势的原因，相应地，人们提出了几种并非相互排斥的生态学假说。最近，基于矢车菊和斑点矢车菊产生的生物活性化合物（武器）对引入范围内未共同进化的植物物种比对原生范围内共同进化的物种更具活性这一发现，有人提出了一种生化解释——“新武器假说”。在这篇观点文章中，我们对这一生化假说进行了修订和扩展，并讨论了实验和概念方面的进展与局限性。
