The phenomenon of invasive alien species has become one of the greatest threats to the biological diversity of the planet, placing major constraints on development. In order to provide the tools needed to address this pervasive issue, the current knowledge on invasive species must be further developed with a cross-sectoral and multidisciplinary approach. Recent theories of invasion propose that exotic plants probably produce secondary metabolites which can be allelopathic, antiherbivore, antimicrobial and which are either unique or underrepresented in the plants’ new range. This review attempts to attract the attention of phytochemists to study either the mechanisms of plant invasion or to use this widespread plant resource for humans.
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