单词	allelochemical
释义	allelochemical /əˌliːləʊˈkɛmɪk(ə)l / noun A chemical produced by a living organism that exerts a detrimental physiological effect on individuals of another species when released into the environment.And most important, we need to be sure that allelochemicals don't harm non-target organisms, including humans.... Various plant species are known to suppress other species by the production of allelochemicals from leaves, flowers, seeds, stems, and roots of living or decomposing plant materials. These allelochemicals are concentrated in the photosynthetic layer of the stem which is located directly under the skin of the cactus. Origin 1970s: from Greek allēl- 'one another' + chemical.
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