农林生态系统中的植物化感作用 孔垂华 中国科学院沈阳应用生态研究所 中国科学院会同森林生态实验站 中国科学院沈阳农业生态实验站 E-Mail: kongch@iae.ac Inter- & intra-species interactions among plants ? Biotic competition for light, nutrient, water and space ? Chemical Allelopathy(植物化感、他感、异株克生作用): produce and release allelochemicals (secondary metabolites) to affect the germination and growth of neighboring plants Chemical communication: recognition and information transfer Science, September 5, 2003 Inter-and intra-species chemical recognition and information transfer Farmer E.E. Nature, 2001, 411:855 Allelochemicals The action of allelochemicals involved in allelopathic plant-plant interactions needs their presence in the soil in the vicinity of the target plant Production, release, translocation, transfer Media: air, water, soil rhizosphere