植物化感物质对种子萌发的影响

所有的化感物质都对一些植物的种子萌发产生影响.本文介绍了植物化感作用和化感物质的定义,化感物质的释放方式和种类,然后重点综述了化感物质影响种子萌发的作用机理、内外因素和生态学意义.化感物质通过影响细胞膜透性、细胞分裂生长和分化、呼吸作用、蛋白质合成、基因表达、激素合成和平衡,最终影响种子萌发.化感物质对种子萌发的影响与化感物质的种类、浓度、受体植物种类和环境条件等有关.

Effects of allelochemicals on seed germination

All kinds of allelochemicals can affect seed germination through affecting seed cell membrane permeability, cell division and differentiation, respiration, protein synthesis, gene expression, and hormone synthesis and equilibrium. The allelopathic effects on seed germination are related to the types and concentrations of alleochemicals, species of recipient plants, and environmental conditions. In this paper, the definitions of plant allelopathy and allelochemicals, and the releasing modes and types of allelochemicals were introduced, with the focus on the action mechanisms of allelochemicals on seed germination, their affecting factors, and ecological significances.