摘要 : Plant defensins represent a novel class of antimicrobial peptides showing structural and functional homology to their insect and mammalian defensin counterparts. Evidence is presented to support the idea that plant defensins are i... 展开 Plant defensins represent a novel class of antimicrobial peptides showing structural and functional homology to their insect and mammalian defensin counterparts. Evidence is presented to support the idea that plant defensins are important componentsof the defence system in plants and have roles in the protection of both seeds and vegetative tissues. Evidence includes the location of plant defensins at the periphery of different organs, and their induction under pathogenic stress. It is demonstrated that transgenic plants constitutively expressing a plant defensin show enhanced disease resistance. 收起