植物的次生代谢

Plant Secondary Metabolism

物质在细胞中合成和分解的过程称为代谢。科塞尔(H.Kossel)于1891年首次明确地将植物的代谢分为初生代谢与次生代谢。初生代谢为维持细胞生命活动所必需,其代谢物存在于所有植物中,包括糖类、蛋白质和脂类等;而次生代谢产物是一类并非植物生长发育所必需的小分子有机化合物,其产生和分布通常有种属、器官、组织和生长发育期的特异性,但这并不意味着次生代谢物没有任何生理功能。现已知道。

Plant secondary metabolites are rich sources of natural products, widely used in medicine, flavor and fragrance, etc. Infection of phytopathogenic microorganisms to plants may result in varied secondary metabolism in the host, inducing increased biosynthesis of antibiotic phytoalexins. The study in this area will have significant impact on agriculture and medicinal industry.