Vegetables could provide essential vitamins and minerals for human being and they were necessary for people' s daily diet. Along with the rapid development of industry and ever-growing globally contamination, vegetable products were subject to hazards of different degree. Heavy metal pollution was one of important factors that affected vegetable growth and human health. Based on previous studies, this paper briefly introduced the major sources of heavy metals from 2 aspects of soil and atmosphere, and analyzed the effect of heavy metals on vegetable plant growth, cell ultra-structure, membrane permeability,enzyme activity, photosynthesis, proline content, and their physiological and biochemistry effects. The paper also expounded the accumulation rule of heavy metals in different vegetable crops, varieties and vegetable organs. It carried out preliminary discussion on their molecular mechanism.%蔬菜能够提供人体所必需的多种维生素和矿物质,是人们日常饮食中必不可少的食物之一.随着工业化生产的飞速发展,全球污染日益加重,蔬菜产品也受到不同程度的危害,其中重金属污染是影响蔬菜生长和人类身体健康的重要因素之一.本文在前人研究的基础上,从土壤和大气两方面简要介绍了重金属的主要来源,从蔬菜的生长、细胞超微结构、细胞膜透性、酶活性、光合作用和脯氨酸含量六个方面着重分析了重金属对蔬菜作物生长发育的影响及其生理生化效应,进而综述了不同蔬菜种类、品种和器官对重金属的富集规律,并对其分子机制进行了初步探讨.
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