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| Research Progress on Physiological Effect of Heavy Metals in Vegetables and Their Accumulation Rule |
| ZOU Ri，SHEN Di，BAI Xin-fu,LI Xi-xiang |
| 1Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2Life Science College of Ludong University, Yantai 264025, Shandong, China |
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Abstract 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.
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Received: 12 October 2010
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