Hasan S Aiman, Fariduddin Q, Ali B, Hayat S, Ahmad A
Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, India.
J Environ Biol. 2009 Mar;30(2):165-74.
Of all the non-essential heavy metals, cadmium (Cd) is perhaps the metal which has attracted the most attention in soil science and plant nutrition due to its potential toxicity to humans, and also its relative mobility in the soil-plant system. This review summarizes the toxic symptoms of Cd in plants (i.e. growth retardation, alterations of photosynthesis, stomatal movement, enzymatic activities, water relations, interferences with mineral uptake, protein metabolism, membrane functioning, etc.) but also includes the mechanisms of cadmium uptake, translocation and deposition. Moreover, it also throws light on chelation, including identification of Cd ligands present in cytosol and vascular tissue. Cadmium-induced oxidative stress is also considered as one of the most widely studied topics in this review.
在所有非必需重金属中，镉（Cd）可能是因其对人类的潜在毒性以及在土壤 - 植物系统中的相对迁移性而在土壤科学和植物营养领域最受关注的金属。本综述总结了镉在植物中的毒性症状（即生长迟缓、光合作用改变、气孔运动、酶活性、水分关系、对矿物质吸收的干扰、蛋白质代谢、膜功能等），还包括镉的吸收、转运和沉积机制。此外，它还阐述了螯合作用，包括对存在于细胞质和维管组织中的镉配体的鉴定。镉诱导的氧化应激也是本综述中研究最广泛的主题之一。
