生物强化
碘
甲状腺功能
环境化学
污染物
食物链
环境科学
化学
生物
生物技术
甲状腺
生态学
微量营养素
内分泌学
有机化学
作者
Yue Zhang,Han Cao,Min Wang,Ziwei Zou,Pingfan Zhou,Xiangxue Wang,Jie Jin
标识
DOI:10.1016/j.scitotenv.2023.163203
摘要
Iodine deficiency can cause thyroid disease, a serious health problem that has been affecting humans since several years. The biofortification of plants with iodine is an effective strategy for regulating iodine content in humans. In addition, radioiodine released into the atmosphere may contaminate terrestrial ecosystem along with dry or wet deposition and its accumulation in plants may cause exposure risks to humans via food chain. Recent progress in understanding the mechanisms related to iodine uptake, elementary speciation, dynamic transportation, nutritional role, and toxicity in plants is reviewed here. First, we introduced the iodine cycle in a marine-atmosphere-land system. The content and speciation of iodine in plants under natural conditions and biofortification backgrounds were also analyzed. We then discussed the mechanisms of iodine uptake and efflux by plants. The promotion or inhibition effects of iodine on plant growth were also investigated. Finally, the participation of radioiodine in plant growth and its safety risks along the food chain were evaluated. Furthermore, future challenges and opportunities for understanding the participation of iodine in plants have been outlined.
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