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水稻施汞盆栽试验及乳熟期水稻活体水培试验表明,甲基汞从根部和叶片进入稻体,根部通透性与HgCl_2相近。甲基汞自根部进入稻体后,迅速向其他器官进行有效迁移,其分布顺序为子实>根>茎>叶。子实中甲基汞可达总汞量的80％以上。对油料作物调查的数据表明,植物器官积累甲基汞的主要因子是富—SH基的蛋白质。本文强调从“质”上监测强毒性的甲基汞。
Pot experiments of rice in pots with mercury and in vitro culture experiments in milky-ripened rice showed that methylmercury entered the rice plant from roots and leaves, and the permeability of roots was similar to that of HgCl 2. Methylmercury rapidly migrated to other organs after it entered the rice plant, and its distribution order was sub-root> root> stem> leaf. In fact, methylmercury can reach more than 80% of the total mercury content. Data from surveys of oilseed crops indicate that the major factor that accumulates methylmercury in plant organs is the SH-rich protein. This article emphasizes the “qualitative” monitoring of toxic methylmercury.