小麦镉积累影响因素的研究进展

doi:10.16178/j.issn.0528-9017.20220747

摘要/Abstract

摘要：

世界范围内大面积农田遭受镉（Cd）污染，而与其他谷类作物相比，小麦籽粒更易积累Cd，成为威胁人类健康的风险因素。明确籽粒Cd积累差异形成的原因及其生理机理，对于低积累Cd小麦品种育种工作和小麦安全生产的栽培措施具有重要的意义。本文基于国内外相关研究，概述了根际Cd生物有效性、根系Cd吸收、Cd由根系向地上部分转运、Cd向籽粒转运等影响Cd积累的关键因素。分析了水分管理、有机肥施用等栽培措施和根系活动对根际Cd生物有效性的影响；总结了根系Cd吸收相关的转运载体，并讨论了农艺措施对根系Cd吸收的影响；概述了Cd由根系向地上部运输的途径及相关载体，并阐述了Cd在根系液泡内分隔在降低Cd运输中的作用；讨论了Cd通过灌浆期根系吸收和营养器官储存Cd再动员两种途径向籽粒运输及相关机理。最后，对未来小麦Cd积累机理和安全利用措施相关的研究进行了展望。

关键词: 小麦, 镉, 生物有效性, 镉吸收, 镉转运, 栽培措施, 生理机理

中图分类号:

S512.1

徐立军, 黃窈军, 汪亚萍, 沈阿林, 高敬文. 小麦镉积累影响因素的研究进展[J]. 浙江农业科学, 2022, 63(11): 2508-2511.

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小麦镉积累影响因素的研究进展

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