Zn Uptake and Translocation in Rice Plants
Zn Uptake and Translocation in Rice Plants
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DOI：
10.1007/s12284-011-9061-3
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发表时间：
2011-03-01
期刊：
影响因子：
5.5
通讯作者：
Nishizawa, Naoko K.
中科院分区：
文献类型：
--
作者：
Ishimaru, Yasuhiro;Bashir, Khurram;Nishizawa, Naoko K.
锌（Zn）是植物中具有多种细胞功能的必需微量营养素，其缺乏是全球人类营养中最严重的问题之一。缺锌会导致植物生长和产量下降。另一方面，如果积累过量，锌可能有毒。因此，必须严格控制锌的吸收和运输。在这篇综述中，描述了水稻（Oryza sativa）土壤-根-芽易位中锌的主要通量，包括根表面以 Zn2+ 和 Zn-DMA 形式从土壤吸收的锌，以及向芽的锌易位。了解这些通量可能有助于制定遗传和生理策略，以解决作物生长中普遍存在的锌限制问题。
Zinc (Zn) is an essential micronutrient with numerous cellular functions in plants, and its deficiency represents one of the most serious problems in human nutrition worldwide. Zn deficiency causes a decrease in plant growth and yield. On the other hand, Zn could be toxic if excess amounts are accumulated. Therefore, the uptake and transport of Zn must be strictly regulated. In this review, the dominant fluxes of Zn in soil-root-shoot translocation in rice plants (Oryza sativa) are described, including Zn uptake from soils in the form of Zn2+ and Zn-DMA at the root surface, and Zn translocation to shoots. Knowledge of these fluxes could be helpful to formulate genetic and physiologic strategies to address the widespread problem of Zn-limited crop growth.