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中国农学通报 ›› 2025, Vol. 41 ›› Issue (33): 1-5.doi: 10.11924/j.issn.1000-6850.casb2025-0428

• 农学·农业基础科学 •    下一篇

富锌水稻研究综述:从遗传育种到营养强化的多维度探索

吕展轩(), 刘冠明()   

  1. 仲恺农业工程学院,广州 510225
  • 收稿日期:2025-05-30 修回日期:2025-10-25 出版日期:2025-11-25 发布日期:2025-12-01
  • 通讯作者:
    刘冠明,男,1971年出生,广东韶关人,副教授,博士,主要从事水稻遗传育种的研究。通信地址:510225 广州市海珠区纺织路东沙街24号,Tel:020-89002097,E-mail:
  • 作者简介:

    吕展轩,男,2001年出生,广东梅州人,在读硕士研究生,研究方向:水稻的分子育种。通信地址:510225 广州市海珠区纺织路东沙街24号,Tel:020-89002097,E-mail:

  • 基金资助:
    汕尾市省级科技专项资金“大专项+任务清单”项目“特色水稻种子繁育与种植示范科技创新平台建设”(2023B003); 广东省驻镇帮镇扶村科技特派员项目“特色农产品高效种植技术示范及电商推广”(KTP20240220)

A Review on Zinc-enriched Rice Research: A Multidimensional Exploration from Genetic Breeding to Nutritional Enhancement

LYU Zhanxuan(), LIU Guanming()   

  1. Zhongkai University of Agriculture and Engineering, Guangzhou 510225
  • Received:2025-05-30 Revised:2025-10-25 Published:2025-11-25 Online:2025-12-01

摘要:

锌是人体必需的微量元素,全球约20亿人受锌缺乏导致的隐性饥饿困扰,水稻作为主粮的锌营养强化是解决该问题的高效途径。本文系统综述了富锌水稻在遗传育种、生理机制与栽培技术等领域的研究进展。归纳了分子标记辅助选择、CRISPR/Cas9基因编辑、航天诱变等育种技术在高锌种质创制中的应用;分析了锌吸收转运蛋白(如OsZIP、OsHMA2)功能及尼克酰胺(NA)介导的韧皮部锌运输机制;总结了锌肥基施结合叶面喷施、磷锌配施、稻渔种养等栽培措施对水稻籽粒锌富集的调控效果。指出OsCKX4过表达株系糙米锌含量达58 mg/kg,OsNAS过表达水稻株系NA合成量提升2倍,锌分配效率显著提高;分析表明,栽培技术协同应用可使水稻籽粒锌含量提升至42 mg/kg,单产突破12750 kg/hm2,实现“高产-高锌”协同提升。研究提出未来应整合多组学技术与智慧农业手段,推动富锌水稻产业化应用,为全球锌营养改善提供解决方案。

关键词: 富锌水稻, 分子育种, 生理机制, 栽培技术, 锌转运蛋白, 生物强化, 营养健康

Abstract:

Zinc is an essential trace element for us. About 2 billion people in the world are suffering from hidden hunger caused by zinc deficiency. Zinc nutrition enhancement of rice is an efficient way to solve this problem. This review systematically synthesized advances in zinc-enriched rice research across genetic breeding, physiological mechanisms, and cultivation techniques. It summarized the application of molecular marker-assisted selection, CRISPR/Cas9 gene editing, and space mutagenesis in developing high-zinc varieties; analyzed the functions of zinc transport proteins (e.g., OsZIP, OsHMA2) and nicotianamine (NA)-mediated zinc phloem transport; and reviewed the effects of cultivation practices such as basal and foliar zinc fertilization, phosphorus-zinc co-application, and rice-fish co-culture on grain zinc enrichment. The review pointed out that OsCKX4 overexpression lines achieved 58 mg/kg zinc in brown rice, while OsNAS overexpression doubled NA synthesis and significantly improved zinc allocation efficiency. It suggested that integrated cultivation techniques elevated grain zinc content to 42 mg/kg, with a yield of 12750 kg/hm2, achieving a synergistic ‘high yield-high zinc’ outcome. The review proposed that future efforts should integrate multi-omics and smart agriculture technologies to promote the industrialization of zinc-enriched rice and provide solutions for global zinc nutrition improvement.

Key words: zinc-enriched rice, molecular breeding, physiological mechanism, cultivation technique, zinc transporter, biofortification, nutritional health