Iron is one of the most important micronutrients for crop plants due to its use in important physiological processes such as photosynthesis, mitochondrial respiration, metal homeostasis, and chlorophyll synthesis. Crop plants have adapted different strategies for uptake, transport, accumulation, and storage of iron in tissues and organs which later can be consumed by humans. Estimates indicate that about 2 billion people (33% of human population) are at risk of iron deficiency in which infants, children, and pregnant women are potentially compromised. Biofortification refers to the increase in concentration of micronutrients in edible parts of plants and understanding the pathways for iron accumulation in plants is necessary for breeding iron‐enriched crops. Iron‐biofortified crops are also one of the key factors in achieving multiple United Nations Sustainable Development goals. This review article covers different strategies of iron acquisition and transport in plants, its bioavailability, coping with the iron deficiency as a global perspective, the current status of iron biofortification, and how breeding future biofortified crops could be helpful in combating the said issue in a sustainable manner.

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作物铁生物强化的分子基础；迈向可持续发展的一步

铁是农作物最重要的微量营养元素之一，因为它用于重要的生理过程，例如光合作用，线粒体呼吸，金属稳态和叶绿素合成。作物已经适应了组织，器官中铁的吸收，运输，积累和储存的不同策略，这些铁后来可以被人类消耗。据估计，大约有20亿人（占人口的33％）有铁缺乏的风险，婴儿，儿童和孕妇可能受到铁缺乏的危害。生物强化是指植物可食部分中微量营养素的浓度增加，并且了解植物中铁积累的途径对于育种富铁作物是必要的。铁强化作物也是实现联合国多个可持续发展目标的关键因素之一。这篇综述文章涵盖了植物中铁的获取和运输的不同策略，其生物利​​用度，从全球角度应对铁缺乏症，铁生物强化的现状以及未来生物强化农作物的育种如何有助于解决该问题。可持续的方式。