Leskova Alexandra, Xiong Tou C, Mari Stéphane, Curie Catherine
IPSiM, University of Montpellier, CNRS, INRAE, Institut Agro, Montpellier, France.
Quant Plant Biol. 2025 Jun 9;6:e14. doi: 10.1017/qpb.2025.11. eCollection 2025.
Iron (Fe) is an essential element in plants, involved in numerous metabolic processes including photosynthesis. Its cellular concentration must be regulated accurately to avoid toxicity while meeting metabolic demands. This review explores the distribution, dynamics, and regulation of Fe pools in plant cells, focusing on recent advances in imaging and quantification techniques. We discuss the major Fe compartments-chloroplasts, vacuoles, apoplasts-and their interaction to maintain Fe homeostasis, as well as novel methodologies like single-cell ICP-MS that have transformed our understanding of Fe localization. By summarizing the current knowledge on intracellular Fe dynamics and the complex interplay between different Fe pools, we provide insights into the mechanisms that underpin Fe regulation in plants, which is crucial for future breeding programs aimed at improving plant resilience and nutritional quality.
铁（Fe）是植物中的一种必需元素，参与包括光合作用在内的众多代谢过程。其细胞内浓度必须精确调节，以避免毒性，同时满足代谢需求。本综述探讨了植物细胞中铁池的分布、动态变化和调节，重点关注成像和定量技术的最新进展。我们讨论了主要的铁区室——叶绿体、液泡、质外体——以及它们为维持铁稳态而进行的相互作用，还有像单细胞电感耦合等离子体质谱这样的新方法，这些方法改变了我们对铁定位的理解。通过总结目前关于细胞内铁动态变化以及不同铁池之间复杂相互作用的知识，我们深入了解了植物中铁调节的基础机制，这对于未来旨在提高植物抗逆性和营养品质的育种计划至关重要。
