The molecular mechanisms of iron uptake and transport, isotopic fractionation patterns, and subcellular localization characteristics in rice
Iron is an essential micronutrient for plant growth, development, and metabolism, playing a critical role in rice productivity, stress resistance, and grain nutritional quality. This study systematically investigated the molecular mechanisms of iron uptake and transport in rice, with a focus on the...
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| Published in | Resources Data Journal Vol. 4; pp. 191 - 204 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English Japanese |
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Resources Economics Research Board
20.06.2025
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| Abstract | Iron is an essential micronutrient for plant growth, development, and metabolism, playing a critical role in rice productivity, stress resistance, and grain nutritional quality. This study systematically investigated the molecular mechanisms of iron uptake and transport in rice, with a focus on the pivotal roles of iron transport proteins in root absorption, translocation to aboveground tissues, and phloem-mediated distribution to grains. The synergistic and antagonistic interactions between iron and other metal elements, such as zinc and cadmium, during absorption were also elucidated. Furthermore, by analyzing iron isotopic fractionation behavior in the soil-plant system, the study revealed the characteristics and ecological significance of isotopic fractionation during iron cycling, phase transformation, and chelation processes. Using high-resolution spectroscopic techniques, including X-ray fluorescence spectroscopy and synchrotron radiation X-ray absorption spectroscopy, the subcellular localization of iron was examined, uncovering its distribution across different subcellular components and its impact on rice iron metabolism. This integrative research provides a comprehensive understanding of the molecular mechanisms, isotopic fractionation patterns, and subcellular distribution of iron in rice, offering theoretical insights into the dynamic behavior of iron within the plant. The findings not only propose new strategies for improving rice iron use efficiency and grain nutritional value but also provide scientific evidence and technical references for addressing heavy metal contamination and enhancing soil environmental quality. |
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| AbstractList | Iron is an essential micronutrient for plant growth, development, and metabolism, playing a critical role in rice productivity, stress resistance, and grain nutritional quality. This study systematically investigated the molecular mechanisms of iron uptake and transport in rice, with a focus on the pivotal roles of iron transport proteins in root absorption, translocation to aboveground tissues, and phloem-mediated distribution to grains. The synergistic and antagonistic interactions between iron and other metal elements, such as zinc and cadmium, during absorption were also elucidated. Furthermore, by analyzing iron isotopic fractionation behavior in the soil-plant system, the study revealed the characteristics and ecological significance of isotopic fractionation during iron cycling, phase transformation, and chelation processes. Using high-resolution spectroscopic techniques, including X-ray fluorescence spectroscopy and synchrotron radiation X-ray absorption spectroscopy, the subcellular localization of iron was examined, uncovering its distribution across different subcellular components and its impact on rice iron metabolism. This integrative research provides a comprehensive understanding of the molecular mechanisms, isotopic fractionation patterns, and subcellular distribution of iron in rice, offering theoretical insights into the dynamic behavior of iron within the plant. The findings not only propose new strategies for improving rice iron use efficiency and grain nutritional value but also provide scientific evidence and technical references for addressing heavy metal contamination and enhancing soil environmental quality. |
| Author | Li, Sixiang Huang, Jianhao Yu, Anfeng |
| Author_xml | – sequence: 1 fullname: Huang, Jianhao organization: Yangzhou Academy of Agricultural Sciences – sequence: 1 fullname: Li, Sixiang organization: Yangzhou Academy of Agricultural Sciences – sequence: 1 fullname: Yu, Anfeng organization: Yangzhou Academy of Agricultural Sciences |
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| References | [1] Li J, Yu H, Yang S, et al. Research progress on molecular regulatory mechanisms of iron uptake in plants. Plant Physiology Journal, 2016, 52(6), 835-842. [20] Tang Q, Cai X, Yin D, et al. Synchrotron X-ray imaging tags based on click chemistry. Acta Chimica Sinica, 2023, 81(5), 441-444. [3] Su Y, Quan Y, Huan Z, et al. Effects of phosphorus-modified biochar on remediation of lead-zinc contaminated soil around a lead-zinc mine in Yunnan Province. Ecology and Environmental Sciences, 2022, 31(3), 593-602. [4] Xu S, Zhu J, Wang D, et al. Effects of plant intercropping system on remediation of cadmium-contaminated farmland soil: A case study in southern Jiangsu region. China Environmental Science, 2024, 44(6), 3289-3300. [10] Fang B, Xiao T, Su N, et al. Research progress on cadmium uptake and translocation-accumulation in various organs of rice. Chinese Journal of Rice Science, 2021, 35(3), 225-237. [18] Zhang N, Shangguan Z, Chen J. Molecular physiological mechanisms and regulation of plant responses to iron deficiency stress. Journal of Plant Nutrition and Fertilizers, 2018, 24(5), 1365-1377. [19] Liu P, Yang J. Application of digital technology in visible spectral analysis of chromium element in iron-based alloys. Rock and Mineral Analysis, 2008, 27(1), 33-36. [13] Wu Y, Wen Q, Zhu H, et al. Effects of different forms of iron application during key growth stages on cadmium uptake in rice. Research of Agricultural Modernization, 2025, 46(2), 376-387. [15] Sun B, Ren J, Zhang J, et al. Study on diagenetic cycling of manganese, iron and sulfur and diffusion fluxes of iron and manganese in sediments of Laizhou Bay, Bohai Sea. Acta Oceanologica Sinica, 2024, 46(9), 14-26. [6] Wang D, Tan W, Zeng P, et al. Effects of iron-manganese modified biochar on cadmium uptake in rice and soil microbial community. China Environmental Science, 2024, 44(4), 2297-2308. [14] Yu W, Zhou Q, Du Y, et al. The formation process of manganese-rich sediments from a geobiological perspective: Principles, evidence and models. Earth Science, 2025, 50(3), 1142-1161. [7] Fang Q, Yang L, Qiu X, et al. A new tool for mineral-microorganism interaction research: Three-dimensional atom probe. Earth Science, 2025, 50(3), 1201-1219. [23] Zhang M, Gao J, Deng G, et al. Research progress on abscisic acid regulation of iron metabolism in plants. Chinese Journal of Biotechnology, 2022, 38(8), 2725-2737. [16] Li F, Li Y. Research progress on biogeochemical processes of iron and iron isotope fractionation mechanisms in paddy field systems. Ecology and Environmental Sciences, 2019, 28(6), 1251-1260. [17] Sha Z, Zhao Z, Lu L, et al. Research progress on plant economics. Journal of Plant Nutrition and Fertilizers, 2017, 23(5), 1370-1377. [12] Cheng W, Wu M, Zhao Y, et al. Research progress on zinc isotope environmental geochemistry. Geological Journal of China Universities, 2024, 30(3), 312-321. [11] Pu W, Dai X, Yue J, et al. Research progress on iron signaling and its role in plant-pathogen interactions. Progress in Biotechnology, 2025, 15(1), 1-10. [21] Hu L, Zhang D, Lou W, et al. LA-ICP-MS trace element determination and geochemical characteristics of magnetite in evaporite-bearing iron deposits. Rock and Mineral Analysis, 2022, 41(4), 564-574. [9] Huang Y, Zhao Y, Cui L, et al. Research progress on the effects of plant hormones and other regulatory factors on rice root growth and development. Fujian Journal of Agricultural Sciences, 2025, 40(1), 99-111. [8] Hu M, Zhang P, Liu B, et al. Determination of silicon, aluminum, iron and potassium in soil by high-pressure sample preparation-laser-induced breakdown spectroscopy. Spectroscopy and Spectral Analysis, 2023, 43(7), 2174-2180. [2] Qiu Y, Liu K, Zhuo X, et al. A review on physiological functions of iron and its effects on rice yield and quality. China Rice, 2022, 28(1), 43-47. [5] Cheng J, Liu X, Yu X, et al. Research progress on the iron element in rice. Journal of Henan Agricultural Sciences, 2021, 50(6), 1-8. [22] Yang X, Fu Y, Shen H, et al. A review on morphological, physiological and molecular mechanisms of iron plaque formation on rice root surface. Chinese Journal of Ecology, 2014, 33(8), 2235-2244. |
| References_xml | – reference: [8] Hu M, Zhang P, Liu B, et al. Determination of silicon, aluminum, iron and potassium in soil by high-pressure sample preparation-laser-induced breakdown spectroscopy. Spectroscopy and Spectral Analysis, 2023, 43(7), 2174-2180. – reference: [10] Fang B, Xiao T, Su N, et al. Research progress on cadmium uptake and translocation-accumulation in various organs of rice. Chinese Journal of Rice Science, 2021, 35(3), 225-237. – reference: [14] Yu W, Zhou Q, Du Y, et al. The formation process of manganese-rich sediments from a geobiological perspective: Principles, evidence and models. Earth Science, 2025, 50(3), 1142-1161. – reference: [17] Sha Z, Zhao Z, Lu L, et al. Research progress on plant economics. Journal of Plant Nutrition and Fertilizers, 2017, 23(5), 1370-1377. – reference: [18] Zhang N, Shangguan Z, Chen J. Molecular physiological mechanisms and regulation of plant responses to iron deficiency stress. Journal of Plant Nutrition and Fertilizers, 2018, 24(5), 1365-1377. – reference: [5] Cheng J, Liu X, Yu X, et al. Research progress on the iron element in rice. Journal of Henan Agricultural Sciences, 2021, 50(6), 1-8. – reference: [4] Xu S, Zhu J, Wang D, et al. Effects of plant intercropping system on remediation of cadmium-contaminated farmland soil: A case study in southern Jiangsu region. China Environmental Science, 2024, 44(6), 3289-3300. – reference: [1] Li J, Yu H, Yang S, et al. Research progress on molecular regulatory mechanisms of iron uptake in plants. Plant Physiology Journal, 2016, 52(6), 835-842. – reference: [2] Qiu Y, Liu K, Zhuo X, et al. A review on physiological functions of iron and its effects on rice yield and quality. China Rice, 2022, 28(1), 43-47. – reference: [3] Su Y, Quan Y, Huan Z, et al. Effects of phosphorus-modified biochar on remediation of lead-zinc contaminated soil around a lead-zinc mine in Yunnan Province. Ecology and Environmental Sciences, 2022, 31(3), 593-602. – reference: [19] Liu P, Yang J. Application of digital technology in visible spectral analysis of chromium element in iron-based alloys. Rock and Mineral Analysis, 2008, 27(1), 33-36. – reference: [21] Hu L, Zhang D, Lou W, et al. LA-ICP-MS trace element determination and geochemical characteristics of magnetite in evaporite-bearing iron deposits. Rock and Mineral Analysis, 2022, 41(4), 564-574. – reference: [9] Huang Y, Zhao Y, Cui L, et al. Research progress on the effects of plant hormones and other regulatory factors on rice root growth and development. Fujian Journal of Agricultural Sciences, 2025, 40(1), 99-111. – reference: [16] Li F, Li Y. Research progress on biogeochemical processes of iron and iron isotope fractionation mechanisms in paddy field systems. Ecology and Environmental Sciences, 2019, 28(6), 1251-1260. – reference: [22] Yang X, Fu Y, Shen H, et al. A review on morphological, physiological and molecular mechanisms of iron plaque formation on rice root surface. Chinese Journal of Ecology, 2014, 33(8), 2235-2244. – reference: [11] Pu W, Dai X, Yue J, et al. Research progress on iron signaling and its role in plant-pathogen interactions. Progress in Biotechnology, 2025, 15(1), 1-10. – reference: [15] Sun B, Ren J, Zhang J, et al. Study on diagenetic cycling of manganese, iron and sulfur and diffusion fluxes of iron and manganese in sediments of Laizhou Bay, Bohai Sea. Acta Oceanologica Sinica, 2024, 46(9), 14-26. – reference: [13] Wu Y, Wen Q, Zhu H, et al. Effects of different forms of iron application during key growth stages on cadmium uptake in rice. Research of Agricultural Modernization, 2025, 46(2), 376-387. – reference: [7] Fang Q, Yang L, Qiu X, et al. A new tool for mineral-microorganism interaction research: Three-dimensional atom probe. Earth Science, 2025, 50(3), 1201-1219. – reference: [6] Wang D, Tan W, Zeng P, et al. Effects of iron-manganese modified biochar on cadmium uptake in rice and soil microbial community. China Environmental Science, 2024, 44(4), 2297-2308. – reference: [12] Cheng W, Wu M, Zhao Y, et al. Research progress on zinc isotope environmental geochemistry. Geological Journal of China Universities, 2024, 30(3), 312-321. – reference: [23] Zhang M, Gao J, Deng G, et al. Research progress on abscisic acid regulation of iron metabolism in plants. Chinese Journal of Biotechnology, 2022, 38(8), 2725-2737. – reference: [20] Tang Q, Cai X, Yin D, et al. Synchrotron X-ray imaging tags based on click chemistry. Acta Chimica Sinica, 2023, 81(5), 441-444. |
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| Title | The molecular mechanisms of iron uptake and transport, isotopic fractionation patterns, and subcellular localization characteristics in rice |
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