1
|
Wairich A, Aung MS, Ricachenevsky FK, Masuda H. You can't always get as much iron as you want: how rice plants deal with excess of an essential nutrient. FRONTIERS IN PLANT SCIENCE 2024; 15:1381856. [PMID: 39100081 PMCID: PMC11294178 DOI: 10.3389/fpls.2024.1381856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 06/10/2024] [Indexed: 08/06/2024]
Abstract
Iron (Fe) is an essential nutrient for almost all organisms. However, free Fe within cells can lead to damage to macromolecules and oxidative stress, making Fe concentrations tightly controlled. In plants, Fe deficiency is a common problem, especially in well-aerated, calcareous soils. Rice (Oryza sativa L.) is commonly cultivated in waterlogged soils, which are hypoxic and can cause Fe reduction from Fe3+ to Fe2+, especially in low pH acidic soils, leading to high Fe availability and accumulation. Therefore, Fe excess decreases rice growth and productivity. Despite the widespread occurrence of Fe excess toxicity, we still know little about the genetic basis of how rice plants respond to Fe overload and what genes are involved in variation when comparing genotypes with different tolerance levels. Here, we review the current knowledge about physiological and molecular data on Fe excess in rice, providing a comprehensive summary of the field.
Collapse
Affiliation(s)
- Andriele Wairich
- Department of Agronomy and Crop Physiology, Justus Liebig University Giessen, Giessen, Germany
| | - May Sann Aung
- Department of Biological Production, Faculty of Bioresource Sciences, Akita Prefectural University, Akita, Japan
| | - Felipe Klein Ricachenevsky
- Botany Department, Institute of Biosciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Center of Biotechnology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Hiroshi Masuda
- Department of Biological Production, Faculty of Bioresource Sciences, Akita Prefectural University, Akita, Japan
| |
Collapse
|
2
|
Yamaji N, Yoshioka Y, Huang S, Miyaji T, Sasaki A, Ma JF. An oligo peptide transporter family member, OsOPT7, mediates xylem unloading of Fe for its preferential distribution in rice. THE NEW PHYTOLOGIST 2024; 242:2620-2634. [PMID: 38600023 DOI: 10.1111/nph.19756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 03/26/2024] [Indexed: 04/12/2024]
Abstract
Iron (Fe) needs to be delivered to different organs and tissues of above-ground parts for playing its multiple physiological functions once it is taken up by the roots. However, the mechanisms underlying Fe distribution are poorly understood. We functionally characterized OsOPT7, a member of oligo peptide transporter family in terms of expression patterns, localization, transport activity and phenotypic analysis of knockdown lines. OsOPT7 was highly expressed in the nodes, especially in the uppermost node I, and its expression was upregulated by Fe-deficiency. OsOPT7 transports ferrous iron into the cells coupled with proton. Immunostaining revealed that OsOPT7 is mainly localized in the xylem parenchyma cells of the enlarged vascular bundles in the nodes and vascular tissues in the leaves. Knockdown of OsOPT7 did not affect the Fe uptake, but altered Fe distribution; less Fe was distributed to the new leaf, upper nodes and developing panicle, but more Fe was distributed to the old leaves. Furthermore, knockdown of OsOPT7 also resulted in less Fe distribution to the leaf sheath, but more Fe to the leaf blade. Taken together, OsOPT7 is involved in the xylem unloading of Fe for both long-distance distribution to the developing organs and local distribution within the leaf in rice.
Collapse
Affiliation(s)
- Naoki Yamaji
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Yuma Yoshioka
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Tsushima Naka 1-1-1, Kita, Okayama, 700-8530, Japan
| | - Sheng Huang
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Takaaki Miyaji
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Tsushima Naka 1-1-1, Kita, Okayama, 700-8530, Japan
- Department of Genomics & Proteomics, Advanced Science Research Center, Okayama University, Tsushima Naka 1-1-1, Kita, Okayama, 700-8530, Japan
| | - Akimasa Sasaki
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| |
Collapse
|
3
|
Bhat MA, Mishra AK, Shah SN, Bhat MA, Jan S, Rahman S, Baek KH, Jan AT. Soil and Mineral Nutrients in Plant Health: A Prospective Study of Iron and Phosphorus in the Growth and Development of Plants. Curr Issues Mol Biol 2024; 46:5194-5222. [PMID: 38920984 PMCID: PMC11201952 DOI: 10.3390/cimb46060312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/17/2024] [Accepted: 05/19/2024] [Indexed: 06/27/2024] Open
Abstract
Plants being sessile are exposed to different environmental challenges and consequent stresses associated with them. With the prerequisite of minerals for growth and development, they coordinate their mobilization from the soil through their roots. Phosphorus (P) and iron (Fe) are macro- and micronutrient; P serves as an important component of biological macromolecules, besides driving major cellular processes, including photosynthesis and respiration, and Fe performs the function as a cofactor for enzymes of vital metabolic pathways. These minerals help in maintaining plant vigor via alterations in the pH, nutrient content, release of exudates at the root surface, changing dynamics of root microbial population, and modulation of the activity of redox enzymes. Despite this, their low solubility and relative immobilization in soil make them inaccessible for utilization by plants. Moreover, plants have evolved distinct mechanisms to cope with these stresses and coregulate the levels of minerals (Fe, P, etc.) toward the maintenance of homeostasis. The present study aims at examining the uptake mechanisms of Fe and P, and their translocation, storage, and role in executing different cellular processes in plants. It also summarizes the toxicological aspects of these minerals in terms of their effects on germination, nutrient uptake, plant-water relationship, and overall yield. Considered as an important and indispensable component of sustainable agriculture, a separate section covers the current knowledge on the cross-talk between Fe and P and integrates complete and balanced information of their effect on plant hormone levels.
Collapse
Affiliation(s)
- Mujtaba Aamir Bhat
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, J&K, India; (M.A.B.); (S.N.S.); (M.A.B.); (S.J.)
| | - Awdhesh Kumar Mishra
- Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea;
| | - Sheezma Nazir Shah
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, J&K, India; (M.A.B.); (S.N.S.); (M.A.B.); (S.J.)
| | - Mudasir Ahmad Bhat
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, J&K, India; (M.A.B.); (S.N.S.); (M.A.B.); (S.J.)
| | - Saima Jan
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, J&K, India; (M.A.B.); (S.N.S.); (M.A.B.); (S.J.)
| | - Safikur Rahman
- Department of Botany, Munshi Singh College, BR Ambedkar Bihar University, Muzaffarpur 845401, Bihar, India;
| | - Kwang-Hyun Baek
- Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea;
| | - Arif Tasleem Jan
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, J&K, India; (M.A.B.); (S.N.S.); (M.A.B.); (S.J.)
| |
Collapse
|
4
|
Li J, Chen W, Xu K, Xie W, Qi H, Tang Y, Wang S, Deng T, Morel JL, Qiu R. Fe(III) transporter OsYSL15 may play a key role in the uptake of Cr(III) in rice (Oryza sativa L.). JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133531. [PMID: 38447361 DOI: 10.1016/j.jhazmat.2024.133531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/23/2023] [Accepted: 01/12/2024] [Indexed: 03/08/2024]
Abstract
Due to the widely discharge of chromium (Cr) by mining and smelting industries, etc., contamination of paddy soils and rice has become serious problems. Therefore it is crucial to explore how rice takes up Cr. Cr(III) is the most common Cr form in the long-term water flooding paddy soils. Here, we demonstrate that OsYSL15, a key gene for Fe(III) uptake, is equally applicable for Cr(III) uptake in rice. Firstly, the antagonistic effect of Cr(III) and Fe(III) in the uptake process was found. Rice could accumulate more Cr(III) under Fe-deficient conditions. And the Fe(III) content in the protoplasts of rice root cells gradually decreased with the increase exposure of Cr(III). Knockdown of OsYSL15 in rice significantly reduced the Cr(III) uptake rate. Compared with wild type rice, the accumulation of Cr(III) in OsYSL15 mutant was decreased by 40.7%- 70.6% after gene editing. These results indicate that OsYSL15 is a key gene responsible for Cr(III) uptake in rice, which can guide the screening or genetic modification for low-Cr-accumulation rice varieties.
Collapse
Affiliation(s)
- Jingjing Li
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Wenzhen Chen
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Kairan Xu
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Weipeng Xie
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Hua Qi
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yetao Tang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Shizhong Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Tenghaobo Deng
- Institute of Quality Standard and Monitoring Technology for Agro-products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
| | - Jean-Louis Morel
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Laboratoire Sols et Environnement, INRAE-Université de Lorraine, Vandoeuvre-lès-Nancy F-54518, France
| | - Rongliang Qiu
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China.
| |
Collapse
|
5
|
Qi Y, Lu C, Pang C, Huang Y, Yu Y, Yang H, Dong CH, Yu Y. The Arabidopsis RTH plays an important role in regulation of iron (Fe) absorption and transport. PLANT CELL REPORTS 2024; 43:133. [PMID: 38687356 DOI: 10.1007/s00299-024-03214-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/03/2024] [Indexed: 05/02/2024]
Abstract
KEY MESSAGE RTH may activate Fe assimilation related genes to promote Fe absorption, transport and accumulation in Arabidopsis. Iron (Fe) is an important nutrient element. The Fe absorption and transport in plants are well investigated over the past decade. Our previous work indicated that RTE1-HOMOLOG (RTH), the homologous gene of reversion-to-ethylene sensitivity 1 (RTE1), plays a role in ethylene signaling pathway. However, its function in Fe absorption and transport is largely unknown. In the present study, we found that RTH was expressed in absorptive tissue and conducting tissue, including root hairs, root vascular bundle, and leaf veins. Under high Fe concentration, the seedling growth of rth-1 mutant was better, while the RTH overexpression lines were retarded compared to the wild type (Col-0). When treated with EDTA-Fe3+ (400 μM), the chlorophyll content and ion leakage rate were higher and lower in rth-1 than those of Col-0, respectively. By contrast, the chlorophyll contents and ion leakage rates of RTH overexpression lines were decreased and hastened compared with Col-0, respectively. Fe measurement indicated that the Fe contents of rth-1 were lower than those of Col-0, whereas those of RTH overexpression lines were comparably higher. Gene expression analysis revealed that Fe absorption and transport genes AHA2, IRT1, FIT, FPN1, and YSL1 decreased in rth-1 but increased in RTH overexpression lines compared with Col-0. Additionally, Y2H (yeast two-hybrid) and BiFC (bimolecular fluorescence complementation) assays showed that RTH can physically interact with hemoglobin 1 (HB1) and HB2. All these findings suggest that RTH may play an important role in regulation of Fe absorption, transport, and accumulation in Arabidopsis.
Collapse
Affiliation(s)
- Yanan Qi
- Shandong Key Laboratory of Plant Biotechnology, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Chen Lu
- Shandong Key Laboratory of Plant Biotechnology, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Cuijing Pang
- Shandong Key Laboratory of Plant Biotechnology, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Youju Huang
- Shandong Key Laboratory of Plant Biotechnology, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yongbo Yu
- Shandong Key Laboratory of Plant Biotechnology, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Hongbing Yang
- Shandong Key Laboratory of Plant Biotechnology, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Chun-Hai Dong
- Shandong Key Laboratory of Plant Biotechnology, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yanchong Yu
- Shandong Key Laboratory of Plant Biotechnology, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China.
| |
Collapse
|
6
|
Chandra AK, Pandey D, Sood S, Joshi DC, Tiwari A, Sharma D, Gururani K, Kumar A. Uncovering the genomic regions underlying grain iron and zinc content using genome-wide association mapping in finger millet. 3 Biotech 2024; 14:47. [PMID: 38268987 PMCID: PMC10803704 DOI: 10.1007/s13205-023-03889-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 12/14/2023] [Indexed: 01/26/2024] Open
Abstract
Finger millet, being rich source of essential minerals like iron and zinc, is an ideal model to identify candidate genes contributing to high grain iron content (GIC) and zinc content (GZC) in plants. Hence, finger millet diversity panel comprised of 202 genotypes was evaluated in two geographical locations and found to have a wide variation for GIC and GZC. A genome-wide association study using 2977 single nucleotide polymorphism (SNP) markers identified reliable marker-trait associations (MTAs). The use of general linear model (GLM) and mixed linear model (MLM) approaches revealed 5 and 8 common MTAs linked to GIC and GZC, respectively, for both Almora and Pantnagar locations, with a high level of significance (P < 0.01). However, 12 significant MTAs were found to be linked with GIC for Pantnagar location alone. The MTAs were associated with specific genes that produce ferritin (Fer1), iron-regulated transporter-like protein (IRT2), and yellow stripe-like 2 proteins (YSL2). These genes are likely linked to GIC variation in finger millet. Additionally, the variation in GZC in finger millet was connected to genes that encode zinc transporters, namely ZIP1 protein (ZIP1) and ZTP29-like protein (ZTP29). Compared to low GIC and GZC genotypes, high GIC and GZC genotypes exhibited greater relative expression of these genes. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03889-1.
Collapse
Affiliation(s)
- Ajay Kumar Chandra
- Department of Molecular Biology and Genetic Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | - Dinesh Pandey
- Department of Molecular Biology and Genetic Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
| | - Salej Sood
- Crop Improvement Division, Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - Dinesh Chandra Joshi
- ICAR-Vivekananda Institute of Hill Agriculture, Almora, Uttarakhand 263601 India
| | - Apoorv Tiwari
- Department of Molecular Biology and Genetic Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
- Department of Computer Science and Information Technology, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, Uttar Pradesh 211007 India
| | - Divya Sharma
- Department of Molecular Biology and Genetic Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
- Department of Botany, Delhi University, North Campus, Delhi, 110007 India
| | - Kavita Gururani
- Department of Molecular Biology and Genetic Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
| | - Anil Kumar
- Department of Molecular Biology and Genetic Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263145 India
- Rani Lakshmi Bai Central Agricultural University, Jhansi, Uttar Pradesh 284003 India
| |
Collapse
|
7
|
Song Z, Li S, Li Y, Zhou X, Liu X, Yang W, Chen R. Identification and characterization of yellow stripe-like genes in maize suggest their roles in the uptake and transport of zinc and iron. BMC PLANT BIOLOGY 2024; 24:3. [PMID: 38163880 PMCID: PMC10759363 DOI: 10.1186/s12870-023-04691-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Yellow Stripe-Like (YSL) proteins are involved in the uptake and transport of metal ions. They play important roles in maintaining the zinc and iron homeostasis in Arabidopsis, rice (Oryza sativa), and barley (Hordeum vulgare). However, proteins in this family have not been fully identified and comprehensively analyzed in maize (Zea mays L.). RESULTS In this study, we identified 19 ZmYSLs in the maize genome and analyzed their structural features. The results of a phylogenetic analysis showed that ZmYSLs are homologous to YSLs of Arabidopsis and rice, and these proteins are divided into four independent branches. Although their exons and introns have structural differences, the motif structure is relatively conserved. Analysis of the cis-regulatory elements in the promoters indicated that ZmYSLs might play a role in response to hypoxia and light. The results of RNA sequencing and quantitative real-time PCR analysis revealed that ZmYSLs are expressed in various tissues and respond differently to zinc and iron deficiency. The subcellular localization of ZmYSLs in the protoplast of maize mesophyll cells showed that they may function in the membrane system. CONCLUSIONS This study provided important information for the further functional analysis of ZmYSL, especially in the spatio-temporal expression and adaptation to nutrient deficiency stress. Our findings provided important genes resources for the maize biofortification.
Collapse
Affiliation(s)
- Zizhao Song
- Crop Functional Genome Research Center, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- CAS Center for Excellence in Biotic Interactions, College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Suzhen Li
- Crop Functional Genome Research Center, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yu Li
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071000, China
| | - Xiaojin Zhou
- Crop Functional Genome Research Center, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiaoqing Liu
- Crop Functional Genome Research Center, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Wenzhu Yang
- Crop Functional Genome Research Center, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Rumei Chen
- Crop Functional Genome Research Center, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| |
Collapse
|
8
|
Li J, Liu Y, Kong L, Xu E, Zou Y, Zhang P, Zhang W, Chen X. An intracellular transporter OsNRAMP7 is required for distribution and accumulation of iron into rice grains. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 336:111831. [PMID: 37598889 DOI: 10.1016/j.plantsci.2023.111831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/01/2023] [Accepted: 08/12/2023] [Indexed: 08/22/2023]
Abstract
Iron (Fe) is an essential micronutrient for plant growth and human health. Plants have evolved an efficient transport system for absorbing and redistributing Fe from the soil to other organs; however, the molecular mechanisms underlying Fe loading into grains are poorly understood. Our study shows that OsNRAMP7, a member of the natural resistance-associated macrophage protein (NRAMP) family, is a rice Fe transporter that localizes to the Golgi and trans-Golgi network (TGN). OsNRAMP7 was highly expressed in leaf blade, node I, pollen, and vascular tissues of almost tissues at the rice flowering stage. OsNRAMP7 knockdown by RNA interference (RNAi) increased Fe accumulation in the flag leaf blade, but decreased the Fe concentration in node I and rice grains. In addition, the knockdown of OsNRAMP7 also reduced grain fertility, pollen viability, and grain Fe concentration in the paddy fields; OsNRAMP7 overexpression significantly promoted Fe accumulation in the grains. Thus, our results suggest that OsNRAMP7 is required for the distribution and accumulation of Fe in rice grains and its overexpression could be a novel strategy for Fe biofortification in staple food crops.
Collapse
Affiliation(s)
- Jingjun Li
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yuanyuan Liu
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Linghui Kong
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Ending Xu
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yu Zou
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230031, China
| | - Peijiang Zhang
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230031, China
| | - Wei Zhang
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Xi Chen
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| |
Collapse
|
9
|
Moyne C, Sterckeman T. Effect of calcium and trace metals (Cd, Cu, Mn, Ni, Zn) on root iron uptake in relation to chemical properties of the root-excreted ligands. Biometals 2023; 36:1013-1025. [PMID: 37043128 DOI: 10.1007/s10534-023-00500-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/20/2023] [Indexed: 04/13/2023]
Abstract
Interferences of major cations (Ca2+, Mg2+) and trace metals (TM, i.e. Cd2+, Cu2+, Mn2+, Ni2+ and Zn2+) in root Fe uptake were evaluated. Root Fe uptake was modelled including the reactions of the root exuded ligand with the soil major and trace cations. Fe uptake was simulated with different ligands representing various affinities for the cations, the latter varying in concentration. The stability constant of Fe complexes (KFeL) does not influence Fe uptake, contrarily to the ligand parameters for Fe-hydroxide dissolution. Fe uptake decreases when KCaL or Ca2+ in solution increases. Presence of TM has nearly no influence on Fe uptake when the TM complexes have low stability constants (KML), as in the case of oxalate and citrate complexes. When ligands have high KML, like EDTA, DFO-B or mugineic acid (MA), TM reduces Fe uptake by 51-55%, and much more in the case of TM contamination. Exudation of Fe ligands with low KML has no negative effect on TM uptake, which can increase if the dissociation rate is high, as for Cu complexes. Ligands with high KML (EDTA, DFO-B, MA) greatly reduce TM uptake, only if their hydrated cations can be absorbed. Calcium does not significantly reduce Fe uptake when Ca-complexes have KCaL < 104. Consequently, ligands like oxalate or MA should be efficient in most soils. TM should perturbate Fe uptake mediated by ligands with high KML such as MA, but not oxalate. Plants exuding phytosiderophores should also absorb TM complexes to avoid micronutrient deficiencies.
Collapse
Affiliation(s)
- Christian Moyne
- Laboratoire Énergies et Mécanique Théorique et Appliquée, Université de Lorraine, CNRS, 54000, Nancy, France
| | - Thibault Sterckeman
- Laboratoire Sols et Environnement, Université de Lorraine, INRAE, 54000, Nancy, France.
| |
Collapse
|
10
|
Spielmann J, Fanara S, Cotelle V, Vert G. Multilayered regulation of iron homeostasis in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2023; 14:1250588. [PMID: 37841618 PMCID: PMC10570522 DOI: 10.3389/fpls.2023.1250588] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/07/2023] [Indexed: 10/17/2023]
Abstract
Iron (Fe) is an essential micronutrient for plant growth and development due to its role in crucial processes such as photosynthesis and modulation of the redox state as an electron donor. While Fe is one of the five most abundant metals in the Earth's crust, it is poorly accessible to plants in alkaline soils due to the formation of insoluble complexes. To limit Fe deficiency symptoms, plant have developed a highly sophisticated regulation network including Fe sensing, transcriptional regulation of Fe-deficiency responsive genes, and post-translational modifications of Fe transporters. In this mini-review, we detail how plants perceive intracellular Fe status and how they regulate transporters involved in Fe uptake through a complex cascade of transcription factors. We also describe the current knowledge about intracellular trafficking, including secretion to the plasma membrane, endocytosis, recycling, and degradation of the two main Fe transporters, IRON-REGULATED TRANSPORTER 1 (IRT1) and NATURAL RESISTANCE ASSOCIATED MACROPHAGE PROTEIN 1 (NRAMP1). Regulation of these transporters by their non-Fe substrates is discussed in relation to their functional role to avoid accumulation of these toxic metals during Fe limitation.
Collapse
Affiliation(s)
- Julien Spielmann
- Plant Science Research Laboratory (LRSV), University of Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Steven Fanara
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging, Department of Life Sciences, University of Liège, Liège, Belgium
| | - Valérie Cotelle
- Plant Science Research Laboratory (LRSV), University of Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Grégory Vert
- Plant Science Research Laboratory (LRSV), University of Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| |
Collapse
|
11
|
Seregin IV, Kozhevnikova AD. Nicotianamine: A Key Player in Metal Homeostasis and Hyperaccumulation in Plants. Int J Mol Sci 2023; 24:10822. [PMID: 37446000 DOI: 10.3390/ijms241310822] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/22/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
Nicotianamine (NA) is a low-molecular-weight N-containing metal-binding ligand, whose accumulation in plant organs changes under metal deficiency or excess. Although NA biosynthesis can be induced in vivo by various metals, this non-proteinogenic amino acid is mainly involved in the detoxification and transport of iron, zinc, nickel, copper and manganese. This review summarizes the current knowledge on NA biosynthesis and its regulation, considers the mechanisms of NA secretion by plant roots, as well as the mechanisms of intracellular transport of NA and its complexes with metals, and its role in radial and long-distance metal transport. Its role in metal tolerance is also discussed. The NA contents in excluders, storing metals primarily in roots, and in hyperaccumulators, accumulating metals mainly in shoots, are compared. The available data suggest that NA plays an important role in maintaining metal homeostasis and hyperaccumulation mechanisms. The study of metal-binding compounds is of interdisciplinary significance, not only regarding their effects on metal toxicity in plants, but also in connection with the development of biofortification approaches to increase the metal contents, primarily of iron and zinc, in agricultural plants, since the deficiency of these elements in food crops seriously affects human health.
Collapse
Affiliation(s)
- Ilya V Seregin
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St., 35, 127276 Moscow, Russia
| | - Anna D Kozhevnikova
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya St., 35, 127276 Moscow, Russia
| |
Collapse
|
12
|
Chen X, Zhao Y, Zhong Y, Chen J, Qi X. Deciphering the functional roles of transporter proteins in subcellular metal transportation of plants. PLANTA 2023; 258:17. [PMID: 37314548 DOI: 10.1007/s00425-023-04170-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/31/2023] [Indexed: 06/15/2023]
Abstract
MAIN CONCLUSION The role of transporters in subcellular metal transport is of great significance for plants in coping with heavy metal stress and maintaining their proper growth and development. Heavy metal toxicity is a serious long-term threat to plant growth and agricultural production, becoming a global environmental concern. Excessive heavy metal accumulation not only damages the biochemical and physiological functions of plants but also causes chronic health hazard to human beings through the food chain. To deal with heavy metal stress, plants have evolved a series of elaborate mechanisms, especially a variety of spatially distributed transporters, to strictly regulate heavy metal uptake and distribution. Deciphering the subcellular role of transporter proteins in controlling metal absorption, transport and separation is of great significance for understanding how plants cope with heavy metal stress and improving their adaptability to environmental changes. Hence, we herein introduce the detrimental effects of excessive common essential and non-essential heavy metals on plant growth, and describe the structural and functional characteristics of transporter family members, with a particular emphasis on their roles in maintaining heavy metal homeostasis in various organelles. Besides, we discuss the potential of controlling transporter gene expression by transgenic approaches in response to heavy metal stress. This review will be valuable to researchers and breeders for enhancing plant tolerance to heavy metal contamination.
Collapse
Affiliation(s)
- Xingqi Chen
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Yuanchun Zhao
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Yuqing Zhong
- Environmental Monitoring Station of Suzhou City, Suzhou, 215004, China
| | - Jiajia Chen
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Xin Qi
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, 215011, China.
| |
Collapse
|
13
|
Gong XR, Zhang SN, Ye LN, Luo JJ, Zhang C. Cross talk between Cu excess and Fe deficiency in the roots of rice. Gene 2023; 874:147491. [PMID: 37207827 DOI: 10.1016/j.gene.2023.147491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 04/26/2023] [Accepted: 05/15/2023] [Indexed: 05/21/2023]
Abstract
Copper (Cu) and iron (Fe) share similar characteristics and participate as coenzymes in several physiological processes. Both Cu excess and Fe deficiency result in chlorosis, however, the crosstalk between the two is not clear in rice. In this study, we performed transcriptome analysis for Cu excess and Fe deficiency in rice. Some WRKY family members (such as WRKY26) and some bHLH family members (such as late flowering) were selected as novel potential transcription factors involved in the regulation of Cu detoxification and Fe utilization, respectively. These genes were induced under corresponding stress conditions. Many Fe uptake-related genes were induced by Cu excess, while Cu detoxification-related genes were not induced by Fe deficiency. Meanwhile, some genes, such as metallothionein 3a, gibberellin 3beta-dioxygenase 2 and WRKY11, were induced by Cu excess but repressed by Fe deficiency. Concisely, our results highlight the crosstalk between Cu excess and Fe deficiency in rice. Cu excess caused Fe deficiency response, while Fe deficiency did not lead to Cu toxicity response. Metallothionein 3a might be responsible for Cu toxicity-induced chlorosis in rice. The crosstalk between Cu excess and Fe deficiency might be regulated by gibberellic acid.
Collapse
Affiliation(s)
- Xiao-Ran Gong
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning Province 110866, China
| | - Shi-Nan Zhang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning Province 110866, China
| | - Li-Na Ye
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning Province 110866, China
| | - Jia-Jun Luo
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning Province 110866, China
| | - Chang Zhang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning Province 110866, China.
| |
Collapse
|
14
|
Zhao J, Meng X, Zhang Z, Wang M, Nie F, Liu Q. OsLPR5 Encoding Ferroxidase Positively Regulates the Tolerance to Salt Stress in Rice. Int J Mol Sci 2023; 24:ijms24098115. [PMID: 37175822 PMCID: PMC10179522 DOI: 10.3390/ijms24098115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/14/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Salinity is a major abiotic stress that harms rice growth and productivity. Low phosphate roots (LPRs) play a central role in Pi deficiency-mediated inhibition of primary root growth and have ferroxidase activity. However, the function of LPRs in salt stress response and tolerance in plants remains largely unknown. Here, we reported that the OsLPR5 was induced by NaCl stress and positively regulates the tolerance to salt stress in rice. Under NaCl stress, overexpression of OsLPR5 led to increased ferroxidase activity, more green leaves, higher levels of chlorophyll and lower MDA contents compared with the WT. In addition, OsLPR5 could promote the accumulation of cell osmotic adjustment substances and promote ROS-scavenging enzyme activities. Conversely, the mutant lpr5 had a lower ferroxidase activity and suffered severe damage under salt stress. Moreover, knock out of OsLPR5 caused excessive Na+ levels and Na+/K+ ratios. Taken together, our results exemplify a new molecular link between ferroxidase and salt stress tolerance in rice.
Collapse
Affiliation(s)
- Juan Zhao
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Xin Meng
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Zhaonian Zhang
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Mei Wang
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Fanhao Nie
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Qingpo Liu
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China
| |
Collapse
|
15
|
Vélez-Bermúdez IC, Schmidt W. Iron sensing in plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1145510. [PMID: 36968364 PMCID: PMC10032465 DOI: 10.3389/fpls.2023.1145510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
The ease of accepting or donating electrons is the raison d'être for the pivotal role iron (Fe) plays in a multitude of vital processes. In the presence of oxygen, however, this very property promotes the formation of immobile Fe(III) oxyhydroxides in the soil, which limits the concentration of Fe that is available for uptake by plant roots to levels well below the plant's demand. To adequately respond to a shortage (or, in the absence of oxygen, a possible surplus) in Fe supply, plants have to perceive and decode information on both external Fe levels and the internal Fe status. As a further challenge, such cues have to be translated into appropriate responses to satisfy (but not overload) the demand of sink (i.e., non-root) tissues. While this seems to be a straightforward task for evolution, the multitude of possible inputs into the Fe signaling circuitry suggests diversified sensing mechanisms that concertedly contribute to govern whole plant and cellular Fe homeostasis. Here, we review recent progress in elucidating early events in Fe sensing and signaling that steer downstream adaptive responses. The emerging picture suggests that Fe sensing is not a central event but occurs in distinct locations linked to distinct biotic and abiotic signaling networks that together tune Fe levels, Fe uptake, root growth, and immunity in an interwoven manner to orchestrate and prioritize multiple physiological readouts.
Collapse
Affiliation(s)
| | - Wolfgang Schmidt
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
- Genome and Systems Biology Degree Program, Academia Sinica and National Taiwan University, Taipei, Taiwan
| |
Collapse
|
16
|
Rodrigues WFC, Lisboa ABP, Lima JE, Ricachenevsky FK, Del-Bem LE. Ferrous iron uptake via IRT1/ZIP evolved at least twice in green plants. THE NEW PHYTOLOGIST 2023; 237:1951-1961. [PMID: 36626937 DOI: 10.1111/nph.18661] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Iron (Fe) is essential for virtually all organisms, being irreplaceable because of its electrochemical properties that enable many biochemical processes, including photosynthesis. Besides its abundance, Fe is generally found in the poorly soluble form of ferric iron (Fe3+ ), while most plants uptake the soluble form Fe2+ . The model angiosperm Arabidopsis thaliana, for example, captures Fe through a mechanism that lowers rhizosphere pH through proton pumping that increases Fe3+ solubility, which is then reduced by a membrane-bound reductase and transported into the cell by the zinc-regulated, iron-regulated transporter-like protein (ZIP) family protein AtIRT1. ZIP proteins are transmembrane transporters of divalent metals such as Fe2+ , Zn2+ , Mn2+ , and Cd2+ . In this work, we investigated the evolution of functional homologs of IRON-REGULATED TRANSPORTER 1/ZIP in the supergroup Archaeplastida (Viridiplantae + Rhodophyta + Glaucophyta) using 51 genomes of diverse lineages. Our analyses suggest that Fe is acquired through deeply divergent ZIP proteins in land plants and chlorophyte green algae, indicating that Fe2+ uptake by ZIP proteins evolved independently at least twice throughout green plant evolution. Our results indicate that the archetypical IRON-REGULATED TRANSPORTER (IRT) proteins from angiosperms likely emerged before the origin of land plants during early streptophyte algae terrestrialization, a process that required the evolution of Fe acquisition in terrestrial subaerial settings.
Collapse
Affiliation(s)
- Wenderson Felipe Costa Rodrigues
- Graduate Program in Bioinformatics, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
- Graduate Program in Plant Biology, Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
- Del-Bem Lab, Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
| | - Ayrton Breno P Lisboa
- Graduate Program in Bioinformatics, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
- Del-Bem Lab, Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
| | - Joni Esrom Lima
- Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
| | - Felipe Klein Ricachenevsky
- Department of Botany, Institute of Biosciences (IB), Federal University of Rio Grande do Sul (UFRGS), 91501-900, Porto Alegre, Brazil
- Graduate Program in Cellular and Molecular Biology, Center for Biotechnology, Federal University of Rio Grande do Sul (UFRGS), 91501-900, Porto Alegre, Brazil
| | - Luiz-Eduardo Del-Bem
- Graduate Program in Bioinformatics, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
- Del-Bem Lab, Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
- Department of Botany, Institute of Biological Sciences (ICB), Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, Brazil
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, MI, 48824, USA
| |
Collapse
|
17
|
Krishna TPA, Ceasar SA, Maharajan T. Biofortification of Crops to Fight Anemia: Role of Vacuolar Iron Transporters. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:3583-3598. [PMID: 36802625 DOI: 10.1021/acs.jafc.2c07727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Plant-based foods provide all the crucial nutrients for human health. Among these, iron (Fe) is one of the essential micronutrients for plants and humans. A lack of Fe is a major limiting factor affecting crop quality, production, and human health. There are people who suffer from various health problems due to the low intake of Fe in their plant-based foods. Anemia has become a serious public health issue due to Fe deficiency. Enhancing Fe content in the edible part of food crops is a major thrust area for scientists worldwide. Recent progress in nutrient transporters has provided an opportunity to resolve Fe deficiency or nutritional problems in plants and humans. Understanding the structure, function, and regulation of Fe transporters is essential to address Fe deficiency in plants and to improve Fe content in staple food crops. In this review, we summarized the role of Fe transporter family members in the uptake, cellular and intercellular movement, and long-distance transport of Fe in plants. We draw insights into the role of vacuolar membrane transporters in the crop for Fe biofortification. We also provide structural and functional insights into cereal crops' vacuolar iron transporters (VITs). This review will help highlight the importance of VITs for improving the Fe biofortification of crops and alleviating Fe deficiency in humans.
Collapse
Affiliation(s)
| | - Stanislaus Antony Ceasar
- Division of Plant Molecular Biology and Biotechnology, Department of Biosciences, Rajagiri College of Social Sciences, Kochi 683104, Kerala, India
| | - Theivanayagam Maharajan
- Division of Plant Molecular Biology and Biotechnology, Department of Biosciences, Rajagiri College of Social Sciences, Kochi 683104, Kerala, India
| |
Collapse
|
18
|
Ren ZW, Kopittke PM, Zhao FJ, Wang P. Nutrient accumulation and transcriptome patterns during grain development in rice. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:909-930. [PMID: 36272142 PMCID: PMC9899419 DOI: 10.1093/jxb/erac426] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 10/21/2022] [Indexed: 06/13/2023]
Abstract
Rice is an important source of calories and mineral nutrients for more than half of the world's population. The accumulation of essential and toxic mineral elements in rice grain affects its nutritional quality and safety. However, the patterns and processes by which different elements progressively accumulate during grain filling remain largely unknown. In the present study, we investigated temporal changes in dry matter, elemental concentrations, and the transcriptome in the grain of field-grown rice. We also investigated the effects of seed setting rate and the position of the grain within the rice panicle on element accumulation. Three different patterns of accumulation were observed: (i) elements including K, Mn, B, and Ca showed an early accumulation pattern; (ii) dry matter and elements including N, P, S, Mg, Cu, Zn, Mo, As, and Cd showed a mid accumulation pattern; and (iii) elements such as Fe showed a gradual increase pattern. These different accumulation patterns can be explained by the differences in the biogeochemical behavior of the various elements in the soil, as well as differences in plant nutrient redistribution, gene expression, and the sink-source relationship. These results improve our knowledge of the dynamics of elemental accumulation in rice grain and are helpful for identification of functional genes mediating the translocation of elements to grain.
Collapse
Affiliation(s)
- Zi-Wen Ren
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
- Centre for Agriculture and Health, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Peter M Kopittke
- The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland, 4072, Australia
| | - Fang-Jie Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | | |
Collapse
|
19
|
Yao Q, Li W, Liu Y, Cheng Y, Xiao X, Long D, Zeng J, Wu D, Sha L, Fan X, Kang H, Zhang H, Zhou Y, Wang Y. FeCl 3 and Fe 2(SO 4) 3 differentially reduce Cd uptake and accumulation in Polish wheat (Triticum polonicum L.) seedlings by exporting Cd from roots and limiting Cd binding in the root cell walls. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120762. [PMID: 36471548 DOI: 10.1016/j.envpol.2022.120762] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/05/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Wheat grown in cadmium (Cd)-contaminated soils easily accumulates more Cd in edible parts than the Chinese safety limit (0.1 mg/kg). FeCl3 and Fe2(SO4)3 have been used to extract Cd from Cd-contaminated soils. Thus, we hypothesized that FeCl3 and Fe2(SO4)3, used as iron (Fe) fertilizers, can reduce Cd uptake and accumulation in wheat. Here, a hydroponic experiment was performed with three FeCl3 and Fe2(SO4)3 concentrations under 80 μM CdCl2 stress on dwarf Polish wheat (Triticum polonicum L., 2n = 4x = 28, AABB) seedlings. Compared with Fe deficiency, FeCl3 and Fe2(SO4)3 additions competitively reduced Cd concentrations. The reductions were not associated with changes in dry weight and root morphological parameters. FeCl3 and Fe2(SO4)3 additions reduced Cd concentrations in the following order from smallest to largest reduction: 25 μM Fe2(SO4)3 < 200 μM FeCl3 < 50 μM FeCl3 < 100 μM Fe2(SO4)3. Investigation of subcellular distributions showed that the four Fe fertilizers differentially reduced Cd binding in the root cell walls and enhanced root sucrose and trehalose. Cd chemical form analysis revealed that Fe fertilizer addition also differentially reduced root FE, FW, and FNaCl. Transcriptomic analysis revealed that addition of FeCl3 and Fe2(SO4)3 differentially up-regulated several genes that hydrolyze cell wall polysaccharides and metal transporter genes for Cd uptake (IRT1 and CAX19) and export (ZIP1, ABCG11, ABCG14, ABCG28, ABCG37, ABCG44, and ABCG48) reducing Cd uptake and accumulation. Our results demonstrated that FeCl3 and Fe2(SO4)3 can reduce Cd accumulation in wheat, and 50 μM FeCl3 is the most effective treatment.
Collapse
Affiliation(s)
- Qin Yao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Weiping Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Ying Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Yiran Cheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Xue Xiao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Dan Long
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Jian Zeng
- College of Resources, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Dandan Wu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Lina Sha
- College of Grassland Science and Technology, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Xing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Houyang Kang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Haiqin Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Yonghong Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Yi Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
| |
Collapse
|
20
|
Kermeur N, Pédrot M, Cabello-Hurtado F. Iron Availability and Homeostasis in Plants: A Review of Responses, Adaptive Mechanisms, and Signaling. Methods Mol Biol 2023; 2642:49-81. [PMID: 36944872 DOI: 10.1007/978-1-0716-3044-0_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Iron is an essential element for all living organisms, playing a major role in plant biochemistry as a redox catalyst based on iron redox properties. Iron is the fourth most abundant element of the Earth's crust, but its uptake by plants is complex because it is often in insoluble forms that are not easily accessible for plants to use. The physical and chemical speciation of iron, as well as rhizosphere activity, are key factors controlling the bioavailability of Fe. Iron can be under reduced (Fe2+) or oxidized (Fe3+) ionic forms, adsorbed onto mineral surfaces, forming complexes with organic molecules, precipitated to form poorly crystalline hydroxides to highly crystalline iron oxides, or included in crystalline Fe-rich mineral phases. Plants must thus adapt to a complex and changing iron environment, and their response is finely regulated by multiple signaling pathways initiated by a diversity of stimulus perceptions. Higher plants possess two separate strategies to uptake iron from rhizosphere soil: the chelation strategy and the reduction strategy in grass and non-grass plants, respectively. Molecular actors involved in iron uptake and mobilization through the plant have been characterized for both strategies. All these processes that contribute to iron homeostasis in plants are highly regulated in response to iron availability by downstream signaling responses, some of which are characteristic signaling signatures of iron dynamics, while others are shared with other environmental stimuli. Recent research has thus revealed key transcription factors, cis-acting elements, post-translational regulators, and other molecular mechanisms controlling these genes or their encoded proteins in response to iron availability. In addition, the most recent research is increasingly highlighting the crosstalk between iron homeostasis and nutrient response regulation. These regulatory processes help to avoid plant iron concentrations building up to potential cell functioning disruptions that could adversely affect plant fitness. Indeed, when iron is in excess in the plant, it can lead to the production and accumulation of dangerous reactive oxygen species and free radicals (H2O2, HO•, O2•-, HO•2) that can cause considerable damages to most cellular components. To cope with iron oxidative stress, plants have developed defense systems involving the complementary action of antioxidant enzymes and molecular antioxidants, safe iron-storage mechanisms, and appropriate morphological adaptations.
Collapse
Affiliation(s)
- Nolenn Kermeur
- University of Rennes, CNRS, Ecobio, UMR 6553, Rennes, France
- University of Rennes, CNRS, Géosciences Rennes, UMR 6118, Rennes, France
| | - Mathieu Pédrot
- University of Rennes, CNRS, Géosciences Rennes, UMR 6118, Rennes, France
| | | |
Collapse
|
21
|
Zhong K, Xie L, Hu S, Shao G, Sheng Z, Jiao G, Wang L, Chen Y, Tang S, Wei X, Zhang P, Hu P. Genome-Wide Association Study of Zinc Toxicity Tolerance within a Rice Core Collection ( Oryza sativa L.). PLANTS (BASEL, SWITZERLAND) 2022; 11:3138. [PMID: 36432867 PMCID: PMC9693275 DOI: 10.3390/plants11223138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Zinc (Zn) is an essential micronutrient for rice, but it is toxic at a high concentration, especially in acid soils. It is yet unknown which genes regulate Zn tolerance in rice. In the present study, a genome-wide association study (GWAS) was performed for Zn tolerance in rice at the seedling stage within a rice core collection, named Ting's core collection, which showed extensive phenotypic variations in Zn toxicity with high-density single-nucleotide polymorphisms (SNPs). A total of 7 and 19 quantitative trait loci (QTL) were detected using root elongation (RE) and relative root elongation (RRE) under high Zn toxicity, respectively. Among them, 24 QTL were novel, and qRRE15 was located in the same region where 3 QTL were reported previously. In addition, qRE4 and qRRE9 were identical. Furthermore, we found eight candidate genes that are involved in abiotic and biotic stress, immunity, cell expansion, and phosphate transport in the loci of qRRE8, qRRE9, and qRRE15. Moreover, four candidate genes, i.e., Os01g0200700, Os06g0621900, Os06g0493600, and Os06g0622700, were verified correlating to Zn tolerance in rice by quantitative real time-PCR (qRT-PCR). Taken together, these results provide significant insight into the genetic basis for Zn toxicity tolerance and tolerant germplasm for developing rice tolerance to Zn toxicity and improving rice production in Zn-contaminated soils.
Collapse
Affiliation(s)
- Kaizhen Zhong
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Lihong Xie
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Shikai Hu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Gaoneng Shao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Zhonghua Sheng
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Guiai Jiao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Ling Wang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Ying Chen
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Shaoqing Tang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Xiangjin Wei
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Peng Zhang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Peisong Hu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| |
Collapse
|
22
|
Wairich A, Ricachenevsky FK, Lee S. A tale of two metals: Biofortification of rice grains with iron and zinc. FRONTIERS IN PLANT SCIENCE 2022; 13:944624. [PMID: 36420033 PMCID: PMC9677123 DOI: 10.3389/fpls.2022.944624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Iron (Fe) and zinc (Zn) are essential micronutrients needed by virtually all living organisms, including plants and humans, for proper growth and development. Due to its capacity to easily exchange electrons, Fe is important for electron transport in mitochondria and chloroplasts. Fe is also necessary for chlorophyll synthesis. Zn is a cofactor for several proteins, including Zn-finger transcription factors and redox metabolism enzymes such as copper/Zn superoxide dismutases. In humans, Fe participates in oxygen transport, electron transport, and cell division whereas Zn is involved in nucleic acid metabolism, apoptosis, immunity, and reproduction. Rice (Oryza sativa L.) is one of the major staple food crops, feeding over half of the world's population. However, Fe and Zn concentrations are low in rice grains, especially in the endosperm, which is consumed as white rice. Populations relying heavily on rice and other cereals are prone to Fe and Zn deficiency. One of the most cost-effective solutions to this problem is biofortification, which increases the nutritional value of crops, mainly in their edible organs, without yield reductions. In recent years, several approaches were applied to enhance the accumulation of Fe and Zn in rice seeds, especially in the endosperm. Here, we summarize these attempts involving transgenics and mutant lines, which resulted in Fe and/or Zn biofortification in rice grains. We review rice plant manipulations using ferritin genes, metal transporters, changes in the nicotianamine/phytosiderophore pathway (including biosynthetic genes and transporters), regulators of Fe deficiency responses, and other mutants/overexpressing lines used in gene characterization that resulted in Fe/Zn concentration changes in seeds. This review also discusses research gaps and proposes possible future directions that could be important to increase the concentration and bioavailability of Fe and Zn in rice seeds without the accumulation of deleterious elements. We also emphasize the need for a better understanding of metal homeostasis in rice, the importance of evaluating yield components of plants containing transgenes/mutations under field conditions, and the potential of identifying genes that can be manipulated by gene editing and other nontransgenic approaches.
Collapse
Affiliation(s)
- Andriele Wairich
- Graduate Program in Molecular and Cellular Biology, Biotechnology Center, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Felipe K. Ricachenevsky
- Graduate Program in Molecular and Cellular Biology, Biotechnology Center, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Department of Botany, Institute of Biosciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Sichul Lee
- Center for Plant Aging Research, Institute for Basic Science (IBS), Daegu, South Korea
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Jeonju, South Korea
| |
Collapse
|
23
|
Zha M, Li X, Li R, Huang J, Fan J, Zhang J, Wang Y, Zhang C. Overexpression of Nicotianamine Synthase ( AtNAS1) Increases Iron Accumulation in the Tuber of Potato. PLANTS (BASEL, SWITZERLAND) 2022; 11:2741. [PMID: 36297765 PMCID: PMC9607507 DOI: 10.3390/plants11202741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/08/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Iron (Fe) deficiency is a global health problem, especially in underdeveloped countries. Biofortification with genetic engineering methods has been used to improve Fe nutrition in a number of crops. Various steps, e.g., uptake, distribution, and storage, involved in Fe homeostasis have been manipulated to increase the Fe concentration in the edible portions of plants. Nicotianamine (NA) is an important metal ion chelator in plants. It promotes the mobility of Fe and decreases cellular Fe toxicity. Increasing the Fe content in crops by promoting NA synthesis could help decrease human diseases associated with Fe deficiency. In the present study, Arabidopsis thaliana nicotianamine synthase 1 (AtNAS1) was overexpressed in potato (Solanum tuberosum, St) under the control of the cauliflower mosaic virus 35S promoter. Transgenic plants had a significantly increased amount of Fe in tubers (52.7 µg/g dry weight, 2.4-fold the amount in wild-type tubers), while no differences in plant phenotype or yield were detected between transgenic and wild-type plants. The expression of genes involved in root mineral uptake and homeostasis, such as StYSL1, StIRT1, StFRO1, and StNAS, was also altered in the roots and leaves of the transgenic plants. Our results demonstrate that the manipulation of Fe chelation is a useful strategy for Fe nutrition improvement, and the increased Fe accumulation in tubers of transgenic potato plants is most likely caused by the increased movement of Fe from the leaf to the tuber.
Collapse
Affiliation(s)
- Manrong Zha
- College of Biology Resources and Environmental Sciences, Jishou University, Jishou 416000, China
- Department of Agronomy, Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
| | - Xin Li
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Rui Li
- Department of Agronomy, Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Jing Huang
- Department of Agronomy, Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
| | - Jinping Fan
- Department of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Jing Zhang
- Department of Plant Biology, Cornell University, New York, NY 14853, USA
| | - Yan Wang
- College of Biology Resources and Environmental Sciences, Jishou University, Jishou 416000, China
- Department of Agronomy, Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
| | - Cankui Zhang
- Department of Agronomy, Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
| |
Collapse
|
24
|
Viana VE, Maltzahn LE, Costa de Oliveira A, Pegoraro C. Genetic Approaches for Iron and Zinc Biofortification and Arsenic Decrease in Oryza sativa L. Grains. Biol Trace Elem Res 2022; 200:4505-4523. [PMID: 34773578 DOI: 10.1007/s12011-021-03018-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 11/04/2021] [Indexed: 12/29/2022]
Abstract
Rice is the staple diet to half of the world's population, being a major source of carbohydrates, vitamins, and some essential elements. However, rice naturally contains low amounts of essential minerals such as iron (Fe) and zinc (Zn), which are drastically decreased after milling. Thus, populations that consume mostly rice may have micronutrient deficiency, which is associated with different diseases. On the other hand, rice irrigated by flooding has a high ability to accumulate arsenic (As) in the grain. Therefore, when rice is grown in areas with contaminated soil or irrigation water, it represents a risk factor for consumers, since As is associated with cancer and other diseases. Different strategies have been used to mitigate micronutrient deficiencies such as Fe and Zn and to prevent As from entering the food chain. Each strategy has its positive and its negative sides. The development of genetically biofortified rice plants with Fe and Zn and with low As accumulation is one of the most promising strategies, since it does not represent an additional cost for farmers, and gives benefits to consumers as well. Considering the importance of genetic improvement (traditional or molecular) to decrease the impact of micronutrient deficiencies such as Fe and Zn and contamination with As, this review aimed to summarize the major efforts, advances, and challenges for genetic biofortification of Fe and Zn and decrease in As content in rice grains.
Collapse
Affiliation(s)
- Vívian Ebeling Viana
- Centro de Genômica E Fitomelhoramento, Departamento de Fitotecnia, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Capão Do Leão, Brazil
| | - Latóia Eduarda Maltzahn
- Centro de Genômica E Fitomelhoramento, Departamento de Fitotecnia, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Capão Do Leão, Brazil
| | - Antonio Costa de Oliveira
- Centro de Genômica E Fitomelhoramento, Departamento de Fitotecnia, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Capão Do Leão, Brazil
| | - Camila Pegoraro
- Centro de Genômica E Fitomelhoramento, Departamento de Fitotecnia, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Capão Do Leão, Brazil.
| |
Collapse
|
25
|
Liang G. Iron uptake, signaling, and sensing in plants. PLANT COMMUNICATIONS 2022; 3:100349. [PMID: 35706354 PMCID: PMC9483112 DOI: 10.1016/j.xplc.2022.100349] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 05/19/2022] [Accepted: 06/09/2022] [Indexed: 05/10/2023]
Abstract
Iron (Fe) is an essential micronutrient that affects the growth and development of plants because it participates as a cofactor in numerous physiological and biochemical reactions. As a transition metal, Fe is redox active. Fe often exists in soil in the form of insoluble ferric hydroxides that are not bioavailable to plants. Plants have developed sophisticated mechanisms to ensure an adequate supply of Fe in a fluctuating environment. Plants can sense Fe status and modulate the transcription of Fe uptake-associated genes, finally controlling Fe uptake from soil to root. There is a critical need to understand the molecular mechanisms by which plants maintain Fe homeostasis in response to Fe fluctuations. This review focuses on recent advances in elucidating the functions of Fe signaling components. Taking Arabidopsis thaliana and Oryza sativa as examples, this review begins by discussing the Fe acquisition systems that control Fe uptake from soil, the major components that regulate Fe uptake systems, and the perception of Fe status. Future explorations of Fe signal transduction will pave the way for understanding the regulatory mechanisms that underlie the maintenance of plant Fe homeostasis.
Collapse
Affiliation(s)
- Gang Liang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Kunming, Yunnan 650223, China.
| |
Collapse
|
26
|
Li C, Li Y, Xu P, Liang G. OsIRO3 negatively regulates Fe homeostasis by repressing the expression of OsIRO2. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:966-978. [PMID: 35689518 DOI: 10.1111/tpj.15864] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/27/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Iron (Fe) is crucial for crop productivity and quality. However, Fe deficiency is prevalent worldwide, particularly in alkaline soil. Plants have evolved sophisticated mechanisms to withstand Fe-deficient conditions. Oryza sativa IRON-RELATED BHLH TRANSCRIPTION FACTOR 3 (OsIRO3/OsbHLH63) has been identified as a negative regulator of Fe deficiency response signaling; however, the underlying mechanism remains unclear. In the present study, we constructed two iro3 mutants, which developed leaves with necrotic lesions under Fe-deficient conditions. Loss-of-function of OsIRO3 caused upregulation of Fe deficiency-associated genes in the root. Fe concentration measurements showed that the iro3 mutants had increased shoot Fe concentration only under Fe-deficient conditions. Further analysis revealed that OsIRO3 directly regulated the expression of IRON-RELATED BHLH TRANSCRIPTION FACTOR 2 (OsIRO2), which encodes a positive regulator of the Fe uptake system. Further investigation demonstrated that OsIRO3 interacted with POSITIVE REGULATOR OF IRON HOMEOSTASIS 1(OsPRI1) and OsPRI2, and. OsIRO3 repressed their transcription activation towards OsIRO2. OsIRO3 contains an EAR motif, which recruits the TOPLESS/TOPLESS-RELATED (OsTPL/OsTPRs) corepressors. Mutation of the EAR motif attenuated the repression ability of OsIRO3. This work sheds light on the molecular mechanism by which OsIRO3 modulates Fe homeostasis in rice.
Collapse
Affiliation(s)
- Chenyang Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, The Xishuangbanna Tropical Botanical Garden, Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
- The College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yang Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, The Xishuangbanna Tropical Botanical Garden, Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
- The College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Peng Xu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, The Xishuangbanna Tropical Botanical Garden, Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
- The College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gang Liang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, The Xishuangbanna Tropical Botanical Garden, Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
- The College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
27
|
Zhang X, Xue C, Wang R, Shen R, Lan P. Physiological and proteomic dissection of the rice roots in response to iron deficiency and excess. J Proteomics 2022; 267:104689. [PMID: 35914714 DOI: 10.1016/j.jprot.2022.104689] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/14/2022] [Accepted: 07/17/2022] [Indexed: 10/16/2022]
Abstract
Iron (Fe) disorder is a pivotal factor that limits rice yields in many parts of the world. Extensive research has been devoted to studying how rice molecularly copes with the stresses of Fe deficiency or excess. However, a comprehensive dissection of the whole Fe-responsive atlas at the protein level is still lacking. Here, different concentrations of Fe (0, 40, 350, and 500 μM) were supplied to rice to demonstrate its response differences to Fe deficiency and excess via physiological and proteomic analysis. Results showed that compared with the normal condition, the seedling growth and contents of Fe and manganese were significantly disturbed under either Fe stress. Proteomic analysis revealed that differentially accumulated proteins under Fe deficiency and Fe excess were commonly enriched in localization, carbon metabolism, biosynthesis of amino acids, and antioxidant system. Notably, proteins with abundance retuned by Fe starvation were individually associated with phenylpropanoid biosynthesis, cysteine and methionine metabolism, while ribosome- and endocytosis-related proteins were specifically enriched in treatment of Fe overdose of 500 μM. Moreover, several novel proteins which may play potential roles in rice Fe homeostasis were predicted. These findings expand the understanding of rice Fe nutrition mechanisms, and provide efficient guidance for genetic breeding work. SIGNIFICANCE: Both iron (Fe) deficiency and excess significantly inhibited the growth of rice seedlings. Fe deficiency and excess disturbed processes of localization and cellular oxidant detoxification, metabolisms of carbohydrates and amino acids in different ways. The Fe-deficiency and Fe-excess-responsive proteins identified by the proteome were somewhat different from the reported transcriptional profiles, providing complementary information to the transcriptomic data.
Collapse
Affiliation(s)
- Xin Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Caiwen Xue
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ruonan Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Renfang Shen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ping Lan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
28
|
Fu D, Li J, Yang X, Li W, Zhou Z, Xiao S, Xue C. Iron redistribution induces oxidative burst and resistance in maize against Curvularia lunata. PLANTA 2022; 256:46. [PMID: 35867182 DOI: 10.1007/s00425-022-03963-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
ΔClnps6 induced iron redistribution in maize B73 leaf cells and resulted in reactive oxygen species (ROS) burst to enhance plant resistance against Curvularia lunata. Iron is an indispensable co-factor of various crucial enzymes that are involved in cellular metabolic processes and energy metabolism in eukaryotes. For this reason, plants and pathogens compete for iron to maintain their iron homeostasis, respectively. In our previous study, ΔClnps6, the extracellular siderophore biosynthesis deletion mutant of Curvularia lunata, was sensitive to exogenous hydrogen peroxide and virulence reduction. However, the mechanism was not studied. Here, we report that maize B73 displayed highly resistance to ΔClnps6. The plants recruited more iron at cell wall appositions (CWAs) to cause ROS bursts. Intracellular iron deficiency induced by iron redistribution originated form up-regulated expression of genes involved in intracellular iron consumption in leaves and absorption in roots. The RNA-sequencing data also showed that the expression of respiratory burst oxidase homologue (ZmRBOH4) and NADP-dependent malic enzyme 4 (ZmNADP-ME4) involved in ROS production was up-regulated in maize B73 after ΔClnps6 infection. Simultaneously, jasmonic acid (JA) biosynthesis genes lipoxygenase (ZmLOX), allene oxide synthase (ZmAOS), GA degradation gene gibberellin 2-beta-dioxygenase (ZmGA2OX6) and ABA degradation genes abscisic acid hydroxylase (ZmABH1, ZmABH2) involved in iron homeostasis were up-regulated expression. Ferritin1 (ZmFER1) positive regulated maize resistance against C. lunata via ROS burst under Fe-limiting conditions. Overall, our results showed that iron played vital roles in activating maize resistance in B73-C. lunata interaction.
Collapse
Affiliation(s)
- Dandan Fu
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Jiayang Li
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Xue Yang
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Wenling Li
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Zengran Zhou
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Shuqin Xiao
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Chunsheng Xue
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China.
| |
Collapse
|
29
|
Zhang Q, Huang D, Xu C, Zhu H, Feng RW, Zhu Q. Fe fortification limits rice Cd accumulation by promoting root cell wall chelation and reducing the mobility of Cd in xylem. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 240:113700. [PMID: 35636238 DOI: 10.1016/j.ecoenv.2022.113700] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/20/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Fe biofortification and Cd mitigation in rice is essential for human health, thus the effects of fertilization with Fe on Cd uptake and distribution in rice need to be comprehensively studied. In this study, we investigated the roles of root iron (Fe)/manganese (Mn) plaques, root cell wall, organic acid, and expressions of Cd-transport related genes in restricting Cd uptake and translocation. The rice plants were exposed to 1 μM CdCl2 with or without the addition of three doses of Fe at 5, 50, and 500 μM EDTA-Na2Fe. The results showed that increasing supply of Fe remarkably reduced Cd accumulation in the shoots, mainly because of inhibited translocation of Cd from roots to shoots. As compared to 5 μM Fe treatment, 500 μM Fe significantly increased the ionic soluble pectin (ISP) content and decreased citric acid (CA) in the roots, thereby providing more Cd-binding sites in the cell wall of roots and reducing the mobility of Cd in xylem. Plant Fe status-mediated CA act as the main chelator for Cd mobilization, rather than through decreasing the pH. However, the plants supplied with low Fe or excess Fe facilitated the uptake of Cd in rice roots, as low Fe up-regulated the expression of Cd-transport related genes and excess Fe enhanced Cd enrichment on the root by iron plaque. Importantly, soil fertilization with Fe strongly reduced Cd accumulation in rice grain. Thus, optimizing the soil environmental Fe could effectively reduce Cd accumulation in the shoots by immobilizing Cd in the roots.
Collapse
Affiliation(s)
- Quan Zhang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - DaoYou Huang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Chao Xu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - HanHua Zhu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Ren-Wei Feng
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - QiHong Zhu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China.
| |
Collapse
|
30
|
Sathee L, Jagadhesan B, Pandesha PH, Barman D, Adavi B S, Nagar S, Krishna GK, Tripathi S, Jha SK, Chinnusamy V. Genome Editing Targets for Improving Nutrient Use Efficiency and Nutrient Stress Adaptation. Front Genet 2022; 13:900897. [PMID: 35774509 PMCID: PMC9237392 DOI: 10.3389/fgene.2022.900897] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/17/2022] [Indexed: 11/22/2022] Open
Abstract
In recent years, the development of RNA-guided genome editing (CRISPR-Cas9 technology) has revolutionized plant genome editing. Under nutrient deficiency conditions, different transcription factors and regulatory gene networks work together to maintain nutrient homeostasis. Improvement in the use efficiency of nitrogen (N), phosphorus (P) and potassium (K) is essential to ensure sustainable yield with enhanced quality and tolerance to stresses. This review outlines potential targets suitable for genome editing for understanding and improving nutrient use (NtUE) efficiency and nutrient stress tolerance. The different genome editing strategies for employing crucial negative and positive regulators are also described. Negative regulators of nutrient signalling are the potential targets for genome editing, that may improve nutrient uptake and stress signalling under resource-poor conditions. The promoter engineering by CRISPR/dead (d) Cas9 (dCas9) cytosine and adenine base editing and prime editing is a successful strategy to generate precise changes. CRISPR/dCas9 system also offers the added advantage of exploiting transcriptional activators/repressors for overexpression of genes of interest in a targeted manner. CRISPR activation (CRISPRa) and CRISPR interference (CRISPRi) are variants of CRISPR in which a dCas9 dependent transcription activation or interference is achieved. dCas9-SunTag system can be employed to engineer targeted gene activation and DNA methylation in plants. The development of nutrient use efficient plants through CRISPR-Cas technology will enhance the pace of genetic improvement for nutrient stress tolerance of crops and improve the sustainability of agriculture.
Collapse
Affiliation(s)
- Lekshmy Sathee
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - B. Jagadhesan
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Pratheek H. Pandesha
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
- Roy and Diana Vagelos Division of Biology and Biomedical Sciences, Washington University in St. Louis, St. Louis, MO, United States
| | - Dipankar Barman
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Sandeep Adavi B
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Shivani Nagar
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - G. K. Krishna
- Department of Plant Physiology, College of Agriculture, KAU, Thrissur, India
| | - Shailesh Tripathi
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Shailendra K. Jha
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Viswanathan Chinnusamy
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| |
Collapse
|
31
|
Kenzhebayeva S, Atabayeva S, Sarsu F, Abekova A, Shoinbekova S, Omirbekova N, Doktyrbay G, Beisenova A, Shavrukov Y. Organ-specific expression of genes involved in iron homeostasis in wheat mutant lines with increased grain iron and zinc content. PeerJ 2022; 10:e13515. [PMID: 35707120 PMCID: PMC9190668 DOI: 10.7717/peerj.13515] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 05/09/2022] [Indexed: 01/17/2023] Open
Abstract
Background Iron deficiency is a well-known nutritional disorder, and the imbalance of trace-elements, specifically iron, is the most common nutrient deficiency of foods across the world, including in Kazakhstan. Wheat has significant nutritional relevance, especially in the provision of iron, however many bread wheat varieties have low iron despite the need for human nourishment. In this study, the expression profiles of wheat homologous genes related to iron homeostasis were investigated. The work resulted in the development of two new M5 mutant lines of spring bread wheat through gamma-irradiation (200 Gy) with higher grain iron and zinc content, lower phytic acid content, and enhanced iron bioavailability compared to the parent variety. Mutant lines were also characterized by higher means of yield associated traits such as grain number per main spike, grain weight per main spike, grain weight per plant, and thousand-grain weight. Methods The homologous genes of bread wheat from several groups were selected for gene expression studies exploring the tight control of iron uptake, translocation rate and accumulation in leaves and roots, and comprised the following: (1) S-adenosylmethionine synthase (SAMS), nicotianamine synthase (NAS1), nicotianamine aminotransferase (NAAT), deoxymugineic acid synthetase (DMAS), involved in the synthesis and release of phytosiderophores; (2) transcription factor basic helix-loop-helix (bHLH); (3) transporters of mugineic acid (TOM), involved in long-distance iron transport; (4) yellow stripe-like (YSlA), and the vacuolar transporter (VIT2), involved in intracellular iron transport and storage; and lastly (5) natural resistance-associated macrophage protein (NRAMP) and ferritin (Fer1A). Results The wheat homologous genes TaSAMS, TaNAS1, and TaDMAS, were significantly up-regulated in the roots of both mutant lines by 2.1-4.7-fold compared to the parent variety. The combined over-expression of TaYSlA and TaVIT2 was also revealed in the roots of mutant lines by 1.3-2.7-fold. In one of the mutant lines, genes encoding intracellular iron transport and storage genes TaNRAMP and TaFer1A-D showed significant up-regulation in roots and leaves (by 1.4- and 3.5-fold, respectively). The highest expression was recorded in the transcription factor TabHLH, which was expressed 13.1- and 30.2-fold in the roots of mutant lines. Our research revealed that genotype-dependent and organ-specific gene expression profiles can provide new insights into iron uptake, translocation rate, storage, and regulation in wheat which aid the prioritization of gene targets for iron biofortification and bioavailability.
Collapse
Affiliation(s)
- Saule Kenzhebayeva
- Department of Biotechnology/Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Saule Atabayeva
- Department of Biotechnology/Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Fatma Sarsu
- Plant Breeding and Genetics Section, General Directorate of Agricultural Research and Policies, Ankara, Turkey
| | - Alfiya Abekova
- Kazakh Research Institute of Agriculture and Plant Growing, Almaty Region, Kazakhstan
| | - Sabina Shoinbekova
- Department of Biotechnology/Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Nargul Omirbekova
- Department of Biotechnology/Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Gulina Doktyrbay
- Department of Biotechnology/Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Aizhan Beisenova
- Department of Molecular Biology, Asfendiyarov Kazakh National Medical University, Almaty, Kazakhstan
| | - Yuri Shavrukov
- College of Science and Engineering (Biological Sciences), Flinders University of South Australia, Adelaide, Australia
| |
Collapse
|
32
|
Xu J, Xu W, Chen X, Zhu H, Fu X, Yu F. Genome-Wide Association Analysis Reveals the Genetic Basis of Iron-Deficiency Stress Tolerance in Maize. FRONTIERS IN PLANT SCIENCE 2022; 13:878809. [PMID: 35720580 PMCID: PMC9202619 DOI: 10.3389/fpls.2022.878809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/11/2022] [Indexed: 06/15/2023]
Abstract
Iron (Fe) is an essential trace element for almost all organisms and is often the major limiting nutrient for normal growth. Fe deficiency is a worldwide agricultural problem, which affects crop productivity and product quality. Understanding the Fe-deficiency response in plants is necessary for improving both plant health and the human diet. In this study, Fe-efficient (Ye478) and Fe-inefficient maize inbred lines (Wu312) were used to identify the genotypic difference in response to low Fe stress during different developmental stages and to further determine the optimal Fe-deficient Fe(II) supply level which leads to the largest phenotypic difference between Ye478 and Wu312. Then, genome-wide association analysis was performed to further identify candidate genes associated with the molecular mechanisms under different Fe nutritional statuses. Three candidate genes involved in Fe homeostasis of strategy II plants (strategy II genes) were identified, including ZmDMAS1, ZmNAAT1, and ZmYSL11. Furthermore, candidate genes ZmNAAT1, ZmDMAS1, and ZmYSL11 were induced in Fe-deficient roots and shoots, and the expression of ZmNAAT1 and ZmDMAS1 responded to Fe deficiency more in shoots than in roots. Beyond that, several genes that may participate in Fe homeostasis of strategy I plants (strategy I genes) were identified, which were either encoding Fe transporters (ZmIRT1 and ZmZIP4), or acting as essential ethylene signal transducers (ZmEBF1). Interestingly, ZmIRT1, ZmZIP4, and ZmEBF1 were significantly upregulated under low Fe stress, suggesting that these genes may be involved in Fe-deficiency tolerance in maize which is considered as strategy II plant. This study demonstrates the use of natural variation in the association population to identify important genes associated with Fe-deficiency tolerance and may further provide insights for understanding the molecular mechanism underlying the tolerance to Fe-deficiency stress in maize.
Collapse
Affiliation(s)
- Jianqin Xu
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Weiya Xu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Xulei Chen
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Huaqing Zhu
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Xiuyi Fu
- Key Laboratory of Maize DNA Fingerprinting and Molecular Breeding, Maize Research Center, Beijing Academy of Agriculture and Forestry Science (BAAFS), Beijing, China
| | - Futong Yu
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| |
Collapse
|
33
|
Kong D, Khan SA, Wu H, Liu Y, Ling HQ. Biofortification of iron and zinc in rice and wheat. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:1157-1167. [PMID: 35396901 DOI: 10.1111/jipb.13262] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Iron and zinc are critical micronutrients for human health. Approximately two billion people suffer from iron and zinc deficiencies worldwide, most of whom rely on rice (Oryza sativa) and wheat (Triticum aestivum) as staple foods. Therefore, biofortifying rice and wheat with iron and zinc is an important and economical approach to ameliorate these nutritional deficiencies. In this review, we provide a brief introduction to iron and zinc uptake, translocation, storage, and signaling pathways in rice and wheat. We then discuss current progress in efforts to biofortify rice and wheat with iron and zinc. Finally, we provide future perspectives for the biofortification of rice and wheat with iron and zinc.
Collapse
Affiliation(s)
- Danyu Kong
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, Jiangxi, China
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
| | - Sabaz Ali Khan
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
- Department of Biotechnology, COMSATS University Islamabad-Abbottabad Campus, University Road, Abbottabad, 22060, Pakistan
| | - Huilan Wu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
| | - Yi Liu
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, Jiangxi, China
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
| | - Hong-Qing Ling
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
34
|
Wang C, Wang X, Li J, Guan J, Tan Z, Zhang Z, Shi G. Genome-Wide Identification and Transcript Analysis Reveal Potential Roles of Oligopeptide Transporter Genes in Iron Deficiency Induced Cadmium Accumulation in Peanut. FRONTIERS IN PLANT SCIENCE 2022; 13:894848. [PMID: 35646039 PMCID: PMC9131082 DOI: 10.3389/fpls.2022.894848] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/05/2022] [Indexed: 05/31/2023]
Abstract
The oligopeptide transporter (OPT) family is a group of proton-coupled symporters that play diverse roles, including metal homeostasis. However, little is known about this family of peanuts. To reveal the potential roles of AhOPT genes in Fe/Cd interactions, peanut AhOPT genes were genome-widely identified, and the relationships between gene expression and Cd accumulation were detected in two contrasting peanut cultivars (Fenghua 1 and Silihong) under Fe-sufficient or Fe-deficient conditions. A total of 40 AhOPT genes were identified in peanuts, which were divided into two subfamilies (PT and YS). Most AhOPT genes underwent gene duplication events predominated by whole-genome duplication. Clustered members generally have similar protein structures. However, gene structural divergences occurred in most of the duplicated genes. Transcription analysis revealed that AhOPT3.2/3.4 and AhYSL3.1/3.2 might be responsible for Fe deficiency tolerance, while AhOPT3.1/3.4, AhOPT7.1/7.2, and AhYSL1.1 be involved in Fe/Cd interactions. These genes might be regulated by transcription factors, including ATHB-12, ATHB-6, DIVARICATA, MYB30, NAC02, DOF3.4, IDD7, and LUX. Reduced expressions of AhYSL3.1/3.2 and higher expressions of AhOPT3.4 might contribute to higher Fe-deficiency tolerance in Silihong. Higher expression of AhOPT7.3 and AhOPT6.1 might be responsible for low Cd accumulation in Fenghua 1. Our results confirmed that AhOPT3/6/7 and AhYSL1/3 might be involved in the transport of Fe and/or Cd in peanuts and provided new clues to understanding potential mechanisms of Fe/Cd interactions.
Collapse
|
35
|
Kumar A, Kaur G, Singh P, Meena V, Sharma S, Tiwari M, Bauer P, Pandey AK. Strategies and Bottlenecks in Hexaploid Wheat to Mobilize Soil Iron to Grains. FRONTIERS IN PLANT SCIENCE 2022; 13:863849. [PMID: 35574143 PMCID: PMC9100831 DOI: 10.3389/fpls.2022.863849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/22/2022] [Indexed: 06/15/2023]
Abstract
Our knowledge of iron (Fe) uptake and mobilization in plants is mainly based on Arabidopsis and rice. Although multiple players of Fe homeostasis have been elucidated, there is a significant gap in our understanding of crop species, such as wheat. It is, therefore, imperative not only to understand the different hurdles for Fe enrichment in tissues but also to address specifically the knowns/unknowns involved in the plausible mechanism of Fe sensing, signaling, transport, and subsequent storage in plants. In the present review, a unique perspective has been described in light of recent knowledge generated in wheat, an economically important crop. The strategies to boost efficient Fe uptake, transcriptional regulation, and long-distance mobilization in grains have been discussed, emphasizing recent biotechnological routes to load Fe in grains. This article also highlights the new elements of physiological and molecular genetics that underpin the mechanistic insight for the identified Fe-related genes and discusses the bottlenecks in unloading the Fe in grains. The information presented here will provide much-needed resources and directions to overcome challenges and design efficient strategies to enhance the Fe density in wheat grains.
Collapse
Affiliation(s)
- Anil Kumar
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India
| | - Gazaldeep Kaur
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India
| | - Palvinder Singh
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India
| | - Varsha Meena
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India
| | - Shivani Sharma
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India
| | - Manish Tiwari
- CSIR-National Botanical Research Institute, Lucknow, India
| | - Petra Bauer
- Institute of Botany, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Cluster of Excellence on Plant Sciences, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Ajay Kumar Pandey
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India
| |
Collapse
|
36
|
Li P, Chen YH, Lu J, Zhang CQ, Liu QQ, Li QF. Genes and Their Molecular Functions Determining Seed Structure, Components, and Quality of Rice. RICE (NEW YORK, N.Y.) 2022; 15:18. [PMID: 35303197 PMCID: PMC8933604 DOI: 10.1186/s12284-022-00562-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 03/01/2022] [Indexed: 05/14/2023]
Abstract
With the improvement of people's living standards and rice trade worldwide, the demand for high-quality rice is increasing. Therefore, breeding high quality rice is critical to meet the market demand. However, progress in improving rice grain quality lags far behind that of rice yield. This might be because of the complexity of rice grain quality research, and the lack of consensus definition and evaluation standards for high quality rice. In general, the main components of rice grain quality are milling quality (MQ), appearance quality (AQ), eating and cooking quality (ECQ), and nutritional quality (NQ). Importantly, all these quality traits are determined directly or indirectly by the structure and composition of the rice seeds. Structurally, rice seeds mainly comprise the spikelet hull, seed coat, aleurone layer, embryo, and endosperm. Among them, the size of spikelet hull is the key determinant of rice grain size, which usually affects rice AQ, MQ, and ECQ. The endosperm, mainly composed of starch and protein, is the major edible part of the rice seed. Therefore, the content, constitution, and physicochemical properties of starch and protein are crucial for multiple rice grain quality traits. Moreover, the other substances, such as lipids, minerals, vitamins, and phytochemicals, included in different parts of the rice seed, also contribute significantly to rice grain quality, especially the NQ. Rice seed growth and development are precisely controlled by many genes; therefore, cloning and dissecting these quality-related genes will enhance our knowledge of rice grain quality and will assist with the breeding of high quality rice. This review focuses on summarizing the recent progress on cloning key genes and their functions in regulating rice seed structure and composition, and their corresponding contributions to rice grain quality. This information will facilitate and advance future high quality rice breeding programs.
Collapse
Affiliation(s)
- Pei Li
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Yu-Hao Chen
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Jun Lu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Chang-Quan Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Qiao-Quan Liu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
| | - Qian-Feng Li
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
| |
Collapse
|
37
|
Wu Q, Liu C, Wang Z, Gao T, Liu Y, Xia Y, Yin R, Qi M. Zinc regulation of iron uptake and translocation in rice (Oryza sativa L.): Implication from stable iron isotopes and transporter genes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 297:118818. [PMID: 35016986 DOI: 10.1016/j.envpol.2022.118818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/07/2021] [Accepted: 01/06/2022] [Indexed: 05/24/2023]
Abstract
Iron (Fe) is an essential nutrient for living organisms and Fe deficiency is a worldwide problem for the health of both rice and humans. Zinc (Zn) contamination in agricultural soils is frequently observed. Here, we studied Fe isotope compositions and transcript levels of Fe transporter genes in rice growing in nutrient solutions having a range of Zn concentrations. Our results show Zn stress reduces Fe uptake by rice and drives its δ56Fe value to that of the nutrient solution. These observations can be explained by the weakened Fe(II) uptake through Strategy I but enhanced Fe(III) uptake through Strategy II due to the competition between Zn and Fe(II) combining with OsIRT1 (Fe(II) transporter) in root, which is supported by the downregulated expression of OsIRT1 and upregulated expression of OsYSL15 (Fe(III) transporter). Using a mass balance box model, we also show excess Zn reduces Fe(II) translocation in phloem and its remobilization from senescent leaf, indicating a competition of binding sites on nicotianamine between Zn and Fe(II). This study provides direct evidence that how Zn regulates Fe uptake and translocation in rice and is of practical significance to design strategies to treat Fe deficiency in rice grown in Zn-contaminated soils.
Collapse
Affiliation(s)
- Qiqi Wu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, PR China
| | - Chengshuai Liu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, PR China; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China
| | - Zhengrong Wang
- Department of Earth and Atmospheric Sciences, The City College of New York, CUNY, New York, 10031, USA
| | - Ting Gao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China.
| | - Yuhui Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yafei Xia
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Runsheng Yin
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China
| | - Meng Qi
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| |
Collapse
|
38
|
Zhong S, Li X, Li F, Liu T, Pan D, Liu Y, Liu C, Chen G, Gao R. Source and Strategy of Iron Uptake by Rice Grown in Flooded and Drained Soils: Insights from Fe Isotope Fractionation and Gene Expression. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:2564-2573. [PMID: 35175773 DOI: 10.1021/acs.jafc.1c08034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Rice can simultaneously absorb Fe2+ via a strategy I-like system and Fe(III)-phytosiderophore via strategy II from soil. Still, it remains unclear which strategy and source of Fe dominate under distinct water conditions. An isotope signature combined with gene expression was employed to evaluate Fe uptake and transport in a soil-rice system under flooded and drained conditions. Rice of flooded treatment revealed a similar δ56Fe value to that of soils (Δ56Ferice-soil = 0.05‰), while that of drained treatment was lighter than that of the soils (Δ56Ferice-soil = -0.41‰). Calculations indicated that 70.4% of Fe in rice was from Fe plaque under flooded conditions, while Fe was predominantly from soil solution under drained conditions. Up-regulated expression of OsNAAT1, OsTOM2, and OsYSL15 was observed in the root of flooded treatment, while higher expression of OsIRT1 was observed in the drained treatment. These isotopic and genetic results suggested that the Fe(III)-DMA uptake from Fe plaque and Fe2+ uptake from soil solution dominated under flooded and drained conditions, respectively.
Collapse
Affiliation(s)
- Songxiong Zhong
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Xiaomin Li
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Fangbai Li
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Tongxu Liu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Dandan Pan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Yuhui Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Chengshuai Liu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Guojun Chen
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Ruichuan Gao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| |
Collapse
|
39
|
Satyavathi CT, Tomar RS, Ambawat S, Kheni J, Padhiyar SM, Desai H, Bhatt SB, Shitap MS, Meena RC, Singhal T, Sankar SM, Singh SP, Khandelwal V. Stage specific comparative transcriptomic analysis to reveal gene networks regulating iron and zinc content in pearl millet [Pennisetum glaucum (L.) R. Br.]. Sci Rep 2022; 12:276. [PMID: 34997160 PMCID: PMC8742121 DOI: 10.1038/s41598-021-04388-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/13/2021] [Indexed: 12/13/2022] Open
Abstract
Pearl millet is an important staple food crop of poor people and excels all other cereals due to its unique features of resilience to adverse climatic conditions. It is rich in micronutrients like iron and zinc and amenable for focused breeding for these micronutrients along with high yield. Hence, this is a key to alleviate malnutrition and ensure nutritional security. This study was conducted to identify and validate candidate genes governing grain iron and zinc content enabling the desired modifications in the genotypes. Transcriptome sequencing using ION S5 Next Generation Sequencer generated 43.5 million sequence reads resulting in 83,721 transcripts with N50 of 597 bp and 84.35% of transcripts matched with the pearl millet genome assembly. The genotypes having high iron and zinc showed differential gene expression during different stages. Of which, 155 were up-regulated and 251 were down-regulated while during flowering stage and milking stage 349 and 378 transcripts were differentially expressed, respectively. Gene annotation and GO term showed the presence of transcripts involved in metabolic activities associated with uptake and transport of iron and zinc. Information generated will help in gaining insights into iron and zinc metabolism and develop genotypes with high yield, grain iron and zinc content.
Collapse
Affiliation(s)
- C Tara Satyavathi
- ICAR-AICRP on Pearl Millet, Agriculture University, Jodhpur, Rajasthan, 342 304, India.
| | - Rukam S Tomar
- Department of Biotechnology, Junagadh Agricultural University, Junagadh, Gujarat, India
| | - Supriya Ambawat
- ICAR-AICRP on Pearl Millet, Agriculture University, Jodhpur, Rajasthan, 342 304, India
| | - Jasminkumar Kheni
- Department of Biotechnology, Junagadh Agricultural University, Junagadh, Gujarat, India
| | - Shital M Padhiyar
- Department of Biotechnology, Junagadh Agricultural University, Junagadh, Gujarat, India
| | - Hiralben Desai
- Department of Biotechnology, Junagadh Agricultural University, Junagadh, Gujarat, India
| | - S B Bhatt
- Department of Biotechnology, Junagadh Agricultural University, Junagadh, Gujarat, India
| | - M S Shitap
- Department of Agricultural Statistics, Junagadh Agricultural University, Junagadh, Gujarat, India
| | - Ramesh Chand Meena
- ICAR-AICRP on Pearl Millet, Agriculture University, Jodhpur, Rajasthan, 342 304, India
| | - Tripti Singhal
- Division of Genetics, Indian Agricultural Research Institute, ICAR, New Delhi, India
| | - S Mukesh Sankar
- Division of Genetics, Indian Agricultural Research Institute, ICAR, New Delhi, India
| | - S P Singh
- Division of Genetics, Indian Agricultural Research Institute, ICAR, New Delhi, India
| | - Vikas Khandelwal
- ICAR-AICRP on Pearl Millet, Agriculture University, Jodhpur, Rajasthan, 342 304, India
| |
Collapse
|
40
|
McInturf SA, Khan MA, Gokul A, Castro-Guerrero NA, Höhner R, Li J, Marjault HB, Fichman Y, Kunz HH, Goggin FL, Keyster M, Nechushtai R, Mittler R, Mendoza-Cózatl DG. Cadmium interference with iron sensing reveals transcriptional programs sensitive and insensitive to reactive oxygen species. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:324-338. [PMID: 34499172 DOI: 10.1093/jxb/erab393] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
Iron (Fe) is an essential micronutrient whose uptake is tightly regulated to prevent either deficiency or toxicity. Cadmium (Cd) is a non-essential element that induces both Fe deficiency and toxicity; however, the mechanisms behind these Fe/Cd-induced responses are still elusive. Here we explored Cd- and Fe-associated responses in wild-type Arabidopsis and in a mutant that overaccumulates Fe (opt3-2). Gene expression profiling revealed a large overlap between transcripts induced by Fe deficiency and Cd exposure. Interestingly, the use of opt3-2 allowed us to identify additional gene clusters originally induced by Cd in the wild type but repressed in the opt3-2 background. Based on the high levels of H2O2 found in opt3-2, we propose a model where reactive oxygen species prevent the induction of genes that are induced in the wild type by either Fe deficiency or Cd. Interestingly, a defined cluster of Fe-responsive genes was found to be insensitive to this negative feedback, suggesting that their induction by Cd is more likely to be the result of an impaired Fe sensing. Overall, our data suggest that Fe deficiency responses are governed by multiple inputs and that a hierarchical regulation of Fe homeostasis prevents the induction of specific networks when Fe and H2O2 levels are elevated.
Collapse
Affiliation(s)
- Samuel A McInturf
- Division of Plant Sciences, C.S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Mather A Khan
- Division of Plant Sciences, C.S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Arun Gokul
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville, Cape Town, 7535, South Africa
| | - Norma A Castro-Guerrero
- Division of Plant Sciences, C.S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Ricarda Höhner
- School of Biological Sciences, Washington State University, PO Box 644236, Pullman, WA 99164-4236, USA
| | - Jiamei Li
- Department of Entomology and Plant Pathology, 217 Plant Sciences Building, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA
| | | | - Yosef Fichman
- Division of Plant Sciences, C.S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Hans-Henning Kunz
- School of Biological Sciences, Washington State University, PO Box 644236, Pullman, WA 99164-4236, USA
- Biozentrum der LMU München, Germany
| | - Fiona L Goggin
- Department of Entomology and Plant Pathology, 217 Plant Sciences Building, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA
| | - Marshall Keyster
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville, Cape Town, 7535, South Africa
| | - Rachel Nechushtai
- Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, 91904Israel
| | - Ron Mittler
- Division of Plant Sciences, C.S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - David G Mendoza-Cózatl
- Division of Plant Sciences, C.S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville, Cape Town, 7535, South Africa
| |
Collapse
|
41
|
Xu J, Qin X, Zhu H, Chen F, Fu X, Yu F. Mapping of the Quantitative Trait Loci and Candidate Genes Associated With Iron Efficiency in Maize. FRONTIERS IN PLANT SCIENCE 2022; 13:855572. [PMID: 35528939 PMCID: PMC9072831 DOI: 10.3389/fpls.2022.855572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 03/07/2022] [Indexed: 05/13/2023]
Abstract
Iron (Fe) is a mineral micronutrient for plants, and Fe deficiency is a major abiotic stress in crop production because of its low solubility under aerobic and alkaline conditions. In this study, 18 maize inbred lines were used to preliminarily illustrate the physiological mechanism underlying Fe deficiency tolerance. Then biparental linkage analysis was performed to identify the quantitative trait loci (QTLs) and candidate genes associated with Fe deficiency tolerance using the recombinant inbred line (RIL) population derived from the most Fe-efficient (Ye478) and Fe-inefficient (Wu312) inbred lines. A total of 24 QTLs was identified under different Fe nutritional status in the Ye478 × Wu312 RIL population, explaining 6.1-26.6% of phenotypic variation, and ten candidate genes were identified. Plants have evolved two distinct mechanisms to solubilize and transport Fe to acclimate to Fe deficiency, including reduction-based strategy (strategy I) and chelation-based strategy (strategy II), and maize uses strategy II. However, not only genes involved in Fe homeostasis verified in strategy II plants (strategy II genes), which included ZmYS1, ZmYS3, and ZmTOM2, but also several genes associated with Fe homeostasis in strategy I plants (strategy I genes) were identified, including ZmFIT, ZmPYE, ZmILR3, ZmBTS, and ZmEIN2. Furthermore, strategy II gene ZmYS1 and strategy I gene ZmBTS were significantly upregulated in the Fe-deficient roots and shoots of maize inbred lines, and responded to Fe deficiency more in shoots than in roots. Under Fe deficiency, greater upregulations of ZmYS1 and ZmBTS were observed in Fe-efficient parent Ye478, not in Fe-inefficient parent Wu312. Beyond that, ZmEIN2 and ZmILR3, were found to be Fe deficiency-inducible in the shoots. These findings indicate that these candidate genes may be associated with Fe deficiency tolerance in maize. This study demonstrates the use of natural variation to identify important Fe deficiency-regulated genes and provides further insights for understanding the response to Fe deficiency stress in maize.
Collapse
Affiliation(s)
- Jianqin Xu
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Xiaoxin Qin
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Huaqing Zhu
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Fanjun Chen
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Xiuyi Fu
- Key Laboratory of Maize DNA Fingerprinting and Molecular Breeding, Maize Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing, China
| | - Futong Yu
- Key Laboratory of Plant-Soil Interaction (MOE), Centre for Resources, Environment and Food Security, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
- *Correspondence: Futong Yu,
| |
Collapse
|
42
|
Koç E, Karayiğit B. Assessment of Biofortification Approaches Used to Improve Micronutrient-Dense Plants That Are a Sustainable Solution to Combat Hidden Hunger. JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 2022; 22:475-500. [PMID: 34754134 PMCID: PMC8567986 DOI: 10.1007/s42729-021-00663-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/18/2021] [Indexed: 05/05/2023]
Abstract
Malnutrition causes diseases, immune system disorders, deterioration in physical growth, mental development, and learning capacity worldwide. Micronutrient deficiency, known as hidden hunger, is a serious global problem. Biofortification is a cost-effective and sustainable agricultural strategy for increasing the concentrations or bioavailability of essential elements in the edible parts of plants, minimizing the risks of toxic metals, and thus reducing malnutrition. It has the advantage of delivering micronutrient-dense food crops to a large part of the global population, especially poor populations. Agronomic biofortification and biofertilization, traditional plant breeding, and optimized fertilizer applications are more globally accepted methods today; however, genetic biofortification based on genetic engineering such as increasing or manipulating (such as CRISPR-Cas9) the expression of genes that affect the regulation of metal homeostasis and carrier proteins that serve to increase the micronutrient content for higher nutrient concentration and greater productivity or that affect bioavailability is also seen as a promising high-potential strategy in solving this micronutrient deficiency problem. Data that micronutrients can help strengthen the immune system against the COVID-19 pandemic and other diseases has highlighted the importance of tackling micronutrient deficiencies. In this study, biofortification approaches such as plant breeding, agronomic techniques, microbial fertilization, and some genetic and nanotechnological methods used in the fight against micronutrient deficiency worldwide were compiled.
Collapse
Affiliation(s)
- Esra Koç
- Department of Biology, Faculty of Science, Ankara University, Ankara, Turkey
| | - Belgizar Karayiğit
- Department of Biology, Faculty of Science, Ankara University, Ankara, Turkey
| |
Collapse
|
43
|
Meena V, Sharma S, Kaur G, Singh B, Pandey AK. Diverse Functions of Plant Zinc-Induced Facilitator-like Transporter for Their Emerging Roles in Crop Trait Enhancement. PLANTS 2021; 11:plants11010102. [PMID: 35009105 PMCID: PMC8747725 DOI: 10.3390/plants11010102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/03/2021] [Accepted: 12/09/2021] [Indexed: 11/16/2022]
Abstract
The major facilitator superfamily (MFS) is a large and diverse group of secondary transporters found across all kingdoms of life. Zinc-induced facilitator-like (ZIFL) transporters are the MFS family members that function as exporters driven by the antiporter-dependent processes. The presence of multiple ZIFL transporters was shown in various plant species, as well as in bryophytes. However, only a few ZIFLs have been functionally characterized in plants, and their localization has been suggested to be either on tonoplast or at the plasma membrane. A subset of the plant ZIFLs were eventually characterized as transporters due to their specialized role in phytosiderophores efflux and auxin homeostasis, and they were also proven to impart tolerance to micronutrient deficiency. The emerging functions of ZIFL proteins highlight their role in addressing important traits in crop species. This review aims to provide insight into and discuss the importance of plant ZIFL in various tissue-specific functions. Furthermore, a spotlight is placed on their role in mobilizing essential micronutrients, including iron and zinc, from the rhizosphere to support plant survival. In conclusion, in this paper, we discuss the functional redundancy of ZIFL transporters to understand their roles in developing specific traits in crop.
Collapse
Affiliation(s)
- Varsha Meena
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Sector 81, Sahibzada Ajit Singh Nagar 140306, India; (V.M.); (S.S.); (G.K.)
- Regional Centre for Biotechnology, Faridabad 121001, India
| | - Shivani Sharma
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Sector 81, Sahibzada Ajit Singh Nagar 140306, India; (V.M.); (S.S.); (G.K.)
| | - Gazaldeep Kaur
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Sector 81, Sahibzada Ajit Singh Nagar 140306, India; (V.M.); (S.S.); (G.K.)
| | - Bhupinder Singh
- Centre for Environment Science and Climate Resilient Agriculture, ICAR-IARI, New Delhi 110002, India;
| | - Ajay Kumar Pandey
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Sector 81, Sahibzada Ajit Singh Nagar 140306, India; (V.M.); (S.S.); (G.K.)
- Correspondence: or ; Tel.: +91-1724990124
| |
Collapse
|
44
|
Bashir K, Ishimaru Y. Challenges and opportunities to regulate mineral transport in rice. Biosci Biotechnol Biochem 2021; 86:12-22. [PMID: 34661659 DOI: 10.1093/bbb/zbab180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/06/2021] [Indexed: 11/13/2022]
Abstract
Iron (Fe) is an essential mineral for plants, and its deficiency as well as toxicity severely affects plant growth and development. Although Fe is ubiquitous in mineral soils, its acquisition by plants is difficult to regulate particularly in acidic and alkaline soils. Under alkaline conditions, where lime is abundant, Fe and other mineral elements are sparingly soluble. In contrast, under low pH conditions, especially in paddy fields, Fe toxicity could occur. Fe uptake is complicated and could be integrated with copper (Cu), manganese (Mn), zinc (Zn), and cadmium (Cd) uptake. Plants have developed sophisticated mechanisms to regulate the Fe uptake from soil and its transport to root and above-ground parts. Here, we review recent developments in understanding metal transport and discuss strategies to effectively regulate metal transport in plants with a particular focus on rice.
Collapse
Affiliation(s)
- Khurram Bashir
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore, Pakistan
| | - Yasuhiro Ishimaru
- Department of Biomolecular Engineering, Tohoku University, Aoba-ku, Sendai, Japan
| |
Collapse
|
45
|
Research and Progress on the Mechanism of Iron Transfer and Accumulation in Rice Grains. PLANTS 2021; 10:plants10122610. [PMID: 34961081 PMCID: PMC8708893 DOI: 10.3390/plants10122610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022]
Abstract
Iron (Fe) is one of the most important micronutrients for organisms. Currently, Fe deficiency is a growing nutritional problem and is becoming a serious threat to human health worldwide. A method that could help alleviate this “hidden hunger” is increasing the bioavailable Fe concentrations in edible tissues of major food crops. Therefore, understanding the molecular mechanisms of Fe accumulation in different crop tissues will help to develop crops with higher Fe nutritional values. Biofortification significantly increases the concentration of Fe in crops. This paper considers the important food crop of rice (Oryza sativa L.) as an example and highlights recent research advances on the molecular mechanisms of Fe uptake and allogeneic uptake in different tissues of rice. In addition, different approaches to the biofortification of Fe nutrition in rice and their outcomes are described and discussed. To address the problems that occur during the development and application of improving nutritional Fe in rice, technical strategies and long-term solutions are also proposed as a reference for the future improvement of staple food nutrition with micronutrients.
Collapse
|
46
|
Martín-Barranco A, Thomine S, Vert G, Zelazny E. A quick journey into the diversity of iron uptake strategies in photosynthetic organisms. PLANT SIGNALING & BEHAVIOR 2021; 16:1975088. [PMID: 34514930 PMCID: PMC8525953 DOI: 10.1080/15592324.2021.1975088] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 06/02/2023]
Abstract
Iron (Fe) is involved in multiple processes that contribute to the maintenance of the cellular homeostasis of all living beings. In photosynthetic organisms, Fe is notably required for photosynthesis. Although iron is generally abundant in the environment, it is frequently poorly bioavailable. This review focuses on the molecular strategies that photosynthetic organisms have evolved to optimize iron acquisition, using Arabidopsis thaliana, rice (Oryza sativa), and some unicellular algae as models. Non-graminaceous plants, including Arabidopsis, take up iron from the soil by an acidification-reduction-transport process (strategy I) requiring specific proteins that were recently shown to associate in a dedicated complex. On the other hand, graminaceous plants, such as rice, use the so-called strategy II to acquire iron, which relies on the uptake of Fe3+ chelated by phytosiderophores that are secreted by the plant into the rhizosphere. However, apart these main strategies, accessory mechanisms contribute to robust iron uptake in both Arabidopsis and rice. Unicellular algae combine reductive and non-reductive mechanisms for iron uptake and present important specificities compared to land plants. Since the majority of the molecular actors required for iron acquisition in algae are not conserved in land plants, questions arise about the evolution of the Fe uptake processes upon land colonization.
Collapse
Affiliation(s)
- Amanda Martín-Barranco
- Institute for Integrative Biology of the Cell (I2BC), UMR9198 CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Sébastien Thomine
- Institute for Integrative Biology of the Cell (I2BC), UMR9198 CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Grégory Vert
- Plant Science Research Laboratory (LRSV), UMR5546 CNRS/University of Toulouse 3, Auzeville Tolosane, France
| | - Enric Zelazny
- Biochemistry and Plant Molecular Physiology (BPMP), CNRS, INRAE, Montpellier SupAgro, Université Montpellier, Montpellier, France
| |
Collapse
|
47
|
Jiang Y, Chen X, Chai S, Sheng H, Sha L, Fan X, Zeng J, Kang H, Zhang H, Xiao X, Zhou Y, Vatamaniuk OK, Wang Y. TpIRT1 from Polish wheat (Triticum polonicum L.) enhances the accumulation of Fe, Mn, Co, and Cd in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 312:111058. [PMID: 34620452 DOI: 10.1016/j.plantsci.2021.111058] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Uptake and internal transport of micronutrients are essential for plant growth, development, and yield. In this regard, Iron Regulated Transporters (IRTs) from the Zinc Regulated Transporter (ZRT)/IRT-related protein (ZIP) family play an important role in transition metal uptake. Most studies have been focused on IRT1-like proteins in diploid species. Information on IRT1-like proteins in polyploids is limited. Here, we studied the function of TpIRT1A and TpIRT1B homoeologs in a tetraploid crop, Polish wheat (Triticum polonicum L.). Our results highlighted the importance of TpIRT1 in mediating the uptake and translocation of Fe, Mn, Co, and Cd with direct implications for wheat yield potential. Both TpIRT1A and TpIRT1B were located at the plasma membrane and internal vesicle-like organelle in protoplasts of Arabidopsis thaliana L. and increased Cd and Co sensitivity in yeast. The over-expression of TpIRT1B in A. thaliana increased Fe, Mn, Co, and Cd concentration in its tissues and improved plant growth under Fe, Mn, and Co deficiencies, while increased the sensitivity to Cd compared to wild type. Functional analysis of IRT1 homoeologs from tetraploid and diploid ancestral wheat species in yeast disclosed four distinct amino acid residues in TdiIRT1B (T. dicoccum L. (Schrank)) and TtuIRT1B (T. turgidum L.). Together, our results increase the knowledge of IRT1 function in a globally important crop, wheat.
Collapse
Affiliation(s)
- Yulin Jiang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China; Soil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca, 14853, NY, USA
| | - Xing Chen
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Songyue Chai
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Huajin Sheng
- Soil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca, 14853, NY, USA; Global Institute for Food Security, University of Saskatchewan, Saskatoon, S7N0W9, SK, Canada
| | - Lina Sha
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Xing Fan
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Jian Zeng
- College of Resources, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Houyang Kang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Haiqin Zhang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Xue Xiao
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Yonghong Zhou
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Olena K Vatamaniuk
- Soil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca, 14853, NY, USA.
| | - Yi Wang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
| |
Collapse
|
48
|
Kaur G, Shukla V, Meena V, Kumar A, Tyagi D, Singh J, Kandoth PK, Mantri S, Rouached H, Pandey AK. Physiological and molecular responses to combinatorial iron and phosphate deficiencies in hexaploid wheat seedlings. Genomics 2021; 113:3935-3950. [PMID: 34606916 DOI: 10.1016/j.ygeno.2021.09.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 09/23/2021] [Accepted: 09/25/2021] [Indexed: 01/16/2023]
Abstract
Iron (Fe) and phosphorus (P) are the essential mineral nutrients for plant growth and development. However, the molecular interaction of the Fe and P pathways in crops remained largely obscure. In this study, we provide a comprehensive physiological and molecular analysis of hexaploid wheat response to single (Fe, P) and its combinatorial deficiencies. Our data showed that inhibition of the primary root growth occurs in response to Fe deficiency; however, growth was rescued when combinatorial deficiencies occurred. Analysis of RNAseq revealed that distinct molecular rearrangements during combined deficiencies with predominance for genes related to metabolic pathways and secondary metabolite biosynthesis primarily include genes for UDP-glycosyltransferase, cytochrome-P450s, and glutathione metabolism. Interestingly, the Fe-responsive cis-regulatory elements in the roots in Fe stress conditions were enriched compared to the combined stress. Our metabolome data also revealed the accumulation of distinct metabolites such as amino-isobutyric acid, arabinonic acid, and aconitic acid in the combined stress environment. Overall, these results are essential in developing new strategies to improve the resilience of crops in limited nutrients.
Collapse
Affiliation(s)
- Gazaldeep Kaur
- National Agri-Food Biotechnology Institute, Department of Biotechnology, Sector 81, Knowledge City, Mohali 140306, Punjab, India; Department of Biotechnology, Panjab University, Punjab, India
| | - Vishnu Shukla
- National Agri-Food Biotechnology Institute, Department of Biotechnology, Sector 81, Knowledge City, Mohali 140306, Punjab, India
| | - Varsha Meena
- National Agri-Food Biotechnology Institute, Department of Biotechnology, Sector 81, Knowledge City, Mohali 140306, Punjab, India
| | - Anil Kumar
- National Agri-Food Biotechnology Institute, Department of Biotechnology, Sector 81, Knowledge City, Mohali 140306, Punjab, India; Department of Biotechnology, Panjab University, Punjab, India
| | - Deepshikha Tyagi
- National Agri-Food Biotechnology Institute, Department of Biotechnology, Sector 81, Knowledge City, Mohali 140306, Punjab, India
| | - Jagtar Singh
- Department of Biotechnology, Panjab University, Punjab, India
| | - Pramod Kaitheri Kandoth
- National Agri-Food Biotechnology Institute, Department of Biotechnology, Sector 81, Knowledge City, Mohali 140306, Punjab, India
| | - Shrikant Mantri
- National Agri-Food Biotechnology Institute, Department of Biotechnology, Sector 81, Knowledge City, Mohali 140306, Punjab, India
| | - Hatem Rouached
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI 48824, United States of America; Plant Resilience Institute, Michigan State University, East Lansing, MI 48824, United States of America
| | - Ajay Kumar Pandey
- National Agri-Food Biotechnology Institute, Department of Biotechnology, Sector 81, Knowledge City, Mohali 140306, Punjab, India.
| |
Collapse
|
49
|
Kailasam S, Peiter E. A path toward concurrent biofortification and cadmium mitigation in plant-based foods. THE NEW PHYTOLOGIST 2021; 232:17-24. [PMID: 34143526 DOI: 10.1111/nph.17566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 06/15/2021] [Indexed: 06/12/2023]
Abstract
Millions of people are anemic due to inadequate consumption of foods rich in iron and zinc. Plant-based foods provide most of our dietary nutrients but may also contain the toxic heavy metal cadmium (Cd). A low level of Cd silently enters the body through the diet. Once ingested, Cd may remain for decades. Hence, prolonged intake of Cd-containing foods endangers human health. Research that leads towards micronutrient enrichment and mitigation of Cd in foods has therefore dual significance for human health. The breeding of Cd-tolerant cultivars may enable them to grow on Cd-polluted soils; however, they may not yield Cd-free foods. Conversely, sequestration of Cd in roots can prevent its accumulation in grains, but this mechanism also retains nutrients, hence counteracting biofortification efforts. A specific restriction of the Cd absorption capacity of crops would prevent Cd entry into the plant system while maintaining micronutrient accumulation and may thus be a solution to the dilemma. After recapitulating existing strategies employed for the development of Cd-tolerant and biofortified cultivars, this Viewpoint elaborates alternative approaches based on directed evolution and genome editing strategies for excluding Cd while enriching micronutrients in plant foods, which will concurrently help to eradicate malnutrition and prevent Cd intoxication.
Collapse
Affiliation(s)
- Sakthivel Kailasam
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Edgar Peiter
- Plant Nutrition Laboratory, Faculty of Natural Sciences III, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), D-06099, Germany
| |
Collapse
|
50
|
Kaur R, Das S, Bansal S, Singh G, Sardar S, Dhar H, Ram H. Heavy metal stress in rice: Uptake, transport, signaling, and tolerance mechanisms. PHYSIOLOGIA PLANTARUM 2021; 173:430-448. [PMID: 34227684 DOI: 10.1111/ppl.13491] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/06/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Heavy metal contamination of agricultural fields has become a global concern as it causes a direct impact on human health. Rice is the major food crop for almost half of the world population and is grown under diverse environmental conditions, including heavy metal-contaminated soil. In recent years, the impact of heavy metal contamination on rice yield and grain quality has been shown through multiple approaches. In this review article, different aspects of heavy metal stress, that is uptake, transport, signaling and tolerance mechanisms, are comprehensively discussed with special emphasis on rice. For uptake, some of the transporters have specificity to one or two metal ions, whereas many other transporters are able to transport many different ions. After uptake, the intercellular signaling is mediated through different signaling pathways involving the regulation of various hormones, alteration of calcium levels, and the activation of mitogen-activated protein kinases. Heavy metal stress signals from various intermediate molecules activate various transcription factors, which triggers the expression of various antioxidant enzymes. Activated antioxidant enzymes then scavenge various reactive oxygen species, which eventually leads to stress tolerance in plants. Non-enzymatic antioxidants, such as ascorbate, metalloids, and even metal-binding peptides (metallothionein and phytochelatin) can also help to reduce metal toxicity in plants. Genetic engineering has been successfully used in rice and many other crops to increase metal tolerance and reduce heavy metals accumulation. A comprehensive understanding of uptake, transport, signaling, and tolerance mechanisms will help to grow rice plants in agricultural fields with less heavy metal accumulation in grains.
Collapse
Affiliation(s)
- Ravneet Kaur
- Agricultural Biotechnology division, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Susmita Das
- Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Calcutta, Kolkata, India
| | - Sakshi Bansal
- Agricultural Biotechnology division, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Gurbir Singh
- Agricultural Biotechnology division, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Shaswati Sardar
- Lab 202, National Institute of Plant Genome Research (NIPGR), New Delhi, India
| | - Hena Dhar
- Agricultural Biotechnology division, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Hasthi Ram
- Lab 202, National Institute of Plant Genome Research (NIPGR), New Delhi, India
| |
Collapse
|