1
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Li Q, Zhang X, Zhao P, Chen Y, Ni D, Wang M. Metal tolerance protein CsMTP4 has dual functions in maintaining zinc homeostasis in tea plant. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134308. [PMID: 38631255 DOI: 10.1016/j.jhazmat.2024.134308] [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: 01/22/2024] [Revised: 04/05/2024] [Accepted: 04/13/2024] [Indexed: 04/19/2024]
Abstract
Plants have evolved a series of zinc (Zn) homeostasis mechanisms to cope with the fluctuating Zn in the environment. How Zn is taken up, translocated and tolerate by tea plant remains unknown. In this study, on the basis of RNA-Sequencing, we isolated a plasma membrane-localized Metal Tolerance Protein (MTP) family member CsMTP4 from Zn-deficient tea plant roots and investigated its role in regulation of Zn homeostasis in tea plant. Heterologous expression of CsMTP4 specifically enhanced the tolerance of transgenic yeast to Zn excess. Moreover, overexpression of CsMTP4 in tea plant hairy roots stimulated Zn uptake under Zn deficiency. In addition, CsMTP4 promoted the growth of transgenic Arabidopsis plants by translocating Zn from roots to shoots under Zn deficiency and conferred the tolerance to Zn excess by enhancing the efflux of Zn from root cells. Transcriptome analysis of the CsMTP4 transgenic Arabidopsis found that the expression of Zn metabolism-related genes were differentially regulated compared with wild-type plants when exposed to Zn deficiency and excess conditions. This study provides a mechanistic understanding of Zn uptake and translocation in plants and a new strategy to improve phytoremediation efficiency.
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Affiliation(s)
- Qinghui Li
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, PR China; Joint International Research Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Xuyang Zhang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, PR China; Joint International Research Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Peiling Zhao
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, PR China; Joint International Research Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yuqiong Chen
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, PR China; Joint International Research Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Dejiang Ni
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, PR China; Joint International Research Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Mingle Wang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, PR China; Joint International Research Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China.
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2
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Wu X, Jia Y, Ma Q, Wang T, Xu J, Chen H, Wang M, Song H, Cao S. The transcription factor bZIP44 cooperates with MYB10 and MYB72 to regulate the response of Arabidopsis thaliana to iron deficiency stress. THE NEW PHYTOLOGIST 2024; 242:2586-2603. [PMID: 38523234 DOI: 10.1111/nph.19706] [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: 08/28/2023] [Accepted: 03/09/2024] [Indexed: 03/26/2024]
Abstract
Nicotianamine (NA) plays a crucial role in transporting metal ions, including iron (Fe), in plants; therefore, NICOTIANAMINE SYNTHASE (NAS) genes, which control NA synthesis, are tightly regulated at the transcriptional level. However, the transcriptional regulatory mechanisms of NAS genes require further investigations. In this study, we determined the role of bZIP44 in mediating plant response to Fe deficiency stress by conducting transformation experiments and assays. bZIP44 positively regulated the response of Arabidopsis to Fe deficiency stress by interacting with MYB10 and MYB72 to enhance their abilities to bind at NAS2 and NAS4 promoters, thereby increasing NAS2 and NAS4 transcriptional levels and promote NA synthesis. In summary, the transcription activities of bZIP44, MYB10, and MYB72 were induced in response to Fe deficiency stress, which enhanced the interaction between bZIP44 and MYB10 or MYB72 proteins, synergistically activated the transcriptional activity of NAS2 and NAS4, promoted NA synthesis, and improved Fe transport, thereby enhancing plant tolerance to Fe deficiency stress.
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Affiliation(s)
- Xi Wu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yafeng Jia
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Qian Ma
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Tingting Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jiena Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Hongli Chen
- Anhui Society for Horticultural Science, Anhui Academy of Agricultural Sciences, Hefei, 230031, China
| | - Mingxia Wang
- Institute of Horticulture, Anhui Academy of Agricultural Sciences, Hefei, 230031, China
| | - Hui Song
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Shuqing Cao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
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3
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Spielmann J, Schloesser M, Hanikenne M. Reduced expression of bZIP19 and bZIP23 increases zinc and cadmium accumulation in Arabidopsis halleri. PLANT, CELL & ENVIRONMENT 2024; 47:2093-2108. [PMID: 38404193 DOI: 10.1111/pce.14862] [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: 08/10/2023] [Revised: 02/03/2024] [Accepted: 02/11/2024] [Indexed: 02/27/2024]
Abstract
Zinc is an essential micronutrient for all living organisms. When challenged by zinc-limiting conditions, Arabidopsis thaliana plants use a strategy centered on two transcription factors, bZIP19 and bZIP23, to enhance the expression of several zinc transporters to improve their zinc uptake capacity. In the zinc and cadmium hyperaccumulator plant Arabidopsis halleri, highly efficient root-to-shoot zinc translocation results in constitutive local zinc deficiency in roots and in constitutive high expression of zinc deficiency-responsive ZIP genes, supposedly boosting zinc uptake and accumulation. Here, to disrupt this process and to analyze the functions of AhbZIP19, AhbZIP23 and their target genes in hyperaccumulation, the genes encoding both transcriptional factors were knocked down using artificial microRNAs (amiRNA). Although AhbZIP19, AhbZIP23, and their ZIP target genes were downregulated, amiRNA lines surprisingly accumulated more zinc and cadmium compared to control lines in both roots and shoot driving to shoot toxicity symptoms. These observations suggested the existence of a substitute metal uptake machinery in A. halleri to maintain hyperaccumulation. We propose that the iron uptake transporter AhIRT1 participates in this alternative pathway in A. halleri.
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Affiliation(s)
- Julien Spielmann
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, Liège, Belgium
| | - Marie Schloesser
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, Liège, Belgium
| | - Marc Hanikenne
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, Liège, Belgium
- InBioS-PhytoSystems, Translational Plant Biology, University of Liège, Liège, Belgium
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Zhang C, Fang H, Wang J, Tao H, Wang D, Qin M, He F, Wang R, Wang GL, Ning Y. The rice E3 ubiquitin ligase-transcription factor module targets two trypsin inhibitors to enhance broad-spectrum disease resistance. Dev Cell 2024:S1534-5807(24)00301-0. [PMID: 38781974 DOI: 10.1016/j.devcel.2024.05.003] [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: 04/11/2023] [Revised: 02/09/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024]
Abstract
Broad-spectrum disease resistance (BSR) is crucial for controlling plant diseases and relies on immune signals that are subject to transcriptional and post-translational regulation. How plants integrate and coordinate these signals remains unclear. We show here that the rice really interesting new gene (RING)-type E3 ubiquitin ligase OsRING113 targets APIP5, a negative regulator of plant immunity and programmed cell death (PCD), for 26S proteasomal degradation. The osring113 mutants in Nipponbare exhibited decreased BSR, while the overexpressing OsRING113 plants showed enhanced BSR against Magnaporthe oryzae (M. oryzae) and Xanthomonas oryzae pv. oryzae (Xoo). Furthermore, APIP5 directly suppressed the transcription of the Bowman-Birk trypsin inhibitor genes OsBBTI5 and AvrPiz-t-interacting protein 4 (APIP4). Overexpression of these two genes, which are partially required for APIP5-mediated PCD and disease resistance, conferred BSR. OsBBTI5 and APIP4 associated with and stabilized the pathogenesis-related protein OsPR1aL, which promotes M. oryzae resistance. Our results identify an immune module with integrated and coordinated hierarchical regulations that confer BSR in plants.
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Affiliation(s)
- Chongyang Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hong Fang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jisong Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hui Tao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Debao Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Mengchao Qin
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Feng He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ruyi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Guo-Liang Wang
- Department of Plant Pathology, The Ohio State University, Columbus, OH 43210, USA
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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5
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Parajuli A, Borphukan B, Sanguinet KA, Zhang Z. In silico analysis identified bZIP transcription factors genes responsive to abiotic stress in Alfalfa (Medicago sativa L.). BMC Genomics 2024; 25:497. [PMID: 38773372 PMCID: PMC11106943 DOI: 10.1186/s12864-024-10277-3] [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: 03/23/2023] [Accepted: 04/02/2024] [Indexed: 05/23/2024] Open
Abstract
BACKGROUND Alfalfa (Medicago sativa L.) is the most cultivated forage legume around the world. Under a variety of growing conditions, forage yield in alfalfa is stymied by biotic and abiotic stresses including heat, salt, drought, and disease. Given the sessile nature of plants, they use strategies including, but not limited to, differential gene expression to respond to environmental cues. Transcription factors control the expression of genes that contribute to or enable tolerance and survival during periods of stress. Basic-leucine zipper (bZIP) transcription factors have been demonstrated to play a critical role in regulating plant growth and development as well as mediate the responses to abiotic stress in several species, including Arabidopsis thaliana, Oryza sativa, Lotus japonicus and Medicago truncatula. However, there is little information about bZIP transcription factors in cultivated alfalfa. RESULT In the present study, 237 bZIP genes were identified in alfalfa from publicly available sequencing data. Multiple sequence alignments showed the presence of intact bZIP motifs in the identified sequences. Based on previous phylogenetic analyses in A. thaliana, alfalfa bZIPs were similarly divided and fell into 10 groups. The physico-chemical properties, motif analysis and phylogenetic study of the alfalfa bZIPs revealed high specificity within groups. The differential expression of alfalfa bZIPs in a suite of tissues indicates that bZIP genes are specifically expressed at different developmental stages in alfalfa. Similarly, expression analysis in response to ABA, cold, drought and salt stresses, indicates that a subset of bZIP genes are also differentially expressed and likely play a role in abiotic stress signaling and/or tolerance. RT-qPCR analysis on selected genes further verified these differential expression patterns. CONCLUSIONS Taken together, this work provides a framework for the future study of bZIPs in alfalfa and presents candidate bZIPs involved in stress-response signaling.
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Affiliation(s)
- Atit Parajuli
- Department of Crop and Soil Science, Washington State University, 99164, Pullman, WA, USA
| | - Bhabesh Borphukan
- Department of Crop and Soil Science, Washington State University, 99164, Pullman, WA, USA
| | - Karen A Sanguinet
- Department of Crop and Soil Science, Washington State University, 99164, Pullman, WA, USA.
| | - Zhiwu Zhang
- Department of Crop and Soil Science, Washington State University, 99164, Pullman, WA, USA.
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6
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Qing T, Xie TC, Zhu QY, Lu HP, Liu JX. Regulation of metal homoeostasis by two F-group bZIP transcription factors bZIP48 and bZIP50 in rice. PLANT, CELL & ENVIRONMENT 2024; 47:1852-1864. [PMID: 38334305 DOI: 10.1111/pce.14852] [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: 05/06/2023] [Revised: 12/02/2023] [Accepted: 01/30/2024] [Indexed: 02/10/2024]
Abstract
Zinc (Zn) deficiency not only impairs plant growth and development but also has negative effects on human health. Rice (Oryza Sativa L.) is a staple food for over half of the global population, yet the regulation of Zn deficiency response in rice remains largely unknown. In this study, we provide evidence that two F-group bZIP transcription factors, OsbZIP48/50, play a crucial role in Zn deficiency response. Mutations in OsbZIP48/50 result in impaired growth and reduced Zn/Fe/Cu content under Zn deficiency conditions. The N-terminus of OsbZIP48/OsbZIP50 contains two Zn sensor motifs (ZSMs), deletion or mutation of these ZSMs leads to increased nuclear localization. Both OsbZIP48 and OsbZIP50 exhibit transcriptional activation activity, and the upregulation of 1117 genes involved in metal uptake and other processes by Zn deficiency is diminished in the OsbZIP48/50 double mutant. Both OsbZIP48 and OsbZIP50 bind to the promoter of OsZIP10 and activate the ZDRE cis-element. Amino acid substitution mutation of the ZSM domain of OsbZIP48 in OsbZIP50 mutant background increases the content of Zn/Fe/Cu in brown rice seeds and leaves. Therefore, this study demonstrates that OsbZIP48/50 play a crucial role in regulating metal homoeostasis and identifies their downstream genes involved in the Zn deficiency response in rice.
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Affiliation(s)
- Tao Qing
- State Key Laboratory of Plant Environmental Resilience, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Tian-Ci Xie
- State Key Laboratory of Plant Environmental Resilience, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Qiao-Yun Zhu
- State Key Laboratory of Plant Environmental Resilience, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Hai-Ping Lu
- State Key Laboratory of Plant Environmental Resilience, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jian-Xiang Liu
- State Key Laboratory of Plant Environmental Resilience, College of Life Sciences, Zhejiang University, Hangzhou, China
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Hu S, Du B, Mu G, Jiang Z, Li H, Song Y, Zhang B, Xia J, Rouached H, Zheng L. The transcription factor OsbZIP48 governs rice responses to zinc deficiency. PLANT, CELL & ENVIRONMENT 2024; 47:1526-1542. [PMID: 38251320 DOI: 10.1111/pce.14825] [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: 05/05/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/23/2024]
Abstract
Zinc (Zn) deficiency is the most prevalent micronutrient disorder in rice and leads to delayed development and decreased yield. Nevertheless, despite its primary importance, how rice responds to Zn deficiency remains poorly understood. This study presents genetic evidence supporting the crucial role of OsbZIP48 in regulating rice's response to Zn deficiency, consistent with earlier findings in the model plant Arabidopsis. Genetic inactivation of OsbZIP48 in rice seedlings resulted in heightened sensitivity to Zn deficiency and reduced Zn translocation from roots to shoots. Consistently, OsbZIP48 was constitutively expressed in roots, slightly induced by Zn deficiency in shoots and localized into nuclei induced by Zn deficiency. Comparative transcriptome analysis of the wild-type plants and osbzip48 mutant grown under Zn deficiency enabled the identification of OsbZIP48 target genes, including key Zn transporter genes (OsZIP4 and OsZIP8). We demonstrated that OsbZIP48 controlled the expressions of these genes by directly binding to their promoters, specifically to the Zn deficiency response element motif. This study establishes OsbZIP48 as a critical transcription factor in rice's response to Zn deficiency, offering valuable insights for developing Zn-biofortified rice varieties to combat global Zn limitation.
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Affiliation(s)
- Shubao Hu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
- College of Life sciences, Anqing Normal University, Anqing, China
| | - Binbin Du
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Guangmao Mu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Zichen Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Hui Li
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Yuxinrui Song
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Baolei Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Jixing Xia
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Hatem Rouached
- Department of Plant, Soil, and Microbial Sciences, Plant Resilience Institute, Michigan State University, East Lansing, Michigan, USA
| | - Luqing Zheng
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
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8
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Ayaz A, Jalal A, Zhang X, Khan KA, Hu C, Li Y, Hou X. In-Depth Characterization of bZIP Genes in the Context of Endoplasmic Reticulum (ER) Stress in Brassica campestris ssp. chinensis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1160. [PMID: 38674568 PMCID: PMC11053814 DOI: 10.3390/plants13081160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024]
Abstract
Numerous studies have been conducted to investigate the genomic characterization of bZIP genes and their involvement in the cellular response to endoplasmic reticulum (ER) stress. These studies have provided valuable insights into the coordinated cellular response to ER stress, which is mediated by bZIP transcription factors (TFs). However, a comprehensive and systematic investigations regarding the role of bZIP genes and their involvement in ER stress response in pak choi is currently lacking in the existing literature. To address this knowledge gap, the current study was initiated to elucidate the genomic characteristics of bZIP genes, gain insight into their expression patterns during ER stress in pak choi, and investigate the protein-to-protein interaction of bZIP genes with the ER chaperone BiP. In total, 112 members of the BcbZIP genes were identified through a comprehensive genome-wide analysis. Based on an analysis of sequence similarity, gene structure, conserved domains, and responsive motifs, the identified BcbZIP genes were categorized into 10 distinct subfamilies through phylogenetic analysis. Chromosomal location and duplication events provided insight into their genomic context and evolutionary history. Divergence analysis estimated their evolutionary history with a predicted divergence time ranging from 0.73 to 80.71 million years ago (MYA). Promoter regions of the BcbZIP genes were discovered to exhibit a wide variety of cis-elements, including light, hormone, and stress-responsive elements. GO enrichment analysis further confirmed their roles in the ER unfolded protein response (UPR), while co-expression network analysis showed a strong relationship of BcbZIP genes with ER-stress-responsive genes. Moreover, gene expression profiles and protein-protein interaction with ER chaperone BiP further confirmed their roles and capacity to respond to ER stress in pak choi.
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Affiliation(s)
- Aliya Ayaz
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Abdul Jalal
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiaoli Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Khalid Ali Khan
- Applied College, Center of Bee Research and Its Products (CBRP), Unit of Bee Research and Honey Production, and Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Chunmei Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Ying Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xilin Hou
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Science and Technology/National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
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He L, Wu Z, Wang X, Zhao C, Cheng D, Du C, Wang H, Gao Y, Zhang R, Han J, Xu J. A novel maize F-bZIP member, ZmbZIP76, functions as a positive regulator in ABA-mediated abiotic stress tolerance by binding to ACGT-containing elements. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 341:111952. [PMID: 38072329 DOI: 10.1016/j.plantsci.2023.111952] [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: 09/05/2023] [Revised: 10/31/2023] [Accepted: 12/06/2023] [Indexed: 02/10/2024]
Abstract
The group F-bZIP transcription factors (TFs) in Arabidopsis are involved in nutrient deficiency or salt stress responses. Nevertheless, our learning about the functions of group F-bZIP genes in maize remains limited. Here, we cloned a new F-bZIP gene (ZmbZIP76) from maize inbred line He344. The expression of ZmbZIP76 in maize was dramatically induced by high salt, osmotic stress and abscisic acid. Accordingly, overexpression of ZmbZIP76 increased tolerance of transgenic plants to salt and osmotic stress. In addition, ZmbZIP76 functions as a nuclear transcription factor and upregulates the expression of a range of abiotic stress-responsive genes by binding to the ACGT-containing elements, leading to enhanced reactive oxygen species (ROS) scavenging capability, increased abscisic acid level, proline content, and ratio of K+/Na+, reduced water loss rate, and membrane damage. These physiological changes caused by ZmbZIP76 ultimately enhanced tolerance of transgenic plants to salt and osmotic stress.
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Affiliation(s)
- Lin He
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Zixuan Wu
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Xueheyuan Wang
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Changjiang Zhao
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Dianjun Cheng
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Chuhuai Du
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Haoyu Wang
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Yuan Gao
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Ruijia Zhang
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Jienan Han
- Institute of Crop Science, Chinese Academy of Agricultural Science, No. 12 Zhongguancun South Street, Haidian District, Beijing 100081, PR China.
| | - Jingyu Xu
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina.
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10
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Gate T, Hill L, Miller AJ, Sanders D. AtIAR1 is a Zn transporter that regulates auxin metabolism in Arabidopsis thaliana. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:1437-1450. [PMID: 37988591 PMCID: PMC10901206 DOI: 10.1093/jxb/erad468] [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: 09/02/2023] [Accepted: 11/20/2023] [Indexed: 11/23/2023]
Abstract
Root growth in Arabidopsis is inhibited by exogenous auxin-amino acid conjugates, and mutants resistant to one such conjugate [indole-3-acetic acid (IAA)-Ala] map to a gene (AtIAR1) that is a member of a metal transporter family. Here, we test the hypothesis that AtIAR1 controls the hydrolysis of stored conjugated auxin to free auxin through zinc transport. AtIAR1 complements a yeast mutant sensitive to zinc, but not manganese- or iron-sensitive mutants, and the transporter is predicted to be localized to the endoplasmic reticulum/Golgi in plants. A previously identified Atiar1 mutant and a non-expressed T-DNA mutant both exhibit altered auxin metabolism, including decreased IAA-glucose conjugate levels in zinc-deficient conditions and insensitivity to the growth effect of exogenous IAA-Ala conjugates. At a high concentration of zinc, wild-type plants show a novel enhanced response to root growth inhibition by exogenous IAA-Ala which is disrupted in both Atiar1 mutants. Furthermore, both Atiar1 mutants show changes in auxin-related phenotypes, including lateral root density and hypocotyl length. The findings therefore suggest a role for AtIAR1 in controlling zinc release from the secretory system, where zinc homeostasis plays a key role in regulation of auxin metabolism and plant growth regulation.
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Affiliation(s)
- Thomas Gate
- Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
| | - Lionel Hill
- Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
| | - Anthony J Miller
- Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
| | - Dale Sanders
- Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
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11
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Bao G, Ashraf U, Li L, Qiao J, Wang C, Zheng Y. Transcription Factor OsbZIP60-like Regulating OsP5CS1 Gene and 2-Acetyl-1-pyrroline (2-AP) Biosynthesis in Aromatic Rice. PLANTS (BASEL, SWITZERLAND) 2023; 13:49. [PMID: 38202357 PMCID: PMC10780308 DOI: 10.3390/plants13010049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/17/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024]
Abstract
The most important volatile in determining the aroma of fragrant rice is 2-Acetyl-1-pyrroline (2-AP); however, the transcriptional regulation mechanism of 2-AP biosynthesis in fragrant rice is still unclear. In this study, Osp5cs1 knockout mutant lines and OsP5CS1 over-expression lines were constructed by the genetic transformation of the Indica rice cultivar, i.e., 'Zhonghua11', which knocks out OsBADH2 to produce fragrance in aromatic rice. The OsP5CS1 gene was also identified as a key gene in the 2-AP biosynthesis pathway of aromatic rice. The OsP5CS1 promoter was used as bait, and the OsbZIP60-like transcription factor was screened by yeast one-hybrid assays. The OsbZIP60-like transcription factor specifically bound to the OsP5CS1 gene. The dual luciferase reporting system found that the OsbZIP60-like transcription factor promoted the transcriptional activation of OsP5CS1. Compared with the wild type, OsP5CS1 gene expression was significantly down-regulated in the Osbzip60-like mutant and resulted in a substantial reduction in 2-AP biosynthesis. Moreover, the OsP5CS1 gene expression was significantly up-regulated in OsbZIP60-like over-expressed plants, and the 2-AP concentrations were also increased, whereas the Osbzip60-like mutants were found to be sensitive to Zn deficiency. Overall, the OsbZIP60-like transcription factor promoted the 2-AP accumulation. This study provides a theoretical basis for the transcriptional regulation mechanism of 2-AP biosynthesis and explores the function of the OsbZIP transcription factor in fragrant rice.
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Affiliation(s)
- Gegen Bao
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (L.L.); (J.Q.)
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
| | - Umair Ashraf
- Department of Botany, Division of Science and Technology, University of Education, Lahore 54770, Pakistan;
| | - Lin Li
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (L.L.); (J.Q.)
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
| | - Jingxuan Qiao
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (L.L.); (J.Q.)
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
| | - Chunling Wang
- College of Life Science, Huizhou University, Huizhou 516007, China;
| | - Yixiong Zheng
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
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12
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Jalil S, Nazir MM, Ali Q, Zulfiqar F, Moosa A, Altaf MA, Zaid A, Nafees M, Yong JWH, Jin X. Zinc and nano zinc mediated alleviation of heavy metals and metalloids in plants: an overview. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:870-888. [PMID: 37598713 DOI: 10.1071/fp23021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 07/30/2023] [Indexed: 08/22/2023]
Abstract
Heavy metals and metalloids (HMs) contamination in the environment has heightened recently due to increasing global concern for food safety and human livability. Zinc (Zn2+ ) is an important nutrient required for the normal development of plants. It is an essential cofactor for the vital enzymes involved in various biological mechanisms of plants. Interestingly, Zn2+ has an additional role in the detoxification of HMs in plants due to its unique biochemical-mediating role in several soil and plant processes. During any exposure to high levels of HMs, the application of Zn2+ would confer greater plant resilience by decreasing oxidative stress, maintaining uptake of nutrients, photosynthesis productivity and optimising osmolytes concentration. Zn2+ also has an important role in ameliorating HMs toxicity by regulating metal uptake through the expression of certain metal transporter genes, targeted chelation and translocation from roots to shoots. This review examined the vital roles of Zn2+ and nano Zn in plants and described their involvement in alleviating HMs toxicity in plants. Moving forward, a broad understanding of uptake, transport, signalling and tolerance mechanisms of Zn2+ /zinc and its nanoparticles in alleviating HMs toxicity of plants will be the first step towards a wider incorporation of Zn2+ into agricultural practices.
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Affiliation(s)
- Sanaullah Jalil
- The Key Laboratory for Crop Germplasm Resource of Zhejiang Province, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | | | - Qurban Ali
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, Punjab University, Lahore 54590, Pakistan
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Anam Moosa
- Department of Plant Pathology, Faculty of Agricultural and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | | | - Abbu Zaid
- Department of Botany, Government Gandhi Memorial Science College, Jammu, India
| | - Muhammad Nafees
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp 23456, Sweden
| | - Xiaoli Jin
- The Key Laboratory for Crop Germplasm Resource of Zhejiang Province, Zhejiang University, Hangzhou, Zhejiang 310058, China
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13
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Khan WA, Penrose B, Shabala S, Zhang X, Cao F, Zhou M. Mapping QTL for Mineral Accumulation and Shoot Dry Biomass in Barley under Different Levels of Zinc Supply. Int J Mol Sci 2023; 24:14333. [PMID: 37762635 PMCID: PMC10532338 DOI: 10.3390/ijms241814333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Zinc (Zn) deficiency is a common limiting factor in agricultural soils, which leads to significant reduction in both the yield and nutritional quality of agricultural produce. Exploring the quantitative trait loci (QTL) for shoot and grain Zn accumulation would help to develop new barley cultivars with greater Zn accumulation efficiency. In this study, two glasshouse experiments were conducted by growing plants under adequate and low Zn supply. From the preliminary screening of ten barley cultivars, Sahara (0.05 mg/pot) and Yerong (0.06 mg/pot) showed the lowest change in shoot Zn accumulation, while Franklin (0.16 mg/pot) had the highest change due to changes in Zn supply for plant growth. Therefore, the double haploid (DH) population derived from Yerong × Franklin was selected to identify QTL for shoot mineral accumulation and biomass production. A major QTL hotspot was detected on chromosome 2H between 31.91 and 73.12 cM encoding genes for regulating shoot mineral accumulations of Zn, Fe, Ca, K and P, and the biomass. Further investigation demonstrated 16 potential candidate genes for mineral accumulation, in addition to a single candidate gene for shoot biomass in the identified QTL region. This study provides a useful resource for enhancing nutritional quality and yield potential in future barley breeding programs.
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Affiliation(s)
- Waleed Amjad Khan
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, TAS 7001, Australia; (W.A.K.); (B.P.); (S.S.)
| | - Beth Penrose
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, TAS 7001, Australia; (W.A.K.); (B.P.); (S.S.)
| | - Sergey Shabala
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, TAS 7001, Australia; (W.A.K.); (B.P.); (S.S.)
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan 528000, China
| | - Xueqing Zhang
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China;
| | - Fangbin Cao
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China;
| | - Meixue Zhou
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, TAS 7001, Australia; (W.A.K.); (B.P.); (S.S.)
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14
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Ma Y, Wen Y, Wang C, Wu Z, Yuan X, Xiong Y, Chen K, He L, Zhang Y, Wang Z, Li L, Yang Z, Sun Y, Chen Z, Ma J. ZIP Genes Are Involved in the Retransfer of Zinc Ions during the Senescence of Zinc-Deficient Rice Leaves. Int J Mol Sci 2023; 24:13989. [PMID: 37762290 PMCID: PMC10531140 DOI: 10.3390/ijms241813989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Rice lacks sufficient amounts of zinc despite its vitality for human health. Leaf senescence enables redistribution of nutrients to other organs, yet Zn retransfer during deficiency is often overlooked. In this hydroponic experiment, we studied the effect of Zn deficiency on rice seedlings, focusing on the fourth leaf under control and deficient conditions. Growth phenotype analysis showed that the growth of rice nodal roots was inhibited in Zn deficiency, and the fourth leaf exhibited accelerated senescence and increased Zn ion transfer. Analyzing differentially expressed genes showed that Zn deficiency regulates more ZIP family genes involved in Zn ion retransfer. OsZIP3 upregulation under Zn-deficient conditions may not be induced by Zn deficiency, whereas OsZIP4 is only induced during Zn deficiency. Gene ontology enrichment analysis showed that Zn-deficient leaves mobilized more biological pathways (BPs) during aging, and the enrichment function differed from that of normal aging leaves. The most apparent "zinc ion transport" BP was stronger than that of normal senescence, possibly due to Zn-deficient leaves mobilizing large amounts of BP related to lipid metabolism during senescence. These results provide a basis for further functional analyses of genes and the study of trace element transfer during rice leaf senescence.
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Affiliation(s)
- Yangming Ma
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Yanfang Wen
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Cheng Wang
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Ziniu Wu
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Xiaojuan Yuan
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Ying Xiong
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Kairui Chen
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Limei He
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Yue Zhang
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Zhonglin Wang
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Leilei Li
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Zhiyuan Yang
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Yongjian Sun
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Zhongkui Chen
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Jun Ma
- Rice Cultivation Laboratory, Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
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15
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Mohammed KFA, Kaul T, Agrawal PK, Thangaraj A, Kaul R, Sopory SK. Function identification and characterization of Oryza sativa ZRT and IRT-like proteins computationally for nutrition and biofortification in rice. J Biomol Struct Dyn 2023; 41:7490-7510. [PMID: 36111599 DOI: 10.1080/07391102.2022.2118169] [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: 05/09/2022] [Accepted: 08/19/2022] [Indexed: 10/14/2022]
Abstract
Zinc plays a very critical role and function in all organisms. Its deficiency can cause a serious issue. In Oryza sativa, the ZRT/IRT transporter-like proteins play a role in the zinc metal uptake and transport. Few OsZIPs genes have been validated and characterized for their biological functions and most of OsZIPs are not well physiologically, biochemically and phenotypically characterized. In the current study, they analyzed for their function through subcellular localization, phylogenetic analysis, homology modeling, expression analysis, protein-protein interaction (PPI) network prediction, and prediction of their binding sites. Hierarchical clustering of OsZIP genes based on different anatomical parts and developmental stages also orthologs prediction was identified. The presence of SNPs, SSRs, ESTs, FSTs, MPSS, and SAGE tags were analyzed for useful development of markers. SNPs were identified in all OsZIPs genes and each gene was further classified based on their number and position in the 3'UTR and 5'UTR regions of the gene-specific sequences. Binding clusters and their location on the protein sequences were predicted. We found Changing in residues number and position which were due to partial overlapping and sequence alignment, but they share the same mechanism of binding and transporting Zinc. A wide range of CRISPR Cas9 gRNAs was designed based on single nucleotide polymorphism (SNP) for each OsZIP transporter gene for well-function identification and characterization with genome-wide association studies. Hence this study would provide useful information, understanding, and predicting molecular insights for the future studies that will help for improvement of nutritional quality of rice varieties.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Khaled Fathy Abdelmotelb Mohammed
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
- Genetics Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Tanushri Kaul
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
| | - Pawan Kumar Agrawal
- Plant Breeding, Main Building, Odisha University of Agriculture and Technology, Bhubaneswar, India
| | - Arulprakash Thangaraj
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
| | - Rashmi Kaul
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
| | - Sudhir K Sopory
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
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16
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Lu J, Ye R, Qu M, Wang Y, Liang T, Lin J, Xie R, Ke Y, Gao J, Li C, Guo J, Tang W, Li W, Chen S. Combined transcriptome and proteome analysis revealed the molecular regulation mechanisms of zinc homeostasis and antioxidant machinery in tobacco in response to different zinc supplies. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 202:107919. [PMID: 37557018 DOI: 10.1016/j.plaphy.2023.107919] [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: 05/15/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/11/2023]
Abstract
Zinc (Zn) is an essential micronutrient for plants. Adequate regulation of Zn uptake, transport and distribution, and adaptation to Zn-deficiency stress or Zn-excess toxicity are crucial for plant growth and development. However, little has been done to understand the molecular responses of plants toward different Zn supply levels. In the present study, we investigated the growth and physiological responses of tobacco seedlings grown under Zn-completely deficient, Zn-limiting, Zn-normal, and Zn-4-fold sufficient conditions, respectively, and demonstrated that Zn deficiency/limitation caused oxidative stress and impaired growth of tobacco plants. Combined transcriptome and proteome analysis revealed up-regulation of genes/proteins associated with Zn uptake and distribution, including ZIPs, NAS3s, and HMA1s, and up-regulation of genes/proteins involved in regulation of oxidative stress, including SODs, APX1s, GPX6, and GSTs in tobacco seedlings in response to Zn deficiency/limitation, suggesting that tobacco possessed mechanisms to regulate Zn homeostasis primarily through up-regulation of the ZIPs-NAS3s module, and to alleviate Zn deficiency/limitation-induced oxidative stress through activation of the antioxidant machinery. Our results provide novel insights into the adaptive mechanisms of tobacco in response to different Zn supplies, and would lay a theoretical foundation for development of varieties of tobacco or its relatives with high tolerance to Zn-deficiency.
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Affiliation(s)
- Jianjun Lu
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China
| | - Rongrong Ye
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China
| | - Mengyu Qu
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yuemin Wang
- Fujian Institute of Tobacco Sciences, Fuzhou 350003, China
| | - Tingmin Liang
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China; College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jinbin Lin
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China; College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Rongrong Xie
- Fujian Institute of Tobacco Sciences, Fuzhou 350003, China; International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yuqin Ke
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jingjuan Gao
- Fujian Institute of Tobacco Sciences, Fuzhou 350003, China; International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chunying Li
- Fujian Institute of Tobacco Sciences, Fuzhou 350003, China
| | - Jinping Guo
- Fujian Institute of Tobacco Sciences, Fuzhou 350003, China
| | - Weiqi Tang
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China.
| | - Wenqing Li
- Fujian Institute of Tobacco Sciences, Fuzhou 350003, China.
| | - Songbiao Chen
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China.
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17
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Kimura S, Vaattovaara A, Ohshita T, Yokoyama K, Yoshida K, Hui A, Kaya H, Ozawa A, Kobayashi M, Mori IC, Ogata Y, Ishino Y, Sugano SS, Nagano M, Fukao Y. Zinc deficiency-induced defensin-like proteins are involved in the inhibition of root growth in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:1071-1083. [PMID: 37177878 DOI: 10.1111/tpj.16281] [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: 02/28/2021] [Revised: 04/30/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023]
Abstract
The depletion of cellular zinc (Zn) adversely affects plant growth. Plants have adaptation mechanisms for Zn-deficient conditions, inhibiting growth through the action of transcription factors and metal transporters. We previously identified three defensin-like (DEFL) proteins (DEFL203, DEFL206 and DEFL208) that were induced in Arabidopsis thaliana roots under Zn-depleted conditions. DEFLs are small cysteine-rich peptides involved in defense responses, development and excess metal stress in plants. However, the functions of DEFLs in the Zn-deficiency response are largely unknown. Here, phylogenetic tree analysis revealed that seven DEFLs (DEFL202-DEFL208) were categorized into one subgroup. Among the seven DEFLs, the transcripts of five (not DEFL204 and DEFL205) were upregulated by Zn deficiency, consistent with the presence of cis-elements for basic-region leucine-zipper 19 (bZIP19) or bZIP23 in their promoter regions. Microscopic observation of GFP-tagged DEFL203 showed that DEFL203-sGFP was localized to the apoplast and plasma membrane. Whereas a single mutation of the DEFL202 or DEFL203 genes only slightly affected root growth, defl202 defl203 double mutants showed enhanced root growth under all growth conditions. We also showed that the size of the root meristem was increased in the double mutants compared with the wild type. Our results suggest that DEFL202 and DEFL203 are redundantly involved in the inhibition of root growth under Zn-deficient conditions through a reduction in root meristem length and cell number.
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Affiliation(s)
- Sachie Kimura
- Ritsumeikan Global Innovation Research Organization, Ritsumeikan University, Shiga, 525-8577, Japan
| | - Aleksia Vaattovaara
- Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre, University of Helsinki, Helsinki, FI-00014, Finland
| | - Tomoya Ohshita
- Graduate School of Life Science, Ritsumeikan University, Shiga, 525-8577, Japan
| | - Kotomi Yokoyama
- Graduate School of Life Science, Ritsumeikan University, Shiga, 525-8577, Japan
| | - Kota Yoshida
- Graduate School of Life Science, Ritsumeikan University, Shiga, 525-8577, Japan
| | - Agnes Hui
- Graduate School of Life Science, Ritsumeikan University, Shiga, 525-8577, Japan
| | - Hidetaka Kaya
- Department of Food Production Science, Ehime University, Ehime, 790-8566, Japan
| | - Ai Ozawa
- Graduate School of Life Science, Ritsumeikan University, Shiga, 525-8577, Japan
| | - Mami Kobayashi
- Graduate School of Life Science, Ritsumeikan University, Shiga, 525-8577, Japan
| | - Izumi C Mori
- Institute of Plant Science and Resources, Okayama University, Okayama, 710-0046, Japan
| | - Yoshiyuki Ogata
- Department of Agricultural Biology, Graduate School of Agriculture, Osaka Metropolitan University, Osaka, 599-8531, Japan
| | - Yoko Ishino
- Graduate School of Innovation and Technology Management, Yamaguchi University, Yamaguchi, 755-8611, Japan
| | - Shigeo S Sugano
- Ritsumeikan Global Innovation Research Organization, Ritsumeikan University, Shiga, 525-8577, Japan
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, 305-8566, Japan
| | - Minoru Nagano
- Graduate School of Life Science, Ritsumeikan University, Shiga, 525-8577, Japan
| | - Yoichiro Fukao
- Graduate School of Life Science, Ritsumeikan University, Shiga, 525-8577, Japan
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18
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Atitsogbey P, Kyereh E, Ofori H, Johnson PNT, Steiner-Asiedu M. Heavy metal, microbial and pesticides residue contaminations are limiting the potential consumption of green leafy vegetables in Ghana: An overview. Heliyon 2023; 9:e15466. [PMID: 37151673 PMCID: PMC10161709 DOI: 10.1016/j.heliyon.2023.e15466] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 05/09/2023] Open
Abstract
Green leafy vegetables (such as cocoyam (Colocasia spp) leaves, spinach (Spinach spp), amaranths (Amaranthus spp), roselle leaves (Hibiscus spp), and lettuce (Lactuca spp)) form a major part of Ghanaian meals providing essential vitamin such as A, B and C and minerals including iron and calcium as well as essential bioactive compounds. However, the practices involved in the production, distribution and handling of these nutrient rich vegetables, by most value chain actors in Ghana, unfortunately pre-dispose them to contamination with pathogens, heavy metals and pesticides residues. These have therefore raised public health concerns regarding the safety and quality of these green leafy vegetables. Understanding the current perspectives of the type of pathogens, heavy metals and pesticide contaminants that are found in leafy vegetables and their health impacts on consumers will go a long way in helping to identify appropriate mitigation measures that could be used to improve the practices involved and thereby help safeguard human health. This review examined reported cases of microbial, heavy metal and pesticides residue contamination of green leafy vegetables in Ghana from 2005 to 2022. Notable pathogenic microorganisms were Ascaris eggs and larvae, faecal coliform, Salmonella spp., Staphylococcus aureus Streptococci, Clostridium perfringes, and Escherichia coli. In addition, Lead (Pb), Cadmium (Cr), Chromium (Cr), Zinc (Zn), Iron (Fe), Copper (Cu) and Manganese (Mn) have been detected in green leafy vegetables over the years in most Ghanaian cities. Pesticides residues from organochlorine, organophosphorus and synthetic pyrethroid have also been reported. Overall, microbial, heavy metals and pesticide residue contamination of Ghanaian green leafy vegetables on the farms and markets were significant. Hence, mitigation measures to curb the contamination of these vegetables, through the food chain, is urgently required to safeguard public health.
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Affiliation(s)
- Patience Atitsogbey
- Department of Nutrition and Food Science, University of Ghana, Box LG134, Ghana
| | - Emmanuel Kyereh
- Council for Scientific and Industrial Research-Food Research Institute, Box M.20, Accra, Ghana
- Department of Agro-processing Technology and Food Biosciences, CSIR-College of Science and Technology, Box M. 20, Accra, Ghana
- Corresponding author. Council for Scientific and Industrial Research-Food Research Institute, Box M.20, Accra, Ghana.
| | - Hayford Ofori
- Council for Scientific and Industrial Research-Food Research Institute, Box M.20, Accra, Ghana
- Department of Agro-processing Technology and Food Biosciences, CSIR-College of Science and Technology, Box M. 20, Accra, Ghana
| | - Paa-Nii T. Johnson
- Department of Agro-processing Technology and Food Biosciences, CSIR-College of Science and Technology, Box M. 20, Accra, Ghana
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Zhu S, Li W, Yan S, Shi W. Transcriptomic Analysis of Differentially Expressed Genes in Arabidopsis thaliana Overexpressing BnMYB2 from Boehmeria nivea under Cadmium Stress. Catalysts 2023. [DOI: 10.3390/catal13040662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Boehmeria nivea (ramie) is an important fiber crop with strong tolerance to cadmium (Cd). In our previous study, a novel MYB transcription factor gene from ramie, BnMYB2, was found to positively regulate Cd tolerance and accumulation in the transgenic Arabidopsis thaliana lines. Herein, transcriptome sequencing was performed to identify the differentially expressed genes involved in cadmium response between the wild-type (WT) and BnMYB2 overexpressed lines; 1598 differentially expressed genes (DEGs) were detected in the shoot. GO and KEGG analysis indicated that the majority of DEGs belonged to the categories of transcription factors, plant hormone signal transduction and nitrogen metabolism. The expression level of the Ib subgroup bHLH genes (AtbHLH38, AtbHLH39, AtbHLH100 and AtbHLH101) and nitrogen assimilation-related genes (AtNIA1, AtNIA2, AtNIR1 and AtASN2) were significantly higher than that of WT, accompanied with the positive changes in iron (Fe) and total nitrogen content in the shoot of BnMYB2 overexpression lines. Several DEGs belonging to the bZIP transcription factor family or SAUR family were also found up-regulated in the transgenic plants. These results provide important clues for elucidating how the molecular mechanisms of BnMYB2 regulate plant response to Cd stress.
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20
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Banerjee S, Roy P, Nandi S, Roy S. Advanced biotechnological strategies towards the development of crops with enhanced micronutrient content. PLANT GROWTH REGULATION 2023; 100:355-371. [PMID: 36686885 PMCID: PMC9845834 DOI: 10.1007/s10725-023-00968-4] [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: 08/02/2022] [Accepted: 01/06/2023] [Indexed: 05/17/2023]
Abstract
Micronutrients are essential mineral elements required for both plant and human development.An integrated system involving soil, climatic conditions, and types of crop plants determines the level of micronutrient acquisition and utilization. Most of the staple food crops consumed globally predominantly include the cereal grains, tubers and roots, respectively and in many cases, particularly in the resource-poor countries they are grown in nutrient-deficient soils. These situations frequently lead to micronutrient deficiency in crops. Moreover, crop plants with micronutrient deficiency also show high level of susceptibility to various abiotic and biotic stress factors. Apart from this, climate change and soil pollution severely affect the accumulation of micronutrients, such as zinc (Zn), iron (Fe), selenium (Se), manganese (Mn), and copper (Cu) in food crops. Therefore, overcoming the issue of micronutrient deficiency in staple crops and to achieve the adequate level of food production with enriched nutrient value is one of the major global challenges at present. Conventional breeding approaches are not adequate to feed the increasing global population with nutrient-rich staple food crops. To address these issues, alongside traditional approaches, genetic modification strategies have been adopted during the past couple of years in order to enhance the transport, production, enrichment and bioavailability of micronutrients in staple crops. Recent advances in agricultural biotechnology and genome editing approaches have shown promising response in the development of micronutrient enriched biofortified crops. This review highlights the current advancement of our knowledge on the possible implications of various biotechnological tools for the enrichment and enhancement of bioavailability of micronutrients in crops.
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Affiliation(s)
- Samrat Banerjee
- Department of Botany, UGC Centre for Advanced Studies, The University of Burdwan, Golapbag Campus, 713104 Burdwan, West Bengal India
| | - Pinaki Roy
- Department of Botany, UGC Centre for Advanced Studies, The University of Burdwan, Golapbag Campus, 713104 Burdwan, West Bengal India
| | - Shreyashi Nandi
- Department of Botany, UGC Centre for Advanced Studies, The University of Burdwan, Golapbag Campus, 713104 Burdwan, West Bengal India
| | - Sujit Roy
- Department of Botany, UGC Centre for Advanced Studies, The University of Burdwan, Golapbag Campus, 713104 Burdwan, West Bengal India
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21
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Fili S, Walker E. A Simple Semi-hydroponic System for Studying Iron Homeostasis in Maize. Methods Mol Biol 2023; 2665:191-201. [PMID: 37166602 DOI: 10.1007/978-1-0716-3183-6_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Hydroponic-based systems for plant growth allow control of the nutrients that plants take up through the provided nutrient solution. Different formulations of nutrient solutions enable the study of nutrient deficiencies in plants. Here we describe a procedure for setting up a simple semi-hydroponic system to grow maize seedlings. The system can be set up on a small or large scale, depending on the number of individuals studied. A modified nutrient solution is used for growing maize seedlings in iron-replete and iron-depleted conditions. This setup allows for studies of iron-deficiency responses in maize.
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Affiliation(s)
- Stavroula Fili
- Department of Biology, University of Massachusetts Amherst, Amherst, MA, USA
| | - Elsbeth Walker
- Department of Biology, University of Massachusetts Amherst, Amherst, MA, USA.
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22
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Yue L, Pei X, Kong F, Zhao L, Lin X. Divergence of functions and expression patterns of soybean bZIP transcription factors. FRONTIERS IN PLANT SCIENCE 2023; 14:1150363. [PMID: 37123868 PMCID: PMC10146240 DOI: 10.3389/fpls.2023.1150363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/24/2023] [Indexed: 05/03/2023]
Abstract
Soybean (Glycine max) is a major protein and oil crop. Soybean basic region/leucine zipper (bZIP) transcription factors are involved in many regulatory pathways, including yield, stress responses, environmental signaling, and carbon-nitrogen balance. Here, we discuss the members of the soybean bZIP family and their classification: 161 members have been identified and clustered into 13 groups. Our review of the transcriptional regulation and functions of soybean bZIP members provides important information for future study of bZIP transcription factors and genetic resources for soybean breeding.
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Affiliation(s)
- Lin Yue
- Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Xinxin Pei
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin, China
| | - Fanjiang Kong
- Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Lin Zhao
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin, China
- *Correspondence: Xiaoya Lin, ; Lin Zhao,
| | - Xiaoya Lin
- Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
- *Correspondence: Xiaoya Lin, ; Lin Zhao,
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23
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Noda Y, Furukawa J, Suzui N, Yin YG, Matsuoka K, Kawachi N, Satoh S. Characterization of zinc uptake and translocation visualized with positron-emitting 65Zn tracer and analysis of transport-related gene expression in two Lotus japonicus accessions. ANNALS OF BOTANY 2022; 130:799-810. [PMID: 35948001 PMCID: PMC9758300 DOI: 10.1093/aob/mcac101] [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: 06/13/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND AND AIMS Zinc (Zn) is an essential element for humans and plants. However, Zn deficiency is widespread and 25 % of the world's population is at risk of Zn deficiency. To overcome the deficiency of Zn intake, crops with high Zn content are required. However, most crop-producing areas have Zn-deficient soils, therefore crops with excellent Zn uptake/transport characteristics (i.e. high Zn efficiency) are needed. Our objective was to identify the crucial factors responsible for high Zn efficiency in the legume Lotus japonicus. METHODS We evaluated Zn efficiency by static and real-time visualization of radioactive Zn (65Zn) uptake/transport in two L. japonicus accessions, MG-20 and B-129, that differ in Zn efficiency. The combination of visualization methods verified the dynamics of Zn accumulation and transport within the plant. We compared gene expression under a normal Zn concentration (control) and Zn deficiency to evaluate genetic factors that may determine the differential Zn efficiency of the accessions. KEY RESULTS The accession B-129 accumulated almost twice the amount of Zn as MG-20. In the static 65Zn images, 65Zn accumulated in meristematic tissues, such as root tips and the shoot apex, in both accessions. The positron-emitting tracer imaging system (PETIS), which follows the transport process in real time, revealed that 65Zn transport to the shoot was more rapid in B-129 than in MG-20. Many genes associated with Zn uptake and transport were more highly expressed in B-129 than in MG-20 under the control condition. These gene expression patterns under Zn deficiency differed from those under the control Zn condition. CONCLUSIONS PETIS confirmed that the real-time transport of 65Zn to the shoot was faster in B-129 than in MG-20. The high Zn efficiency of B-129 may be due to the elevated expression of a suite of Zn uptake- and transport-related genes.
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Affiliation(s)
- Yusaku Noda
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum Science and Technology (QST), Gunma, 370-1292Japan
| | - Jun Furukawa
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, 305-8572Japan
| | - Nobuo Suzui
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum Science and Technology (QST), Gunma, 370-1292Japan
| | - Yong-Gen Yin
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum Science and Technology (QST), Gunma, 370-1292Japan
| | - Keita Matsuoka
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki, 305-8572Japan
| | - Naoki Kawachi
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum Science and Technology (QST), Gunma, 370-1292Japan
| | - Shinobu Satoh
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, 305-8572Japan
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24
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Bhardwaj AK, Chejara S, Malik K, Kumar R, Kumar A, Yadav RK. Agronomic biofortification of food crops: An emerging opportunity for global food and nutritional security. FRONTIERS IN PLANT SCIENCE 2022; 13:1055278. [PMID: 36570883 PMCID: PMC9780467 DOI: 10.3389/fpls.2022.1055278] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/17/2022] [Indexed: 05/30/2023]
Abstract
Fortification of food with mineral micronutrients and micronutrient supplementation occupied the center stage during the two-year-long Corona Pandemic, highlighting the urgent need to focus on micronutrition. Focus has also been intensified on the biofortification (natural assimilation) of mineral micronutrients into food crops using various techniques like agronomic, genetic, or transgenic. Agronomic biofortification is a time-tested method and has been found useful in the fortification of several nutrients in several crops, yet the nutrient use and uptake efficiency of crops has been noted to vary due to different growing conditions like soil type, crop management, fertilizer type, etc. Agronomic biofortification can be an important tool in achieving nutritional security and its importance has recently increased because of climate change related issues, and pandemics such as COVID-19. The introduction of high specialty fertilizers like nano-fertilizers, chelated fertilizers, and water-soluble fertilizers that have high nutrient uptake efficiency and better nutrient translocation to the consumable parts of a crop plant has further improved the effectiveness of agronomic biofortification. Several new agronomic biofortification techniques like nutripriming, foliar application, soilless activation, and mechanized application techniques have further increased the relevance of agronomic biofortification. These new technological advances, along with an increased realization of mineral micronutrient nutrition have reinforced the relevance of agronomic biofortification for global food and nutritional security. The review highlights the advances made in the field of agronomic biofortification via the improved new fertilizer forms, and the emerging techniques that achieve better micronutrient use efficiency of crop plants.
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25
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Assunção AGL. The F-bZIP-regulated Zn deficiency response in land plants. PLANTA 2022; 256:108. [PMID: 36348172 PMCID: PMC9643250 DOI: 10.1007/s00425-022-04019-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
This review describes zinc sensing and transcriptional regulation of the zinc deficiency response in Arabidopsis, and discusses how their evolutionary conservation in land plants facilitates translational approaches for improving the Zn nutritional value of crop species. Zinc is an essential micronutrient for all living organisms due to its presence in a large number of proteins, as a structural or catalytic cofactor. In plants, zinc homeostasis mechanisms comprise uptake from soil, transport and distribution throughout the plant to provide adequate cellular zinc availability. Here, I discuss the transcriptional regulation of the response to zinc deficiency and the zinc sensing mechanisms in Arabidopsis, and their evolutionary conservation in land plants. The Arabidopsis F-group basic region leucine-zipper (F-bZIP) transcription factors bZIP19 and bZIP23 function simultaneously as sensors of intracellular zinc status, by direct binding of zinc ions, and as the central regulators of the zinc deficiency response, with their target genes including zinc transporters from the ZRT/IRT-like Protein (ZIP) family and nicotianamine synthase enzymes that produce the zinc ligand nicotianamine. I note that this relatively simple mechanism of zinc sensing and regulation, together with the evolutionary conservation of F-bZIP transcription factors across land plants, offer important research opportunities. One of them is to use the F-bZIP-regulated zinc deficiency response as a tractable module for evolutionary and comparative functional studies. Another research opportunity is translational research in crop plants, modulating F-bZIP activity as a molecular switch to enhance zinc accumulation. This should become a useful plant-based solution to alleviate effects of zinc deficiency in soils, which impact crop production and crop zinc content, with consequences for human nutrition globally.
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Affiliation(s)
- Ana G L Assunção
- Department of Plant and Environmental Sciences, University of Copenhagen, 1871, Frederiksberg, Denmark.
- CIBIO-InBIO, Research Centre in Biodiversity and Genetic Resources, University of Porto, 4485-661, Vairão, Portugal.
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26
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OsNAC15 Regulates Tolerance to Zinc Deficiency and Cadmium by Binding to OsZIP7 and OsZIP10 in Rice. Int J Mol Sci 2022; 23:ijms231911771. [PMID: 36233067 PMCID: PMC9569620 DOI: 10.3390/ijms231911771] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022] Open
Abstract
Zinc (Zn) deficiency and cadmium (Cd) stress are severe threats to the growth and development of plants. Increasing Zn content and/or decreasing Cd content in grain are also important objectives of rice breeding. However, the molecular mechanisms of Zn deficiency tolerance (ZDT) and Cd stress tolerance (CDT) are largely unknown in rice. Here, we report that a NAM/CUC2-like transcription factor, OsNAC15, contributes to ZDT and CDT in rice. Knockout of OsNAC15 reduced ZDT and CDT at the vegetative stage. OsNAC15 expresses in all tissues of different developmental stages, and is repressed by Zn deficiency and induced by Cd stress. OsNAC15 is a functional transcription factor with transactivation and DNA binding activities. Expression analysis of rice ZIP family genes suggested that the knockout of OsNAC15 activates or inhibits their transcriptions under Zn deficiency or Cd stress conditions. The yeast one-hybrid assay, transient transcriptional activity assay using the dual-luciferase reporter system and electrophoretic mobility shift assay demonstrated that OsNAC15 directly binds to the zinc deficiency-responsive element motifs in the promoters of OsZIP7 and OsZIP10 to repress their transcriptions. The OsNAC15–OsZIP7/10 module is an essential foundation for further study on the regulatory mechanisms of ZDT and CDT in rice.
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27
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Kawaguchi K, Nakaune M, Ma JF, Kojima M, Takebayashi Y, Sakakibara H, Otagaki S, Matsumoto S, Shiratake K. Plant Hormone and Inorganic Ion Concentrations in the Xylem Exudate of Grafted Plants Depend on the Scion-Rootstock Combination. PLANTS (BASEL, SWITZERLAND) 2022; 11:2594. [PMID: 36235460 PMCID: PMC9571263 DOI: 10.3390/plants11192594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
In grafted plants, inorganic ions and plant hormones in the xylem exudate transported from the rootstock to the scion directly or indirectly affect the scion, thereby improving the traits. Therefore, the concentration of these components in the xylem exudate of grafted plants may be an indicator for rootstock selection. On the other hand, few reports have presented a comprehensive analysis of substances transferred from the rootstock to the scion in plants grafted onto different rootstocks, primarily commercial cultivars. In this study, we measured inorganic ions and plant hormones in the xylem exudate from the rootstock to the scion in various grafted plants of tomato and eggplant. The results revealed that the concentrations of inorganic ions and plant hormones in the xylem exudate significantly differed depending on the type of rootstock. In addition, we confirmed the concentration of the inorganic ions and plant hormones in the xylem exudate of plants grafted onto the same tomato rootstock cultivars as rootstock with tomato or eggplant as the scions. As a result, the concentrations of inorganic ions and plant hormones in the xylem exudate were significantly different in the grafted plants with eggplant compared with tomato as the scion. These results suggest that signals from the scion (shoot) control the inorganic ions and plant hormones transported from the rootstock (root).
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Affiliation(s)
- Kohei Kawaguchi
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Makoto Nakaune
- Saitama Agricultural Technology Research Center, Sugahiro, Kumagaya 360-0102, Japan
| | - Jian Feng Ma
- Research Institute for Bioresources, Okayama University, Chuo, Kurashiki 710-0046, Japan
| | - Mikiko Kojima
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan
| | - Yumiko Takebayashi
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan
| | - Hitoshi Sakakibara
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan
| | - Shungo Otagaki
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Shogo Matsumoto
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Katsuhiro Shiratake
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
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28
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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.
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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.
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29
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Gao F, Li J, Zhang J, Li N, Tang C, Bakpa EP, Xie J. Genome-wide identification of the ZIP gene family in lettuce (Lactuca sativa L.) and expression analysis under different element stress. PLoS One 2022; 17:e0274319. [PMID: 36170262 PMCID: PMC9518877 DOI: 10.1371/journal.pone.0274319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/26/2022] [Indexed: 11/19/2022] Open
Abstract
The ZIP protein (ZRT, the IRT-like protein) is an important metal transporter that transports Zn, Fe, and other divalent metal ions in plants. In this study, we identified 20 ZIP genes in lettuce (Lactuca sativa L.). We used bioinformatics methods and renamed them according to their E value in hmmsearch. We also analyzed their gene structure, chromosomal location, constructed a phylogenetic tree, conserved motifs, performed synonymous analysis and responses to abiotic stresses. The results show that these LsZIP genes have 3-11 exons and were distributed unequally on 8 of the 9 chromosomes in lettuce. Based on phylogenetic analyses, the LsZIP gene family can be divided into three subfamilies, and the LsZIP genes within the same subfamily shared similar gene structure. The LsZIP genes contain 12 Motifs, of which Motif1 to Motif8 are widely distributed in group Ⅰ. Furthermore, the LsZIP gene contains numerous hormones and anti-stress response elements. Real-time quantitative PCR demonstrated that most LsZIP genes is up-regulated under the elemental stress in this experiment, indicating that they are positively regulated. But different elemental stressors can induce the expression of LsZIP gene to varying degrees. The LsZIP genes also change in response to different elemental stresses. The present study serves as a basic foundation for future functional studies on the lettuce ZIP family.
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Affiliation(s)
- Feng Gao
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jing Li
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jing Zhang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Nenghui Li
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Chaonan Tang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | | | - Jianming Xie
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
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30
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Schulten A, Pietzenuk B, Quintana J, Scholle M, Feil R, Krause M, Romera-Branchat M, Wahl V, Severing E, Coupland G, Krämer U. Energy status-promoted growth and development of Arabidopsis require copper deficiency response transcriptional regulator SPL7. THE PLANT CELL 2022; 34:3873-3898. [PMID: 35866980 PMCID: PMC9516184 DOI: 10.1093/plcell/koac215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 07/19/2022] [Indexed: 06/01/2023]
Abstract
Copper (Cu) is a cofactor of around 300 Arabidopsis proteins, including photosynthetic and mitochondrial electron transfer chain enzymes critical for adenosine triphosphate (ATP) production and carbon fixation. Plant acclimation to Cu deficiency requires the transcription factor SQUAMOSA PROMOTER-BINDING PROTEIN-LIKE7 (SPL7). We report that in the wild type (WT) and in the spl7-1 mutant, respiratory electron flux via Cu-dependent cytochrome c oxidase is unaffected under both normal and low-Cu cultivation conditions. Supplementing Cu-deficient medium with exogenous sugar stimulated growth of the WT, but not of spl7 mutants. Instead, these mutants accumulated carbohydrates, including the signaling sugar trehalose 6-phosphate, as well as ATP and NADH, even under normal Cu supply and without sugar supplementation. Delayed spl7-1 development was in agreement with its attenuated sugar responsiveness. Functional TARGET OF RAPAMYCIN and SNF1-RELATED KINASE1 signaling in spl7-1 argued against fundamental defects in these energy-signaling hubs. Sequencing of chromatin immunoprecipitates combined with transcriptome profiling identified direct targets of SPL7-mediated positive regulation, including Fe SUPEROXIDE DISMUTASE1 (FSD1), COPPER-DEFICIENCY-INDUCED TRANSCRIPTION FACTOR1 (CITF1), and the uncharacterized bHLH23 (CITF2), as well as an enriched upstream GTACTRC motif. In summary, transducing energy availability into growth and reproductive development requires the function of SPL7. Our results could help increase crop yields, especially on Cu-deficient soils.
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Affiliation(s)
| | - Björn Pietzenuk
- Department of Molecular Genetics and Physiology of Plants, Ruhr University Bochum, 44801 Bochum, Germany
| | | | - Marleen Scholle
- Department of Molecular Genetics and Physiology of Plants, Ruhr University Bochum, 44801 Bochum, Germany
| | - Regina Feil
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Marcus Krause
- Department of Molecular Genetics and Physiology of Plants, Ruhr University Bochum, 44801 Bochum, Germany
| | | | - Vanessa Wahl
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Edouard Severing
- Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
| | - George Coupland
- Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
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Jha R, Yadav HK, Raiya R, Singh RK, Jha UC, Sathee L, Singh P, Thudi M, Singh A, Chaturvedi SK, Tripathi S. Integrated breeding approaches to enhance the nutritional quality of food legumes. FRONTIERS IN PLANT SCIENCE 2022; 13:984700. [PMID: 36161025 PMCID: PMC9490089 DOI: 10.3389/fpls.2022.984700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 07/26/2022] [Indexed: 05/31/2023]
Abstract
Global food security, both in terms of quantity and quality remains as a challenge with the increasing population. In parallel, micronutrient deficiency in the human diet leads to malnutrition and several health-related problems collectively known as "hidden hunger" more prominent in developing countries around the globe. Biofortification is a potential tool to fortify grain legumes with micronutrients to mitigate the food and nutritional security of the ever-increasing population. Anti-nutritional factors like phytates, raffinose (RFO's), oxalates, tannin, etc. have adverse effects on human health upon consumption. Reduction of the anti-nutritional factors or preventing their accumulation offers opportunity for enhancing the intake of legumes in diet besides increasing the bioavailability of micronutrients. Integrated breeding methods are routinely being used to exploit the available genetic variability for micronutrients through modern "omic" technologies such as genomics, transcriptomics, ionomics, and metabolomics for developing biofortified grain legumes. Molecular mechanism of Fe/Zn uptake, phytate, and raffinose family oligosaccharides (RFOs) biosynthesis pathways have been elucidated. Transgenic, microRNAs and genome editing tools hold great promise for designing nutrient-dense and anti-nutrient-free grain legumes. In this review, we present the recent efforts toward manipulation of genes/QTLs regulating biofortification and Anti-nutrient accumulation in legumes using genetics-, genomics-, microRNA-, and genome editing-based approaches. We also discuss the success stories in legumes enrichment and recent advances in development of low Anti-nutrient lines. We hope that these emerging tools and techniques will expedite the efforts to develop micronutrient dense legume crop varieties devoid of Anti-nutritional factors that will serve to address the challenges like malnutrition and hidden hunger.
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Affiliation(s)
- Rintu Jha
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Hemant Kumar Yadav
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Rahul Raiya
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Rajesh Kumar Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Uday Chand Jha
- Crop Improvement Division, ICAR-Indian Institute of Pulses Research, Kanpur, Uttar Pradesh, India
| | - Lekshmy Sathee
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Prashant Singh
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Mahendar Thudi
- Department of Agricultural Biotechnology and Molecular Biology, Dr. Rajendra Prasad Central Agricultural University, Samastipur, India
- Shandong Academy of Agricultural Sciences, Jinan, China
- Center for Crop Health, University of Southern Queensland, Toowmba, QLD, Australia
| | - Anshuman Singh
- College of Agriculture, Rani Lakshmi Bai Central Agricultural University, Jhansi, Uttar Pradesh, India
| | - Sushil Kumar Chaturvedi
- College of Agriculture, Rani Lakshmi Bai Central Agricultural University, Jhansi, Uttar Pradesh, India
| | - Shailesh Tripathi
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
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Natural Molecular Mechanisms of Plant Hyperaccumulation and Hypertolerance towards Heavy Metals. Int J Mol Sci 2022; 23:ijms23169335. [PMID: 36012598 PMCID: PMC9409101 DOI: 10.3390/ijms23169335] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/11/2022] [Accepted: 08/17/2022] [Indexed: 11/17/2022] Open
Abstract
The main mechanism of plant tolerance is the avoidance of metal uptake, whereas the main mechanism of hyperaccumulation is the uptake and neutralization of metals through specific plant processes. These include the formation of symbioses with rhizosphere microorganisms, the secretion of substances into the soil and metal immobilization, cell wall modification, changes in the expression of genes encoding heavy metal transporters, heavy metal ion chelation, and sequestration, and regenerative heat-shock protein production. The aim of this work was to review the natural plant mechanisms that contribute towards increased heavy metal accumulation and tolerance, as well as a review of the hyperaccumulator phytoremediation capacity. Phytoremediation is a strategy for purifying heavy-metal-contaminated soils using higher plants species as hyperaccumulators.
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Wang Y, Salt DE, Koornneef M, Aarts MGM. Construction and analysis of a Noccaea caerulescens TILLING population. BMC PLANT BIOLOGY 2022; 22:360. [PMID: 35869423 PMCID: PMC9308233 DOI: 10.1186/s12870-022-03739-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: 12/07/2021] [Accepted: 06/27/2022] [Indexed: 05/11/2023]
Abstract
BACKGROUND Metals such as Zn or Cd are toxic to plant and humans when they are exposed in high quantities through contaminated soil or food. Noccaea caerulescens, an extraordinary Zn/Cd/Ni hyperaccumulating species, is used as a model plant for metal hyperaccumulation and phytoremediation studies. Current reverse genetic techniques to generate mutants based on transgenesis is cumbersome due to the low transformation efficiency of this species. We aimed to establish a mutant library for functional genomics by a non-transgenic approach, to identify mutants with an altered mineral profiling, and to screen for mutations in bZIP19, a regulator of Zn homeostasis in N. caerulescens. RESULTS To generate the N. caerulescens mutant library, 3000 and 5000 seeds from two sister plants of a single-seed recurrent inbred descendant of the southern French accession Saint-Félix-de-Pallières (SF) were mutagenized respectively by 0.3 or 0.4% ethyl methane sulfonate (EMS). Two subpopulations of 5000 and 7000 M2 plants were obtained after 0.3 or 0.4% EMS treatment. The 0.4% EMS treatment population had a higher mutant frequency and was used for TILLING. A High Resolution Melting curve analysis (HRM) mutation screening platform was optimized and successfully applied to detect mutations for NcbZIP19, encoding a transcription factor controlling Zn homeostasis. Of four identified point mutations in NcbZIP19, two caused non-synonymous substitutions, however, these two mutations did not alter the ionome profile compared to the wild type. Forward screening of the 0.4% EMS treatment population by mineral concentration analysis (ionomics) in leaf material of each M2 plant revealed putative mutants affected in the concentration of one or more of the 20 trace elements tested. Several of the low-Zn mutants identified in the ionomic screen did not give progeny, illustrating the importance of Zn for the species. The mutant frequency of the population was evaluated based on an average of 2.3 knockout mutants per tested monogenic locus. CONCLUSIONS The 0.4% EMS treatment population is effectively mutagenized suitable for forward mutant screens and TILLING. Difficulties in seed production in low Zn mutants, obtained by both forward and reverse genetic approach, hampered further analysis of the nature of the low Zn phenotypes.
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Affiliation(s)
- Yanli Wang
- Laboratory of Genetics, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
- College of Horticulture Science & Technology, Hebei Normal University of Science & Technology, No 360, West of HeBei street, Qinhuang Dao, China
| | - David E Salt
- Future Food Beacon of Excellence & School of Biosciences, University of Nottingham, Sutton Bonington, LE12 5RD, UK
| | - Maarten Koornneef
- Laboratory of Genetics, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Mark G M Aarts
- Laboratory of Genetics, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands.
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Belgaroui N, El Ifa W, Hanin M. Phytic acid contributes to the phosphate-zinc signaling crosstalk in Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 183:1-8. [PMID: 35526500 DOI: 10.1016/j.plaphy.2022.04.029] [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: 02/18/2022] [Revised: 04/18/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
Inorganic phosphate (Pi) and zinc (Zn) are two essential nutrients for plant growth. Crosstalk between these two elements to control their uptake and homeostasis in plants has been previously demonstrated. However, the signaling molecule(s) required for the mechanisms underlying this interaction remain unknown. Phytic acid (PA), the main P storage form in plants, serves also as a signalling molecule in processes controlling plant growth and development as well as responses to different stimuli. In this study, we investigated the involvement of PA in the control of Zn-Pi homeostasis interaction in Arabidopsis. For this purpose, we used two classes of low phytic acid (lpa) lines: the inositol polyphosphate kinase 1 gene (ipk1-1) mutant and two transgenic lines expressing the bacterial phytase PHY-US417. The transgenic lines exhibit an enhanced root growth under Zn-deficiency compared to wild type (WT) and ipk1-1. In addition, higher Pi and Zn contents were detected in the lpa lines under standard and also deficient conditions (-Pi and -Zn). However, the activation of shoot Pi accumulation which occurs in WT in response to Zn depletion was not observed in the lpa lines. Finally, we noticed that the changes in Pi and Zn accumulation seem to be correlated with a tight regulation of Pi and Zn transporters in the lpa lines. All these findings underline a regulatory role of PA in the control of the Zn-Pi crosstalk but also open the door to possible involvement of additional unknown signaling molecules in this process.
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Affiliation(s)
- Nibras Belgaroui
- Plant Physiology and Functional Genomics Research Unit, Institute of Biotechnology. University of Sfax, BP "1175", 3038, Sfax, Tunisia
| | - Wided El Ifa
- Plant Physiology and Functional Genomics Research Unit, Institute of Biotechnology. University of Sfax, BP "1175", 3038, Sfax, Tunisia
| | - Moez Hanin
- Plant Physiology and Functional Genomics Research Unit, Institute of Biotechnology. University of Sfax, BP "1175", 3038, Sfax, Tunisia.
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Liao F, Lilay GH, Castro PH, Azevedo H, Assunção AGL. Regulation of the Zinc Deficiency Response in the Legume Model Medicago truncatula. FRONTIERS IN PLANT SCIENCE 2022; 13:916168. [PMID: 35845702 PMCID: PMC9279927 DOI: 10.3389/fpls.2022.916168] [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: 04/08/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
The zinc deficiency response in Arabidopsis thaliana is regulated by F-group basic region leucine-zipper (F-bZIP) transcription factors, and there is evidence of evolutionary conservation of this regulatory network in land plants. Fundamental knowledge on the zinc homeostasis regulation in crop species will contribute to improving their zinc nutritional value. Legumes are protein-rich crops, used worldwide as part of traditional diets and as animal forage, being therefore a good target for micronutrient biofortification. Here, we identified F-bZIP transcription factors in representative legume species and functionally characterized the two F-bZIPs from Medicago truncatula. Results indicate that MtFbZIP1 is the functional homolog of A. thaliana bZIP19 and bZIP23, while MtFbZIP2 does not play a role in the zinc deficiency response. Additionally, analysis of M. truncatula genes from the Zrt/Irt-like protein (ZIP) family of zinc transporters or encoding nicotianamine synthase enzymes that produce the zinc ligand nicotianamine, support the conservation of the F-bZIP-regulated zinc deficiency response in M. truncatula. Phylogenetic analysis of F-bZIP homologs enriched in legume species reinforces the branching into two groups, with MtFbZIP1 and MtFbZIP2 mapping in Groups 1 and 2, respectively. This phylogeny combined with the functional characterization of MtFbZIPs supports the suggested conservation of the zinc deficiency response associated with Group 1 F-bZIPs, and the more variable evolutionary paths associated with Group 2. Overall, we provide novel insight on the mechanisms of response to zinc deficiency in M. truncatula, which contributes to developing strategies for improving zinc content in legume crops.
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Affiliation(s)
- Feixue Liao
- Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Grmay Hailu Lilay
- Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Pedro Humberto Castro
- CIBIO-InBIO Research Centre in Biodiversity and Genetic Resources, University of Porto, Vairão, Portugal
- BIOPOLIS Biodiversity and Land Planning, Vairão, Portugal
| | - Herlander Azevedo
- CIBIO-InBIO Research Centre in Biodiversity and Genetic Resources, University of Porto, Vairão, Portugal
- BIOPOLIS Biodiversity and Land Planning, Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Ana G. L. Assunção
- Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg, Denmark
- CIBIO-InBIO Research Centre in Biodiversity and Genetic Resources, University of Porto, Vairão, Portugal
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36
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Lay-Pruitt KS, Wang W, Prom-U-Thai C, Pandey A, Zheng L, Rouached H. A tale of two players: the role of phosphate in iron and zinc homeostatic interactions. PLANTA 2022; 256:23. [PMID: 35767117 DOI: 10.1007/s00425-022-03922-2] [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: 07/30/2021] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
This minireview details the impact of iron-phosphate and zinc-phosphate interactions in plants and provides perspectives for further areas of research regarding nutrient homeostasis. Iron (Fe) and zinc (Zn) are among the most important micronutrients for plant growth and have numerous implications for human health and agriculture. While plants have developed efficient uptake and transport mechanisms for Fe and Zn, emerging research has shown that the availability of other nutrients in the environment influences the homeostasis of Fe and Zn within plants. In this minireview, we present the current knowledge regarding homeostatic interactions of Fe and Zn with the macronutrient phosphorous (P) and the resulting physiological responses to combined deficiencies of these nutrients. Fe and P interactions have been shown to influence root development, photosynthesis, and biological processes aiding Fe uptake. Zn and P interactions also influence root growth, and coordination of Zn-dependent transcriptional regulation contributes to phosphate (Pi) transport in the plant. Understanding homeostatic interactions among these different nutrients is of critical importance to obtain a more complete understanding of plant nutrition in complex soil environments.
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Affiliation(s)
- Katerina S Lay-Pruitt
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, USA
- The Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
| | - Wujian Wang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chanakan Prom-U-Thai
- Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, 50200, Chiang Mai, Thailand
| | - Ajay Pandey
- Department of Biotechnology, National Agri-Food Biotechnology Institute, Sector 81, Knowledge City, Mohali, S.A.S. Nagar, Punjab, 140306, India
| | - Luqing Zheng
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hatem Rouached
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, USA.
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
- The Plant Resilience Institute, Michigan State University, East Lansing, MI, USA.
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The Rice Serine/Arginine Splicing Factor RS33 Regulates Pre-mRNA Splicing during Abiotic Stress Responses. Cells 2022; 11:cells11111796. [PMID: 35681491 PMCID: PMC9180459 DOI: 10.3390/cells11111796] [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: 03/18/2022] [Revised: 04/27/2022] [Accepted: 05/07/2022] [Indexed: 02/06/2023] Open
Abstract
Abiotic stresses profoundly affect plant growth and development and limit crop productivity. Pre-mRNA splicing is a major form of gene regulation that helps plants cope with various stresses. Serine/arginine (SR)-rich splicing factors play a key role in pre-mRNA splicing to regulate different biological processes under stress conditions. Alternative splicing (AS) of SR transcripts and other transcripts of stress-responsive genes generates multiple splice isoforms that contribute to protein diversity, modulate gene expression, and affect plant stress tolerance. Here, we investigated the function of the plant-specific SR protein RS33 in regulating pre-mRNA splicing and abiotic stress responses in rice. The loss-of-function mutant rs33 showed increased sensitivity to salt and low-temperature stresses. Genome-wide analyses of gene expression and splicing in wild-type and rs33 seedlings subjected to these stresses identified multiple splice isoforms of stress-responsive genes whose AS are regulated by RS33. The number of RS33-regulated genes was much higher under low-temperature stress than under salt stress. Our results suggest that the plant-specific splicing factor RS33 plays a crucial role during plant responses to abiotic stresses.
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Amini S, Arsova B, Hanikenne M. The molecular basis of zinc homeostasis in cereals. PLANT, CELL & ENVIRONMENT 2022; 45:1339-1361. [PMID: 35037265 DOI: 10.1111/pce.14257] [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: 07/16/2021] [Revised: 11/12/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Plants require zinc (Zn) as an essential cofactor for diverse molecular, cellular and physiological functions. Zn is crucial for crop yield, but is one of the most limiting micronutrients in soils. Grasses like rice, wheat, maize and barley are crucial sources of food and nutrients for humans. Zn deficiency in these species therefore not only reduces annual yield but also directly results in Zn malnutrition of more than two billion people in the world. There has been good progress in understanding Zn homeostasis and Zn deficiency mechanisms in plants. However, our current knowledge of monocots, including grasses, remains insufficient. In this review, we provide a summary of our knowledge of molecular Zn homeostasis mechanisms in monocots, with a focus on important cereal crops. We additionally highlight divergences in Zn homeostasis of monocots and the dicot model Arabidopsis thaliana, as well as important gaps in our knowledge that need to be addressed in future research on Zn homeostasis in cereal monocots.
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Affiliation(s)
- Sahand Amini
- InBioS-PhytoSystems, Translational Plant Biology, University of Liège, Liège, Belgium
| | - Borjana Arsova
- Root Dynamics Group, IBG-2 - Plant Sciences, Institut für Bio- und Geowissenschaften (IBG), Forschungszentrum, Jülich, Germany
| | - Marc Hanikenne
- InBioS-PhytoSystems, Translational Plant Biology, University of Liège, Liège, Belgium
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Lu Z, Qiu W, Jin K, Yu M, Han X, He X, Wu L, Wu C, Zhuo R. Identification and Analysis of bZIP Family Genes in Sedum plumbizincicola and Their Potential Roles in Response to Cadmium Stress. FRONTIERS IN PLANT SCIENCE 2022; 13:859386. [PMID: 35574076 PMCID: PMC9094143 DOI: 10.3389/fpls.2022.859386] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/29/2022] [Indexed: 05/23/2023]
Abstract
Sedum plumbizincicola (Crassulaceae), a cadmium (Cd)/zinc (Zn)/lead (Pb) hyperaccumulator native to Southeast China, is potentially useful for the phytoremediation of heavy metal-contaminated soil. Basic leucine zipper (bZIP) transcription factors play vital roles in plant growth, development, and abiotic stress responses. However, there has been minimal research on the effects of Cd stress on the bZIP gene family in S. plumbizincicola. In this study, 92 SpbZIP genes were identified in the S. plumbizincicola genome and then classified into 12 subgroups according to their similarity to bZIP genes in Arabidopsis. Gene structure and conserved motif analyses showed that SpbZIP genes within the same subgroup shared similar intron-exon structures and motif compositions. In total, eight pairs of segmentally duplicated SpbZIP genes were identified, but there were no tandemly duplicated SpbZIP genes. Additionally, the duplicated SpbZIP genes were mainly under purifying selection pressure. Hormone-responsive, abiotic and biotic stress-responsive, and plant development-related cis-acting elements were detected in the SpbZIP promoter sequences. Expression profiles derived from RNA-seq and quantitative real-time PCR analyses indicated that the expression levels of most SpbZIP genes were upregulated under Cd stress conditions. Furthermore, a gene co-expression network analysis revealed that most edge genes regulated by hub genes were related to metal transport, responses to stimuli, and transcriptional regulation. Because its expression was significantly upregulated by Cd stress, the hub gene SpbZIP60 was selected for a functional characterization to elucidate its role in the root response to Cd stress. In a transient gene expression analysis involving Nicotiana benthamiana leaves, SpbZIP60 was localized in the nucleus. The overexpression of SpbZIP60 enhanced the Cd tolerance of transgenic Arabidopsis plants by inhibiting ROS accumulation, protecting the photosynthetic apparatus, and decreasing the Cd content. These findings may provide insights into the potential roles of the bZIP family genes during the S. plumbizincicola response to Cd stress.
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Affiliation(s)
- Zhuchou Lu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- Faculty of Forestry, Nanjing Forestry University, Nanjing, China
| | - Wenmin Qiu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Kangming Jin
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Miao Yu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Xiaojiao Han
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Xiaoyang He
- Agricultural Technology Extension Centre of Dongtai, Yancheng, China
| | - Longhua Wu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Chao Wu
- Institute of Horticulture, Zhejiang Academy of Agricultural Science, Hangzhou, China
| | - Renyin Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
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Ceasar SA, Maharajan T, Hillary VE, Ajeesh Krishna TP. Insights to improve the plant nutrient transport by CRISPR/Cas system. Biotechnol Adv 2022; 59:107963. [PMID: 35452778 DOI: 10.1016/j.biotechadv.2022.107963] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/09/2022] [Accepted: 04/14/2022] [Indexed: 02/06/2023]
Abstract
We need to improve food production to feed the ever growing world population especially in a changing climate. Nutrient deficiency in soils is one of the primary bottlenecks affecting the crop production both in developed and developing countries. Farmers are forced to apply synthetic fertilizers to improve the crop production to meet the demand. Understanding the mechanism of nutrient transport is helpful to improve the nutrient-use efficiency of crops and promote the sustainable agriculture. Many transporters involved in the acquisition, export and redistribution of nutrients in plants are characterized. In these studies, heterologous systems like yeast and Xenopus were most frequently used to study the transport function of plant nutrient transporters. CRIPSR/Cas system introduced recently has taken central stage for efficient genome editing in diverse organisms including plants. In this review, we discuss the key nutrient transporters involved in the acquisition and redistribution of nutrients from soil. We draw insights on the possible application CRISPR/Cas system for improving the nutrient transport in plants by engineering key residues of nutrient transporters, transcriptional regulation of nutrient transport signals, engineering motifs in promoters and transcription factors. CRISPR-based engineering of plant nutrient transport not only helps to study the process in native plants with conserved regulatory system but also aid to develop non-transgenic crops with better nutrient use-efficiency. This will reduce the application of synthetic fertilizers and promote the sustainable agriculture strengthening the food and nutrient security.
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Affiliation(s)
| | | | - V Edwin Hillary
- Department of Biosciences, Rajagiri College of Social Sciences, Kochi 683104, Kerala, India
| | - T P Ajeesh Krishna
- Department of Biosciences, Rajagiri College of Social Sciences, Kochi 683104, Kerala, India
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Abstract
Nutrients are scarce and valuable resources, so plants developed sophisticated mechanisms to optimize nutrient use efficiency. A crucial part of this is monitoring external and internal nutrient levels to adjust processes such as uptake, redistribution, and cellular compartmentation. Measurement of nutrient levels is carried out by primary sensors that typically involve either transceptors or transcription factors. Primary sensors are only now starting to be identified in plants for some nutrients. In particular, for nitrate, there is detailed insight concerning how the external nitrate status is sensed by members of the nitrate transporter 1 (NRT1) family. Potential sensors for other macronutrients such as potassium and sodium have also been identified recently, whereas for micronutrients such as zinc and iron, transcription factor type sensors have been reported. This review provides an overview that interprets and evaluates our current understanding of how plants sense macro and micronutrients in the rhizosphere and root symplast.
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Kolbert Z, Cuypers A, Verbruggen N. Essential trace metals: micronutrients with large impact. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1685-1687. [PMID: 35288752 DOI: 10.1093/jxb/erac025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Zsuzsanna Kolbert
- Department of Plant Biology, University of Szeged, Szeged H6726, Hungary
| | - Ann Cuypers
- Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Nathalie Verbruggen
- Laboratory of Plant Physiology and Molecular Genetics, Université Libre de Bruxelles, 1050 Brussels, Belgium
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43
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Huang S, Yamaji N, Feng Ma J. Zinc transport in rice: how to balance optimal plant requirements and human nutrition. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1800-1808. [PMID: 34727182 DOI: 10.1093/jxb/erab478] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/27/2021] [Indexed: 05/15/2023]
Abstract
Zinc (Zn) is an essential micronutrient for both plants and animals, while its deficiency in crops and humans is a global problem that affects both crop productivity and human health. Since plants and humans differ in their Zn requirements, it is crucial to balance plant nutrition and human nutrition for Zn. In this review, we focus on the transport system of Zn from soil to grain in rice (Oryza sativa), which is a major dietary source of Zn for people subsiding on rice-based diets. We describe transporters belonging to the different families that are involved in the uptake, vacuolar sequestration, root-to-shoot translocation, and distribution of Zn, and discuss their mechanisms of regulation. We give examples for enhancing Zn accumulation and bioavailability in rice grains through the manipulation of genes that are highly expressed in the nodes, where Zn is deposited at high concentrations. Finally, we provide our perspectives on breeding rice cultivars with both increased tolerance to Zn-deficiency stress and high Zn density in the grains.
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Affiliation(s)
- Sheng Huang
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, Japan
| | - Naoki Yamaji
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, Japan
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44
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Lešková A, Javot H, Giehl RFH. Metal crossroads in plants: modulation of nutrient acquisition and root development by essential trace metals. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1751-1765. [PMID: 34791130 DOI: 10.1093/jxb/erab483] [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: 08/28/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
The metals iron, zinc, manganese, copper, molybdenum, and nickel are essential for the growth and development of virtually all plant species. Although these elements are required at relatively low amounts, natural factors and anthropogenic activities can significantly affect their availability in soils, inducing deficiencies or toxicities in plants. Because essential trace metals can shape root systems and interfere with the uptake and signaling mechanisms of other nutrients, the non-optimal availability of any of them can induce multi-element changes in plants. Interference by one essential trace metal with the acquisition of another metal or a non-metal nutrient can occur prior to or during root uptake. Essential trace metals can also indirectly impact the plant's ability to capture soil nutrients by targeting distinct root developmental programs and hormone-related processes, consequently inducing largely metal-specific changes in root systems. The presence of metal binding domains in many regulatory proteins also enables essential trace metals to coordinate nutrient uptake by acting at high levels in hierarchical signaling cascades. Here, we summarize the known molecular and cellular mechanisms underlying trace metal-dependent modulation of nutrient acquisition and root development, and highlight the importance of considering multi-element interactions to breed crops better adapted to non-optimal trace metal availabilities.
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Affiliation(s)
- Alexandra Lešková
- Aix Marseille Univ, CEA, CNRS, Bioscience and Biotechnology Institut of Aix-Marseille (BIAM), SAVE, Saint Paul-Lez-Durance, F-13108, France
| | - Hélène Javot
- Aix Marseille Univ, CEA, CNRS, Bioscience and Biotechnology Institut of Aix-Marseille (BIAM), SAVE, Saint Paul-Lez-Durance, F-13108, France
| | - Ricardo F H Giehl
- Department of Physiology & Cell Biology, Leibniz-Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, 06466 Seeland, Germany
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45
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Thiébaut N, Hanikenne M. Zinc deficiency responses: bridging the gap between Arabidopsis and dicotyledonous crops. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1699-1716. [PMID: 34791143 DOI: 10.1093/jxb/erab491] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
Zinc (Zn) deficiency is a widespread phenomenon in agricultural soils worldwide and has a major impact on crop yield and quality, and hence on human nutrition and health. Although dicotyledonous crops represent >30% of human plant-based nutrition, relatively few efforts have been dedicated to the investigation of Zn deficiency response mechanisms in dicotyledonous, in contrast to monocotyledonous crops, such as rice or barley. Here, we describe the Zn requirement and impact of Zn deficiency in several economically important dicotyledonous crops, Phaseolus vulgaris, Glycine max, Brassica oleracea, and Solanum lycopersicum. We briefly review our current knowledge of the Zn deficiency response in Arabidopsis and outline how this knowledge is translated in dicotyledonous crops. We highlight commonalities and differences between dicotyledonous species (and with monocotyledonous species) regarding the function and regulation of Zn transporters and chelators, as well as the Zn-sensing mechanisms and the role of hormones in the Zn deficiency response. Moreover, we show how the Zn homeostatic network intimately interacts with other nutrients, such as iron or phosphate. Finally, we outline how variation in Zn deficiency tolerance and Zn use efficiency among cultivars of dicotyledonous species can be leveraged for the design of Zn biofortification strategies.
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Affiliation(s)
- Noémie Thiébaut
- InBioS - PhytoSystems, Translational Plant Biology, University of Liège, 4000 Liège, Belgium
| | - Marc Hanikenne
- InBioS - PhytoSystems, Translational Plant Biology, University of Liège, 4000 Liège, Belgium
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46
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Assunção AGL, Cakmak I, Clemens S, González-Guerrero M, Nawrocki A, Thomine S. Micronutrient homeostasis in plants for more sustainable agriculture and healthier human nutrition. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1789-1799. [PMID: 35134869 PMCID: PMC8921004 DOI: 10.1093/jxb/erac014] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 01/28/2022] [Indexed: 05/03/2023]
Abstract
The provision of sustainable, sufficient, and nutritious food to the growing population is a major challenge for agriculture and the plant research community. In this respect, the mineral micronutrient content of food crops deserves particular attention. Micronutrient deficiencies in cultivated soils and plants are a global problem that adversely affects crop production and plant nutritional value, as well as human health and well-being. In this review, we call for awareness of the importance and relevance of micronutrients in crop production and quality. We stress the need for better micronutrient nutrition in human populations, not only in developing but also in developed nations, and describe strategies to identify and characterize new varieties with high micronutrient content. Furthermore, we explain how adequate nutrition of plants with micronutrients impacts metabolic functions and the capacity of plants to express tolerance mechanisms against abiotic and biotic constraints. Finally, we provide a brief overview and a critical discussion on current knowledge, future challenges, and specific technological needs for research on plant micronutrient homeostasis. Research in this area is expected to foster the sustainable development of nutritious and healthy food crops for human consumption.
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Affiliation(s)
- Ana G L Assunção
- Department of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg, Denmark
- CIBIO-InBIO, Research Centre in Biodiversity and Genetic Resources, University of Porto, 4485-661 Vairão, Portugal
| | - Ismail Cakmak
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956 Istanbul, Turkey
| | - Stephan Clemens
- Department of Plant Physiology and Faculty of Life Sciences: Food, Nutrition and Health, University of Bayreuth, 95440 Bayreuth, Germany
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón (Madrid), Spain
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47
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Function of hydroxycinnamoyl transferases for the biosynthesis of phenolamides in rice resistance to Magnaporthe oryzae. J Genet Genomics 2022; 49:776-786. [DOI: 10.1016/j.jgg.2022.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/04/2022] [Accepted: 02/06/2022] [Indexed: 01/05/2023]
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48
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Escudero V, Ferreira Sánchez D, Abreu I, Sopeña-Torres S, Makarovsky-Saavedra N, Bernal M, Krämer U, Grolimund D, González-Guerrero M, Jordá L. Arabidopsis thaliana Zn2+-efflux ATPases HMA2 and HMA4 are required for resistance to the necrotrophic fungus Plectosphaerella cucumerina BMM. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:339-350. [PMID: 34463334 DOI: 10.1093/jxb/erab400] [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: 02/08/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Zinc is an essential nutrient at low concentrations, but toxic at slightly higher ones. It has been proposed that hyperaccumulator plants may use the excess zinc to fend off pathogens and herbivores. However, there is little evidence of a similar response in other plants. Here we show that Arabidopsis thaliana leaves inoculated with the necrotrophic fungus Plectosphaerella cucumerina BMM (PcBMM) accumulate zinc and manganese at the infection site. Zinc accumulation did not occur in a double mutant in the zinc transporters HEAVY METAL ATPASE2 and HEAVY METAL ATPASE4 (HMA2 and HMA4), which has reduced zinc translocation from roots to shoots. Consistent with a role in plant immunity, expression of HMA2 and HMA4 was up-regulated upon PcBMM inoculation, and hma2hma4 mutants were more susceptible to PcBMM infection. This phenotype was rescued upon zinc supplementation. The increased susceptibility to PcBMM infection was not due to the diminished expression of genes involved in the salicylic acid, ethylene, or jasmonate pathways since they were constitutively up-regulated in hma2hma4 plants. Our data indicate a role of zinc in resistance to PcBMM in plants containing ordinary levels of zinc. This layer of immunity runs in parallel to the already characterized defence pathways, and its removal has a direct effect on resistance to pathogens.
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Affiliation(s)
- Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
| | - Darío Ferreira Sánchez
- Paul Scherrer Institute, Swiss Light Source, microXAS Beamline Project, CH-5232 Villigen, Switzerland
| | - Isidro Abreu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
| | - Sara Sopeña-Torres
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
| | - Natalia Makarovsky-Saavedra
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
| | - María Bernal
- Department of Molecular Genetics and Physiology of Plants. Ruhr University Bochum. Universitätstrasse, Bochum, Germany
| | - Ute Krämer
- Department of Molecular Genetics and Physiology of Plants. Ruhr University Bochum. Universitätstrasse, Bochum, Germany
| | - Daniel Grolimund
- Paul Scherrer Institute, Swiss Light Source, microXAS Beamline Project, CH-5232 Villigen, Switzerland
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid. 28040 Madrid, Spain
| | - Lucía Jordá
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid. 28040 Madrid, Spain
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49
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Stanton C, Sanders D, Krämer U, Podar D. Zinc in plants: Integrating homeostasis and biofortification. MOLECULAR PLANT 2022; 15:65-85. [PMID: 34952215 DOI: 10.1016/j.molp.2021.12.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/07/2021] [Accepted: 12/21/2021] [Indexed: 05/24/2023]
Abstract
Zinc plays many essential roles in life. As a strong Lewis acid that lacks redox activity under environmental and cellular conditions, the Zn2+ cation is central in determining protein structure and catalytic function of nearly 10% of most eukaryotic proteomes. While specific functions of zinc have been elucidated at a molecular level in a number of plant proteins, wider issues abound with respect to the acquisition and distribution of zinc by plants. An important challenge is to understand how plants balance between Zn supply in soil and their own nutritional requirement for zinc, particularly where edaphic factors lead to a lack of bioavailable zinc or, conversely, an excess of zinc that bears a major risk of phytotoxicity. Plants are the ultimate source of zinc in the human diet, and human Zn deficiency accounts for over 400 000 deaths annually. Here, we review the current understanding of zinc homeostasis in plants from the molecular and physiological perspectives. We provide an overview of approaches pursued so far in Zn biofortification of crops. Finally, we outline a "push-pull" model of zinc nutrition in plants as a simplifying concept. In summary, this review discusses avenues that can potentially deliver wider benefits for both plant and human Zn nutrition.
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Affiliation(s)
| | - Dale Sanders
- John Innes Centre, Colney Lane, Norwich, NR4 7UH, UK
| | - Ute Krämer
- Molecular Genetics and Physiology of Plants, Ruhr University Bochum, 44801 Bochum, Germany.
| | - Dorina Podar
- Department of Molecular Biology and Biotechnology and Centre for Systems Biology, Biodiversity and Bioresources, Babes-Bolyai University, 400084 Cluj-Napoca, Romania.
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50
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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: 3] [Impact Index Per Article: 1.5] [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.
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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
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