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Ji E, Hu S, Lu Q, Zhang M, Jiang M. Hydrogen peroxide positively regulates ABA signaling via oxidative modification of the C2H2-type zinc finger protein ZFP36 in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 213:108844. [PMID: 38885566 DOI: 10.1016/j.plaphy.2024.108844] [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: 01/18/2024] [Revised: 05/24/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
The rice zinc finger protein ZFP36 serves as a pivotal regulator of the hydrogen peroxide (H2O2) signaling pathway in response to abscisic acid (ABA). Its role is crucial for integrating H2O2 signals with the plant defense mechanisms against water deficit and oxidative stress. However, it remains unclear whether ZFP36 directly modulates ABA-induced H2O2 signaling. This study explored the effects of oxidative post-translational modifications (OxiPTMs) on ZFP36 in rice, with an emphasis on the H2O2-induced oxidation through its cysteine (Cys) residues. We found that ZFP36 undergoes oxidative modification as a target of H2O2 in the presence of ABA, specifically at Cys32. Employing quantitative detection and fluorescence assays, we observed that ZFP36 oxidation enhances the expression and activity of genes encoding protective antioxidant enzymes. Moreover, our investigation into the thioredoxin (Trx) and glutaredoxin (Grx) families revealed that OsTrxh1 facilitates the reduction of oxidized ZFP36. Genetic evidence indicates that ZFP36 positively influences rice resilience to oxidative and water stress, while OsTrxh1 exerts an opposing effect. These insights reveal a distinctive pathway for plant cells to perceive ABA-induced H2O2 signaling, advance our comprehension of H2O2 signaling dynamics, and ABA-related plant responses, and lay a vital groundwork for enhancing crop stress tolerance.
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Affiliation(s)
- E Ji
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Shubao Hu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Qiuping Lu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Mengyao Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
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2
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Rob MM, Akhter D, Islam T, Bhattacharjya DK, Shoaib Khan MS, Islam F, Chen J. Copper stress in rice: Perception, signaling, bioremediation and future prospects. JOURNAL OF PLANT PHYSIOLOGY 2024; 302:154314. [PMID: 39033671 DOI: 10.1016/j.jplph.2024.154314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024]
Abstract
Copper (Cu) is an indispensable micronutrient for plants, animals, and microorganisms and plays a vital role in different physiological processes. However, excessive Cu accumulation in agricultural soil, often through anthropogenic action, poses a potential risk to plant health and crop productivity. This review article provided a comprehensive overview of the available information regarding Cu dynamics in agricultural soils, major sources of Cu contamination, factors influencing its mobility and bioavailability, and mechanisms of Cu uptake and translocation in rice plants. This review examined the impact of Cu toxicity on the germination, growth, and photosynthesis of rice plants. It also highlighted molecular mechanisms underlying Cu stress signaling and the plant defense strategy, involving chelation, compartmentalization, and antioxidant responses. This review also identified significant areas that need further research, such as Cu uptake mechanism in rice, Cu signaling process, and the assessment of Cu-polluted paddy soil and rice toxicity under diverse environmental conditions. The development of rice varieties with reduced Cu accumulation through comprehensive breeding programs is also necessary. Regulatory measures, fungicide management, plant selection, soil and environmental investigation are recommended to prevent Cu buildup in agricultural lands to achieve sustainable agricultural goals.
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Affiliation(s)
- Md Mahfuzur Rob
- Department of Horticulture, Faculty of Agriculture, Sylhet Agricultural University, Sylhe, 3100, Bangladesh
| | - Delara Akhter
- Department of Genetics and Plant Breeding, Sylhet Agricultural University, Sylhet, 3100, Bangladesh
| | - Tariqul Islam
- Department of Agricultural Construction and Environmental Engineering, Sylhet Agricultural University, Sylhet, 3100, Bangladesh
| | - Debu Kumar Bhattacharjya
- Department of Biochemistry, Sher-e-Bangla Agricultural University, Sherebangla Nagar, Dhaka, 1207, Bangladesh
| | | | - Faisal Islam
- International Genome Center, Jiangsu University, Zhenjiang, 212013, China.
| | - Jian Chen
- International Genome Center, Jiangsu University, Zhenjiang, 212013, China.
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3
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Joshi G, Soe YP, Palanog A, Hore TK, Nha CT, Calayugan MI, Inabangan-Asilo MA, Amparado A, Pandey ID, Cruz PCS, Hernandez JE, Swamy BPM. Meta-QTL s and haplotypes for efficient zinc biofortification of rice. THE PLANT GENOME 2023; 16:e20315. [PMID: 36896580 DOI: 10.1002/tpg2.20315] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Biofortification of rice with improved grain zinc (Zn) content is the most sustainable and cost-effective approach to address Zn malnutrition in Asia. Genomics-assisted breeding using precise and consistent Zn quantitative trait loci (QTLs), genes, and haplotypes can fast-track the development of Zn biofortified rice varieties. We conducted the meta-analysis of 155 Zn QTLs reported from 26 different studies. Results revealed 57 meta-QTLs with a significant reduction of 63.2% and 80% in the number and confidence interval of the Zn QTLs, respectively. Meta-quantitative trait loci (MQTLs) regions were found to be enriched with diverse metal homeostasis genes; at least 11 MQTLs were colocated with 20 known major genes involved in the production of root exudates, metal uptake, transport, partitioning, and loading into grains in rice. These genes were differentially expressed in vegetative and reproductive tissues, and a complex web of interactions were observed among them. We identified superior haplotypes and their combinations for nine candidate genes (CGs), and the frequency and allelic effects of superior haplotypes varied in different subgroups. The precise MQTLs with high phenotypic variance, CGs, and superior haplotypes identified in our study are useful for an efficient Zn biofortification of rice and to ensure Zn as an essential component of all the future rice varieties through mainstreaming of Zn breeding.
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Affiliation(s)
- Gaurav Joshi
- Rice Genetic Design and Validation Unit, International Rice Research Institute, Los Baños, Philippines
- Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
| | | | | | - Tapas Kumer Hore
- Rice Genetic Design and Validation Unit, International Rice Research Institute, Los Baños, Philippines
| | - Chau Thanh Nha
- Philippines Rice Research Institute, Muñoz, Nueva Ecija, Philippines
| | | | - Mary Ann Inabangan-Asilo
- Rice Genetic Design and Validation Unit, International Rice Research Institute, Los Baños, Philippines
| | - Amery Amparado
- Rice Genetic Design and Validation Unit, International Rice Research Institute, Los Baños, Philippines
| | - Indra Deo Pandey
- Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
| | | | | | - B P Mallikarjuna Swamy
- Rice Genetic Design and Validation Unit, International Rice Research Institute, Los Baños, Philippines
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4
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Konieczna W, Mierek-Adamska A, Chojnacka N, Antoszewski M, Szydłowska-Czerniak A, Dąbrowska GB. Characterization of the Metallothionein Gene Family in Avena sativa L. and the Gene Expression during Seed Germination and Heavy Metal Stress. Antioxidants (Basel) 2023; 12:1865. [PMID: 37891944 PMCID: PMC10603854 DOI: 10.3390/antiox12101865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Metallothioneins (MTs) are a family of small proteins rich in cysteine residues. The sulfhydryl group of metallothioneins can bind to metal ions, maintaining metal homeostasis and protecting the cells from damage caused by toxic heavy metals. Moreover, MTs can function as reactive oxygen species scavengers since cysteine thiols undergo reversible and irreversible oxidation. Here, we identified 21 metallothionein genes (AsMTs) in the oat (Avena sativa L.) genome, which were divided into four types depending on the amino acid sequences of putative proteins encoded by identified genes. Analysis of promoter sequences showed that MTs might respond to a variety of stimuli, including biotic and abiotic stresses and phytohormones. The results of qRT-PCR showed that all four types of AsMTs are differentially expressed during the first 48 hours of seed germination. Moreover, stress induced by the application of zinc, cadmium, and a mixture of zinc and cadmium affects the expression of oat MTs variously depending on the MT type, indicating that AsMT1-4 fulfil different roles in plant cells.
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Affiliation(s)
- Wiktoria Konieczna
- Department of Genetics, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (W.K.); (M.A.)
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland
| | - Agnieszka Mierek-Adamska
- Department of Genetics, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (W.K.); (M.A.)
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland
| | - Natalia Chojnacka
- Department of Genetics, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (W.K.); (M.A.)
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland
| | - Marcel Antoszewski
- Department of Genetics, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (W.K.); (M.A.)
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland
| | - Aleksandra Szydłowska-Czerniak
- Department of Analytical Chemistry and Applied Spectroscopy, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland;
| | - Grażyna B. Dąbrowska
- Department of Genetics, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (W.K.); (M.A.)
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5
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Chen P, Song Y, Liu X, Xiao L, Bu C, Liu P, Zhao L, Ingvarsson PK, Wu HX, El-Kassaby YA, Zhang D. LncRNA PMAT-PtoMYB46 module represses PtoMATE and PtoARF2 promoting Pb 2+ uptake and plant growth in poplar. JOURNAL OF HAZARDOUS MATERIALS 2022; 433:128769. [PMID: 35364535 DOI: 10.1016/j.jhazmat.2022.128769] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/13/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Lead (Pb2+) is one of the most toxic heavy-metal contaminants. Fast-growing woody plants with substantial biomass are ideal for bioremediation. However, the transcriptional regulation of Pb2+ uptake in woody plants remains unclear. Here, we identified 226 Pb2+-induced, differentially expressed long non-coding RNAs (DELs) in Populus tomentosa. Functional annotation revealed that these DELs mainly regulate carbon metabolism, biosynthesis of secondary metabolites, energy metabolism, and signal transduction through their potential target genes. Association and epistasis analysis showed that the lncRNA PMAT (Pb2+-induced multidrug and toxic compound extrusion (MATE) antisense lncRNA) interacts epistatically with PtoMYB46 to regulate leaf dry weight, photosynthesis rate, and transketolase activity. Genetic transformation and molecular assays showed that PtoMYB46 reduces the expression of PtoMATE directly or indirectly through PMAT, thereby reducing the secretion of citric acid (CA) and ultimately promoting Pb2+ uptake. Meanwhile, PtoMYB46 targets auxin response factor 2 (ARF2) and reduces its expression, thus positively regulating plant growth. We concluded that the PMAT-PtoMYB46-PtoMATE-PtoARF2 regulatory module control Pb2+ tolerance, uptake, and plant growth. This study demonstrates the involvement of lncRNAs in response to Pb2+ in poplar, yielding new insight into the potential for developing genetically improved woody plant varieties for phytoremediating lead-contaminated soils.
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Affiliation(s)
- Panfei Chen
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; School of Landscape Architecture, Beijing University of Agriculture, Beijing 102206, PR China
| | - Yuepeng Song
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China
| | - Xin Liu
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China
| | - Liang Xiao
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China
| | - Chenhao Bu
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China
| | - Peng Liu
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China
| | - Lei Zhao
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China
| | - Pär K Ingvarsson
- Linnean Center for Plant Biology, Department of Plant Biology, Swedish University of Agricultural Sciences, Box 7080, SE-750 07 Uppsala, Sweden
| | - Harry X Wu
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Science, Umeå, Sweden
| | - Yousry A El-Kassaby
- Department of Forest and Conservation Sciences, Faculty of Forestry, The University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Deqiang Zhang
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing 100083, PR China; School of Landscape Architecture, Beijing University of Agriculture, Beijing 102206, PR China.
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6
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Gonin M, Jeong K, Coudert Y, Lavarenne J, Hoang GT, Bes M, To HTM, Thiaw MN, Do TV, Moukouanga D, Guyomarc'h S, Bellande K, Brossier J, Parizot B, Nguyen HT, Beeckman T, Bergougnoux V, Rouster J, Sallaud C, Laplaze L, Champion A, Gantet P. CROWN ROOTLESS1 binds DNA with a relaxed specificity and activates OsROP and OsbHLH044 genes involved in crown root formation in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:546-566. [PMID: 35596715 PMCID: PMC9542200 DOI: 10.1111/tpj.15838] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/14/2022] [Accepted: 05/01/2022] [Indexed: 06/15/2023]
Abstract
In cereals, the root system is mainly composed of post-embryonic shoot-borne roots, named crown roots. The CROWN ROOTLESS1 (CRL1) transcription factor, belonging to the ASYMMETRIC LEAVES2-LIKE/LATERAL ORGAN BOUNDARIES DOMAIN (ASL/LBD) family, is a key regulator of crown root initiation in rice (Oryza sativa). Here, we show that CRL1 can bind, both in vitro and in vivo, not only the LBD-box, a DNA sequence recognized by several ASL/LBD transcription factors, but also another not previously identified DNA motif that was named CRL1-box. Using rice protoplast transient transactivation assays and a set of previously identified CRL1-regulated genes, we confirm that CRL1 transactivates these genes if they possess at least a CRL1-box or an LBD-box in their promoters. In planta, ChIP-qPCR experiments targeting two of these genes that include both a CRL1- and an LBD-box in their promoter show that CRL1 binds preferentially to the LBD-box in these promoter contexts. CRISPR/Cas9-targeted mutation of these two CRL1-regulated genes, which encode a plant Rho GTPase (OsROP) and a basic helix-loop-helix transcription factor (OsbHLH044), show that both promote crown root development. Finally, we show that OsbHLH044 represses a regulatory module, uncovering how CRL1 regulates specific processes during crown root formation.
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Affiliation(s)
- Mathieu Gonin
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Kwanho Jeong
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Yoan Coudert
- Laboratoire Reproduction et Développement des PlantesUniversité de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, INRIALyon69007France
| | - Jeremy Lavarenne
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Giang Thi Hoang
- National Key Laboratory for Plant Cell Biotechnology, LMI RICE2Agricultural Genetic Institute11300HanoiVietnam
| | - Martine Bes
- CIRAD, UMR AGAPF‐34398MontpellierFrance
- UMR AGAPUniversité de Montpellier, CIRAD, INRA, Montpellier SupAgroMontpellierFrance
| | - Huong Thi Mai To
- University of Science and Technology of Hanoi, LMIRICE2Vietnam Academy of Science and Technology11300HanoiVietnam
| | - Marie‐Rose Ndella Thiaw
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Toan Van Do
- National Key Laboratory for Plant Cell Biotechnology, LMI RICE2Agricultural Genetic Institute11300HanoiVietnam
| | - Daniel Moukouanga
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Soazig Guyomarc'h
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Kevin Bellande
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Jean‐Rémy Brossier
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Boris Parizot
- Department of Plant Biotechnology and BioinformaticsGhent UniversityB‐9052GhentBelgium
- VIB Center for Plant Systems Biology9052GhentBelgium
| | - Hieu Trang Nguyen
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Tom Beeckman
- Department of Plant Biotechnology and BioinformaticsGhent UniversityB‐9052GhentBelgium
- VIB Center for Plant Systems Biology9052GhentBelgium
| | - Véronique Bergougnoux
- Czech Advanced Technology and Research Institute, Centre of Region Haná for Biotechnological and Agricultural ResearchPalacký University OlomoucOlomoucCzech Republic
| | - Jacques Rouster
- Limagrain Field Seeds, Traits and Technologies, Groupe Limagrain—Centre de RechercheRoute d'EnnezatChappesFrance
| | - Christophe Sallaud
- Limagrain Field Seeds, Traits and Technologies, Groupe Limagrain—Centre de RechercheRoute d'EnnezatChappesFrance
| | - Laurent Laplaze
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Antony Champion
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
| | - Pascal Gantet
- UMR DIADEUniversité de Montpellier, IRD, CIRAD911 Avenue Agropolis34394Montpellier cedex 5France
- Czech Advanced Technology and Research Institute, Centre of Region Haná for Biotechnological and Agricultural ResearchPalacký University OlomoucOlomoucCzech Republic
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7
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Yanagui K, Camargo ELO, Abreu LGFD, Nagamatsu ST, Fiamenghi MB, Silva NV, Carazzolle MF, Nascimento LC, Franco SF, Bressiani JA, Mieczkowski PA, Grassi MCB, Pereira GAG. Internode elongation in energy cane shows remarkable clues on lignocellulosic biomass biosynthesis in Saccharum hybrids. Gene 2022; 828:146476. [PMID: 35413393 DOI: 10.1016/j.gene.2022.146476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/17/2022] [Accepted: 03/31/2022] [Indexed: 11/17/2022]
Abstract
Energy cane is a dedicated crop to high biomass production and selected during Saccharum breeding programs to fit specific industrial needs for 2G bioethanol production. Internode elongation is one of the most important characteristics in Saccharum hybrids due to its relationship with crop yield. In this study, we selected the third internode elongation of the energy cane. To characterize this process, we divided the internode into five sections and performed a detailed transcriptome analysis (RNA-Seq) and cell wall characterization. The histological analyses revealed a remarkable gradient that spans from cell division and protoxylem lignification to the internode maturation and complete vascular bundle lignification. RNA-Seq analysis revealed more than 11,000 differentially expressed genes between the sections internal. Gene ontology analyzes showed enriched categories in each section, as well as the most expressed genes in each section, presented different biological processes. We found that the internode elongation and division zones have a large number of unique genes. Evaluated the specific profile of genes related to primary and secondary cell wall formation, cellulose synthesis, hemicellulose, lignin, and growth-related genes. For each section these genes presented different profiles along the internode in elongation in energy cane. The results of this study provide an overview of the regulation of gene expression of an internode elongation in energy cane. Gene expression analysis revealed promising candidates for transcriptional regulation of energy cane lignification and evidence key genes for the regulation of internode development, which can serve as a basis for understanding the molecular regulatory mechanisms that support the growth and development of plants in the Saccahrum complex.
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Affiliation(s)
- Karina Yanagui
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Eduardo L O Camargo
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Luís Guilherme F de Abreu
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Sheila T Nagamatsu
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Mateus B Fiamenghi
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Nicholas V Silva
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Marcelo F Carazzolle
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Leandro C Nascimento
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Sulamita F Franco
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - José A Bressiani
- GranBio Investimentos SA, AV. Brigadeiro Faria Lima, 2777, cj. 1503, Alto de Pinheiros, São Paulo 01452-000, SP, Brazil
| | - Piotr A Mieczkowski
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Maria Carolina B Grassi
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil; Roundtable on Sustainable Biomaterials (RSB), Impact Hub Geneva, Rue Fendt 1, 1201, Geneva, Switzerland
| | - Gonçalo Amarante G Pereira
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil.
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8
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Liu S, Liu Y, Liu C, Li Y, Zhang F, Ma H. Isolation and Characterization of the GmMT-II Gene and Its Role in Response to High Temperature and Humidity Stress in Glycine max. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11111503. [PMID: 35684276 PMCID: PMC9182806 DOI: 10.3390/plants11111503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 05/27/2023]
Abstract
Metallothioneins (MTs) are polypeptide-encoded genes involved in plant growth, development, seed formation, and diverse stress response. High temperature and humidity stress (HTH) reduce seed development and maturity of the field-grown soybean, which also leads to seed pre-harvest deterioration. However, the function of MTs in higher plants is still largely unknown. Herein, we isolated and characterized the soybean metallothionein II gene. The full-length fragment is 255 bp and encodes 85 amino acids and contains the HD domain and the N-terminal non-conservative region. The subcellular location of the GmMT-II-GFP fusion protein was clearly located in the nucleus, cytoplasm, and cell membrane. The highest expression of the GmMT-II gene was observed in seeds both of the soybean Xiangdou No. 3 and Ningzhen No. 1 cultivars, as compared to other plant tissues. Similarly, gene expression was higher 45 days after flowering followed by 30, 40, and 35 days. Furthermore, the GmMT-II transcript levels were significantly higher at 96 and 12 h in the cultivars Xiangdou No. 3 and Ningzhen No. 1 under HTH stress, respectively. In addition, it was found that when the Gm1-MMP protein was deleted, the GmMT-II could bind to the propeptide region of the Gm1-MMP, but not to the signal peptide region or the catalytic region. GmMT-II overexpression in transgenic Arabidopsis increased seed germination and germination rate under HTH conditions, conferring enhanced resistance to HTH stress. GmMT-II overexpressing plants suffered less oxidative damage under HTH stress, as reflected by lower MDA and H2O2 content and ROS production than WT plants. In addition, the activity of antioxidant enzymes namely SOD, CAT, and POD was significantly higher in all transgenic Arabidopsis lines under HTH stress compared wild-tpye plants. Our results suggested that GmMT-II is related to growth and development and confers enhanced HTH stress tolerance in plants by reduction of oxidative molecules through activation of antioxidant activities. These findings will be helpful for us in further understanding of the biological functions of MT-II in plants.
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Affiliation(s)
- Sushuang Liu
- Department of Life Sciences and Health, Huzhou College, Huzhou 313000, China; (S.L.); (C.L.)
| | - Yanmin Liu
- Department of Life Sciences and Health, Huzhou College, Huzhou 313000, China; (S.L.); (C.L.)
| | - Chundong Liu
- Department of Life Sciences and Health, Huzhou College, Huzhou 313000, China; (S.L.); (C.L.)
| | - Yang Li
- College of Life Science, Huzhou University, Huzhou 313000, China;
| | - Feixue Zhang
- Institute of Crop, Huzhou Academy of Agricultural Sciences, Huzhou 313000, China;
| | - Hao Ma
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
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9
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Duan Y, Li Q, Zhang L, Huang Z, Zhao Z, Zhao H, Du J, Zhou J. Toxic Metals in a Paddy Field System: A Review. TOXICS 2022; 10:toxics10050249. [PMID: 35622662 PMCID: PMC9148070 DOI: 10.3390/toxics10050249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/30/2022] [Accepted: 05/13/2022] [Indexed: 02/06/2023]
Abstract
The threat of toxic metals to food security and human health has become a high-priority issue in recent decades. As the world’s main food crop source, the safe cultivation of rice has been the focus of much research, particularly the restoration of toxic metals in paddy fields. Therefore, in this paper, we focus on the effects of toxic metals on rice, as well as the removal or repair methods of toxic metals in paddy fields. We also provide a detailed discussion of the sources and monitoring methods of toxic metals pollution, the current toxic metal removal, and remediation methods in paddy fields. Finally, several important research issues related to toxic metals in paddy field systems are proposed for future work. The review has an important guiding role for the future of heavy metal remediation in paddy fields, safe production of rice, green ecological fish culture, and human food security and health.
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Affiliation(s)
| | | | | | | | | | | | | | - Jian Zhou
- Correspondence: ; Tel./Fax: +86-028-87955015
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10
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Mei L, Zhu Y, Liu H, Hui Y, Xiang J, Daud MK, Jiang S, Zhu S. Genome-wide characterization on MT family and their expression in response to environmental cues in upland cotton (Gossypium hirsutum L.). Int J Biol Macromol 2022; 198:54-67. [PMID: 34968536 DOI: 10.1016/j.ijbiomac.2021.12.067] [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: 10/19/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 11/27/2022]
Abstract
Metallothioneins (MTs) are believed as key metal chelators and scavengers of reactive oxygen species (ROS), which are involved in tolerance and de-toxicity to multiple environmental stresses in plants. The MT gene family was characterized from upland cotton (Gossypium hirsutum L.), compared with its putative genome donors G. arboretum and raimondii. Subsequently, gene functions were predicted by promoter analysis. Moreover, gene expressions subjecting to exogenous stimuli, as well as in terms of developments, were studied. The main findings were shown as follows: 1) 19 GhMTs were identified from G. hirsutum, and the family completely included all four sub-types, namely p1, p2, p3, and pec. Sub-type p2 GhMTs were most conservative in protein motif compositions, gene structures, phylogenic relationships, and group numbers, while p3 GhMTs demonstrated much more diversiform and distant genetic relationships. 2) The GhMT family experienced apparent gene expansion, and the members from the D sub-genome were subjected to stronger environmental selection. 3) GhMTs played differential and overlapped roles in response to environmental cues. 4) GhMT6, GhMT8, and GhMT14 were involved in both vegetative and reproductive developments. These findings must provide valuable insights into understanding the plant MT gene family and novel gene resources for cotton breeding for environmental stresses, phytoremediation, and beyond.
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Affiliation(s)
- Lei Mei
- Institution of Crop Science, Zhejiang University, Hangzhou 310058, China; Hubei Selenium Industrial Technology Research Institute, Enshi 445000, China; Department of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, United Kingdom.
| | - Yueyi Zhu
- Institution of Crop Science, Zhejiang University, Hangzhou 310058, China
| | - Haiying Liu
- School of Agriculture, Yunnan University, Kunming 650091, China
| | - Yixuan Hui
- Institution of Crop Science, Zhejiang University, Hangzhou 310058, China
| | - Jiqian Xiang
- Hubei Selenium Industrial Technology Research Institute, Enshi 445000, China; Enshi Tujia & Miao Autonomous Prefecture Academy of Agricultural Sciences, Enshi 445000, China
| | - Mohammed Khan Daud
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Sanjie Jiang
- St Edmund's College, University of Cambridge, Cambridge CB3 0BN, United Kingdom; Department of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, United Kingdom.
| | - Shuijin Zhu
- Institution of Crop Science, Zhejiang University, Hangzhou 310058, China.
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11
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Gao C, Gao K, Yang H, Ju T, Zhu J, Tang Z, Zhao L, Chen Q. Genome-wide analysis of metallothionein gene family in maize to reveal its role in development and stress resistance to heavy metal. Biol Res 2022; 55:1. [PMID: 35012672 PMCID: PMC8751047 DOI: 10.1186/s40659-021-00368-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/22/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Maize (Zea mays L.) is a widely cultivated cereal and has been used as an optimum heavy metal phytoremediation crop. Metallothionein (MT) proteins are small, cysteine-rich, proteins that play important roles in plant growth and development, and the regulation of stress response to heavy metals. However, the MT genes for maize have not been fully analyzed so far. METHODS The putative ZmMT genes were identified by HMMER.The heat map of ZmMT genes spatial expression analysis was generated by using R with the log2 (FPKM + 1).The expression profiles of ZmMT genes under three kinds of heavy metal stresses were quantified by using qRT-PCR. The metallothionein proteins was aligned using MAFFT and phylogenetic analysis were constructed by ClustalX 2.1. The protein theoretical molecular weight and pI, subcellular localization, TFs binding sites, were predicted using ProtParam, PSORT, PlantTFDB, respectively. RESULTS A total of 9 ZmMT genes were identified in the whole genome of maize. The results showed that eight of the nine ZmMT proteins contained one highly conserved metallothio_2 domain, while ZmMT4 contained a Metallothio_PEC domain. All the ZmMT proteins could be classified into three major groups and located on five chromosomes. The ZmMT promoters contain a large number of hormone regulatory elements and hormone-related transcription factor binding sites. The ZmMT genes exhibited spatiotemporal specific expression patterns in 23 tissues of maize development stages and showed the different expression patterns in response to Cu, Cd, and Pb heavy metal stresses. CONCLUSIONS We identified the 9 ZmMT genes, and explored their conserved motif, tissue expression patterns, evolutionary relationship. The expression profiles of ZmMT genes under three kinds of heavy metal stresses (Cu, Cd, Pb) were analyzed. In summary, the expression of ZmMTs have poteintial to be regulated by hormones. The specific expression of ZmMTs in different tissues of maize and the response to different heavy metal stresses are revealed that the role of MT in plant growth and development, and stress resistance to heavy metals.
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Affiliation(s)
- Canhong Gao
- School of Agronomy, Anhui Agricultural University, Anhui province, Hefei, 230036 People’s Republic of China
| | - Kun Gao
- School of Agronomy, Anhui Agricultural University, Anhui province, Hefei, 230036 People’s Republic of China
| | - Huixian Yang
- School of Agronomy, Anhui Agricultural University, Anhui province, Hefei, 230036 People’s Republic of China
| | - Tangdan Ju
- School of Agronomy, Anhui Agricultural University, Anhui province, Hefei, 230036 People’s Republic of China
| | - Jingyi Zhu
- School of Agronomy, Anhui Agricultural University, Anhui province, Hefei, 230036 People’s Republic of China
| | - Zailin Tang
- School of Agronomy, Anhui Agricultural University, Anhui province, Hefei, 230036 People’s Republic of China
| | - Liangxia Zhao
- School of Agronomy, Anhui Agricultural University, Anhui province, Hefei, 230036 People’s Republic of China
| | - Qingquan Chen
- School of Agronomy, Anhui Agricultural University, Anhui province, Hefei, 230036 People’s Republic of China
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12
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Kumar S, Yadav A, Bano N, Dubey AK, Verma R, Pandey A, Kumar A, Bag S, Srivastava S, Sanyal I. Genome-wide profiling of drought-tolerant Arabidopsis plants over-expressing chickpea MT1 gene reveals transcription factors implicated in stress modulation. Funct Integr Genomics 2022; 22:153-170. [PMID: 34988675 DOI: 10.1007/s10142-021-00823-7] [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: 09/20/2021] [Revised: 11/12/2021] [Accepted: 11/23/2021] [Indexed: 11/24/2022]
Abstract
Drought, a major abiotic limiting factor, could be modulated with in-built reprogramming of plants at molecular level by regulating the activity of plant developmental processes, stress endurance and adaptation. The transgenic Arabidopsis thaliana over-expressing metallothionein 1 (MT1) gene of desi chickpea (Cicer arietinum L.) was subjected to transcriptome analysis. We evaluated drought tolerance of 7 days old plants of Arabidopsis thaliana in both wild-type (WT) as well as transgenic plants and performed transcriptome analysis. Our analysis revealed 24,737 transcripts representing 24,594 genes out of which 5,816 were differentially expressed genes (DEGs) under drought conditions and 841 genes were common in both genotypes. A total of 1251 DEGs in WT and 2099 in MT1 were identified in comparison with control. Out of the significant DEGs, 432 and 944 were upregulated, whereas 819 and 1155 were downregulated in WT and MT1 plants, respectively. The physiological and molecular parameters involving germination assay, root length measurements under different stress treatments and quantitative expression analysis of transgenic plants in comparison to wild-type were found to be enhanced. CarMT1 plants also demonstrated modulation of various other stress-responsive genes that reprogrammed themselves for stress adaptation. Amongst various drought-responsive genes, 24 DEGs showed similar quantitative expression as obtained through RNA sequencing data. Hence, these modulatory genes could be used as a genetic tool for understanding and delineating the mechanisms for fine-tuning of stress responses in crop plants.
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Affiliation(s)
- Sanoj Kumar
- Plant Transgenic Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Uttar Pradesh, Lucknow, 226001, India.,Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, India
| | - Ankita Yadav
- Plant Transgenic Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Uttar Pradesh, Lucknow, 226001, India.,Laboratory of Morphogenesis, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Nasreen Bano
- Plant Transgenic Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Uttar Pradesh, Lucknow, 226001, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Arvind Kumar Dubey
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Be'er Sheva, Israel
| | - Rita Verma
- Plant Transgenic Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Uttar Pradesh, Lucknow, 226001, India.,Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Ankesh Pandey
- Plant Transgenic Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Uttar Pradesh, Lucknow, 226001, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Anil Kumar
- Plant Transgenic Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Uttar Pradesh, Lucknow, 226001, India.,Department of Biotechnology, Bhimtal Campus, Kumaun University, Nainital, 263136, India
| | - Sumit Bag
- Plant Transgenic Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Uttar Pradesh, Lucknow, 226001, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sudhakar Srivastava
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, India
| | - Indraneel Sanyal
- Plant Transgenic Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Uttar Pradesh, Lucknow, 226001, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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13
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Kim YO, Gwon Y, Kim J. Exogenous Cysteine Improves Mercury Uptake and Tolerance in Arabidopsis by Regulating the Expression of Heavy Metal Chelators and Antioxidative Enzymes. FRONTIERS IN PLANT SCIENCE 2022; 13:898247. [PMID: 35755654 PMCID: PMC9231614 DOI: 10.3389/fpls.2022.898247] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/24/2022] [Indexed: 05/04/2023]
Abstract
Cysteine (Cys) is an essential amino acid component of the major heavy metal chelators, such as glutathione (GSH), metallothioneins (MTs), and phytochelatins (PCs), which are involved in the pathways of mercury (Hg) tolerance in plants. However, the mechanism through which Cys facilitates Hg tolerance in plants remains largely unclear. In this study, we investigated the effects of exogenous Cys on Hg uptake in the seedlings, roots, and shoots of Arabidopsis throughout 6 and 36 h of Hg exposure and on the regulation of Hg detoxification by heavy metal chelators and antioxidative enzymes. The results showed that exogenous Cys significantly improved Hg tolerance during the germination and seedling growth stages in Arabidopsis. Exogenous Cys significantly promoted Hg uptake in Arabidopsis roots by upregulating the expression of the Cys transporter gene AtLHT1, resulting in increased Hg accumulation in the roots and seedlings. In Arabidopsis seedlings, exogenous Cys further increased the Hg-induced glutathione synthase (GS1 and GS2) transcript levels, and the Hg and Hg + Cys treatments greatly upregulated MT3 expression after 36 h exposure. In the roots, MT3 was also significantly upregulated by treatment of 36 h of Hg or Hg + Cys. Notably, in the shoots, MT2a expression was rapidly induced (10-fold) in Hg presence and further markedly increased (20-fold) by exogenous Cys. Moreover, in the seedlings, exogenous Cys upregulated the transcripts of all superoxide dismutase (CuSOD1, CuSOD2, MnSOD1, FeSOD1, FeSOD2, and FeSOD3) within 6 h and subsequently increased the Hg-induced GR1 and GR2 transcript levels at 36 h, all of which could eliminate the promotion of reactive oxygen species production and cell damage caused by Hg. Additionally, exogenous Cys upregulated all the antioxidative genes rapidly in the roots and subsequently increased the expression of CuSOD1, CuSOD2, and MnSOD1 in the shoots. These results indicate that exogenous Cys regulates the transcript levels of heavy metal chelators and antioxidative enzymes differently in a time- and organ-specific manner under Hg stress. Taken together, our study elucidates the positive functional roles of exogenous Cys in the Hg uptake and tolerance mechanisms of Arabidopsis.
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Affiliation(s)
- Yeon-Ok Kim
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, South Korea
- *Correspondence: Yeon-Ok Kim, ;
| | - Yonghyun Gwon
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, South Korea
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, South Korea
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Jangho Kim
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, South Korea
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, South Korea
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
- Jangho Kim,
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14
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Ahmed T, Noman M, Rizwan M, Ali S, Shahid MS, Li B. Recent progress on the heavy metals ameliorating potential of engineered nanomaterials in rice paddy: a comprehensive outlook on global food safety with nanotoxicitiy issues. Crit Rev Food Sci Nutr 2021; 63:2672-2686. [PMID: 34554039 DOI: 10.1080/10408398.2021.1979931] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Soil contamination with toxic heavy metals (HMs) poses a serious threat to global food safety, soil ecosystem and human health. The rapid industrialization, urbanization and extensive application of agrochemicals on arable land have led to paddy soil pollution worldwide. Rice plants easily accumulate toxic HMs from contaminated agricultural soils, which ultimately accumulated in grains and enters the food chain. Although, physical and chemical remediation techniques have been used for the treatment of HMs-contaminated soils, however, they also have many drawbacks, such as toxicity, capital investment and environmental-associated hazards. Recently, engineered nanomaterials (ENMs) have gained substantial attention owing to their promising environmental remediation applications. Numerous studies have revealed the use of ENMs for reclamation of toxic HMs from contaminated environment. This review mainly focuses on HMs toxicity in paddy soils along with potential health risks to humans. It also provides a critical outlook on the recent advances and future perspectives of nanoremediation strategies. Additionally, we will also propose the interacting mechanism of HMs-ENMs to counteract metal-associated phytotoxicities in rice plants to achieve global food security and environmental safety.
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Affiliation(s)
- Temoor Ahmed
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Muhammad Noman
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Shafiq Shahid
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Bin Li
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
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15
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Llerena JPP, Coasaca RL, Rodriguez HOL, Llerena SÁP, Valencia YD, Mazzafera P. Metallothionein production is a common tolerance mechanism in four species growing in polluted Cu mining areas in Peru. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 212:112009. [PMID: 33556811 DOI: 10.1016/j.ecoenv.2021.112009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 01/04/2021] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
Cu pollution is a problem in mining areas in Peru. Here we evaluate the phytoextraction capacity, physiological and proteomic responses of four species growing in copper-contaminated areas in Arequipa, Peru. The plants used in the experiments were obtained by collecting seedlings (Tessaria integrifolia, Bacharis salicifolia), rhizomes (Eleocharis montevidensis) and seeds (Chenopodium murale) along a polluted river. They were exposed to solutions containing 2, 4, 8, 16 and 32 mg Cu L-1 during 20 days. Growth was affected in a concentration-dependent way. According to the tolerance index, B. salicifolia and C. murale were the most sensitive species, but with greater Cu phytoextraction capacity and accumulation in the biomass. The content and ratio of photosynthetic pigments changed differently for each specie and carotenoids level were less affected than chlorophyll. Cu also induced changes in the protein and sugar contents. Antioxidant enzyme activities (catalase and superoxide dismutase) increased with a decrease in the malondialdehyde. There were marked changes in the protein 2D-PAGE profiles with an increase in the abundance of metallothioneins (MT) of class II type I and II. Our results suggest that these species can grow in Cu polluted areas because they developed multiple tolerance mechanisms, such as and MTs production seems a important one.
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Affiliation(s)
- Juan Pablo Portilla Llerena
- Department of Plant Biology, Institute of Biology, University of Campinas, Campinas, Brazil; Academic Department of Biology, Professional and Academic School of Biology, Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru.
| | - Raúl Lima Coasaca
- Department of Sanitation and Environment, Faculty of Civil Engineering, Architecture and Urbanism, State University of Campinas, Campinas, SP 13083-970, Brazil; School of Chemical Engineering, Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru
| | - Herbert Omar Lazo Rodriguez
- Academic Department of Biology, Professional and Academic School of Biology, Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru
| | - Sofía Ángela Portilla Llerena
- Academic Department of Biology, Professional and Academic School of Biology, Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru
| | - Ysabel Diaz Valencia
- Academic Department of Biology, Professional and Academic School of Biology, Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru
| | - Paulo Mazzafera
- Department of Plant Biology, Institute of Biology, University of Campinas, Campinas, Brazil; Department of Crop Science, College of Agriculture "Luiz de Queiroz" - ESALQ, University of São Paulo - USP, Piracicaba, SP, Brazil
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16
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Rono JK, Le Wang L, Wu XC, Cao HW, Zhao YN, Khan IU, Yang ZM. Identification of a new function of metallothionein-like gene OsMT1e for cadmium detoxification and potential phytoremediation. CHEMOSPHERE 2021; 265:129136. [PMID: 33276998 DOI: 10.1016/j.chemosphere.2020.129136] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/07/2020] [Accepted: 11/25/2020] [Indexed: 05/27/2023]
Abstract
Cadmium (Cd) is a biologically non-essential and toxic heavy metal leaking to the environment via natural emission or anthropogenic activities, thereby contaminating crops and threatening human health. Metallothioneins (MTs) are a group of metal-binding proteins playing critical roles in metal allocation and homeostasis. In this study, we identified a novel function of OsMT1e from rice plants. OsMT1e was dominantly expressed in roots at all developmental stages and, to less extent, expressed in leaves at vegetative and seed filling stages. OsMT1e was mainly targeted to the nucleus and substantially induced by Cd exposure. Expression of OsMT1e in a yeast Cd-sensitive strain ycf1 conferred cellular tolerance to Cd, even though the ycf1 + OsMT1e cells accumulated more Cd than the control cells (ycf1 + pYES2). Both transgenic rice overexpressing (OX) and repressing OsMT1e by RNA interference (RNAi) were developed. Phenotypic analysis revealed that OsMT1e overexpression enhanced the rice growth concerning the increased shoot or root elongation, dry weight and chlorophyll contents, whereas the RNAi lines displayed a sensitive growth phenotype compared to wild-type. Assessment with 0.5, 2 and 10 μM Cd for two weeks revealed that the RNAi lines accumulated less Cd, while the OX lines had an increased Cd accumulation in root and shoot tissues. The contrasting Cd accumulation phenotypes between the OX and RNAi lines were further confirmed by a long-term study with 0.5 μM Cd for one month. Overall, the study unveiled a new function of OsMT1e in rice, which can be potentially used for engineering genotypes for phytoremediation or minimizing Cd in rice crops.
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Affiliation(s)
- Justice Kipkorir Rono
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Le Le Wang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xue Chun Wu
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hong Wei Cao
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ya Ning Zhao
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Irfan Ullah Khan
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhi Min Yang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
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17
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Marzec M, Situmorang A, Brewer PB, Brąszewska A. Diverse Roles of MAX1 Homologues in Rice. Genes (Basel) 2020; 11:E1348. [PMID: 33202900 PMCID: PMC7709044 DOI: 10.3390/genes11111348] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/30/2020] [Accepted: 11/10/2020] [Indexed: 02/07/2023] Open
Abstract
Cytochrome P450 enzymes encoded by MORE AXILLARY GROWTH1 (MAX1)-like genes produce most of the structural diversity of strigolactones during the final steps of strigolactone biosynthesis. The diverse copies of MAX1 in Oryza sativa provide a resource to investigate why plants produce such a wide range of strigolactones. Here we performed in silico analyses of transcription factors and microRNAs that may regulate each rice MAX1, and compared the results with available data about MAX1 expression profiles and genes co-expressed with MAX1 genes. Data suggest that distinct mechanisms regulate the expression of each MAX1. Moreover, there may be novel functions for MAX1 homologues, such as the regulation of flower development or responses to heavy metals. In addition, individual MAX1s could be involved in specific functions, such as the regulation of seed development or wax synthesis in rice. Our analysis reveals potential new avenues of strigolactone research that may otherwise not be obvious.
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Affiliation(s)
- Marek Marzec
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Jagiellonska 28, 40-032 Katowice, Poland;
| | - Apriadi Situmorang
- ARC Centre of Excellence in Plant Energy Biology, Waite Research Institute, School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA 5064, Australia; (A.S.); (P.B.B.)
| | - Philip B. Brewer
- ARC Centre of Excellence in Plant Energy Biology, Waite Research Institute, School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA 5064, Australia; (A.S.); (P.B.B.)
| | - Agnieszka Brąszewska
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Jagiellonska 28, 40-032 Katowice, Poland;
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18
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Ding Y, Mei J, Chai Y, Yang W, Mao Y, Yan B, Yu Y, Disi JO, Rana K, Li J, Qian W. Sclerotinia sclerotiorum utilizes host-derived copper for ROS detoxification and infection. PLoS Pathog 2020; 16:e1008919. [PMID: 33002079 PMCID: PMC7553324 DOI: 10.1371/journal.ppat.1008919] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 10/13/2020] [Accepted: 08/20/2020] [Indexed: 12/17/2022] Open
Abstract
Necrotrophic plant pathogen induces host reactive oxygen species (ROS) production, which leads to necrosis in the host, allowing the pathogen to absorb nutrients from the dead tissues. Sclerotinia sclerotiorum is a typical necrotrophic pathogen that causes Sclerotinia stem rot in more than 400 species, resulting in serious economic losses. Here, we found that three S. sclerotiorum genes involved in copper ion import/transport, SsCTR1, SsCCS and SsATX1, were significantly up-regulated during infection of Brassica oleracea. Function analysis revealed that these genes involved in fungal ROS detoxification and virulence. On the host side, four genes putatively involved in copper ion homeostasis, BolCCS, BolCCH, BolMT2A and BolDRT112, were significantly down-regulated in susceptible B. oleracea, but stably expressed in resistant B. oleracea during infection. Their homologs were found to promote resistance to S. sclerotiorum and increase antioxidant activity in Arabidopsis thaliana. Furthermore, copper concentration analysis indicated that copper flow from healthy area into the necrotic area during infection. A model was proposed that S. sclerotiorum utilizes host copper to detoxify ROS in its cells, whereas the resistant hosts may restrict the supply of essential copper nutrients to S. sclerotiorum by maintaining copper ion homeostasis during infection.
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Affiliation(s)
- Yijuan Ding
- College of Agronomy and Biotechnology, Southwest University, China
- Academy of Agricultural Sciences, Southwest University, China
| | - Jiaqin Mei
- College of Agronomy and Biotechnology, Southwest University, China
- Academy of Agricultural Sciences, Southwest University, China
| | - Yaru Chai
- College of Agronomy and Biotechnology, Southwest University, China
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, China
| | - Wenjing Yang
- College of Agronomy and Biotechnology, Southwest University, China
- Academy of Agricultural Sciences, Southwest University, China
| | - Yi Mao
- College of Agronomy and Biotechnology, Southwest University, China
- Academy of Agricultural Sciences, Southwest University, China
| | - Baoqin Yan
- College of Agronomy and Biotechnology, Southwest University, China
- Academy of Agricultural Sciences, Southwest University, China
| | - Yang Yu
- College of Plant Protection, Southwest University, China
| | - Joseph Onwusemu Disi
- Department of Entomology, University of Georgia, Athens, United States of America
| | - Kusum Rana
- College of Agronomy and Biotechnology, Southwest University, China
- Academy of Agricultural Sciences, Southwest University, China
| | - Jiana Li
- College of Agronomy and Biotechnology, Southwest University, China
- Academy of Agricultural Sciences, Southwest University, China
| | - Wei Qian
- College of Agronomy and Biotechnology, Southwest University, China
- Academy of Agricultural Sciences, Southwest University, China
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19
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Mekawy AMM, Assaha DVM, Ueda A. Constitutive overexpression of rice metallothionein-like gene OsMT-3a enhances growth and tolerance of Arabidopsis plants to a combination of various abiotic stresses. JOURNAL OF PLANT RESEARCH 2020; 133:429-440. [PMID: 32253631 DOI: 10.1007/s10265-020-01187-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
Metallothioneins (MT) are primarily involved in metal chelation. Recent studies have shown that MT proteins are also involved in the responses of plants to various environmental stresses. The rice metallothionein-like gene OsMT-3a is upregulated by salinity and various abiotic stressors. A DNA construct containing the complete OsMT-3a coding sequence cloned downstream to the CaMV35S promoter was transformed into Arabidopsis and homozygous single-copy transgenic lines were produced. Compared to wild-type plants, transgenic plants showed substantially increased salinity tolerance (NaCl), drought tolerance (PEG), and heavy metal tolerance (CdCl2) as individual stresses, as well as different combinations of these stresses. Relevantly, under unstressed control conditions, vegetative growth of transgenic plants was also improved. The shoot Na+ concentration and hydrogen peroxide in transgenic plants were lower than those in wild-type plants. OsMT-3a-overexpressing Arabidopsis lines accumulated higher levels of Cd2+ in both shoots and roots following CdCl2 treatment. In the transgenic MT-3a lines, increased activity of two major antioxidant enzymes, catalase and ascorbate peroxidase, was observed. Thus, rice OsMT-3a is a valuable target gene for plant genetic improvement against multiple abiotic stresses.
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Affiliation(s)
- Ahmad Mohammad M Mekawy
- Department of Botany and Microbiology, Faculty of Science, Minia University, El-Minia, 61519, Egypt
| | - Dekoum V M Assaha
- Department of Agriculture, Higher Technical Teachers' Training College, University of Buea, PO Box 249, Kumba, SWR, Cameroon
| | - Akihiro Ueda
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan.
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20
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Phule AS, Barbadikar KM, Maganti SM, Seguttuvel P, Subrahmanyam D, Babu MBBP, Kumar PA. RNA-seq reveals the involvement of key genes for aerobic adaptation in rice. Sci Rep 2019; 9:5235. [PMID: 30918284 PMCID: PMC6437204 DOI: 10.1038/s41598-019-41703-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 03/01/2019] [Indexed: 12/24/2022] Open
Abstract
Adaptation of rice to the aerobic condition is needed to cope with the water scarcity as well as to ensure sustainable yield in future. To understand the molecular mechanisms responsible for aerobic adaptation in rice, we performed RNA-seq analysis of root and shoot i.e. developing panicle tissues at panicle initiation stage in two cultivars adapted to aerobic (CR Dhan 202) and traditional transplanted anaerobic (BPT 5204) conditions. The RNA-seq data emanated from 1.65 billion clean reads with approximately 37 million reads per sample. The number of differentially expressed transcripts was higher in the root than that in the shoot under both aerobic and anaerobic conditions. The transcription factors viz. MADS4, MADS5, MADS6, MADS7, MADS15 and transporters involved in sugar (SWEET3A) and nutrient uptake (PHT1;6, MDR-like ABC and vacuolar iron transporter homolog 2) were highly and uniquely expressed in the aerobic adapted cultivar (AAC) CR Dhan 202 under aerobic condition indicating their role in adaptation. The hormones such as ethylene and abscisic acid might be significantly involved in imparting aerobic adaptation. The higher expression of root related genes in the AAC under aerobic conditions suggests the involvement and sensitivity of roots to the water limiting condition. The metabolic activities are also more pronounced in the roots which impart rigorous plant establishment under the aerobic condition. The presence of alternative splice variants in the transcripts viz. Tetratrico peptide repeat (TPR) domain containing protein and GOLDEN2-LIKE1 (GLK1) additionally confirms that post transcriptional regulation is also crucial for aerobic adaptation. The QTLs related to root traits and stress tolerance harboring the uniquely expressed genes, which were identified in the present study can be deployed in molecular breeding programs to develop elite, high yielding aerobic rice cultivars.
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Affiliation(s)
- Amol S Phule
- Biotechnology Division, ICAR-Indian Institute of Rice Research, Hyderabad, 30, India
- Institute of Biotechnology, Professor Jayashankar Telangana State Agricultural University, Hyderabad, 30, India
| | - Kalyani M Barbadikar
- Biotechnology Division, ICAR-Indian Institute of Rice Research, Hyderabad, 30, India
| | - Sheshu Madhav Maganti
- Biotechnology Division, ICAR-Indian Institute of Rice Research, Hyderabad, 30, India
| | - P Seguttuvel
- Biotechnology Division, ICAR-Indian Institute of Rice Research, Hyderabad, 30, India
| | - D Subrahmanyam
- Biotechnology Division, ICAR-Indian Institute of Rice Research, Hyderabad, 30, India
| | - M B B Prasad Babu
- Biotechnology Division, ICAR-Indian Institute of Rice Research, Hyderabad, 30, India
| | - Polumetla A Kumar
- Biotechnology Division, ICAR-Indian Institute of Rice Research, Hyderabad, 30, India.
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21
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Pavlů J, Novák J, Koukalová V, Luklová M, Brzobohatý B, Černý M. Cytokinin at the Crossroads of Abiotic Stress Signalling Pathways. Int J Mol Sci 2018; 19:ijms19082450. [PMID: 30126242 PMCID: PMC6121657 DOI: 10.3390/ijms19082450] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 08/14/2018] [Accepted: 08/17/2018] [Indexed: 01/13/2023] Open
Abstract
Cytokinin is a multifaceted plant hormone that plays major roles not only in diverse plant growth and development processes, but also stress responses. We summarize knowledge of the roles of its metabolism, transport, and signalling in responses to changes in levels of both macronutrients (nitrogen, phosphorus, potassium, sulphur) and micronutrients (boron, iron, silicon, selenium). We comment on cytokinin's effects on plants' xenobiotic resistance, and its interactions with light, temperature, drought, and salinity signals. Further, we have compiled a list of abiotic stress-related genes and demonstrate that their expression patterns overlap with those of cytokinin metabolism and signalling genes.
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Affiliation(s)
- Jaroslav Pavlů
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Jan Novák
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Vladěna Koukalová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Markéta Luklová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Břetislav Brzobohatý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- Institute of Biophysics AS CR, 612 00 Brno, Czech Republic.
| | - Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- Phytophthora Research Centre, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
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