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Chen C, Wu Q, Yue J, Wang X, Wang C, Wei R, Li R, Jin G, Chen T, Chen P. A cyclic nucleotide-gated channel gene HcCNGC21 positively regulates salt and drought stress responses in kenaf (Hibiscus cannabinus L.). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 345:112111. [PMID: 38734143 DOI: 10.1016/j.plantsci.2024.112111] [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: 12/29/2023] [Revised: 05/01/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
Cyclic Nucleotide-Gated Channels (CNGCs) serve as Ca2+ permeable cation transport pathways, which are involved in the regulation of various biological functions such as plant cell ion selective permeability, growth and development, responses to biotic and abiotic stresses. At the present study, a total of 31 CNGC genes were identified and bioinformatically analyzed in kenaf. Among these genes, HcCNGC21 characterized to localize at the plasma membrane, with the highest expression levels in leaves, followed by roots. In addition, HcCNGC21 could be significantly induced under salt or drought stress. Virus-induced gene silencing (VIGS) of HcCNGC21 in kenaf caused notable growth inhibition under salt or drought stress, characterized by reductions in plant height, stem diameter, leaf area, root length, root surface area, and root tip number. Meanwhile, the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) were significantly decreased, accompanied by reduced levels of osmoregulatory substances and total chlorophyll content. However, ROS accumulation and Na+ content increased. The expression of stress-responsive genes, such as HcSOD, HcPOD, HcCAT, HcERF3, HcNAC29, HcP5CS, HcLTP, and HcNCED, was significantly downregulated in these silenced lines. However, under salt or drought stress, the physiological performance and expression of stress-related genes in transgenic Arabidopsis thaliana plants overexpressing HcCNGC21 were diametrically opposite to those of TRV2-HcCNGC21 kenaf line. Yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) assays revealed that HcCNGC21 interacts with HcAnnexin D1. These findings collectively underscore the positive role of HcCNGC21 in plant resistance to salt and drought stress.
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Affiliation(s)
- Canni Chen
- College of Agriculture, Guangxi University, Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi Key Laboratory of Agro-environment and Agric-products safety, Nanning 530004, China
| | - Qijing Wu
- College of Agriculture, Guangxi University, Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi Key Laboratory of Agro-environment and Agric-products safety, Nanning 530004, China
| | - Jiao Yue
- College of Agriculture, Guangxi University, Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi Key Laboratory of Agro-environment and Agric-products safety, Nanning 530004, China
| | - Xu Wang
- College of Agriculture, Guangxi University, Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi Key Laboratory of Agro-environment and Agric-products safety, Nanning 530004, China
| | - Caijin Wang
- College of Agriculture, Guangxi University, Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi Key Laboratory of Agro-environment and Agric-products safety, Nanning 530004, China
| | - Rujian Wei
- College of Agriculture, Guangxi University, Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi Key Laboratory of Agro-environment and Agric-products safety, Nanning 530004, China
| | - Ru Li
- College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Gang Jin
- Guangxi Subtropical Crops Research Institute, Nanning 530001, China
| | - Tao Chen
- Guangxi Subtropical Crops Research Institute, Nanning 530001, China
| | - Peng Chen
- College of Agriculture, Guangxi University, Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Guangxi Key Laboratory of Agro-environment and Agric-products safety, Nanning 530004, China.
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Yu X, Wang L, Xie Y, Zhu Y, Xie H, Wei L, Xiao Y, Cai Q, Chen L, Xie H, Zhang J. OsBBP1, a newly identified protein containing DUF630 and DUF632 domains confers drought tolerance in rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 345:112119. [PMID: 38759757 DOI: 10.1016/j.plantsci.2024.112119] [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: 02/03/2024] [Revised: 05/10/2024] [Accepted: 05/12/2024] [Indexed: 05/19/2024]
Abstract
Domain of unknown function (DUF) protein families, which are uncharacterized and numerous within the Pfam database. Recently, studies have demonstrated that DUFs played crucial roles in plant development, but whether, or how, they function in drought resistance remain unclear. In this study, we identified the Os03g0321500 gene, encoding OsbZIP72 binding protein 1 (OsBBP1), as a target of OsbZIP72 using chromatin immunoprecipitation sequencing in rice. OsBBP1 is a novel member of DUFs, which localize both in the nuclei and cytoplasm of rice protoplasts. Furthermore, yeast one-hybrid and electrophoretic mobility shift assays confirmed the specific binding between OsbZIP72 and OsBBP1. Additionally, a luciferase reporter analysis illustrated that OsbZIP72 activated the expression of OsBBP1. Drought tolerance experiments demonstrate that the OsBBP1 CRISPER-CAS9 transgenic mutants were sensitive to drought stress, but the transgenic OsBBP1 over-expressing rice plants showed enhanced drought resistance. Moreover, drought tolerance experiments in a paddy field suggested that OsBBP1 contributed to less yield or yield-related losses under drought conditions. Mechanistically, OsBBP1 might confer drought resistance by inducing more efficient reactive oxygen species (ROS) scavenging. Several ROS scavenging-related genes showed increased expression levels in OsBBP1 overexpression lines and decreased expression levels in OsBBP1 CRISPER-CAS9 mutants under drought conditions. Thus, OsBBP1, acting downstream of OsbZIP72, contributes to drought resistance and causes less yield or yield-related losses under drought conditions.
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Affiliation(s)
- Xiangzhen Yu
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Lanning Wang
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Yunjie Xie
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Yongsheng Zhu
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Hongguang Xie
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Linyan Wei
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Yanjia Xiao
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Qiuhua Cai
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Liping Chen
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China
| | - Huaan Xie
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China.
| | - Jianfu Zhang
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, P.R. China/Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, China.
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Wang H, Bi Y, Yan Y, Yuan X, Gao Y, Noman M, Li D, Song F. A NAC transcription factor MNAC3-centered regulatory network negatively modulates rice immunity against blast disease. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024. [PMID: 38953747 DOI: 10.1111/jipb.13727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 06/02/2024] [Indexed: 07/04/2024]
Abstract
NAC transcription factors (TFs) are pivotal in plant immunity against diverse pathogens. Here, we report the functional and regulatory network of MNAC3, a novel NAC TF, in rice immunity. MNAC3, a transcriptional activator, negatively modulates rice immunity against blast and bacterial leaf blight diseases and pathogen-associated molecular pattern (PAMP)-triggered immune responses. MNAC3 binds to a CACG cis-element and activates the transcription of immune-negative target genes OsINO80, OsJAZ10, and OsJAZ11. The negative function of MNAC3 in rice immunity depends on its transcription of downstream genes such as OsINO80 and OsJAZ10. MNAC3 interacts with immunity-related OsPP2C41 (a protein phosphatase), ONAC066 (a NAC TF), and OsDjA6 (a DnaJ chaperone). ONAC066 and OsPP2C41 attenuate MNAC3 transcriptional activity, while OsDjA6 promotes it. Phosphorylation of MNAC3 at S163 is critical for its negative functions in rice immunity. OsPP2C41, which plays positive roles in rice blast resistance and chitin-triggered immune responses, dephosphorylates MNAC3, suppressing its transcriptional activity on the target genes OsINO80, OsJAZ10, and OsJAZ11 and promoting the translocation of MNAC3 from nucleus to cytoplasm. These results establish a MNAC3-centered regulatory network in which OsPP2C41 dephosphorylates MNAC3, attenuating its transcriptional activity on downstream immune-negative target genes in rice. Together, these findings deepen our understanding of molecular mechanisms in rice immunity and offer a novel strategy for genetic improvement of rice disease resistance.
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Affiliation(s)
- Hui Wang
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Yan Bi
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Yuqing Yan
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xi Yuan
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Yizhou Gao
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Muhammad Noman
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Dayong Li
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Fengming Song
- National Key Laboratory for Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
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Miao M, Shi X, Zheng X, Wu B, Miao Y. Characterization of SIPs-type aquaporins and their roles in response to environmental cues in rice (Oryza sativa L.). BMC PLANT BIOLOGY 2024; 24:305. [PMID: 38644479 PMCID: PMC11034084 DOI: 10.1186/s12870-024-05002-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: 12/17/2023] [Accepted: 04/09/2024] [Indexed: 04/23/2024]
Abstract
BACKGROUND Aquaporins (AQPs) facilitate water diffusion across biological membranes and are involved in all phases of growth and development. Small and basic intrinsic proteins (SIPs) belong to the fourth subfamily of the plant AQPs. Although SIPs are widely present in higher plants, reports on SIPs are limited. Rice is one of the major food crops in the world, and water use is an important factor affecting rice growth and development; therefore, this study aimed to provide information relevant to the function and environmental response of the rice SIP gene family. RESULTS The rice (Oryza sativa L. japonica) genome encodes two SIP-like genes, OsSIP1 and OsSIP2, whose products are predominantly located in the endoplasmic reticulum (ER) membrane but transient localization to the plasma membrane is not excluded. Heterologous expression in a yeast aquaglyceroporin-mutant fps1Δ showed that both OsSIP1 and OsSIP2 made the cell more sensitive to KCl, sorbitol and H2O2, indicating facilitated permeation of water and hydrogen peroxide. In addition, the yeast cells expressing OsSIP2 were unable to efflux the toxic methylamine taken up by the endogenous MEP permeases, but OsSIP1 showed subtle permeability to methylamine, suggesting that OsSIP1 may have a wider conducting pore than OsSIP2. Expression profiling in different rice tissues or organs revealed that OsSIP1 was expressed in all tissues tested, whereas OsSIP2 was preferentially expressed in anthers and weakly expressed in other tissues. Consistent with this, histochemical staining of tissues expressing the promoter-β-glucuronidase fusion genes revealed their tissue-specific expression profile. In rice seedlings, both OsSIPs were upregulated to varied levels under different stress conditions, including osmotic shock, high salinity, unfavorable temperature, redox challenge and pathogen attack, as well as by hormonal treatments such as GA, ABA, MeJA, SA. However, a reduced expression of both OsSIPs was observed under dehydration treatment. CONCLUSIONS Our results suggest that SIP-like aquaporins are not restricted to the ER membrane and are likely to be involved in unique membrane functions in substrate transport, growth and development, and environmental response.
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Affiliation(s)
- Miao Miao
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou, China
| | - Ximiao Shi
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou, China
| | - Xiangzi Zheng
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou, China
| | - Binghua Wu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Ying Miao
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou, China.
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Wang Z, He Z, Gao C, Wang C, Song X, Wang Y. Phosphorylation of birch BpNAC90 improves the activation of gene expression to confer drought tolerance. HORTICULTURE RESEARCH 2024; 11:uhae061. [PMID: 38659443 PMCID: PMC11040210 DOI: 10.1093/hr/uhae061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 02/18/2024] [Indexed: 04/26/2024]
Abstract
The NAC transcription factors (TFs) play important roles in mediating abiotic stress tolerance; however, the mechanism is still not fully known. Here, an NAC gene (BpNAC90) from a gene regulatory network of Betula platyphylla (birch) that responded to drought was characterized. Overexpression and knockout of BpNAC90 displayed increased and reduced drought tolerance, respectively, relative to wild-type (WT) birch. BpNAC90 binds to different DNA motifs to regulate target genes in conferring drought tolerance, such as Eomes2, ABRE and Tgif2. BpNAC90 is phosphorylated by drought stress at Ser 205 by birch SNF1-related protein kinase 2 (BpSRK2A). Mutated BpNAC90 (termed S205A) with abolished phosphorylation, was transformed into birch for overexpression. The transgenic S205A plants displayed significantly reduced drought tolerance compared with plants overexpressing BpNAC90, but still showed increased drought tolerance relative to WT birch. At the same time, S205A showed a decreased capability to bind to motifs and reduced activation of target gene expression, which contributed to the reduced drought tolerance. Additionally, BpSRK2A and BpNAC90 can be induced by drought stress and form a complex to phosphorylate BpNAC90. The results together indicated that phosphorylation of BpNAC90 is necessary in conferring drought tolerance in birch.
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Affiliation(s)
- Zhibo Wang
- College of Life Science, Northeast Forestry University, Harbin 150040, China
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
| | - Zihang He
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
| | - Caiqiu Gao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
| | - Chao Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
| | - Xingshun Song
- College of Life Science, Northeast Forestry University, Harbin 150040, China
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
| | - Yucheng Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
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Bo C, Liu D, Yang J, Ji M, Li Z, Zhu Y, Duan Y, Xue J, Xue T. Comprehensive in silico characterization of NAC transcription factor family of Pinellia ternata and functional analysis of PtNAC66 under high-temperature tolerance in transgenic Arabidopsis thaliana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108539. [PMID: 38513515 DOI: 10.1016/j.plaphy.2024.108539] [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: 12/21/2023] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024]
Abstract
Pinellia ternata, a valuable Chinese herb, suffers yield reduction due to "sprout tumble" under high temperatures. However, the mechanisms underlying its high-temperature stress remain poorly understood. NAM, ATAF1/2, and CUC2 (NAC) transcription factors regulate plant tissue growth and abiotic stress. Hence, there has been no comprehensive research conducted on NAC transcription factors in P. ternata. We identified 98 PtNAC genes unevenly distributed across 13 chromosomes, grouped into 15 families via phylogenetic analysis. Gene expression analysis revealed diverse expression patterns of PtNAC genes in different tissue types. Further studies revealed that PtNAC5/7/17/35/43/47/57/66/86 genes were highly expressed in various tissues of P. ternata and induced by heat stress, among which PtNAC66 was up-regulated at the highest folds induced by heat temperature. PtNAC66 is a nuclear protein that can selectively bind to the cis-responsive region NACRS but lacks the ability to activate transcription in yeast. For further research, PtNAC66 was cloned and transgenic Arabidopsis was obtained. PtNAC66 overexpression increased high-temperature tolerance compared to wild-type plants. Transcriptome profiling demonstrated that overexpression of PtNAC66 led to significant modification of genes responsible for regulating binding, catalytic activity, transcription regulator activity and transporter activity response genes. Additionally, PtNAC66 was found to bind the promoters of CYP707A3, MYB102 and NAC055, respectively, and inhibited their expression, affecting the high-temperature stress response in Arabidopsis. Our research established the foundation for functional studies of PtNAC genes in response to high-temperature forcing by characterizing the P. ternata NAC gene family and examining the biological role of PtNAC66 in plant high-temperature tolerance.
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Affiliation(s)
- Chen Bo
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Dan Liu
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Jinrong Yang
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Mingfang Ji
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Zhen Li
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Yanfang Zhu
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Yongbo Duan
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Jianping Xue
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China.
| | - Tao Xue
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China.
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Zhang M, Hou X, Yang H, Wang J, Li Y, Liu Q, Zhang C, Wang B, Chen M. The NAC gene family in the halophyte Limonium bicolor: Identification, expression analysis, and regulation of abiotic stress tolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108462. [PMID: 38484683 DOI: 10.1016/j.plaphy.2024.108462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/10/2024] [Accepted: 02/21/2024] [Indexed: 04/02/2024]
Abstract
NAC transcription factors regulate plant growth, development, and stress responses. However, the number, types, and biological functions of Limonium bicolor LbNAC genes have remained elusive. L. bicolor secretes excessive salt ions through salt glands on its stems and leaves to reduce salt-induced damage. Here, we identified 63 NAC members (LbNAC1-63) in L. bicolor, which were unevenly distributed across eight chromosomes. Cis-elements in the LbNAC promoters were related to growth and development, stress responses, and phytohormone responses. We observed strong colinearity between LbNACs and GmNACs from soybean (Glycine max). Thus, LbNAC genes may share similar functions with GmNAC genes. Expression analysis indicated that 16 LbNAC genes are highly expressed in roots, stems, leaves, and flowers, whereas 17 LbNAC genes were highly expressed throughout salt gland development, suggesting that they may regulate this developmental stage. Silencing LbNAC54 in L. bicolor decreased salt gland density, salt secretion from leaves, and overall salt tolerance. In agreement, genes related to salt gland development were significantly downregulated in LbNAC54-silenced lines. Our findings shed light on LbNAC genes and help elucidate salt gland development and salt secretion in L. bicolor. Our data also provide insight into NAC functions in halophytes.
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Affiliation(s)
- Mingjing Zhang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China; Laboratory of Plant Molecular Biology & Crop Gene Editing, School of Life Sciences, Linyi University, Linyi, 276000, China
| | - Xueting Hou
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China
| | - Hui Yang
- National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying, 257000, China
| | - Juying Wang
- National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying, 257000, China
| | - Ying Li
- National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying, 257000, China
| | - Qing Liu
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China
| | - Caixia Zhang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China
| | - Baoshan Wang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China
| | - Min Chen
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China; Dongying Institute, Shandong Normal University, No. 2 Kangyang Road, Dongying, 257000, China.
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Cui X, Tang M, Li L, Chang J, Yang X, Chang H, Zhou J, Liu M, Wang Y, Zhou Y, Sun F, Chen Z. Expression Patterns and Molecular Mechanisms Regulating Drought Tolerance of Soybean [ Glycine max (L.) Merr.] Conferred by Transcription Factor Gene GmNAC19. Int J Mol Sci 2024; 25:2396. [PMID: 38397076 PMCID: PMC10889163 DOI: 10.3390/ijms25042396] [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: 01/28/2024] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
NAC transcription factors are commonly involved in the plant response to drought stress. A transcriptome analysis of root samples of the soybean variety 'Jiyu47' under drought stress revealed the evidently up-regulated expression of GmNAC19, consistent with the expression pattern revealed by quantitative real-time PCR analysis. The overexpression of GmNAC19 enhanced drought tolerance in Saccharomyces cerevisiae INVSc1. The seed germination percentage and root growth of transgenic Arabidopsis thaliana were improved in comparison with those of the wild type, while the transgenic soybean composite line showed improved chlorophyll content. The altered contents of physiological and biochemical indices (i.e., soluble protein, soluble sugar, proline, and malondialdehyde) related to drought stress and the activities of three antioxidant enzymes (i.e., superoxide dismutase, peroxidase, and catalase) revealed enhanced drought tolerance in both transgenic Arabidopsis and soybean. The expressions of three genes (i.e., P5CS, OAT, and P5CR) involved in proline synthesis were decreased in the transgenic soybean hairy roots, while the expression of ProDH involved in the breakdown of proline was increased. This study revealed the molecular mechanisms underlying drought tolerance enhanced by GmNAC19 via regulation of the contents of soluble protein and soluble sugar and the activities of antioxidant enzymes, providing a candidate gene for the molecular breeding of drought-tolerant crop plants.
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Affiliation(s)
- Xiyan Cui
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Minghao Tang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Lei Li
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Jiageng Chang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Xiaoqin Yang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Hongli Chang
- Shaanxi Key Laboratory for Animal Conservation, School of Life Sciences, Northwest University, Xi’an 710069, China
| | - Jiayu Zhou
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Miao Liu
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Yan Wang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Ying Zhou
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Fengjie Sun
- Department of Biological Sciences, School of Science and Technology, Georgia Gwinnett College, Lawrenceville, GA 30043, USA
| | - Zhanyu Chen
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
- College of Agronomy, Jilin Agricultural University, Changchun 130118, China
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Geng A, Lian W, Wang Y, Liu M, Zhang Y, Wang X, Chen G. Molecular Mechanisms and Regulatory Pathways Underlying Drought Stress Response in Rice. Int J Mol Sci 2024; 25:1185. [PMID: 38256261 PMCID: PMC10817035 DOI: 10.3390/ijms25021185] [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: 12/24/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Rice is a staple food for 350 million people globally. Its yield thus affects global food security. Drought is a serious environmental factor affecting rice growth. Alleviating the inhibition of drought stress is thus an urgent challenge that should be solved to enhance rice growth and yield. This review details the effects of drought on rice morphology, physiology, biochemistry, and the genes associated with drought stress response, their biological functions, and molecular regulatory pathways. The review further highlights the main future research directions to collectively provide theoretical support and reference for improving drought stress adaptation mechanisms and breeding new drought-resistant rice varieties.
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Affiliation(s)
- Anjing Geng
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Wenli Lian
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Yihan Wang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Minghao Liu
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Yue Zhang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Xu Wang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Guang Chen
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
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Liu X, Zhou G, Chen S, Jia Z, Zhang S, He F, Ren M. Genome-wide analysis of the Tritipyrum NAC gene family and the response of TtNAC477 in salt tolerance. BMC PLANT BIOLOGY 2024; 24:40. [PMID: 38195389 PMCID: PMC10775630 DOI: 10.1186/s12870-023-04629-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 11/23/2023] [Indexed: 01/11/2024]
Abstract
NAC transcription factors are widely distributed in the plant kingdom and play an important role in the response to various abiotic stresses in plant species. Tritipyrum, an octoploid derived from hybridization of Triticum aestivum (AABBDD) and Thinopyrum elongatum (EE), is an important genetic resource for integrating the desirable traits of Th. elongatum into wheat. In this study, we investigated the tissue distribution and expression of Tritipyrum NAC genes in the whole genomes of T. aestivum and Th. elongatum after obtaining their complete genome sequences. Based on phylogenetic relationships, conserved motifs, gene synthesis, evolutionary analysis, and expression patterns, we identified and characterized 732 Tritipyrum NAC genes. These genes were divided into six main groups (A, B, C, D, E, and G) based on phylogenetic relationships and evolutionary studies, with members of these groups sharing the same motif composition. The 732 TtNAC genes are widely distributed across 28 chromosomes and include 110 duplicated genes. Gene synthesis analysis indicated that the NAC gene family may have a common ancestor. Transcriptome data and quantitative polymerase chain reaction (qPCR) expression profiles showed 68 TtNAC genes to be highly expressed in response to various salt stress and recovery treatments. Tel3E01T644900 (TtNAC477) was particularly sensitive to salt stress and belongs to the same clade as the salt tolerance genes ANAC019 and ANAC055 in Arabidopsis. Pearson correlation analysis identified 751 genes that correlated positively with expression of TtNAC477, and these genes are enriched in metabolic activities, cellular processes, stimulus responses, and biological regulation. TtNAC477 was found to be highly expressed in roots, stems, and leaves in response to salt stress, as confirmed by real-time PCR. These findings suggest that TtNAC477 is associated with salt tolerance in plants and might serve as a valuable exogenous gene for enhancing salt tolerance in wheat.
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Affiliation(s)
- Xiaojuan Liu
- Guizhou Subcenter of National Wheat Improvement Center, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Agronomy College, Guizhou University, Guiyang, 550025, China
| | - Guangyi Zhou
- Guizhou Subcenter of National Wheat Improvement Center, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Agronomy College, Guizhou University, Guiyang, 550025, China
| | - Songshu Chen
- Guizhou Subcenter of National Wheat Improvement Center, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Agronomy College, Guizhou University, Guiyang, 550025, China
| | - Zhenzhen Jia
- School of Life Sciences, Guizhou Normal University, Guiyang, 550025, China
| | - Suqin Zhang
- Guizhou Subcenter of National Wheat Improvement Center, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Agronomy College, Guizhou University, Guiyang, 550025, China
| | - Fang He
- Guizhou Subcenter of National Wheat Improvement Center, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Agronomy College, Guizhou University, Guiyang, 550025, China
| | - Mingjian Ren
- Guizhou Subcenter of National Wheat Improvement Center, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Agronomy College, Guizhou University, Guiyang, 550025, China.
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Jia Y, Zhao H, Niu Y, Wang Y. Long noncoding RNA from Betula platyphylla, BplncSIR1, confers salt tolerance by regulating BpNAC2 to mediate reactive oxygen species scavenging and stomatal movement. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:48-65. [PMID: 37697445 PMCID: PMC10754008 DOI: 10.1111/pbi.14164] [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: 03/09/2023] [Revised: 07/11/2023] [Accepted: 08/04/2023] [Indexed: 09/13/2023]
Abstract
Long noncoding RNAs (lncRNAs) play an important role in abiotic stress tolerance. However, their function in conferring abiotic stress tolerance is still unclear. Herein, we characterized the function of a salt-responsive nuclear lncRNA (BplncSIR1) from Betula platyphylla (birch). Birch plants overexpressing and knocking out for BplncSIR1 were generated. BplncSIR1 was found to improve salt tolerance by inducing antioxidant activity and stomatal closure, and also accelerate plant growth. Chromatin isolation by RNA purification (ChIRP) combined with RNA sequencing indicated that BplncSIR1 binds to the promoter of BpNAC2 (encoding NAC domain-containing protein 2) to activate its expression. Plants overexpressing and knocking out for BpNAC2 were generated. Consistent with that of BplncSIR1, overexpression of BpNAC2 also accelerated plant growth and conferred salt tolerance. In addition, BpNAC2 binds to different cis-acting elements, such as G-box and 'CCAAT' sequences, to regulate the genes involved in salt tolerance, resulting in reduced ROS accumulation and decreased water loss rate by stomatal closure. Taken together, BplncSIR1 serves as the regulator of BpNAC2 to induce its expression in response to salt stress, and activated BpNAC2 accelerates plant growth and improves salt tolerance. Therefore, BplncSIR1 might be a candidate gene for molecular breeding to cultivate plants with both a high growth rate and improved salt tolerance.
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Affiliation(s)
- Yaqi Jia
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Huimin Zhao
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Yani Niu
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Yucheng Wang
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
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Zhao F, Ma Q, Li Y, Jiang M, Zhou Z, Meng S, Peng Y, Zhang J, Ye N, Liu B. OsNAC2 regulates seed dormancy and germination in rice by inhibiting ABA catabolism. Biochem Biophys Res Commun 2023; 682:335-342. [PMID: 37837754 DOI: 10.1016/j.bbrc.2023.10.024] [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: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/16/2023]
Abstract
Seed dormancy and germination determine the beginning of the life cycle of plants, and the phytohormone ABA plays a crucial role in regulation of seed dormancy and germination. However, the upstream regulatory mechanism of ABA metabolism during dormancy releasing is still remain elusive. In this paper, we present a novel mechanism of OsNAC2 in controlling ABA metabolism and regulation of seed dormancy. OsNAC2 highly expressed during seed development and germination, and overexpression of OsNAC2 strengthened seed dormancy and suppressed germination. Moreover, exogenous phytohormone treatment showed that OsNAC2 acted upstream of GA signaling and downstream of ABA signaling. Additionally, overexpression of OsNAC2 inhibited ABA degradation and increased ABA content during early germination. Further molecular analysis revealed that OsNAC2 directly bound to the ABA metabolism genes promoter and inhibits their transcription in rice protoplasts. These finding could help us explain the genetic regulation mechanism of ABA metabolism during dormancy release and germination in rice.
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Affiliation(s)
- Fankai Zhao
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China; Key Laboratory of Crop Physiological and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China
| | - Qun Ma
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China; Agro-Tech Extension Center of Guangdong Province, Guangzhou, Guangdong, 510520, China
| | - Yingjiang Li
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China; Key Laboratory of Crop Physiological and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China
| | - Meihe Jiang
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China; Key Laboratory of Crop Physiological and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China
| | - Zhongjing Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, China
| | - Shuan Meng
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China; Key Laboratory of Crop Physiological and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China
| | - Yan Peng
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China; Key Laboratory of Crop Physiological and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China
| | - Jianhua Zhang
- Key Laboratory of Crop Physiological and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China; Department of Biology, Hong Kong Baptist University, Hong Kong, China; School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong, China.
| | - Nenghui Ye
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China; Key Laboratory of Crop Physiological and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China; Agro-Tech Extension Center of Guangdong Province, Guangzhou, Guangdong, 510520, China.
| | - Bohan Liu
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China; Key Laboratory of Crop Physiological and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China.
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Li J, Li X, Jia C, Liu D. Gene Cloning and Characterization of Transcription Factor FtNAC10 in Tartary Buckwheat ( Fagopyrum tataricum (L.) Gaertn.). Int J Mol Sci 2023; 24:16317. [PMID: 38003506 PMCID: PMC10671190 DOI: 10.3390/ijms242216317] [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: 09/07/2023] [Revised: 11/02/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
NAC transcription factors play a significant role in plant stress responses. In this study, an NAC transcription factor, with a CDS of 792 bp encoding 263 amino acids, was cloned from Fagopyrum tataricum (L.) Gaertn. (F. tataricum), a minor cereal crop, which is rich in flavonoids and highly stress resistant. The transcription factor was named FtNAC10 (NCBI accession number: MK614506.1) and characterized as a member of the NAP subgroup of NAC transcriptions factors. The gene exhibited a highly conserved N-terminal, encoding about 150 amino acids, and a highly specific C-terminal. The resulting protein was revealed to be hydrophilic, with strong transcriptional activation activity. FtNAC10 expression occurred in various F. tataricum tissues, most noticeably in the root, and was regulated differently under various stress treatments. The over-expression of FtNAC10 in transgenic Arabidopsis thaliana (A. thaliana) seeds inhibited germination, and the presence of FtNAC10 enhanced root elongation under saline and drought stress. According to phylogenetic analysis and previous reports, our experiments indicate that FtNAC10 may regulate the stress response or development of F. tataricum through ABA-signaling pathway, although the mechanism is not yet known. This study provides a reference for further analysis of the regulatory function of FtNAC10 and the mechanism that underlies stress responses in Tartary buckwheat.
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Affiliation(s)
- Jinghuan Li
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430070, China; (J.L.); (D.L.)
- Beijing Key Laboratory of Maize DNA Fingerprinting and Molecular Breeding, Maize Research Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- Department of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaohua Li
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430070, China; (J.L.); (D.L.)
| | - Caihua Jia
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
| | - Dahui Liu
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430070, China; (J.L.); (D.L.)
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14
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Qian Y, Xi Y, Xia L, Qiu Z, Liu L, Ma H. Membrane-Bound Transcription Factor ZmNAC074 Positively Regulates Abiotic Stress Tolerance in Transgenic Arabidopsis. Int J Mol Sci 2023; 24:16157. [PMID: 38003347 PMCID: PMC10671035 DOI: 10.3390/ijms242216157] [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: 10/17/2023] [Revised: 11/02/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Maize (Zea mays L.) is one of the most widely cultivated crops for humans, making a vital contribution to human nutrition and health. However, in recent years, due to the influence of external adverse environments, the yield and quality of maize have been seriously affected. NAC (NAM, ATAF1/2 and CUC2) transcription factors (TFs) are important plant-unique TFs, which are crucial for regulating the abiotic stress response of plants. Therefore, it is of great biological significance to explore the underlying regulatory function of plant NAC TFs under various abiotic stresses. In this study, wild-type and ZmNAC074-overexpressed transgenic Arabidopsis were used as experimental materials to dissect the stress-resistant function of ZmNAC074 in transgenic Arabidopsis at phenotypic, physiological and molecular levels. The analyses of seed germination rate, survival rate, phenotype, the content of chlorophyll, carotenoids, malondialdehyde (MDA), proline and other physiological indexes induced by distinct abiotic stress conditions showed that overexpression of ZmNAC074 could confer the enhanced resistance of salt, drought, and endoplasmic reticulum (ER) stress in transgenic Arabidopsis, indicating that ZmNAC074 plays an important regulatory role in plant response to abiotic stress, which provides an important theoretical foundation for further uncovering the molecular regulation mechanism of ZmNAC074 under abiotic stresses.
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Affiliation(s)
- Yexiong Qian
- Anhui Provincial Key Laboratory of Conservation and Exploitation of Important Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Yan Xi
- Anhui Provincial Key Laboratory of Conservation and Exploitation of Important Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Lingxue Xia
- Anhui Provincial Key Laboratory of Conservation and Exploitation of Important Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Ziling Qiu
- Anhui Provincial Key Laboratory of Conservation and Exploitation of Important Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Li Liu
- Anhui Provincial Key Laboratory of Conservation and Exploitation of Important Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Hui Ma
- Key Laboratory of Rice Genetic Breeding of Anhui Province, Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China
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Saimi G, Wang Z, Liusui Y, Guo Y, Huang G, Zhao H, Zhang J. The Functions of an NAC Transcription Factor, GhNAC2-A06, in Cotton Response to Drought Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:3755. [PMID: 37960109 PMCID: PMC10649604 DOI: 10.3390/plants12213755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/29/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023]
Abstract
Drought stress imposes severe constraints on crop growth and yield. The NAC transcription factors (TF) play a pivotal role in regulating plant stress responses. However, the biological functions and regulatory mechanisms of many cotton NACs have not been explored. In this study, we report the cloning and characterization of GhNAC2-A06, a gene encoding a typical cotton NAC TF. The expression of GhNAC2-A06 was induced by PEG treatment, drought stress, and ABA treatment. Furthermore, we investigated its function using the virus-induced gene silencing (VIGS) method. GhNAC2-A06 silenced plants exhibited a poorer growth status under drought stress conditions compared to the controls. The GhNAC2-A06 silenced cotton plants had a lower leaf relative water and chlorophyll content and a higher MDA content compared to the controls under the drought treatment. The levels of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) enzyme activity in the GhNAC2-A06 silenced plants were found to be lower compared to the controls when exposed to drought stress. Additionally, the downregulation of the drought stress-related genes, GhSAP12-D07, GhNCED1-A01, GhLEA14-A11, GhZAT10-D02, GhPROT2-A05, GhABF3-A03, GhABF2-D05, GhSAP3-D07, and GhCPK1-D04, was observed in the GhNAC2-A06 silenced cotton. Together, our research reveals that GhNAC2-A06 plays a role in the reaction of cotton to drought stress by affecting the expression of genes related to drought stress. The data obtained from this study lay the theoretical foundation for further in-depth research on the biological function and regulatory mechanisms of GhNAC2-A06.
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Affiliation(s)
| | | | | | | | | | - Huixin Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China; (G.S.); (Z.W.); (Y.L.); (Y.G.); (G.H.)
| | - Jingbo Zhang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China; (G.S.); (Z.W.); (Y.L.); (Y.G.); (G.H.)
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Hu Y, Li C, Zhou R, Song Y, Lv Z, Wang Q, Dong X, Liu S, Feng C, Zhou Y, Zeng X, Zhang L, Wang Z, Di H. The Transcription Factor ZmNAC89 Gene Is Involved in Salt Tolerance in Maize ( Zea mays L.). Int J Mol Sci 2023; 24:15099. [PMID: 37894780 PMCID: PMC10606073 DOI: 10.3390/ijms242015099] [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: 09/05/2023] [Revised: 10/03/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
The NAC gene family has transcription factors specific to plants, which are involved in development and stress response and adaptation. In this study, ZmNAC89, an NAC gene in maize that plays a role in saline-alkaline tolerance, was isolated and characterized. ZmNAC89 was localized in the nucleus and had transcriptional activation activity during in vitro experiments. The expression of ZmNAC89 was strongly upregulated under saline-alkaline, drought and ABA treatments. Overexpression of the ZmNAC89 gene in transgenic Arabidopsis and maize enhanced salt tolerance at the seedling stage. Differentially expressed genes (DEGs) were then confirmed via RNA-sequencing analysis with the transgenic maize line. GO analyses showed that oxidation-reduction process-regulated genes were involved in ZmNAC89-mediated salt-alkaline stress. ZmNAC89 may regulate maize saline-alkali tolerance through the REDOX pathway and ABA signal transduction pathway. From 140 inbred maize lines, 20 haplotypes and 16 SNPs were found in the coding region of the ZmNAC89 gene, including the excellent haplotype HAP20. These results contribute to a better understanding of the response mechanism of maize to salt-alkali stress and marker-assisted selection during maize breeding.
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Affiliation(s)
- Yingying Hu
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Chunxiang Li
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Runyu Zhou
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Yongfeng Song
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Zhichao Lv
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Qi Wang
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Xiaojie Dong
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
- Institute of Crop Resources Research, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
| | - Shan Liu
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Chenchen Feng
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Yu Zhou
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Xing Zeng
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Lin Zhang
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Zhenhua Wang
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
| | - Hong Di
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Engineering Technology Research Center of Maize Germplasm Resources Innovation on Cold land of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (Y.H.); (C.L.); (R.Z.); (Y.S.); (Z.L.); (Q.W.); (X.D.); (S.L.); (C.F.); (Y.Z.); (X.Z.); (L.Z.)
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Dong W, Tu J, Deng W, Zhang J, Xu Y, Gu A, An H, Fan K, Wang R, Zhang J, Kui L, Li X. Genome-wide identification of DUF506 gene family in Oryzasativa and expression profiling under abiotic stresses. PeerJ 2023; 11:e16168. [PMID: 37790624 PMCID: PMC10544316 DOI: 10.7717/peerj.16168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/03/2023] [Indexed: 10/05/2023] Open
Abstract
The domain of unknown function 560 (DUF560), also known as the PDDEXK_6 family, is a ubiquitous plant protein that has been confirmed to play critical roles in Arabidopsis root development as well as ABA and abiotic responses. However, genome-wide identification and expression pattern analysis in rice (Oryza sativa) still need to be improved. Based on the phylogenetic relationship, 10 OsDUF506 genes were identified and classified into four subfamilies. Segmental duplication was essential to the expansion of OsDUF506s, which were subjected to purifying selective pressure. Except for OsDUF50609 and OsDUF50610, the OsDUF506s shared colinear gene pairs with five monocot species, showing that they were conserved in evolution. Furthermore, the conserved domains, gene structures, SNPs distribution, and targeting miRNAs were systematically investigated. Massive cis-regulatory elements were discovered in promoter regions, implying that OsDUF506s may be important in hormone regulation and abiotic stress response. Therefore, we analyzed plant hormone-induced transcriptome data and performed qRT-PCR on eight OsDUF506s under drought, cold, and phosphorus-deficient stresses. The results revealed that most OsDUF506s respond to ABA and JA treatment, as well as drought and cold conditions. In conclusion, our findings provided insights into the evolution and function of OsDUF506s, which could benefit crop breeding in the future.
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Affiliation(s)
- Wei Dong
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
| | - Jian Tu
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
| | - Wei Deng
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
| | - Jianhua Zhang
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
| | - Yuran Xu
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
| | - Anyu Gu
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
| | - Hua An
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
| | - Kui Fan
- Yunnan Grain Industry Group Co., Ltd, Kunming, China
| | - Rui Wang
- Yunnan Grain Industry Group Co., Ltd, Kunming, China
| | | | - Limei Kui
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
| | - Xiaolin Li
- Yunnan Academy of Agricultural Sciences, Food Crops Research Institute, Kunming, China
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Geng L, Yu S, Zhang Y, Su L, Lu W, Zhu H, Jiang X. Transcription factor RcNAC091 enhances rose drought tolerance through the abscisic acid-dependent pathway. PLANT PHYSIOLOGY 2023; 193:1695-1712. [PMID: 37364582 DOI: 10.1093/plphys/kiad366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/25/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023]
Abstract
NAC (NAM, ATAF1,2, and CUC2) transcription factors (TFs) play critical roles in controlling plant growth, development, and abiotic stress responses. However, few studies have examined NAC proteins related to drought stress tolerance in rose (Rosa chinensis). Here, we identified a drought- and abscisic acid (ABA)-induced NAC TF, RcNAC091, that localizes to the nucleus and has transcriptional activation activity. Virus-induced silencing of RcNAC091 resulted in decreased drought stress tolerance, and RcNAC091 overexpression had the opposite effect. Specifically, ABA mediated RcNAC091-regulated drought tolerance. A transcriptomic comparison showed altered expression of genes involved in ABA signaling and oxidase metabolism in RcNAC091-silenced plants. We further confirmed that RcNAC091 directly targets the promoter of RcWRKY71 in vivo and in vitro. Moreover, RcWRKY71-slienced rose plants were not sensitive to both ABA and drought stress, whereas RcWRKY71-overexpressing plants were hypersensitive to ABA, which resulted in drought-tolerant phenotypes. The expression of ABA biosynthesis- and signaling-related genes was impaired in RcWRKY71-slienced plants, suggesting that RcWRKY71 might facilitate the ABA-dependent pathway. Therefore, our results show that RcWRKY71 is transcriptionally activated by RcNAC091, which positively modulates ABA signaling and drought responses. The results of this study provide insights into the roles of TFs as functional links between RcNAC091 and RcWRKY71 in priming resistance; our findings also have implications for the approaches to enhance the drought resistance of roses.
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Affiliation(s)
- Lifang Geng
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Shuang Yu
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Yichang Zhang
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Lin Su
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Wanpei Lu
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Hong Zhu
- College of Agronomy, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Xinqiang Jiang
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong 266109, China
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Fu C, Liu M. Genome-wide identification and molecular evolution of NAC gene family in Dendrobium nobile. FRONTIERS IN PLANT SCIENCE 2023; 14:1232804. [PMID: 37670854 PMCID: PMC10475575 DOI: 10.3389/fpls.2023.1232804] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 07/31/2023] [Indexed: 09/07/2023]
Abstract
NAC transcription factors are an important genes that regulate plant growth and development, and can regulate functions such as fruit ripening in plants. Based on genome data of Dendrobium nobile, the NAC gene family was identified and analyzed by bioinformatics methods. In this study, we identified 85 NAC genes in Dendrobium nobile genome, and systematically analyzed the NAC gene family. We found that they were distributed unevenly in the nineteen chromosomes. The amino acid length of D. nobile NAC gene family (DnoNACs) ranged from 80 to 1065, molecular weight ranged from 22.17 to 119.02 kD, and isoelectric point ranged from 4.61~9.26. Its promoter region contains multiple stress responsive elements, including light responsive, gibberellin-responsive, abscisic acid responsiveness, MeJA-responsiveness and drought-inducibility elements. Phylogenetic analysis indicates that the D. nobile NAC gene family is most closely related to Dendrobium catenatum and Dendrobium chrysotoxum. Analysis of SSR loci indicates that the fraction of mononucleotide repeats was the largest, as was the frequency of A/T. Non-coding RNA analysis showed that these 85 NAC genes contain 397 miRNAs. The collinearity analysis shows that 9 collinear locis were found on the chromosomes of D. nobile with Arabidopsis thaliana, and 75 collinear locis with D.chrysotoxum. QRT-PCR experiment under different salt concentration and temperature conditions verified the response mechanism of DnoNAC gene family under stress conditions. Most DnoNAC genes are sensitive to salt stress and temperature stress. The results of this study provide a reference for further understanding the function of NAC gene in D. nobile.
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Qi J, Wang H, Wu X, Noman M, Wen Y, Li D, Song F. Genome-wide characterization of the PLATZ gene family in watermelon (Citrullus lanatus L.) with putative functions in biotic and abiotic stress response. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107854. [PMID: 37356384 DOI: 10.1016/j.plaphy.2023.107854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/19/2023] [Accepted: 06/18/2023] [Indexed: 06/27/2023]
Abstract
Plant AT-rich sequence and zinc-binding (PLATZ) proteins are plant-specific transcription factors involved in growth, development, and stress responses. Here, we conducted a genome-wide characterization of the watermelon ClPLATZ family and examined its expression responsiveness to defense hormones and pathogen infection along with putative functions in biotic and abiotic stress responses. The watermelon genome contains 12 putative ClPLATZ genes, encoding proteins with a characteristic PLATZ domain, and their promoters contain various cis-elements related to plant growth, development, phytohormones and stress response. The ClPLATZ genes, except ClPLATZ6, are differentially expressed in response to defense hormones (e.g., salicylic acid and methyl jasmonate) and fungal infections caused by Fusarium oxysporum f. sp. niveum and Stagonosporopsis cucurbitacearum. Most ClPLATZ proteins interact with other proteins (viz., ClDP, ClRPT2a, and ClRPC53). Among ClPLATZ proteins, ClPLATZ8, 9, 10, and 11 are predominately localized in the nucleus. ClPLATZ3 and 8 positively, but ClPLATZ11 negatively regulate resistance against Pseudomonas syringe pv. tomato DC3000 in transgenic Arabidopsis lines. ClPLATZ8 and 11 positively regulate stress tolerance to NaCl and mannitol during seed germination in transgenic Arabidopsis. In conclusion, the characterization of the ClPLATZ family provides insights into the biological functions of ClPLATZ genes in growth, development, and stress response in watermelon. Further, the involvement of certain ClPLATZ genes in biotic and abiotic stress response in transgenic Arabidopsis suggests their potential application in engineering stress-tolerant crops.
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Affiliation(s)
- Jiahui Qi
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Hui Wang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Xinyi Wu
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Muhammad Noman
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Ya Wen
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Dayong Li
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Fengming Song
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China; State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
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Pooam M, El-Ballat EM, Jourdan N, Ali HM, Hano C, Ahmad M, El-Esawi MA. SNAC3 Transcription Factor Enhances Arsenic Stress Tolerance and Grain Yield in Rice ( Oryza sativa L.) through Regulating Physio-Biochemical Mechanisms, Stress-Responsive Genes, and Cryptochrome 1b. PLANTS (BASEL, SWITZERLAND) 2023; 12:2731. [PMID: 37514345 PMCID: PMC10383536 DOI: 10.3390/plants12142731] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/20/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023]
Abstract
Arsenic (As) is one of the toxic heavy metal pollutants found in the environment. An excess of As poses serious threats to plants and diminishes their growth and productivity. NAC transcription factors revealed a pivotal role in enhancing crops tolerance to different environmental stresses. The present study investigated, for the first time, the functional role of SNAC3 in boosting As stress tolerance and grain productivity in rice (Oryza sativa L.). Two SNAC3-overexpressing (SNAC3-OX) and two SNAC3-RNAi transgenic lines were created and validated. The wild-type and transgenic rice plants were exposed to different As stress levels (0, 25, and 50 µM). The results revealed that SNAC3 overexpression significantly improved rice tolerance to As stress and boosted grain yield traits. Under both levels of As stress (25 and 50 µM), SNAC3-OX rice lines exhibited significantly lower levels of oxidative stress biomarkers and OsCRY1b (cryptochrome 1b) expression, but they revealed increased levels of gas exchange characters, chlorophyll, osmolytes (soluble sugars, proteins, proline, phenols, and flavonoids), antioxidant enzymes (SOD, CAT, APX, and POD), and stress-tolerant genes expression (OsSOD-Cu/Zn, OsCATA, OsCATB, OsAPX2, OsLEA3, OsDREB2B, OsDREB2A, OsSNAC2, and OsSNAC1) in comparison to wild-type plants. By contrast, SNAC3 suppression (RNAi) reduced grain yield components and reversed the aforementioned measured physio-biochemical and molecular traits. Taken together, this study is the first to demonstrate that SNAC3 plays a vital role in boosting As stress resistance and grain productivity in rice through modulating antioxidants, photosynthesis, osmolyte accumulation, and stress-related genes expression, and may be a useful candidate for further genetic enhancement of stress resistance in many crops.
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Affiliation(s)
- Marootpong Pooam
- UMR CNRS 8256 (B2A), IBPS, Sorbonne Université, 75005 Paris, France
| | - Enas M El-Ballat
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Nathalie Jourdan
- UMR CNRS 8256 (B2A), IBPS, Sorbonne Université, 75005 Paris, France
| | - Hayssam M Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRAE USC1328, Campus Eure et Loir, Orleans University, 45067 Orleans, France
| | - Margaret Ahmad
- UMR CNRS 8256 (B2A), IBPS, Sorbonne Université, 75005 Paris, France
| | - Mohamed A El-Esawi
- UMR CNRS 8256 (B2A), IBPS, Sorbonne Université, 75005 Paris, France
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
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Zhang S, Ai J, Guo Y, Bai Y, Yao H, Wang F. Cloning and expression analysis of VrNAC13 gene in mung bean. Open Life Sci 2023; 18:20220627. [PMID: 37426623 PMCID: PMC10329274 DOI: 10.1515/biol-2022-0627] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/20/2023] [Accepted: 05/15/2023] [Indexed: 07/11/2023] Open
Abstract
To explore the role of NAC transcription factors in mung bean (Vigna ratiata), we here comprehensively analyzed VrNAC13 structure and expression patterns in the mung bean cultivar "Yulin No.1". The nucleotide sequence of VrNAC13 (GenBank accession number xp014518431.1) was determined by cloning and sequencing the gene. A predicted transcriptional activation domain in VrNAC13 was validated with a yeast one-hybrid assay. The composition and functional characteristics of VrNAC13 were analyzed using basic bioinformatics techniques, and the expression characteristics of VrNAC13 were analyzed via quantitative reverse transcription-PCR. The results showed that VrNAC13 was 1,068 bp in length and encoded a product of 355 amino acids. VrNAC13 was predicted to contain a NAM domain and to belong to the NAC transcription factor family. The protein was hydrophilic and contained several threonine phosphorylation sites. Phylogenetic analysis showed that VrNAC13 was highly similar in sequence to two Arabidopsis thaliana NAC proteins; we hypothesize that VrNAC13 may perform functions in mung bean similar to those of the two closely related proteins in Arabidopsis. Promoter analysis of VrNAC13 revealed cis-acting elements predicted to respond to abscisic acid (ABA), gibberellin, auxin, light, drought, low temperature, and other stressors. VrNAC13 was most highly expressed in the leaves and expressed at very low levels in the stem and root. It was experimentally determined to be induced by drought and ABA. Based on these results, VrNAC13 appears to regulate stress resistance in mung bean.
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Affiliation(s)
- Siyu Zhang
- School of Life Sciences, Yulin University, Yulin, P. R. China
| | - Jing Ai
- School of Life Sciences, Yulin University, Yulin, P. R. China
| | - Yaning Guo
- School of Life Sciences, Yulin University, Yulin, P. R. China
| | - Yu Bai
- School of Life Sciences, Yulin University, Yulin, P. R. China
| | - Han Yao
- School of Life Sciences, Yulin University, Yulin, P. R. China
| | - Fugang Wang
- School of Life Sciences, Yulin University, Yulin, P. R. China
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He H, Li Q, Fang L, Yang W, Xu F, Yan Y, Mao R. Comprehensive analysis of NAC transcription factors in Scutellaria baicalensis and their response to exogenous ABA and GA 3. Int J Biol Macromol 2023:125290. [PMID: 37302633 DOI: 10.1016/j.ijbiomac.2023.125290] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 06/13/2023]
Abstract
The NAC is a plant-specific family of transcription factor that plays important roles in various biological processes. Scutellaria baicalensis Georgi, belongs to the Lamiaceae family and has been widely used as a traditional herb with a wide range of pharmacological activities, including antitumor, heat-clearing, and detoxifying functions. However, no study on the NAC family in S. baicalensis has been conducted to date. In the present study, we identified 56 SbNAC genes using genomic and transcriptome analyses. These 56 SbNACs were unevenly distributed across nine chromosomes and were phylogenetically divided into six clusters. Cis-element analysis identified plant growth and development-, phytohormone-, light-, and stress-responsive elements were present in SbNAC genes promoter regions. Protein-protein interaction analysis was performed using Arabidopsis homologous proteins. Potential transcription factors, including bHLH, ERF, MYB, WRKY, and bZIP, were identified and constructed a regulatory network with SbNAC genes. The expression of 12 flavonoid biosynthetic genes was significantly upregulated with abscisic acid (ABA) and gibberellin (GA3) treatments. Eight SbNAC genes (SbNAC9/32/33/40/42/43/48/50) also exhibited notable variation with two phytohormone treatments, among which SbNAC9 and SbNAC43 showed the most significant variation and deserved further study. Additionally, SbNAC44 displayed a positive correlation with C4H3, PAL5, OMT3, and OMT6, while SbNAC25 had negatively correlated with OMT2, CHI, F6H2, and FNSII-2. This study constitutes the first analysis of SbNAC genes and lays the basis foundation for further functional studies of SbNAC genes family members, while it may also facilitate the genetic improvement of plants and breeding of elite S. baicalensis varieties.
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Affiliation(s)
- Huan He
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Qiuyue Li
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Liang Fang
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Wen Yang
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Feican Xu
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Yan Yan
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China; Shaanxi Key Laboratory of Chinese Jujube, Yan'an 716000, Shaanxi, China
| | - Renjun Mao
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China; Shaanxi Key Laboratory of Chinese Jujube, Yan'an 716000, Shaanxi, China.
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Li K, Zhai L, Fu S, Wu T, Zhang X, Xu X, Han Z, Wang Y. Genome-wide analysis of the MdZR gene family revealed MdZR2.2-induced salt and drought stress tolerance in apple rootstock. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023:111755. [PMID: 37290593 DOI: 10.1016/j.plantsci.2023.111755] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/30/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023]
Abstract
The DNL-type zinc finger protein constitutes a zinc ribbon protein (ZR) family, which belongs to a branch of zinc finger protein and plays an essential role in response to abiotic stress. Here, we identified six apple (Malus domestica) MdZR genes. Based on their phylogenetic relationship and gene structure, the MdZR genes were divided into three categories, including MdZR1, MdZR2, and MdZR3. Subcellular results showed that the MdZRs are located on the nuclear and membrane. The transcriptome data showed that MdZR2.2 is expressed in various tissues. The expression analysis results showed that MdZR2.2 was significantly upregulated under salt and drought treatments. Thus, we selected MdZR2.2 for further research. Overexpression of MdZR2.2 in apple callus improved their tolerance to drought and salt stress and ability to scavenge reactive oxygen species (ROS). In contrast, transgenic apple roots with silenced MdZR2.2 grew more poorly than the wild type when subjected to salt and drought stress, which reduced their ability to scavenge ROS. To our knowledge, this is the first study to analyze the MdZR protein family. This study identified a gene that responds to drought and salt stress. Our findings lay a foundation for a comprehensive analysis of the MdZR family members.
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Affiliation(s)
- Keting Li
- College of Horticulture, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology), Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R. China
| | - Longmei Zhai
- College of Horticulture, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology), Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R. China
| | - Sitong Fu
- College of Horticulture, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology), Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R. China
| | - Ting Wu
- College of Horticulture, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology), Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R. China
| | - Xinzhong Zhang
- College of Horticulture, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology), Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R. China
| | - Xuefeng Xu
- College of Horticulture, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology), Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R. China
| | - Zhenhai Han
- College of Horticulture, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology), Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R. China
| | - Yi Wang
- College of Horticulture, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology), Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R. China.
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25
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Saidi MN, Mahjoubi H, Yacoubi I. Transcriptome meta-analysis of abiotic stresses-responsive genes and identification of candidate transcription factors for broad stress tolerance in wheat. PROTOPLASMA 2023; 260:707-721. [PMID: 36063229 DOI: 10.1007/s00709-022-01807-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Under field conditions, wheat is subjected to single or multiple stress conditions. The elucidation of the molecular mechanism of stress response is a key step to identify candidate genes for stress resistance in plants. In this study, RNA-seq data analysis identified 17.324, 10.562, 5.510, and 8.653 differentially expressed genes (DEGs) under salt, drought, heat, and cold stress, respectively. Moreover, the comparison of DEGs from each stress revealed 2374 shared genes from which 40% showed highly conserved expression patterns. Moreover, co-expression network analysis and GO enrichment revealed co-expression modules enriched with genes involved in transcription regulation, protein kinase pathway, and genes responding to phytohormones or modulating hormone levels. The expression of 15 selected transcription factor encoding genes was analyzed under abiotic stresses and ABA treatment in durum wheat. The identified transcription factor genes are excellent candidates for genetic engineering of stress tolerance in wheat.
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Affiliation(s)
- Mohamed Najib Saidi
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, Road Sidi Mansour 6 km, P.O. Box 1177, 3018, Sfax, Tunisia.
| | - Habib Mahjoubi
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, Road Sidi Mansour 6 km, P.O. Box 1177, 3018, Sfax, Tunisia
| | - Ines Yacoubi
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, Road Sidi Mansour 6 km, P.O. Box 1177, 3018, Sfax, Tunisia
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Bi Y, Wang H, Yuan X, Yan Y, Li D, Song F. The NAC transcription factor ONAC083 negatively regulates rice immunity against Magnaporthe oryzae by directly activating transcription of the RING-H2 gene OsRFPH2-6. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:854-875. [PMID: 36308720 DOI: 10.1111/jipb.13399] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
NAC transcription factors (TFs) play critical roles in plant immunity by modulating the expression of downstream genes via binding to specific cis-elements in promoters. Here, we report the function and regulatory network of a pathogen- and defense phytohormone-inducible NAC TF gene, ONAC083, in rice (Oryza sativa) immunity. ONAC083 localizes to the nucleus and exhibits transcriptional activation activity that depends on its C-terminal region. Knockout of ONAC083 enhances rice immunity against Magnaporthe oryzae, strengthening pathogen-induced defense responses, and boosting chitin-induced pattern-triggered immunity (PTI), whereas ONAC083 overexpression has opposite effects. We identified ONAC083-binding sites in the promoters of 82 genes, and showed that ONAC083 specifically binds to a conserved element with the core sequence ACGCAA. ONAC083 activated the transcription of the genes OsRFPH2-6, OsTrx1, and OsPUP4 by directly binding to the ACGCAA element. OsRFPH2-6, encoding a RING-H2 protein with an N-terminal transmembrane region and a C-terminal typical RING domain, negatively regulated rice immunity against M. oryzae and chitin-triggered PTI. These data demonstrate that ONAC083 negatively contributes to rice immunity against M. oryzae by directly activating the transcription of OsRFPH2-6 through the ACGCAA element in its promoter. Overall, our study provides new insight into the molecular regulatory network of NAC TFs in rice immunity.
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Affiliation(s)
- Yan Bi
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Hui Wang
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xi Yuan
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Yuqing Yan
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Dayong Li
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Fengming Song
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
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27
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Sun B, Li W, Ma Y, Yu T, Huang W, Ding J, Yu H, Jiang L, Zhang J, Lv S, Yang J, Yan S, Liu B, Liu Q. OsGLP3-7 positively regulates rice immune response by activating hydrogen peroxide, jasmonic acid, and phytoalexin metabolic pathways. MOLECULAR PLANT PATHOLOGY 2023; 24:248-261. [PMID: 36626582 PMCID: PMC9923394 DOI: 10.1111/mpp.13294] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/06/2022] [Accepted: 12/11/2022] [Indexed: 05/26/2023]
Abstract
Although germin-like proteins (GLPs) have been demonstrated to participate in plant biotic stress responses, their specific functions in rice disease resistance are still largely unknown. Here, we report the identification and characterization of OsGLP3-7, a member of the GLP family in rice. Expression of OsGLP3-7 was significantly induced by pathogen infection, jasmonic acid (JA) treatment, and hydrogen peroxide (H2 O2 ) treatment. OsGLP3-7 was highly expressed in leaves and sublocalized in the cytoplasm. Overexpression of OsGLP3-7 increased plant resistance to leaf blast, panicle blast, and bacterial blight, whereas disease resistance in OsGLP3-7 RNAi silenced plants was remarkably compromised, suggesting this gene is a positive regulator of disease resistance in rice. Further analysis showed that OsGLP3-7 has superoxide dismutase (SOD) activity and can influence the accumulation of H2 O2 in transgenic plants. Many genes involved in JA and phytoalexin biosynthesis were strongly induced, accompanied with elevated levels of JA and phytoalexins in OsGLP3-7-overexpressing plants, while expression of these genes was significantly suppressed and the levels of JA and phytoalexins were reduced in OsGLP3-7 RNAi plants compared with control plants, both before and after pathogen inoculation. Moreover, we showed that OsGLP3-7-dependent phytoalexin accumulation may, at least partially, be attributed to the elevated JA levels observed after pathogen infection. Taken together, our results indicate that OsGLP3-7 positively regulates rice disease resistance by activating JA and phytoalexin metabolic pathways, thus providing novel insights into the disease resistance mechanisms conferred by GLPs in rice.
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Affiliation(s)
- Bingrui Sun
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Wenyan Li
- Guangdong Key Laboratory for Crop Germplasm Resources Preservation and UtilizationAgro‐Biological Gene Research Center, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Yamei Ma
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Ting Yu
- Guangdong Key Laboratory for Crop Germplasm Resources Preservation and UtilizationAgro‐Biological Gene Research Center, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Wenjie Huang
- Guangdong Key Laboratory for Crop Germplasm Resources Preservation and UtilizationAgro‐Biological Gene Research Center, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Jierong Ding
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Hang Yu
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Liqun Jiang
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Jing Zhang
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Shuwei Lv
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Jianyuan Yang
- Guangdong Key Laboratory of New Technology in Plant ProtectionPlant Protection Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Shijuan Yan
- Guangdong Key Laboratory for Crop Germplasm Resources Preservation and UtilizationAgro‐Biological Gene Research Center, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Bin Liu
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Qing Liu
- Guangdong Key Laboratory of New Technology in Rice Breeding, Rice Engineering LaboratoryRice Research Institute, Guangdong Academy of Agricultural SciencesGuangzhouChina
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28
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Huang X, Qiu X, Wang Y, Abubakar AS, Chen P, Chen J, Chen K, Yu C, Wang X, Gao G, Zhu A. Genome-Wide Investigation of the NAC Transcription Factor Family in Apocynum venetum Revealed Their Synergistic Roles in Abiotic Stress Response and Trehalose Metabolism. Int J Mol Sci 2023; 24:ijms24054578. [PMID: 36902009 PMCID: PMC10003206 DOI: 10.3390/ijms24054578] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/02/2023] Open
Abstract
NAC (NAM, ATAF1/2, and CUC2) transcription factors (TFs) are one of the most prominent plant-specific TF families and play essential roles in plant growth, development and adaptation to abiotic stress. Although the NAC gene family has been extensively characterized in many species, systematic analysis is still relatively lacking in Apocynum venetum (A. venetum). In this study, 74 AvNAC proteins were identified from the A. venetum genome and were classified into 16 subgroups. This classification was consistently supported by their gene structures, conserved motifs and subcellular localizations. Nucleotide substitution analysis (Ka/Ks) showed the AvNACs to be under the influence of strong purifying selection, and segmental duplication events were found to play the dominant roles in the AvNAC TF family expansion. Cis-elements analysis demonstrated that the light-, stress-, and phytohormone-responsive elements being dominant in the AvNAC promoters, and potential TFs including Dof, BBR-BPC, ERF and MIKC_MADS were visualized in the TF regulatory network. Among these AvNACs, AvNAC58 and AvNAC69 exhibited significant differential expression in response to drought and salt stresses. The protein interaction prediction further confirmed their potential roles in the trehalose metabolism pathway with respect to drought and salt resistance. This study provides a reference for further understanding the functional characteristics of NAC genes in the stress-response mechanism and development of A. venetum.
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Affiliation(s)
- Xiaoyu Huang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
| | - Xiaojun Qiu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
| | - Yue Wang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
| | - Aminu Shehu Abubakar
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
- Department of Agronomy, Bayero University Kano, Kano PMB 3011, Nigeria
| | - Ping Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
| | - Jikang Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
| | - Kunmei Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
| | - Chunming Yu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
| | - Xiaofei Wang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
| | - Gang Gao
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
- National Breeding Center for Bast Fiber Crops, Changsha 410221, China
- Key Laboratory of Genetic Breeding and Microbial Processing for Bast Fiber Product of Hunan Province, Changsha 410221, China
- Correspondence: (G.G.); (A.Z.); Tel.: +86-0731-8899-8511 (G.G.); +86-0731-8899-8586 (A.Z.)
| | - Aiguo Zhu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China
- National Breeding Center for Bast Fiber Crops, Changsha 410221, China
- Key Laboratory of Genetic Breeding and Microbial Processing for Bast Fiber Product of Hunan Province, Changsha 410221, China
- Correspondence: (G.G.); (A.Z.); Tel.: +86-0731-8899-8511 (G.G.); +86-0731-8899-8586 (A.Z.)
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29
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Xia L, Sun S, Han B, Yang X. NAC domain transcription factor gene GhNAC3 confers drought tolerance in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 195:114-123. [PMID: 36634506 DOI: 10.1016/j.plaphy.2023.01.005] [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: 10/30/2022] [Revised: 12/24/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
Abiotic stress seriously affects the growth, yield, and fiber quality of cotton. It is of great importance to cultivate drought-resistant and salt-tolerant cotton. NAC (NAM, ATAF1/2, and CUC2) is a plant-specific transcription factor, which is widely involved in the response to abiotic stress. Here, we discovered the GhNAC3 gene isolated from the expression profile of drought stress in cotton and verified its functions in cotton. First, GhNAC3 was strongly induced expression by drought and salt stresses. Gene structure analysis revealed that GhNAC3 had a conserved NAC domain and was homologous to several stress-related NAC transcription factors gene of Arabidopsis. Subcellular localization and transcriptional activation assays revealed that GhNAC3 was a nuclear protein with a C-terminal transcriptional activation domain. Overexpression of GhNAC3 enhanced Arabidopsis tolerance to drought stress with reduced sensitivity to ABA, characterized by increased germination and cotyledon rates under drought stress, and promoted root elongation. VIGS silencing of GhNAC3 reduced cotton tolerance to drought stress as indicated by the low water content of the leaves under drought treatment, significantly faster water loss and lower ABA content in detached leaves, along with the accumulation of more hydrogen peroxide (H2O2) and malondialdehyde (MDA). In conclusion, GhNAC3 plays an important role in the abiotic stress of cotton, which might have great application potential in molecular breeding of cotton varieties with drought resistance.
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Affiliation(s)
- Linjie Xia
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Simin Sun
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Bei Han
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Xiyan Yang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China; Hubei Hongshan Laboratory, Wuhan, China.
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30
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Jin X, Zheng Y, Wang J, Chen W, Yang Z, Chen Y, Yang Y, Lu G, Sun B. SbNAC9 Improves Drought Tolerance by Enhancing Scavenging Ability of Reactive Oxygen Species and Activating Stress-Responsive Genes of Sorghum. Int J Mol Sci 2023; 24:ijms24032401. [PMID: 36768724 PMCID: PMC9917103 DOI: 10.3390/ijms24032401] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/27/2023] Open
Abstract
Drought stress severely threatens the yield of cereal crops. Therefore, understanding the molecular mechanism of drought stress response of plants is crucial for developing drought-tolerant cultivars. NAC transcription factors (TFs) play important roles in abiotic stress of plants, but the functions of NAC TFs in sorghum are largely unknown. Here, we characterized a sorghum NAC gene, SbNAC9, and found that SbNAC9 can be highly induced by polyethylene glycol (PEG)-simulated dehydration treatments. We therefore investigated the function of SbNAC9 in drought stress response. Sorghum seedlings overexpressing SbNAC9 showed enhanced drought-stress tolerance with higher chlorophyll content and photochemical efficiency of PSII, stronger root systems, and higher reactive oxygen species (ROS) scavenging capability than wild-type. In contrast, sorghum seedlings with silenced SbNAC9 by virus-induced gene silencing (VIGS) showed weakened drought stress tolerance. Furthermore, SbNAC9 can directly activate a putative peroxidase gene SbC5YQ75 and a putative ABA biosynthesis gene SbNCED3. Silencing SbC5YQ75 and SbNCED3 led to compromised drought tolerance and reduced ABA content of sorghum seedlings, respectively. Therefore, our findings revealed the important role of SbNAC9 in response to drought stress in sorghum and may shed light on genetic improvement of other crop species under drought-stress conditions.
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Affiliation(s)
| | | | | | | | | | | | | | - Guihua Lu
- Correspondence: (G.L.); (B.S.); Tel.: +86-13805172133 (G.L.); +86-25-89681986 (B.S.)
| | - Bo Sun
- Correspondence: (G.L.); (B.S.); Tel.: +86-13805172133 (G.L.); +86-25-89681986 (B.S.)
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31
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Ding N, Zhao Y, Wang W, Liu X, Shi W, Zhang D, Chen J, Ma S, Sun Q, Wang T, Lu M. Transcriptome analysis in contrasting maize inbred lines and functional analysis of five maize NAC genes under drought stress treatment. FRONTIERS IN PLANT SCIENCE 2023; 13:1097719. [PMID: 36743547 PMCID: PMC9892906 DOI: 10.3389/fpls.2022.1097719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 12/21/2022] [Indexed: 06/18/2023]
Abstract
Drought substantially influences crop growth and development. NAC (NAM, ATAF1/2, and CUC2) transcription factors (TFs) have received much attention for their critical roles in drought stress responses. To explore the maize NAC genes in response to drought stress, the transcriptome sequencing data of NAC TFs in two maize inbred lines, the drought tolerance line H082183 and the sensitive line Lv28, were used to screen the differentially expressed genes (DEGs). There were 129 maize NAC protein-coding genes identified, of which 15 and 20 NAC genes were differentially expressed between the two genotypes under MD and SD treatments, respectively. Meanwhile, the phylogenetic relationship of 152 non-redundant NAC family TFs in maize was generated. The maize NAC family proteins were grouped into 13 distinct subfamilies. Five drought stress-responsive NAC family members, which were designed as ZmNAP, ZmNAC19, ZmNAC4, ZmJUB1(JUBGBRUNNEN1), and ZmNAC87, were selected for further study. The expression of ZmNAP, ZmNAC19, ZmNAC4, ZmJUB1, and ZmNAC87 were significantly induced by drought, dehydration, polyethylene glycol (PEG) stress, and abscisic acid (ABA) treatments. The overexpressing Arabidopsis of these five NAC genes was generated for functional characterization, respectively. Under different concentrations of NaCl, D-mannitol stress, and ABA treatments, the sensitivity of ZmNAP-, ZmNAC19-, ZmNAC4-, ZmJUB1-, and ZmNAC87-overexpressing lines was significantly increased at the germination stage compared to the wild-type lines. The overexpression of these five NAC members significantly improved the drought stress tolerance in transgenic Arabidopsis. Yeast two-hybrid screening analysis revealed that ZmNAP may cooperatively interact with 11 proteins including ZmNAC19 to activate the drought stress response. The above results inferred that ZmNAP, ZmNAC19, ZmNAC4, ZmJUB1, and ZmNAC87 may play important roles in the plant response to drought stress and may be useful in bioengineering breeding and drought tolerance improvement.
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Affiliation(s)
- Ning Ding
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Ying Zhao
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Weixiang Wang
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Xuyang Liu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/the National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Beijing, China
| | - Wentong Shi
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Dengfeng Zhang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/the National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Beijing, China
| | - Jiajie Chen
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Shuo Ma
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Qingpeng Sun
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Tianyu Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences/the National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Beijing, China
| | - Min Lu
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
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Lu S, Chen Y, Wang S, Han B, Zhao C, Xue P, Zhang Y, Fang H, Wang B, Cao Y. Combined metabolomic and transcriptomic analysis reveals key components of OsCIPK17 overexpression improves drought tolerance in rice. FRONTIERS IN PLANT SCIENCE 2023; 13:1043757. [PMID: 36699859 PMCID: PMC9868928 DOI: 10.3389/fpls.2022.1043757] [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: 09/14/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Oryza Sativa is one of the most important food crops in China, which is easily affected by drought during its growth and development. As a member of the calcium signaling pathway, CBL-interacting protein kinase (CIPK) plays an important role in plant growth and development as well as environmental stress. However, there is no report on the function and mechanism of OsCIPK17 in rice drought resistance. We combined transcriptional and metabonomic analysis to clarify the specific mechanism of OsCIPK17 in response to rice drought tolerance. The results showed that OsCIPK17 improved drought resistance of rice by regulating deep roots under drought stress; Response to drought by regulating the energy metabolism pathway and controlling the accumulation of citric acid in the tricarboxylic acid (TCA) cycle; Our exogenous experiments also proved that OsCIPK17 responds to citric acid, and this process involves the auxin metabolism pathway; Exogenous citric acid can improve the drought resistance of overexpression plants. Our research reveals that OsCIPK17 positively regulates rice drought resistance and participates in the accumulation of citric acid in the TCA cycle, providing new insights for rice drought resistance.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Baohua Wang
- *Correspondence: Baohua Wang, ; Yunying Cao,
| | - Yunying Cao
- *Correspondence: Baohua Wang, ; Yunying Cao,
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Meng X, Liu S, Zhang C, He J, Ma D, Wang X, Dong T, Guo F, Cai J, Long T, Li Z, Zhu M. The unique sweet potato NAC transcription factor IbNAC3 modulates combined salt and drought stresses. PLANT PHYSIOLOGY 2023; 191:747-771. [PMID: 36315103 PMCID: PMC9806649 DOI: 10.1093/plphys/kiac508] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Plants often simultaneously experience combined stresses rather than a single stress, causing more serious damage, but the underlying mechanisms remain unknown. Here, we identified the stress-induced IbNAC3 from sweet potato (Ipomoea batatas) as a nucleus-localized transcription activator. IbNAC3 contains a unique activation domain whose MKD sequence confers transactivation activities to multiple other TFs and is essential for the activated expression of downstream target genes. Ectopic expression of IbNAC3 conferred tolerance to single and combined salt and drought stresses in Arabidopsis (Arabidopsis thaliana), and a group of NAM, ATAF1/2, and CUC2 (NAC) TFs, including ANAC011, ANAC072, ANAC083, ANAC100, and NAP, interacted with IbNAC3, and the specific domains responsible for each interaction varied. Intriguingly, IbNAC3 repressed the interaction among the five NACs, and knockout or mutation of ANAC011 and ANAC072 dramatically impaired combined stress tolerance. IbNAC3-ANAC072 and IbNAC3-NAP modules synergistically activated the MICROTUBULE-RELATED E3 LIGASE57 (MREL57) gene. Consistently, mutation of MREL57 and overexpression of WAVE-DAM-PENED2-LIKE7, encoding a target protein of MREL57, both remarkably impaired combined stress tolerance. Moreover, transgenic plants displayed abscisic acid (ABA) hyposensitivity by directly promoting the transcription of ENHANCED RESPONSE TO ABA 1, a key negative regulator of ABA signaling. The data unravel the unique IbNAC3 TF functions as a pivotal component in combined stress tolerance by integrating multiple regulatory events and ubiquitin pathways, which is essential for developing high-tolerant plants in natural environments.
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Affiliation(s)
- Xiaoqing Meng
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Siyuan Liu
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Chengbin Zhang
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Junna He
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Daifu Ma
- Jiangsu Xuzhou Sweetpotato Research Center, Chinese Academy of Agricultural Sciences (CAAS), Xuzhou, 221131, China
| | - Xin Wang
- Jiangsu Xuzhou Sweetpotato Research Center, Chinese Academy of Agricultural Sciences (CAAS), Xuzhou, 221131, China
| | - Tingting Dong
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Fen Guo
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Jing Cai
- Department of Applied Biology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, South Korea
| | - Tiandan Long
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zongyun Li
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Mingku Zhu
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
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Li Y, Han H, Fu M, Zhou X, Ye J, Xu F, Zhang W, Liao Y, Yang X. Genome-wide identification and expression analysis of NAC family genes in Ginkgo biloba L. PLANT BIOLOGY (STUTTGART, GERMANY) 2023; 25:107-118. [PMID: 36377299 DOI: 10.1111/plb.13486] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
NAC (NAM, ATAF, CUC2) transcription factors constitute one of the largest families of plant-specific transcription factors with important roles in plant growth and development and in biotic and abiotic stresses. The physicochemical properties, gene structure, cis-acting elements and expression patterns of NAC transcription factors in Ginkgo biloba were analysed using bioinformatics, and expression of this gene family was analysed via quantitative reverse transcription PCR. The family of G. biloba NAC transcription factors had 50 members, distributed on 12 chromosomes and divided into 11 groups. Members in the same group share a similar gene structure and motif distribution. Transcriptome data analysis of G. biloba showed that 35 genes were expressed in eight tissues. Correlation analysis suggested that GbNAC007 and GNAC008 might be involved in flavonoid biosynthesis. Expression levels of 12 GbNACs under cold, het, and salt stresses were analysed. Results indicate that NAC transcription factors play an important role in response to abiotic stresses. This study provides a reference for the functional analysis of the G. biloba family of NAC transcription factors, as well as a resource for studies on the involvement of this family in responses to abiotic stresses and flavonoid biosynthesis.
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Affiliation(s)
- Y Li
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | - H Han
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | - M Fu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | - X Zhou
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | - J Ye
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | - F Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | - W Zhang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | - Y Liao
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
| | - X Yang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China
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Meng L, Chen S, Li D, Huang M, Zhu S. Genome-Wide Characterization and Evolutionary Expansion of Poplar NAC Transcription Factors and Their Tissue-Specific Expression Profiles under Drought. Int J Mol Sci 2022; 24:ijms24010253. [PMID: 36613699 PMCID: PMC9820422 DOI: 10.3390/ijms24010253] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
The NAC (NAM, ATAF1/2 and CUC2) is a large gene family of plant-specific transcription factors that play a pivotal role in various physiological processes and abiotic stresses. Due to the lack of genome-wide characterization, intraspecific and interspecific synteny, and drought-responsive expression pattern of NAC genes in poplar, the functional characterization of drought-related NAC genes have been scarcely reported in Populus species. Here, we identified a total of 170 NAC domain-containing genes in the P. trichocarpa genome, 169 of which were unevenly distributed on its nineteen chromosomes. These NAC genes were phylogenetically divided into twenty subgroups, some of which exhibited a similar pattern of exon-intron architecture. The synteny and Ka/Ks analysis indicated that the expansion of NAC genes in poplar was mainly due to gene duplication events occurring before and after the divergence of Populus and Salix. Ten PdNAC (P. deltoids × P. euramericana cv.'Nanlin895') genes were randomly selected and cloned. Their drought-responsive expression profiles showed a tissue-specific pattern. The transcription factor PdNAC013 was verified to be localized in the nucleus. Our research results provide genomic information for the expansion of NAC genes in the poplar genome, and for further characterizing putative poplar NAC genes associated with water-deficit.
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Affiliation(s)
- Lu Meng
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Siyuan Chen
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Dawei Li
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Minren Huang
- Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education of China, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Sheng Zhu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
- Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education of China, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
- Correspondence: or
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Morais ERDC, de Medeiros NMC, da Silva FL, de Sousa IAL, de Oliveira IGB, Meneses CHSG, Scortecci KC. Redox homeostasis at SAM: a new role of HINT protein. PLANTA 2022; 257:12. [PMID: 36520227 DOI: 10.1007/s00425-022-04044-5] [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: 12/20/2021] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
ScHINT1 was identified at sugarcane SAM using subtractive libraries. Here, by bioinformatic tools, two-hybrid approach, and biochemical assays, we proposed that its role might be associated to control redox homeostasis. Such control is important for plant development and flowering transition, and this is ensured with some protein partners such as PAL and SBT that interact with ScHINT1. The shoot apical meristem transition from vegetative to reproductive is a crucial step for plants. In sugarcane (Saccharum spp.), this process is not well known, and it has an important impact on production due to field reduction. In view of this, ScHINT1 (Sugarcane HISTIDINE TRIAD NUCLEOTIDE-BINDING PROTEIN) was identified previously by subtractive cDNA libraries using Shoot Apical Meristem (SAM) by our group. This protein is a member of the HIT superfamily that was composed of hydrolase with an AMP site ligation. To better understand the role of ScHINT1 in sugarcane flowering, here its function in SAM was characterized using different approaches such as bioinformatics, two-hybrid assays, transgenic plants, and biochemical assays. ScHINT1 was conserved in plants, and it was grouped into four clades (HINT1, HINT2, HINT3, and HINT4). The 3D model proposed that ScHINT1 might be active as it was able to ligate to AMP subtract. Moreover, the two-hybrid approach identified two protein interactions: subtilase and phenylalanine ammonia-lyase. The evolutionary tree highlighted the relationships that each sequence has with specific subfamilies and different proteins. The 3D models constructed reveal structure conservation when compared with other PDB-related crystals, which indicates probable functional activity for the sugarcane models assessed. The interactome analysis showed a connection to different proteins that have antioxidative functions in apical meristems. Lastly, the transgenic plants with 35S::ScHINT1_AS (anti-sense orientation) produced more flowers than wild-type or 35S::ScHINT1_S (sense). Alpha-tocopherol and antioxidant enzymes measurement showed that their levels were higher in 35S::ScHINT_S plants than in 35S::ScHINT1_AS or wild-type plants. These results proposed that ScHINT1 might have an important role with other proteins in orchestrating this complex network for plant development and flowering.
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Affiliation(s)
- Emanoelly Roberta de Carvalho Morais
- Departamento de Biologia Celular e Genética - Centro de Biociências, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil
- Programa de Pós-Graduação em Bioquímica e Biologia Molecular, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil
| | - Nathalia Maira Cabral de Medeiros
- Departamento de Biologia Celular e Genética - Centro de Biociências, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil
- Programa de Pós-Graduação em Bioquímica e Biologia Molecular, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil
| | - Francinaldo Leite da Silva
- Departamento de Biologia Celular e Genética - Centro de Biociências, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil
| | - Isabel Andrade Lopes de Sousa
- Departamento de Biologia Celular e Genética - Centro de Biociências, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil
- Programa de Pós-Graduação em Bioquímica e Biologia Molecular, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil
| | - Izamara Gesiele Bezerra de Oliveira
- Departamento de Biologia - Centro de Ciências Biológicas e da Saúde/Programa de Pós-Graduação em Ciências Agrárias, Universidade Estadual da Paraíba, Rua Baraúnas, 351, Bairro Universitário, Campina Grande, PB, 58429-500, Brazil
| | - Carlos Henrique Salvino Gadelha Meneses
- Departamento de Biologia - Centro de Ciências Biológicas e da Saúde/Programa de Pós-Graduação em Ciências Agrárias, Universidade Estadual da Paraíba, Rua Baraúnas, 351, Bairro Universitário, Campina Grande, PB, 58429-500, Brazil
| | - Katia Castanho Scortecci
- Departamento de Biologia Celular e Genética - Centro de Biociências, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil.
- Programa de Pós-Graduação em Bioquímica e Biologia Molecular, Universidade Federal do Rio Grande do Norte, Campus Universitário UFRN, Bairro Lagoa Nova, Natal, RN, 59072-970, Brazil.
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Lu S, Jia Z, Meng X, Chen Y, Wang S, Fu C, Yang L, Zhou R, Wang B, Cao Y. Combined Metabolomic and Transcriptomic Analysis Reveals Allantoin Enhances Drought Tolerance in Rice. Int J Mol Sci 2022; 23:ijms232214172. [PMID: 36430648 PMCID: PMC9699107 DOI: 10.3390/ijms232214172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Drought is a misfortune for agriculture and human beings. The annual crop yield reduction caused by drought exceeds the sum of all pathogens. As one of the gatekeepers of China's "granary", rice is the most important to reveal the key drought tolerance factors in rice. Rice seedlings of Nipponbare (Oryza sativa L. ssp. Japonica) were subjected to simulated drought stress, and their root systems were analyzed for the non-targeted metabolome and strand-specific transcriptome. We found that both DEGs and metabolites were enriched in purine metabolism, and allantoin accumulated significantly in roots under drought stress. However, few studies on drought tolerance of exogenous allantoin in rice have been reported. We aimed to further determine whether allantoin can improve the drought tolerance of rice. Under the treatment of exogenous allantoin at different concentrations, the drought resistant metabolites of plants accumulated significantly, including proline and soluble sugar, and reactive oxygen species (ROS) decreased and reached a significant level in 100 μmol L-1. To this end, a follow-up study was identified in 100 μmol L-1 exogenous allantoin and found that exogenous allantoin improved the drought resistance of rice. At the gene level, under allantoin drought treatment, we found that genes of scavenge reactive oxygen species were significantly expressed, including peroxidase (POD), catalase (CATA), ascorbate peroxidase 8 (APX8) and respiratory burst oxidase homolog protein F (RbohF). This indicates that plants treated by allantoin have better ability to scavenge reactive oxygen species to resist drought. Alternative splicing analysis revealed a total of 427 differentially expressed alternative splicing events across 320 genes. The analysis of splicing factors showed that gene alternative splicing could be divided into many different subgroups and play a regulatory role in many aspects. Through further analysis, we restated the key genes and enzymes in the allantoin synthesis and catabolism pathway, and found that the expression of synthetase and hydrolase showed a downward trend. The pathway of uric acid to allantoin is completed by uric acid oxidase (UOX). To find out the key transcription factors that regulate the expression of this gene, we identified two highly related transcription factors OsERF059 and ONAC007 through correlation analysis. They may be the key for allantoin to enhance the drought resistance of rice.
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Affiliation(s)
- Shuai Lu
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Zichang Jia
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Xiangfeng Meng
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Yaoyu Chen
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Surong Wang
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Chaozhen Fu
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Lei Yang
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Rong Zhou
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Baohua Wang
- School of Life Sciences, Nantong University, Nantong 226019, China
- Correspondence: (B.W.); (Y.C.)
| | - Yunying Cao
- School of Life Sciences, Nantong University, Nantong 226019, China
- Correspondence: (B.W.); (Y.C.)
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Liu P, Wu X, Gong B, Lü G, Li J, Gao H. Review of the Mechanisms by Which Transcription Factors and Exogenous Substances Regulate ROS Metabolism under Abiotic Stress. Antioxidants (Basel) 2022; 11:2106. [PMID: 36358478 PMCID: PMC9686556 DOI: 10.3390/antiox11112106] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 10/03/2023] Open
Abstract
Reactive oxygen species (ROS) are signaling molecules that regulate many biological processes in plants. However, excess ROS induced by biotic and abiotic stresses can destroy biological macromolecules and cause oxidative damage to plants. As the global environment continues to deteriorate, plants inevitably experience abiotic stress. Therefore, in-depth exploration of ROS metabolism and an improved understanding of its regulatory mechanisms are of great importance for regulating cultivated plant growth and developing cultivars that are resilient to abiotic stresses. This review presents current research on the generation and scavenging of ROS in plants and summarizes recent progress in elucidating transcription factor-mediated regulation of ROS metabolism. Most importantly, the effects of applying exogenous substances on ROS metabolism and the potential regulatory mechanisms at play under abiotic stress are summarized. Given the important role of ROS in plants and other organisms, our findings provide insights for optimizing cultivation patterns and for improving plant stress tolerance and growth regulation.
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Affiliation(s)
- Peng Liu
- Key Laboratory of North China Water-Saving Irrigation Engineering, Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding 071000, China
- Institute of Vegetables Research, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Xiaolei Wu
- Key Laboratory of North China Water-Saving Irrigation Engineering, Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding 071000, China
| | - Binbin Gong
- Key Laboratory of North China Water-Saving Irrigation Engineering, Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding 071000, China
| | - Guiyun Lü
- Key Laboratory of North China Water-Saving Irrigation Engineering, Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding 071000, China
| | - Jingrui Li
- Key Laboratory of North China Water-Saving Irrigation Engineering, Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding 071000, China
| | - Hongbo Gao
- Key Laboratory of North China Water-Saving Irrigation Engineering, Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding 071000, China
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Molecular Characterization and Drought Resistance of GmNAC3 Transcription Factor in Glycine max (L.) Merr. Int J Mol Sci 2022; 23:ijms232012378. [PMID: 36293235 PMCID: PMC9604218 DOI: 10.3390/ijms232012378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/05/2022] [Accepted: 10/14/2022] [Indexed: 11/07/2022] Open
Abstract
Soybean transcription factor GmNAC plays important roles in plant resistance to environmental stresses. In this study, GmNAC3 was cloned in the drought tolerant soybean variety “Jiyu47”, with the molecular properties of GmNAC3 characterized to establish its candidacy as a NAC transcription factor. The yeast self-activation experiments revealed the transcriptional activation activity of GmNAC3, which was localized in the nucleus by the subcellular localization analysis. The highest expression of GmNAC3 was detected in roots in the podding stage of soybean, and in roots of soybean seedlings treated with 20% PEG6000 for 12 h, which was 16 times higher compared with the control. In the transgenic soybean hairy roots obtained by the Agrobacterium-mediated method treated with 20% PEG6000 for 12 h, the activities of superoxide dismutase, peroxidase, and catalase and the content of proline were increased, the malondialdehyde content was decreased, and the expressions of stress resistance-related genes (i.e., APX2, LEA14, 6PGDH, and P5CS) were up-regulated. These expression patterns were confirmed by transgenic Arabidopsis thaliana with the overexpression of GmNAC3. This study provided strong scientific evidence to support further investigation of the regulatory function of GmNAC3 in plant drought resistance and the molecular mechanisms regulating the plant response to environmental stresses.
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Identification of the NAC Transcription Factors and Their Function in ABA and Salinity Response in Nelumbo nucifera. Int J Mol Sci 2022; 23:ijms232012394. [PMID: 36293250 PMCID: PMC9604248 DOI: 10.3390/ijms232012394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 12/02/2022] Open
Abstract
Nelumbo nucifera Gaertn. is an important perennial aquatic herb that has high ornamental, edible, medicinal, and economic value, being widely distributed and used in China. The NAC superfamily (NAM, ATAF1/2, CUC2) plays critical roles in plant growth, development, and response to abiotic and biotic stresses. Though there have been a few reports about NAC genes in lotus, systematic analysis is still relatively lacking. The present study aimed to characterize all the NAC genes in the lotus and obtain better insights on the NnNACs in response to salt stress by depending on ABA signaling. Here, 97 NAC genes were identified by searching the whole lotus genome based on the raw HMM models of the conserved NAM domain and NAC domain. They were characterized by bioinformatics analysis and divided into 18 subgroups based on the phylogenetic tree. Cis-element analysis demonstrated that NAC genes are responsive to biotic and abiotic stresses, light, low temperature, and plant hormones. Meanwhile, NAC genes had tissue expression specificity. qRT-PCR analysis indicated that NAC genes could be upregulated or downregulated by NaCl treatment, ABA, and fluoridone. In addition, NAC016, NAC025, and NAC070, whose encoding genes were significantly induced by NaCl and ABA, were located in the nucleus. Further analysis showed the three NAC proteins had transcriptional activation capabilities. The co-expression network analysis reflected that NAC proteins may form complexes with other proteins to play a role together. Our study provides a theoretical basis for further research to be conducted on the regulatory mechanisms of salinity resistance in the lotus.
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Jiao P, Wei X, Jiang Z, Liu S, Guan S, Ma Y. ZmLBD2 a maize ( Zea mays L.) lateral organ boundaries domain (LBD) transcription factor enhances drought tolerance in transgenic Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2022; 13:1000149. [PMID: 36311096 PMCID: PMC9612921 DOI: 10.3389/fpls.2022.1000149] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Maize (Zea mays L.) is an annual gramineous herb and is among the world's most important crop species. Drought is the main factor contributing to maize yield reduction. The lateral organ boundaries domain (LBD) proteins belong to a class of higher-plant-specific transcription factors. LBD proteins usually include the highly conserved lateral organ boundaries (LOB) domains that play essential roles in plant growth and response to biotic stresses. However, few studies have addressed the biological functions of LBD genes associated with maize response to drought. Here we cloned the ZmLBD2 gene from maize and described its role in combating drought. Investigating ZmLBD2 subcellular localization, we show that it localizes to the cell nucleus and can specifically bind with inverted repeats of "GCGGCG". Under drought stress, Arabidopsis thaliana overexpressing ZmLBD2 performed better than the wild-type plants in terms of seed germination rates, root length, relative water content, fresh weight, chlorophyll content, proline content, and antioxidant enzyme content. Arabidopsis overexpressing ZmLBD2 contained less MDA, H2O2, and O 2 - than the wild-type plants. Our protein-protein interaction results indicate an interaction between the ZmLBD2 and ZmIAA5 genes. In conclusion, the ZmLBD2 gene positively regulates H2O2 homeostasis in plants, strengthening drought resistance.
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Affiliation(s)
- Peng Jiao
- College of Life Sciences, Jilin Agricultural University, Changchun, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, China
| | - Xiaotong Wei
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, China
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - Zhenzhong Jiang
- College of Life Sciences, Jilin Agricultural University, Changchun, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, China
| | - Siyan Liu
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, China
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - Shuyan Guan
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, China
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - Yiyong Ma
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, China
- College of Agronomy, Jilin Agricultural University, Changchun, China
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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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Gong F, Zhang T, Wang Z, Qi T, Lu Y, Liu Y, Zhao S, Liu R, Yi R, He J, Tu B, Zhang T, Zhang L, Hao M, Zheng Y, Liu D, Huang L, Wu B. Genome-Wide Survey and Functional Verification of the NAC Transcription Factor Family in Wild Emmer Wheat. Int J Mol Sci 2022; 23:ijms231911598. [PMID: 36232900 PMCID: PMC9569692 DOI: 10.3390/ijms231911598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/23/2022] [Accepted: 09/25/2022] [Indexed: 12/04/2022] Open
Abstract
The NAC transcription factor (TF) family is one of the largest TF families in plants, which has been widely reported in rice, maize and common wheat. However, the significance of the NAC TF family in wild emmer wheat (Triticum turgidum ssp. dicoccoides) is not yet well understood. In this study, a genome-wide investigation of NAC genes was conducted in the wild emmer genome and 249 NAC family members (TdNACs) were identified. The results showed that all of these genes contained NAM/NAC-conserved domains and most of them were predicted to be located on the nucleus. Phylogenetic analysis showed that these 249 TdNACs can be classified into seven clades, which are likely to be involved in the regulation of grain protein content, starch synthesis and response to biotic and abiotic stresses. Expression pattern analysis revealed that TdNACs were highly expressed in different wheat tissues such as grain, root, leaves and shoots. We found that TdNAC8470 was phylogenetically close to NAC genes that regulate either grain protein or starch accumulation. Overexpression of TdNAC8470 in rice showed increased grain starch concentration but decreased grain Fe, Zn and Mn contents compared with wild-type plants. Protein interaction analysis indicated that TdNAC8470 might interact with granule-bound starch synthase 1 (TdGBSS1) to regulate grain starch accumulation. Our work provides a comprehensive understanding of the NAC TFs family in wild emmer wheat and establishes the way for future functional analysis and genetic improvement of increasing grain starch content in wheat.
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Affiliation(s)
- Fangyi Gong
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Tian Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhe Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Tiangang Qi
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Yusen Lu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuhang Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Shuhong Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Ruiqing Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Rui Yi
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Jingshu He
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Bin Tu
- Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Tao Zhang
- Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Lianquan Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
| | - Ming Hao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Youliang Zheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Dengcai Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Lin Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence: (L.H.); (B.W.)
| | - Bihua Wu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence: (L.H.); (B.W.)
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OsABT Is Involved in Abscisic Acid Signaling Pathway and Salt Tolerance of Roots at the Rice Seedling Stage. Int J Mol Sci 2022; 23:ijms231810656. [PMID: 36142568 PMCID: PMC9504391 DOI: 10.3390/ijms231810656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/02/2022] [Accepted: 09/08/2022] [Indexed: 12/03/2022] Open
Abstract
Rice is a staple cereal crop worldwide, and increasing its yields is vital to ensuring global food security. Salinity is a major factor that affects rice yield. Therefore, it is necessary to investigate salt tolerance mechanisms in rice. Proteins containing WD40 repeats play important roles in eukaryotic development and environmental adaptation. Here, we showed that overexpression of OsABT, a gene encoding a WD40-repeat protein, enhanced salt tolerance in rice seedlings by regulating root activity, relative conductivity, malondialdehyde and H2O2 content, and O2•− production rate. Root ion concentrations indicated that OsABT overexpression lines could maintain lower Na+ and higher K+/Na+ ratios and upregulated expression of salt-related genes OsSOS1 and OsHAK5 compared with the wild-type (WT) Nipponbare plants. Furthermore, Overexpression of OsABT decreased the abscisic acid (ABA) content, while downregulating the ABA synthesis genes OsNCED3 and OsNCED4 and upregulating the ABA catabolic gene OsABA8ox2. The yeast two-hybrid and bimolecular fluorescence complementation analyses showed that OsABT interacted with the ABA receptor proteins OsPYL4, OsPYL10, and PP2C phosphatase OsABIL2. A transcriptome analysis revealed that the differentially expressed genes between OsABT overexpression lines and WT plants were enriched in plant hormone signal transduction, including ABA signaling pathway under salt stress. Thus, OsABT can improve the salt tolerance in rice seedling roots by inhibiting reactive oxygen species accumulation, thereby regulating the intracellular Na+/K+ balance, ABA content, and ABA signaling pathway.
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Transcription Factor CmNAC34 Regulated CmLCYB-Mediated β-Carotene Accumulation during Oriental Melon Fruit Ripening. Int J Mol Sci 2022; 23:ijms23179805. [PMID: 36077205 PMCID: PMC9455964 DOI: 10.3390/ijms23179805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 11/21/2022] Open
Abstract
Ripened oriental melon (Cucumis melo) with orange-colored flesh is rich in β-carotene. Lycopene β-cyclase (LCYB) is the synthetic enzyme that directly controls the massive accumulation of β-carotene. However, the regulatory mechanism underlying the CmLCYB-mediated β-carotene accumulation in oriental melon is fairly unknown. Here, we screened and identified a transcription factor, CmNAC34, by combining bioinformatics analysis and yeast one-hybrid screen with CmLCYB promoter. CmNAC34 was located in the nucleus and acted as a transcriptional activator. The expression profile of CmNAC34 was consistent with that of CmLCYB during the fruit ripening. Additionally, the transient overexpression of CmNAC34 in oriental melon fruit promoted the expression of CmLCYB and enhanced β-carotene concentration, while transient silence of CmNAC34 in fruit was an opposite trend, which indicated CmNAC34 could modulate CmLCYB-mediated β-carotene biosynthesis in oriental melon. Finally, the yeast one-hybrid (Y1H), electrophoretic mobility shift assay (EMSA), β-glucuronidase (GUS) analysis assay, and luciferase reporter (LUC) assay indicated that CmNAC34 could bind to the promoter of CmLCYB and positively regulated the CmLCYB transcription level. These findings suggested that CmNAC34 acted as an activator to regulate β-carotene accumulation by directly binding the promoter of CmLCYB, which provides new insight into the regulatory mechanism of carotenoid metabolism during the development and ripening of oriental melon.
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You C, Li C, Ma M, Tang W, Kou M, Yan H, Song W, Gao R, Wang X, Zhang Y, Li Q. A C2-Domain Abscisic Acid-Related Gene, IbCAR1, Positively Enhances Salt Tolerance in Sweet Potato (Ipomoea batatas (L.) Lam.). Int J Mol Sci 2022; 23:ijms23179680. [PMID: 36077077 PMCID: PMC9456122 DOI: 10.3390/ijms23179680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/18/2022] [Accepted: 08/23/2022] [Indexed: 11/18/2022] Open
Abstract
Plant C2-domain abscisic acid-related (CAR) protein family plays an important role in plant growth, abiotic stress responses, and defense regulation. In this study, we cloned the IbCAR1 by homologous cloning method from the transcriptomic data of Xuzishu8, which is a sweet potato cultivar with dark-purple flesh. This gene was expressed in all tissues of sweet potato, with the highest expression level in leaf tissue, and it could be induced by NaCl and ABA. Subcellular localization analyses indicated that IbCAR1 was localized in the nucleus and plasma membrane. The PI staining experiment revealed the distinctive root cell membrane integrity of overexpressed transgenic lines upon salt stress. Salt stress significantly increased the contents of proline, ABA, and the activity of superoxide dismutase (SOD), whereas the content of malondialdehyde (MDA) was decreased in overexpressed lines. On the contrary, RNA interference plants showed sensitivity to salt stress. Overexpression of IbCAR1 in sweet potatoes could improve the salt tolerance of plants, while the RNAi of IbCAR1 significantly increased sensitivity to salt stress in sweet potatoes. Meanwhile, the genes involved in ABA biosynthesis, stress response, and reactive oxygen species (ROS)-scavenging system were upregulated in overexpressed lines under salt stress. Taken together, these results demonstrated that IbCAR1 plays a positive role in salt tolerance by relying on the ABA signal transduction pathway, activating the ROS-scavenging system in sweet potatoes.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Qiang Li
- Correspondence: ; Tel.: +86-0516-8218-9203
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47
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Du X, Su M, Jiao Y, Xu S, Song J, Wang H, Li Q. A Transcription Factor SlNAC10 Gene of Suaeda liaotungensis Regulates Proline Synthesis and Enhances Salt and Drought Tolerance. Int J Mol Sci 2022; 23:ijms23179625. [PMID: 36077020 PMCID: PMC9455740 DOI: 10.3390/ijms23179625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 12/02/2022] Open
Abstract
The NAC (NAM, ATAF1/2, and CUC2) transcription factors are one of the largest families of transcription factors in plants and play an important role in plant development and the response to adversity. In this study, we cloned a new NAC gene, SlNAC10, from the halophyte Suaeda liaotungensis K. The gene has a total length of 1584 bp including a complete ORF of 1107 bp that encodes 369 amino acids. The SlNAC10-GFP fusion protein is located in the nucleus and SlNAC10 has a transcription activation structural domain at the C-terminus. We studied the expression characteristics of SlNAC10 and found that it was highest in the leaves of S. liaotungensis and induced by drought, salt, cold, and abscisic acid (ABA). To analyze the function of SlNAC10 in plants, we obtained SlNAC10 transgenic Arabidopsis. The growth characteristics and physiological indicators of transgenic Arabidopsis were measured under salt and drought stress. The transgenic Arabidopsis showed obvious advantages in the root length and survival rate; chlorophyll fluorescence levels; and the antioxidant enzyme superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities, and the proline content was higher than that of the wild-type (WT) Arabidopsis, whereas the relative electrolyte leakage and malondialdehyde (MDA) content were lower than those of the wild-type Arabidopsis. We explored the regulatory role of SlNAC10 on proline synthesis-related enzyme genes and found that SlNAC10 binds to the AtP5CS1, AtP5CS2, and AtP5CR promoters and regulates their downstream gene transcription. To sum up, SlNAC10 as a transcription factor improves salt and drought tolerance in plants possibly by regulating proline synthesis.
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48
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Geng W, Wang Y, Zhang J, Liu Z, Chen X, Qin L, Yang L, Tang H. Genome-wide identification and expression analyses of late embryogenesis abundant (LEA) gene family in tobacco (Nicotiana tabacum L.) reveal their function in abiotic stress responses. Gene 2022; 836:146665. [PMID: 35691407 DOI: 10.1016/j.gene.2022.146665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 04/11/2022] [Accepted: 06/06/2022] [Indexed: 12/29/2022]
Abstract
Late embryogenesis abundant (LEA) proteins play an important role in plant growth and response to abiotic stresses. However the late embryogenesis abundant (LEA) gene family in Nicotiana tabacum has not been systematically studied. In this study, 123 NtLEA genes were identified in Nicotiana tabacum, and divided into 8 groups, including LEA_1, LEA_2, LEA_3, LEA_4, LEA_5, LEA_6, DHN (dehydratin) and SMP (Seed Maturation Protein). The LEA_2 group is the most abundant of the NtLEA family. The gene structure, conserved motifs, subcellular localization and physicochemical properties of the NtLEA genes were analyzed. RNA-seq and qPCR analyses showed that the NtLEA genes were significantly induced under two different abiotic stresses and showed different expression patterns. The expression patterns of 35 NtLEA genes responding to ABA and 3 NtLEA genes responding to NaCl abiotic stress, respectively, were characterized. The protein-protein interaction network revealed that most NtLEA proteins (>78%) had the potential function to enhance tobacco resistance to abiotic stress. The transcriptional regulatory network showed that 21 transcription factor families were involved in regulating the expression of the NtLEA genes. These results are beneficial for future studies of the function of the NtLEA genes.
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Affiliation(s)
- Weibo Geng
- Shandong Agricultural University, 271000 Taian, China
| | - Yanan Wang
- Shandong Agricultural University, 271000 Taian, China
| | - Jing Zhang
- Shandong Agricultural University, 271000 Taian, China
| | - Zhonghui Liu
- Shandong Agricultural University, 271000 Taian, China
| | - Xingyun Chen
- Shandong Agricultural University, 271000 Taian, China
| | - Liting Qin
- Shandong Agricultural University, 271000 Taian, China
| | - Long Yang
- Shandong Agricultural University, 271000 Taian, China.
| | - Heng Tang
- Shandong Agricultural University, 271000 Taian, China.
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Wen L, Liu T, Deng Z, Zhang Z, Wang Q, Wang W, Li W, Guo Y. Characterization of NAC transcription factor NtNAC028 as a regulator of leaf senescence and stress responses. FRONTIERS IN PLANT SCIENCE 2022; 13:941026. [PMID: 36046590 PMCID: PMC9421438 DOI: 10.3389/fpls.2022.941026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
NAC proteins constitute one of the largest transcription factor families and are involved in regulation of plant development and stress responses. Our previous transcriptome analyses of tobacco revealed a significant increase in the expression of NtNAC028 during leaf yellowing. In this study, we found that NtNAC028 was rapidly upregulated in response to high salinity, dehydration, and abscisic acid (ABA) stresses, suggesting a vital role of this gene in abiotic stress response. NtNAC028 loss-of-function tobacco plants generated via CRISPR-Cas9 showed delayed leaf senescence and increased tolerance to drought and salt stresses. Meanwhile NtNAC028 overexpression led to precocious leaf senescence and hypersensitivity to abiotic stresses in Arabidopsis, indicating that NtNAC028 functions as a positive regulator of natural leaf senescence and a negative regulator of stress tolerance. Furthermore, NtNAC028-overexpressing Arabidopsis plants showed lower antioxidant enzyme activities, higher reactive oxygen species (ROS), and H2O2 accumulation under high salinity, resulted in more severe oxidative damage after salt stress treatments. On the other hand, NtNAC028 mutation in tobacco resulted in upregulated expression of ROS-scavenging and abiotic stress-related genes, higher antioxidant enzyme activities, and enhanced tolerance against abiotic stresses, suggesting that NtNAC028 might act as a vital regulator for plant stress response likely by mediating ROS scavenging ability. Collectively, our results indicated that the NtNAC028 plays a key regulatory role in leaf senescence and response to multiple abiotic stresses.
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Affiliation(s)
| | | | | | | | | | | | - Wei Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong, China
| | - Yongfeng Guo
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong, China
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50
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Hu Y, Chen X, Shen X. Regulatory network established by transcription factors transmits drought stress signals in plant. STRESS BIOLOGY 2022; 2:26. [PMID: 37676542 PMCID: PMC10442052 DOI: 10.1007/s44154-022-00048-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/20/2022] [Indexed: 09/08/2023]
Abstract
Plants are sessile organisms that evolve with a flexible signal transduction system in order to rapidly respond to environmental changes. Drought, a common abiotic stress, affects multiple plant developmental processes especially growth. In response to drought stress, an intricate hierarchical regulatory network is established in plant to survive from the extreme environment. The transcriptional regulation carried out by transcription factors (TFs) is the most important step for the establishment of the network. In this review, we summarized almost all the TFs that have been reported to participate in drought tolerance (DT) in plant. Totally 466 TFs from 86 plant species that mostly belong to 11 families are collected here. This demonstrates that TFs in these 11 families are the main transcriptional regulators of plant DT. The regulatory network is built by direct protein-protein interaction or mutual regulation of TFs. TFs receive upstream signals possibly via post-transcriptional regulation and output signals to downstream targets via direct binding to their promoters to regulate gene expression.
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Affiliation(s)
- Yongfeng Hu
- Key Laboratory of Three Gorges Regional Plant Genetics and Germplasm Enhancement, Biotechnology Research Center, China Three Gorges University, Yichang, 443002 Hubei China
| | - Xiaoliang Chen
- Key Laboratory of Three Gorges Regional Plant Genetics and Germplasm Enhancement, Biotechnology Research Center, China Three Gorges University, Yichang, 443002 Hubei China
| | - Xiangling Shen
- Key Laboratory of Three Gorges Regional Plant Genetics and Germplasm Enhancement, Biotechnology Research Center, China Three Gorges University, Yichang, 443002 Hubei China
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