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Fan K, Wu Y, Mao Z, Yin K, He Y, Pan X, Zhu X, Liao C, Cui L, Jia Q, Li Z. A novel NAC transcription factor ZmNAC55 negatively regulates drought stress in Zea mays. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 214:108938. [PMID: 39067103 DOI: 10.1016/j.plaphy.2024.108938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/23/2024] [Accepted: 07/12/2024] [Indexed: 07/30/2024]
Abstract
Drought stress is a major limit on the maize growth and productivity, and understanding the drought response mechanism is one of the important ways to improve drought resistance in maize. However, more drought-related genes and their regulated mechanisms are still to be reported. Here, we identified a novel NAC transcription factor ZmNAC55 in Zea mays and comprehensively investigated the functions of ZmNAC55 under drought stress. ZmNAC55 belonged to the NAP subfamily. ZmNAC55 had a conserved NAC domain in the N-terminal region and a divergent TAR region in the C-terminal region. ZmNAC55 was a nuclear protein, and ZmNAC55 and its TAR region had the transcriptional activation activity. Furthermore, the expression level of ZmNAC55 in leaves could be highly induced by drought stress. ZmNAC55 overexpression in Arabidopsis conferred the drought-sensitive phenotype with higher water loss, lower survival rate, higher membrane ion leakage, and higher expression levels of some drought-related genes. Meanwhile, ZmNAC55 underexpression in maize enhanced drought tolerance with lower water loss, higher survival rate, lower membrane ion leakage and lower expression levels of some drought-related genes. In addition, ZmNAC55 appeared to be very key in regulating ROS production under drought stress. Moreover, ZmNAC55 could activate ZmHOP3 expression by binding to its promoter. A novel working model of ZmNAC55 under drought stress could be found in maize. Taken together, the NAC transcription factor ZmNAC55 could negatively regulate drought stress via increasing ZmHOP3 expression in maize. ZmNAC55 is a promising candidate for improving drought resistance in maize.
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Affiliation(s)
- Kai Fan
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yuchen Wu
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Zhijun Mao
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Kan Yin
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yuxi He
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xinfeng Pan
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaxiao Zhu
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Changjian Liao
- Crop Research Institute, Fujian Academy of Agricultural Sciences/Technical Research Center of Dry Crop Variety Breeding in Fujian Province, Fuzhou, 350013, China
| | - Lili Cui
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China.
| | - Qi Jia
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Zhaowei Li
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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Yu S, Wu M, Wang X, Li M, Gao X, Xu X, Zhang Y, Liu X, Yu L, Zhang Y. Common Bean ( Phaseolus vulgaris L.) NAC Transcriptional Factor PvNAC52 Enhances Transgenic Arabidopsis Resistance to Salt, Alkali, Osmotic, and ABA Stress by Upregulating Stress-Responsive Genes. Int J Mol Sci 2024; 25:5818. [PMID: 38892008 PMCID: PMC11172058 DOI: 10.3390/ijms25115818] [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: 05/05/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
The NAC family of transcription factors includes no apical meristem (NAM), Arabidopsis thaliana transcription activator 1/2 (ATAF1/2), and cup-shaped cotyledon (CUC2) proteins, which are unique to plants, contributing significantly to their adaptation to environmental challenges. In the present study, we observed that the PvNAC52 protein is predominantly expressed in the cell membrane, cytoplasm, and nucleus. Overexpression of PvNAC52 in Arabidopsis strengthened plant resilience to salt, alkali, osmotic, and ABA stresses. PvNAC52 significantly (p < 0.05) reduced the degree of oxidative damage to cell membranes, proline content, and plant water loss by increasing the expression of MSD1, FSD1, CSD1, POD, PRX69, CAT, and P5CS2. Moreover, the expression of genes associated with abiotic stress responses, such as SOS1, P5S1, RD29A, NCED3, ABIs, LEAs, and DREBs, was enhanced by PvNAC52 overexpression. A yeast one-hybrid assay showed that PvNAC52 specifically binds to the cis-acting elements ABRE (abscisic acid-responsive elements, ACGTG) within the promoter. This further suggests that PvNAC52 is responsible for the transcriptional modulation of abiotic stress response genes by identifying the core sequence, ACGTG. These findings provide a theoretical foundation for the further analysis of the targeted cis-acting elements and genes downstream of PvNAC52 in the common bean.
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Affiliation(s)
- Song Yu
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
| | - Mingxu Wu
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
| | - Xiaoqin Wang
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
| | - Mukai Li
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
| | - Xinhan Gao
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
| | - Xiangru Xu
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
| | - Yutao Zhang
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
| | - Xinran Liu
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
| | - Lihe Yu
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Daqing 163319, China
| | - Yifei Zhang
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (S.Y.); (M.W.); (X.W.); (M.L.); (X.G.); (X.X.); (Y.Z.); (X.L.)
- Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement, Daqing 163319, China
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Huang G, Wan R, Zou L, Ke J, Zhou L, Tan S, Li T, Chen L. The Brachypodium distachyon DREB transcription factor BdDREB-39 confers oxidative stress tolerance in transgenic tobacco. PLANT CELL REPORTS 2024; 43:143. [PMID: 38750149 DOI: 10.1007/s00299-024-03223-w] [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: 01/11/2024] [Accepted: 04/19/2024] [Indexed: 06/18/2024]
Abstract
Key message BdDREB-39 is a DREB/CBF transcription factor, localized in the nucleus with transactivation activity, and BdDREB-39-overexpressing transgenic yeasts and tobacco enhanced the tolerance to oxidative stress.Abstract The DREB/CBF transcription factors are generally recognized to play an important factor in plant growth, development and response to various abiotic stresses. However, the mechanism of DREB/CBFs in oxidative stress response is largely unknown. This study isolated a DREB/CBF gene BdDREB-39 from Brachypodium distachyon (B. distachyon). Multiple sequence alignment and phylogenetic analysis showed that BdDREB-39 was closely related to the DREB proteins of oats, barley, wheat and rye and therefore its study can provide a reference for the excavation and genetic improvement of BdDREB-39 or its homologs in its closely related species. The transcript levels of BdDREB-39 were significantly up-regulated under H2O2 stress. BdDREB-39 was localised in the nucleus and functioned as a transcriptional activator. Overexpression of BdDREB-39 enhanced H2O2 tolerance in yeast. Transgenic tobaccos with BdDREB-39 had higher germination rates, longer root, better growth status, lesser reactive oxygen species (ROS) and malondialdehyde (MDA), and higher superoxide dismutase (SOD) and peroxidase (POD) activities than wild type (WT). The expression levels of ROS-related and stress-related genes were improved by BdDREB-39. In summary, these results revealed that BdDREB-39 can improve the viability of tobacco by regulating the expression of ROS and stress-related genes, allowing transgenic tobacco to accumulate lower levels of ROS and reducing the damage caused by ROS to cells. The BdDREB-39 gene has the potential for developing plant varieties tolerant to stress.
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Affiliation(s)
- Gang Huang
- College of Life Science, Jianghan University, Wuhan, 430056, China
| | - Renjing Wan
- College of Life Science, Jianghan University, Wuhan, 430056, China
| | - Liping Zou
- College of Life Science, Jianghan University, Wuhan, 430056, China
| | - Jie Ke
- College of Life Science, Jianghan University, Wuhan, 430056, China
| | - Lihong Zhou
- College of Life Science, Jianghan University, Wuhan, 430056, China
| | - Shenglong Tan
- School of Information Engineering, Hubei University of Economics, Wuhan, 430205, China.
| | - Tiantian Li
- College of Life Science, Jianghan University, Wuhan, 430056, China.
| | - Lihong Chen
- College of Life Science, Jianghan University, Wuhan, 430056, China.
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He L, Wu Z, Wang X, Zhao C, Cheng D, Du C, Wang H, Gao Y, Zhang R, Han J, Xu J. A novel maize F-bZIP member, ZmbZIP76, functions as a positive regulator in ABA-mediated abiotic stress tolerance by binding to ACGT-containing elements. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 341:111952. [PMID: 38072329 DOI: 10.1016/j.plantsci.2023.111952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/31/2023] [Accepted: 12/06/2023] [Indexed: 02/10/2024]
Abstract
The group F-bZIP transcription factors (TFs) in Arabidopsis are involved in nutrient deficiency or salt stress responses. Nevertheless, our learning about the functions of group F-bZIP genes in maize remains limited. Here, we cloned a new F-bZIP gene (ZmbZIP76) from maize inbred line He344. The expression of ZmbZIP76 in maize was dramatically induced by high salt, osmotic stress and abscisic acid. Accordingly, overexpression of ZmbZIP76 increased tolerance of transgenic plants to salt and osmotic stress. In addition, ZmbZIP76 functions as a nuclear transcription factor and upregulates the expression of a range of abiotic stress-responsive genes by binding to the ACGT-containing elements, leading to enhanced reactive oxygen species (ROS) scavenging capability, increased abscisic acid level, proline content, and ratio of K+/Na+, reduced water loss rate, and membrane damage. These physiological changes caused by ZmbZIP76 ultimately enhanced tolerance of transgenic plants to salt and osmotic stress.
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Affiliation(s)
- Lin He
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Zixuan Wu
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Xueheyuan Wang
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Changjiang Zhao
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Dianjun Cheng
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Chuhuai Du
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Haoyu Wang
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Yuan Gao
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Ruijia Zhang
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina
| | - Jienan Han
- Institute of Crop Science, Chinese Academy of Agricultural Science, No. 12 Zhongguancun South Street, Haidian District, Beijing 100081, PR China.
| | - Jingyu Xu
- Key Laboratory of Low Carbon Green Agriculture in Northeast Plain, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing 163319, PRChina.
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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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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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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: 32] [Impact Index Per Article: 32.0] [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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Wang Y, Cui Y, Liu B, Wang Y, Sun S, Wang J, Tan M, Yan H, Zhang Y. Lilium pumilum stress-responsive NAC transcription factor LpNAC17 enhances salt stress tolerance in tobacco. FRONTIERS IN PLANT SCIENCE 2022; 13:993841. [PMID: 36119598 PMCID: PMC9478543 DOI: 10.3389/fpls.2022.993841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Lilium pumilum is a perennial herb with ornamental edible and medicinal value. It is an excellent wild germplasm resource with wide distribution and strong resistance. The NAC family of transcription factors is unique to higher plants. The NAC family plays a regulatory role in plant growth and development and participates in plant responses to biotic and abiotic stresses. The LpNAC17 gene of L. pumilum was cloned and transformed into tobacco to investigate the response of transgenic tobacco to salt stress. The results showed that the net photosynthetic rate and contents of chlorophyll in LpNAC17 over-expressed tobacco were higher than those in the control plants, while the stomatal conductance, transpiration rate and intercellular CO2 concentration were lower than those in the controls. The activity of superoxide dismutase, peroxidase, catalase, and the content of proline in LpNAC17 over-expressed tobacco were higher than those in the controls, while the content of malondialdehyde, superoxide anion, and hydrogen peroxide were lower than that in the control. Nitro-blue tetrazolium staining and 3,3'-diaminobenzidine tissue localization showed that the contents of O 2 - and H2O2 in transgenic tobacco was lower than in the controls. The expression levels of NtSOD, NtPOD, NtCAT, NtHAK1, NtPMA4, and NtSOS1 in the transgenic tobacco were higher than those in the controls. Therefore, this study provides a gene source for molecular breeding of salt-tolerant plants through genetic engineering, and lays a foundation for further research on salt-tolerant Lily.
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Li X, Wang Q, Guo C, Sun J, Li Z, Wang Y, Yang A, Pu W, Guo Y, Gao J, Wen L. NtNAC053, A Novel NAC Transcription Factor, Confers Drought and Salt Tolerances in Tobacco. FRONTIERS IN PLANT SCIENCE 2022; 13:817106. [PMID: 35599885 PMCID: PMC9115565 DOI: 10.3389/fpls.2022.817106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/21/2022] [Indexed: 06/15/2023]
Abstract
The NAC (NAM, ATAF1/2, and CUC2) family acts as one of the largest families of the transcription factor in the plant kingdom and was revealed to function as the important regulators in various environmental stresses. However, a few studies were reported about the biofunctions of the NAC transcription factor in tobacco. In the current study, we characterized a novel NAC transcription factor encoding the gene NtNAC053 in tobacco, which was significantly up-regulated when exposed to salt and drought treatments. The results of cis-acting elements analysis suggested that the promoter region of NtNAC053 gene possesses a number of stress-responsive elements, and this gene could be induced by exogenous abscisic acid (ABA) treatment. Moreover, the NtNAC053-GFP fusion protein was localized in the cell nucleus and possessed a transactivation domain in its C-terminal, implying that NtNAC053 may undertake as a transcriptional activator in tobacco. Notably, the overexpression of NtNAC053 in tobacco resulted in hypersensitivity to ABA treatment. Furthermore, these overexpression lines showed significantly enhanced tolerances to drought and salt stresses. Under salt and drought stresses, these overexpression lines possessed higher superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities. Interestingly, the expressions of putative stress-related genes, including NtCOR15A, NtRAB18, NtDREB1A, NtERF5, NtKAT2, and NtERD11, were up-regulated in these overexpression lines when subjected to salt and drought stresses. The clues provided in our study suggested that the NtNAC053 gene encodes a novel NAC transcription factor and could confer the drought and salt stress tolerances by inspiring the downstream stress-responsive genes and antioxidant system in tobacco.
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Affiliation(s)
- Xiaoxu Li
- Technology Center, China Tobacco Hunan Industrial Co., Ltd., Changsha, China
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Qi Wang
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
- Shandong Peanut Research Institute, Qingdao, China
| | - Cun Guo
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinhao Sun
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Zhiyuan Li
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Yaofu Wang
- Technology Center, China Tobacco Hunan Industrial Co., Ltd., Changsha, China
| | - Aiguo Yang
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Wenxuan Pu
- Technology Center, China Tobacco Hunan Industrial Co., Ltd., Changsha, China
| | - Yongfeng Guo
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Junping Gao
- Technology Center, China Tobacco Hunan Industrial Co., Ltd., Changsha, China
| | - Liuying Wen
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
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Song C, Wu M, Zhou Y, Gong Z, Yu W, Zhang Y, Yang Z. NAC-mediated membrane lipid remodeling negatively regulates fruit cold tolerance. HORTICULTURE RESEARCH 2022; 9:uhac039. [PMID: 35531317 PMCID: PMC9071380 DOI: 10.1093/hr/uhac039] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 02/06/2022] [Indexed: 05/11/2023]
Abstract
Low temperatures are known to destroy cell membranes' structural integrity by affecting the remodeling of their phospholipids. Fruits stored at low temperature are prone to chilling injury, characterized by discoloration, absence of ripening, surface pitting, growth inhibition, flavor loss, decay, and wilting. Phosphatidic acid, a vital second-messenger lipid in plants, is known to accumulate in response to different kinds of stress stimuli. However, the regulatory mechanism of its production from the degradation of phospholipids remains poorly understood. We identified two cold-responsive NAC (NAM/ATAF1/CUC2) transcription factors from bananas, namely, MaNAC25 and MaNAC28, which negatively regulated cold tolerance in banana fruits by upregulating the expression of phospholipid degradation genes in banana fruits. Furthermore, MaNAC25 and MaNAC28 formed a positive feedback loop to induce phospholipid degradation and produce phosphatidic acid. In contrast, ethylene directly inhibited the degradation of phospholipids in banana and transgenic tomato fruits. In addition, ethylene reduced the activity of MaNAC25 and MaNAC28, thereby inhibiting phospholipid degradation. To conclude, NAC-mediated membrane lipid remodeling negatively regulates the cold tolerance of banana and transgenic tomato fruits.
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Affiliation(s)
- Chunbo Song
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266100, China
| | - Mengbo Wu
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Ying Zhou
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Zehao Gong
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Weiwei Yu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Yi Zhang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
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Luo P, Chen Y, Rong K, Lu Y, Wang N, Xu Z, Pang B, Zhou D, Weng J, Li M, Zhang D, Yong H, Han J, Zhou Z, Gao W, Hao Z, Li X. ZmSNAC13, a maize NAC transcription factor conferring enhanced resistance to multiple abiotic stresses in transgenic Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 170:160-170. [PMID: 34891072 DOI: 10.1016/j.plaphy.2021.11.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 06/13/2023]
Abstract
Abiotic stress is the main factor that severely limits crop growth and yield. NAC (NAM, ATAF1/2 and CUC2) transcription factors play an important role in dealing with various abiotic stresses. Here, we discovered the ZmSNAC13 gene in drought-tolerant maize lines by RNA-seq analysis and verified its function in Arabidopsis thaliana. First, its gene structure showed that ZmSNAC13 had a typical NAC domain and a highly variable C-terminal. There were multiple cis-acting elements related to stress in its promoter region. Overexpression of ZmSNAC13 resulted in enhanced tolerances to drought and salt stresses in Arabidopsis, characterized by a reduction in the water loss rate, a sustained effective photosynthesis rate, and increased cell membrane stability in leaves under drought conditions. Transcriptome analysis showed that a large number of differentially expressed genes regulated by overexpression of ZmSNAC13 were identified, and the main drought tolerance regulatory pathways involved were the ABA pathway and MAPK cascade signaling pathway. Overexpression of ZmSNAC13 promoted the expression of genes, such as PYL9 and DREB3, thereby enhancing tolerance to adverse environments. Adaptability, while restraining genes expression such as WRKY53 and MPK3, facilitates regulation of senescence in Arabidopsis and improves plant responses to adversity. Therefore, ZmSNAC13 is promising gene of interest for use in transgenic breeding to improve abiotic stress tolerance in crops.
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Affiliation(s)
- Ping Luo
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China; College of Agronomy, Xinjiang Agricultural University, Urumqi, PR China.
| | - Yong Chen
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China.
| | - Kewei Rong
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China; College of Agronomy, Xinjiang Agricultural University, Urumqi, PR China
| | - Yuelei Lu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China; College of Agronomy, Xinjiang Agricultural University, Urumqi, PR China
| | - Nan Wang
- College of Agronomy, Hebei Agricultural University, Baoding, PR China
| | - Zhennan Xu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Bo Pang
- College of Agronomy, Xinjiang Agricultural University, Urumqi, PR China
| | - Di Zhou
- College of Agronomy, Xinjiang Agricultural University, Urumqi, PR China
| | - Jianfeng Weng
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Mingshun Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Degui Zhang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Hongjun Yong
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Jienan Han
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Zhiqiang Zhou
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Wenwei Gao
- College of Agronomy, Xinjiang Agricultural University, Urumqi, PR China.
| | - Zhuanfang Hao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China.
| | - Xinhai Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, PR China.
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Identification of HvLRX, a new dehydration and light responsive gene in Tibetan hulless barley (Hordeum vulgare var. nudum). Genes Genomics 2021; 43:1445-1461. [PMID: 34480266 DOI: 10.1007/s13258-021-01147-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/02/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Tibetan hulless barley (Hordeum vulgare var. nudum), adjusting to the harsh environment on Qinghai-Tibet Plateau, is a good subject for analyzing drought tolerance mechanism. Several unannotated differentially expressed genes (DEGs) were identified through our previous RNA-Seq study using two hulless barley accessions with contrasting drought tolerance. One of these DEGs, HVU010048.2, showed up-regulated pattern under dehydration stress in both drought tolerant (DT) and drought susceptible (DS) accessions, while its function in drought resistance remains unknown. This new gene was named as HvLRX (light responsive X), because its expression was induced under high light intensity while suppressed under dark. OBJECTIVE To provide preliminary bioinformatics prediction, expression pattern, and drought resistance function of this new gene. METHODS Bioinformatics analysis of HvLRX were conducted by MEGA, PlantCARE, ProtParam, CELLO et al. The expression pattern of HvLRX under different light intensity, dehydration shock, gradual drought stress, NaCl stress, polyethylene glycol (PEG) 6000 stress and abscisic acid (ABA) treatment was investigated by quantitative reverse transcription-polymerase chain reaction (RT-qPCR). The function of HvLRX was analyzed by virus induced gene silencing (VIGS) in hulless barley and by transgenic method in tobacco. RESULTS Full cDNAs of HvLRX were cloned and compared in three hulless barley accessions. Homologues of HvLRX protein in other plants were excavated and their phylogenetic relationship was analyzed. Several light responsive elements (ATC-motif, Box 4, G-box, Sp1, and chs-CMA1a) were identified in its promoter region. Its expression can be promoted under high light intensity, dehydration shock, gradual drought stress, PEG 6000, and NaCl stress, but was almost unchanged in ABA treatment. HvLRX-silenced plants had a higher leaf water loss rate (WLR) and a lower survival rate (SR) compared with controls under dehydration stress. The infected leaves of HvLRX-silenced plants lost their water content quickly and became withered at 10 dpi. The SR of HvLRX overexpressed transgenic tobacco plants was significantly higher than that of wild-type plants. These results indicated HvLRX play a role in drought resistance. Besides, retarded vegetative growth was detected in HvLRX-silenced hulless barley plants, which suggested that this gene is important for plant development. CONCLUSIONS This study provided data of bioinformatics, expression pattern, and function of HvLRX. To our knowledge, this is the first report of this new dehydration and light responsive gene.
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Ma B, Liu X, Guo S, Xie X, Zhang J, Wang J, Zheng L, Wang Y. RtNAC100 involved in the regulation of ROS, Na + accumulation and induced salt-related PCD through MeJA signal pathways in recretohalophyte Reaumuria trigyna. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 310:110976. [PMID: 34315592 DOI: 10.1016/j.plantsci.2021.110976] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 06/04/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
NAM, ATAF1/2, and CUC2 (NAC) proteins regulate plant responses to salt stress. However, the molecular mechanisms by which NAC proteins regulate salt-induced programmed cell death (PCD) are unclear. We identified 56 NAC genes, 35 of which had complete open reading frames with complete NAM domain, in the R. trigyna transcriptome. Salt stress and methyl jasmonate (MeJA) mediated PCD-induced leaf senescence in R. trigyna seedlings. Salt stress accelerated endogenous JA biosynthesis, upregulating RtNAC100 expression. This promoted salt-induced leaf senescence in R. trigyna by regulating RtRbohE and RtSAG12/20 and enhancing ROS accumulation. Transgenic assays showed that RtNAC100 overexpression aggravated salt-induced PCD in transgenic lines by promoting ROS and Na+ accumulation, ROS-Ca2+ hub activation, and PCD-related gene expression. Therefore, RtNAC100 induces PCD via the MeJA signaling pathway in R. trigyna under salt stress.
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Affiliation(s)
- Binjie Ma
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, PR China; Key Laboratory of Herbage and Endemic Crop Biotechnology, and College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Xiaofei Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, PR China; Key Laboratory of Herbage and Endemic Crop Biotechnology, and College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Shuyu Guo
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, PR China; Key Laboratory of Herbage and Endemic Crop Biotechnology, and College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Xinlei Xie
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, PR China; Key Laboratory of Herbage and Endemic Crop Biotechnology, and College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Jie Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, PR China; Key Laboratory of Herbage and Endemic Crop Biotechnology, and College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Jianye Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, PR China; Key Laboratory of Herbage and Endemic Crop Biotechnology, and College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Linlin Zheng
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, PR China; Key Laboratory of Herbage and Endemic Crop Biotechnology, and College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Yingchun Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, PR China; Key Laboratory of Herbage and Endemic Crop Biotechnology, and College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
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Yang S, Zhu H, Huang L, Zhang G, Wang L, Jiang X, Zhong Q. Transcriptome-wide and expression analysis of the NAC gene family in pepino ( Solanum muricatum) during drought stress. PeerJ 2021; 9:e10966. [PMID: 33850643 PMCID: PMC8015785 DOI: 10.7717/peerj.10966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 01/28/2021] [Indexed: 11/20/2022] Open
Abstract
Solanum muricatum (Pepino) is an increasingly popular solanaceous crop and is tolerant of drought conditions. In this study, 71 NAC transcription factor family genes of S. muricatum were selected to provide a theoretical basis for subsequent in-depth study of their regulatory roles in the response to biological and abiotic stresses, and were subjected to whole-genome analysis. The NAC sequences obtained by transcriptome sequencing were subjected to bioinformatics prediction and analysis. Three concentration gradient drought stresses were applied to the plants, and the target gene sequences were analyzed by qPCR to determine their expression under drought stress. The results showed that the S. muricatum NAC family contains 71 genes, 47 of which have conserved domains. The protein sequence length, molecular weight, hydrophilicity, aliphatic index and isoelectric point of these transcription factors were predicted and analyzed. Phylogenetic analysis showed that the S. muricatum NAC gene family is divided into seven subfamilies. Some NAC genes of S. muricatum are closely related to the NAC genes of Solanaceae crops such as tomato, pepper and potato. The seedlings of S. muricatum were grown under different gradients of drought stress conditions and qPCR was used to analyze the NAC expression in roots, stems, leaves and flowers. The results showed that 13 genes did not respond to drought stress while 58 NAC genes of S. muricatum that responded to drought stress had obvious tissue expression specificity. The overall expression levels in the root were found to be high. The number of genes at extremely significant expression levels was very large, with significant polarization. Seven NAC genes with significant responses were selected to analyze their expression trend in the different drought stress gradients. It was found that genes with the same expression trend also had the same or part of the same conserved domain. Seven SmNACs that may play an important role in drought stress were selected for NAC amino acid sequence alignment of Solanaceae crops. Four had strong similarity to other Solanaceae NAC amino acid sequences, and SmNAC has high homology with the Solanum pennellii. The NAC transcription factor family genes of S. muricatum showed strong structural conservation. Under drought stress, the expression of NAC transcription factor family genes of S. muricatum changed significantly, which actively responded to and participated in the regulation process of drought stress, thereby laying foundations for subsequent in-depth research of the specific functions of NAC transcription factor family genes of S. muricatum.
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Affiliation(s)
- Shipeng Yang
- Qinghai Key Laboratory of Vegetable Genetics and Physiology, Agriculture and Forestry Sciences Institute of Qinghai University, Qinghai University, Xining, P.R. China
| | | | - Liping Huang
- Qinghai Key Laboratory of Vegetable Genetics and Physiology, Agriculture and Forestry Sciences Institute of Qinghai University, Qinghai University, Xining, P.R. China
| | - Guangnan Zhang
- Qinghai Key Laboratory of Vegetable Genetics and Physiology, Agriculture and Forestry Sciences Institute of Qinghai University, Qinghai University, Xining, P.R. China
| | - Lihui Wang
- Qinghai Key Laboratory of Vegetable Genetics and Physiology, Agriculture and Forestry Sciences Institute of Qinghai University, Qinghai University, Xining, P.R. China
| | - Xiaoting Jiang
- Qinghai Higher Vocational & Technical Institute, Ledu, P.R. China, Xining, China
| | - Qiwen Zhong
- Qinghai Key Laboratory of Vegetable Genetics and Physiology, Agriculture and Forestry Sciences Institute of Qinghai University, Qinghai University, Xining, P.R. China
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Potato NAC Transcription Factor StNAC053 Enhances Salt and Drought Tolerance in Transgenic Arabidopsis. Int J Mol Sci 2021; 22:ijms22052568. [PMID: 33806406 PMCID: PMC7961516 DOI: 10.3390/ijms22052568] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/28/2021] [Accepted: 03/01/2021] [Indexed: 12/19/2022] Open
Abstract
The NAC (NAM, ATAF1/2, and CUC2) transcription factors comprise one of the largest transcription factor families in plants and play important roles in stress responses. However, little is known about the functions of potato NAC family members. Here we report the cloning of a potato NAC transcription factor gene StNAC053, which was significantly upregulated after salt, drought, and abscisic acid treatments. Furthermore, the StNAC053-GFP fusion protein was found to be located in the nucleus and had a C-terminal transactivation domain, implying that StNAC053 may function as a transcriptional activator in potato. Notably, Arabidopsis plants overexpressing StNAC053 displayed lower seed germination rates compared to wild-type under exogenous ABA treatment. In addition, the StNAC053 overexpression Arabidopsis lines displayed significantly increased tolerance to salt and drought stress treatments. Moreover, the StNAC053-OE lines were found to have higher activities of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) under multiple stress treatments. Interestingly, the expression levels of several stress-related genes including COR15A,DREB1A, ERD11, RAB18, ERF5, and KAT2, were significantly upregulated in these StNAC053-overexpressing lines. Taken together, overexpression of the stress-inducible StNAC053 gene could enhance the tolerances to both salt and drought stress treatments in Arabidopsis, likely by upregulating stress-related genes.
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Wang Y, Cao S, Guan C, Kong X, Wang Y, Cui Y, Liu B, Zhou Y, Zhang Y. Overexpressing the NAC transcription factor LpNAC13 from Lilium pumilum in tobacco negatively regulates the drought response and positively regulates the salt response. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 149:96-110. [PMID: 32058898 DOI: 10.1016/j.plaphy.2020.01.036] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 05/25/2023]
Abstract
NACs are one of the largest transcription factor families in plants and are involved in the response to abiotic stress. A new stress-responsive NAC transcription factor gene, LpNAC13, was isolated from Lilium pumilum bulbs. The expression of LpNAC13 was induced by drought, salt, cold and ABA treatments. LpNAC13 overexpressing plants were generated to explore the function of LpNAC13 in response to drought and salt stress. Overexpression of LpNAC13 in tobacco displayed a reduced drought tolerance but exhibited an enhanced salt tolerance. The LpNAC13 overexpression plants had decreased antioxidant enzyme activities, content of proline and chlorophyll, increased MDA content under drought condition, the results in the LpNAC13 plants under salt condition were opposite to those under drought condition. The seed germination and root length assays of overexpression of LpNAC13 showed decreased sensitivity to ABA. Functional analyses demonstrate that LpNAC13 plays opposite roles in drought and salt stress tolerance, acting as a negative regulator of drought response but as a positive regulator of salt response in tobacco.
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Affiliation(s)
- Ying Wang
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Shangjie Cao
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Chunjing Guan
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Xin Kong
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Yiping Wang
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Ying Cui
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Bin Liu
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Yunwei Zhou
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Yanni Zhang
- College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China.
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Meng X, Liu S, Dong T, Xu T, Ma D, Pan S, Li Z, Zhu M. Comparative Transcriptome and Proteome Analysis of Salt-Tolerant and Salt-Sensitive Sweet Potato and Overexpression of IbNAC7 Confers Salt Tolerance in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2020; 11:572540. [PMID: 32973858 PMCID: PMC7481572 DOI: 10.3389/fpls.2020.572540] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/14/2020] [Indexed: 05/04/2023]
Abstract
Salt stress is one of the major devastating factors affecting the growth and yield of almost all crops, including the crucial staple food crop sweet potato. To understand their molecular responses to salt stress, comparative transcriptome and proteome analysis of salt-tolerant cultivar Xushu 22 and salt-sensitive cultivar Xushu 32 were investigated. The results showed the two genotypes had distinct differences at the transcription level and translation level even without salt stress, while inconsistent expression between the transcriptome and proteome data was observed. A total of 16,396 differentially expressed genes (DEGs) and 727 differentially expressed proteins (DEPs) were identified. Wherein, 1,764 DEGs and 93 DEPs were specifically expressed in the tolerant genotype. Furthermore, the results revealed that the significantly upregulated genes were mainly related to the regulation of ion accumulation, stress signaling, transcriptional regulation, redox reactions, plant hormone signal transduction, and secondary metabolite accumulation, which may be involved in the response of sweet potato to salt stress and/or may determine the salt tolerance difference between the two genotypes. In addition, 1,618 differentially expressed regulatory genes were identified, including bZIP, bHLH, ERF, MYB, NAC, and WRKY. Strikingly, transgenic Arabidopsis overexpressing IbNAC7 displayed enhanced salt tolerance compared to WT plants, and higher catalase (CAT) activity, chlorophyll and proline contents, and lower malondialdehyde (MDA) content and reactive oxygen species (ROS) accumulation were detected in transgenic plants compared with that of WT under salt stress. Furthermore, RNA-seq and qRT-PCR analysis displayed that the expression of many stress-related genes was upregulated in transgenic plants. Collectively, these findings provide revealing insights into sweet potato molecular response to salt stress and underlie the complex salt tolerance mechanisms between genotypes, and IbNAC7 was shown as a promising candidate gene to enhance salt tolerance of sweet potato.
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Affiliation(s)
- Xiaoqing Meng
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, China
- Jiangsu Key Laboratory of Phylogenomics & Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, China
| | - Siyuan Liu
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, China
- Jiangsu Key Laboratory of Phylogenomics & Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, China
| | - Tingting Dong
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, China
- Jiangsu Key Laboratory of Phylogenomics & Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, China
| | - Tao Xu
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, China
- Jiangsu Key Laboratory of Phylogenomics & Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, China
| | - Daifu Ma
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, China
- Jiangsu Xuzhou Sweet Potato Research Center, Chinese Academy of Agricultural Sciences (CAAS), Xuzhou, China
| | - Shenyuan Pan
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, China
- Jiangsu Key Laboratory of Phylogenomics & Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, China
| | - Zongyun Li
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, China
- Jiangsu Key Laboratory of Phylogenomics & Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, China
- *Correspondence: Zongyun Li, ; Mingku Zhu,
| | - Mingku Zhu
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, China
- Jiangsu Key Laboratory of Phylogenomics & Comparative Genomics, School of Life Science, Jiangsu Normal University, Xuzhou, China
- *Correspondence: Zongyun Li, ; Mingku Zhu,
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Nguyen NC, Hoang XLT, Nguyen QT, Binh NX, Watanabe Y, Thao NP, Tran LSP. Ectopic Expression of Glycine maxGmNAC109 Enhances Drought Tolerance and ABA Sensitivity in Arabidopsis. Biomolecules 2019; 9:E714. [PMID: 31703428 PMCID: PMC6920929 DOI: 10.3390/biom9110714] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/28/2019] [Accepted: 11/01/2019] [Indexed: 01/09/2023] Open
Abstract
The NAC (NAM, ATAF1/2, CUC2) transcription factors are widely known for their various functions in plant development and stress tolerance. Previous studies have demonstrated that genetic engineering can be applied to enhance drought tolerance via overexpression/ectopic expression of NAC genes. In the present study, the dehydration- and drought-inducible GmNAC109 from Glycine max was ectopically expressed in Arabidopsis (GmNAC109-EX) plants to study its biological functions in mediating plant adaptation to water deficit conditions. Results revealed an improved drought tolerance in the transgenic plants, which displayed greater recovery rates by 20% to 54% than did the wild-type plants. In support of this finding, GmNAC109-EX plants exhibited lower water loss rates and decreased endogenous hydrogen peroxide production in leaf tissues under drought, as well as higher sensitivity to exogenous abscisic acid (ABA) treatment at germination and early seedling development stages. In addition, analyses of antioxidant enzymes indicated that GmNAC109-EX plants possessed stronger activities of superoxide dismutase and catalase under drought stress. These results together demonstrated that GmNAC109 acts as a positive transcriptional regulator in the ABA-signaling pathway, enabling plants to cope with adverse water deficit conditions.
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Affiliation(s)
- Nguyen Cao Nguyen
- School of Biotechnology, International University—Vietnam National University HCMC, Ho Chi Minh 700000, Vietnam; (N.C.N.); (X.L.T.H.); (Q.T.N.)
| | - Xuan Lan Thi Hoang
- School of Biotechnology, International University—Vietnam National University HCMC, Ho Chi Minh 700000, Vietnam; (N.C.N.); (X.L.T.H.); (Q.T.N.)
| | - Quang Thien Nguyen
- School of Biotechnology, International University—Vietnam National University HCMC, Ho Chi Minh 700000, Vietnam; (N.C.N.); (X.L.T.H.); (Q.T.N.)
| | - Ngo Xuan Binh
- Faculty of Biotechnology and Food Technology, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen 250000, Vietnam;
| | - Yasuko Watanabe
- Stress Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan;
| | - Nguyen Phuong Thao
- School of Biotechnology, International University—Vietnam National University HCMC, Ho Chi Minh 700000, Vietnam; (N.C.N.); (X.L.T.H.); (Q.T.N.)
| | - Lam-Son Phan Tran
- Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang, Vietnam; Stress Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan
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