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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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Peng Y, Cui L, Wang Y, Wei L, Geng S, Chen H, Chen G, Yang L, Bie Z. Pumpkin CmoDREB2A enhances salt tolerance of grafted cucumber through interaction with CmoNAC1 to regulate H 2O 2 and ABA signaling and K +/Na + homeostasis. HORTICULTURE RESEARCH 2024; 11:uhae057. [PMID: 38720932 PMCID: PMC11077054 DOI: 10.1093/hr/uhae057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/19/2024] [Indexed: 05/12/2024]
Abstract
Pumpkin CmoNAC1 enhances salt tolerance in grafted cucumbers. However, the potential interactions with other proteins that may co-regulate salt tolerance alongside CmoNAC1 have yet to be explored. In this study, we identified pumpkin CmoDREB2A as a pivotal transcription factor that interacts synergistically with CmoNAC1 in the co-regulation of salt tolerance. Both transcription factors were observed to bind to each other's promoters, forming a positive regulatory loop of their transcription. Knockout of CmoDREB2A in the root resulted in reduced salt tolerance in grafted cucumbers, whereas overexpression demonstrated the opposite effect. Multiple assays in our study provided evidence of the protein interaction between CmoDREB2A and CmoNAC1. Exploiting this interaction, CmoDREB2A facilitated the binding of CmoNAC1 to the promoters of CmoRBOHD1, CmoNCED6, CmoAKT1;2, and CmoHKT1;1, inducing H2O2 and ABA synthesis and increasing the K+/Na+ ratio in grafted cucumbers under salt stress. Additionally, CmoNAC1 also promoted the binding of CmoDREB2A to CmoHAK5;1/CmoHAK5;2 promoters, further contributing to the K+/Na+ homeostasis. In summary, these findings reveal a crucial mechanism of CmoNAC1 and CmoDREB2A forming a complex enhancing salt tolerance in grafted cucumbers.
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Affiliation(s)
- Yuquan Peng
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Lvjun Cui
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Ying Wang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Lanxing Wei
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Shouyu Geng
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Hui Chen
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Guoyu Chen
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Li Yang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Zhilong Bie
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops/College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
- Hubei Hongshan Laboratory, Department of Science and Technology of Hubei Province, 430070 Wuhan, China
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Mao K, Yang J, Sun Y, Guo X, Qiu L, Mei Q, Li N, Ma F. MdbHLH160 is stabilized via reduced MdBT2-mediated degradation to promote MdSOD1 and MdDREB2A-like expression for apple drought tolerance. PLANT PHYSIOLOGY 2024; 194:1181-1203. [PMID: 37930306 DOI: 10.1093/plphys/kiad579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 11/07/2023]
Abstract
Drought stress is a key environmental factor limiting the productivity, quality, and geographic distribution of crops worldwide. Abscisic acid (ABA) plays an important role in plant drought stress responses, but the molecular mechanisms remain unclear. Here, we report an ABA-responsive bHLH transcription factor, MdbHLH160, which promotes drought tolerance in Arabidopsis (Arabidopsis thaliana) and apple (Malus domestica). Under drought conditions, MdbHLH160 is directly bound to the MdSOD1 (superoxide dismutase 1) promoter and activated its transcription, thereby triggering reactive oxygen species (ROS) scavenging and enhancing apple drought tolerance. MdbHLH160 also promoted MdSOD1 enzyme activity and accumulation in the nucleus through direct protein interactions, thus inhibiting excessive nuclear ROS levels. Moreover, MdbHLH160 directly upregulated the expression of MdDREB2A-like, a DREB (dehydration-responsive element binding factor) family gene that promotes apple drought tolerance. Protein degradation and ubiquitination assays showed that drought and ABA treatment stabilized MdbHLH160. The BTB protein MdBT2 was identified as an MdbHLH160-interacting protein that promoted MdbHLH160 ubiquitination and degradation, and ABA treatment substantially inhibited this process. Overall, our findings provide insights into the molecular mechanisms of ABA-modulated drought tolerance at both the transcriptional and post-translational levels via the ABA-MdBT2-MdbHLH160-MdSOD1/MdDREB2A-like cascade.
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Affiliation(s)
- Ke Mao
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Jie Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Yunxia Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Xin Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Lina Qiu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Quanlin Mei
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Na Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
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Chen G, Shu Y, Jian Z, Duan L, Mo Z, Liu R. The NtDEGP5 gene improves drought tolerance in tobacco (Nicotiana tabacum L.) by dampening plastid extracellular Ca 2+ and flagellin signaling and thereby reducing ROS production. PLANT MOLECULAR BIOLOGY 2023; 113:265-278. [PMID: 37985581 DOI: 10.1007/s11103-023-01388-8] [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: 04/24/2023] [Accepted: 10/09/2023] [Indexed: 11/22/2023]
Abstract
Tobacco is an essential cash crop, but drought has become a major factor in the decline of global tobacco production as a result of changes in the global climate. The HtrA protease is an oligomeric serine endopeptidase that responds to stress in plants. DEGP5 is a member of the gene family that encodes HtrA protease, which promotes plant adaptation to adversity. The aim of this study was to investigate the role and mechanism employed by the DEGP5 gene in response to drought stress in tobacco. NtDEGP5-overexpression lines were obtained by genetic transformation and the phenotypes and transcriptomes of NtDEGP5-overexpression lines and wild-type (K326) tobacco seedlings were compared under drought stress. The results demonstrated that plants overexpressing NtDEGP5 exhibited greater drought tolerance. The differentially expressed genes involved in the regulation of drought tolerance by DEGP5 were enriched in metabolic pathways, such as plant-pathogen interaction and glutathione metabolism, with the plant-pathogen interaction pathway having the most differentially expressed genes. An analysis of the plant-pathogen interaction pathway revealed that these genes contributed to the suppression of plastid extracellular Ca2+ signaling and flagellin signaling to inhibit reactive oxygen species production, and that lower levels of reactive oxygen species act as a signal to regulate the activation of the antioxidant system, further balancing the production and removal of reactive oxygen species in tobacco seedlings under drought stress. These findings suggest that the NtDEGP5 gene can enhance the drought tolerance of tobacco by regulating the homeostasis of reactive oxygen species by inhibiting extracellular plastids.
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Affiliation(s)
- Gang Chen
- Key Laboratory of Tobacco Quality Research, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Yanqi Shu
- Key Laboratory of Tobacco Quality Research, College of Tobacco, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Zilin Jian
- Key Laboratory of Tobacco Quality Research, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Lili Duan
- Key Laboratory of Tobacco Quality Research, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Zejun Mo
- Key Laboratory of Tobacco Quality Research, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Renxiang Liu
- Key Laboratory of Tobacco Quality Research, College of Tobacco, Guizhou University, Guiyang, 550025, Guizhou Province, China.
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Li H, Gui Y, Zhu K, Wei J, Zhang R, Yang R, Tang L, Zhou H, Liu X. Comparative transcriptomic analyses of two sugarcane Saccharum L. cultivars differing in drought tolerance. FRONTIERS IN PLANT SCIENCE 2023; 14:1243664. [PMID: 37885666 PMCID: PMC10598656 DOI: 10.3389/fpls.2023.1243664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023]
Abstract
Sugarcane (Saccharum spp.) is an important cash crop, and drought is an important factors limiting its yield. To study the drought resistance mechanism of sugarcane, the transcriptomes of two sugarcane varieties with different levels of drought resistance were compared under different water shortage levels. The results showed that the transcriptomes of the two varieties were significantly different. The differentially expressed genes were enriched in starch and sucrose metabolism, linoleic acid metabolism, glycolysis/gluconeogenesis, and glyoxylate and dicarboxylate metabolic pathways. Unique trend genes of the variety with strong drought resistance (F172) were significantly enriched in photosynthesis, mitogen-activated protein kinases signaling pathway, biosynthesis of various plant secondary metabolites, and cyanoamino acid metabolism pathways. Weighted correlation network analysis indicated that the blue4 and plum1 modules correlated with drought conditions, whereas the tan and salmon4 modules correlated with variety. The unique trend genes expressed in F172 and mapped to the blue4 module were enriched in photosynthesis, purine metabolism, starch and sucrose metabolism, beta-alanine metabolism, photosynthesis-antenna proteins, and plant hormone signal transduction pathways. The expression of genes involved in the photosynthesis-antenna protein and photosynthesis pathways decreased in response to water deficit, indicating that reducing photosynthesis might be a means for sugarcane to respond to drought stress. The results of this study provide insights into drought resistance mechanisms in plants, and the related genes and metabolic pathways identified may be helpful for sugarcane breeding in the future.
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Affiliation(s)
- Haibi Li
- Sugarcane Research Center of Chinese Academy of Agricultural Sciences, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, China
- Guangxi South Subtropical Agricultural Science Research Institute, Guangxi Academy of Agricultural Sciences, Chongzuo, China
| | - Yiyun Gui
- Sugarcane Research Center of Chinese Academy of Agricultural Sciences, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Kai Zhu
- Sugarcane Research Center of Chinese Academy of Agricultural Sciences, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Jinju Wei
- Sugarcane Research Center of Chinese Academy of Agricultural Sciences, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Ronghua Zhang
- Sugarcane Research Center of Chinese Academy of Agricultural Sciences, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Rongzhong Yang
- Sugarcane Research Center of Chinese Academy of Agricultural Sciences, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Liqiu Tang
- Guangxi South Subtropical Agricultural Science Research Institute, Guangxi Academy of Agricultural Sciences, Chongzuo, China
| | - Hui Zhou
- Sugarcane Research Center of Chinese Academy of Agricultural Sciences, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Xihui Liu
- Sugarcane Research Center of Chinese Academy of Agricultural Sciences, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning, China
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Long Q, Qiu S, Man J, Ren D, Xu N, Luo R. OsAAI1 Increases Rice Yield and Drought Tolerance Dependent on ABA-Mediated Regulatory and ROS Scavenging Pathway. RICE (NEW YORK, N.Y.) 2023; 16:35. [PMID: 37535208 PMCID: PMC10400514 DOI: 10.1186/s12284-023-00650-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 07/22/2023] [Indexed: 08/04/2023]
Abstract
In this study, we investigated the function of OsAAI1 in yield and drought tolerance by constructing overexpression line OE-OsAAI1 and mutant line osaai1. Bioinformatics analysis showed that the AAI gene-OsAAI1- belongs to the HPS_like subfamily of the AAI_LTSS superfamily, and OsAAI1 was localized in the nucleus. The expression of OsAAI1 was significantly induced by ABA and drought stress. OsAAI1 overexpression (OE19) significantly increased, and gene mutant (osaai1-1) repressed plant height, primary root length, lateral root number, grain size and yield in rice. Moreover, physiological and biochemical analyses showed that osaai1 was sensitive to drought stress, while OE19 enhanced the drought tolerance in rice. DAB and NBT staining revealed that under drought treatment, osaai1 accumulated a large amount of ROS compared with the wild type, while OE19 accumulated the least, and CAT, APX, GPX, GR activities were higher in OE19 and lower in osaai1, suggesting that OE19 improves rice tolerance to drought stress by enhancing ROS scavenging ability. OE19 also induce the expression of ABA-mediated regulatory pathway genes and enhance accumulation of ABA content in rice seedling. Predictably, OE19 displayed enhanced sensitivity to ABA, and ROS accumulation was significantly higher than in wild type and osaai1 under 3 µM ABA treatment. Thus, these results suggest that OsAAI1 is a positive regulator of rice yield and drought tolerance dependent on the ABA-mediated regulatory and ROS scavenging pathway.
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Affiliation(s)
- Qing Long
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Shichun Qiu
- Chongqing Three Gorges Academy of Agricultural Sciences, Wanzhou, Chongqing City, 404155, China
| | - Jianmin Man
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Denghong Ren
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Ning Xu
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou Province, China.
| | - Rui Luo
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou Province, China.
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Liu L, Zhang Y, Tang C, Shen Q, Fu J, Wang Q. Maize Transcription Factor ZmHsf28 Positively Regulates Plant Drought Tolerance. Int J Mol Sci 2023; 24:ijms24098079. [PMID: 37175787 PMCID: PMC10179534 DOI: 10.3390/ijms24098079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Identification of central genes governing plant drought tolerance is fundamental to molecular breeding and crop improvement. Here, maize transcription factor ZmHsf28 is identified as a positive regulator of plant drought responses. ZmHsf28 exhibited inducible gene expression in response to drought and other abiotic stresses. Overexpression of ZmHsf28 diminished drought effects in Arabidopsis and maize. Gene silencing of ZmHsf28 via the technology of virus-induced gene silencing (VIGS) impaired maize drought tolerance. Overexpression of ZmHsf28 increased jasmonate (JA) and abscisic acid (ABA) production in transgenic maize and Arabidopsis by more than two times compared to wild-type plants under drought conditions, while it decreased reactive oxygen species (ROS) accumulation and elevated stomatal sensitivity significantly. Transcriptomic analysis revealed extensive gene regulation by ZmHsf28 with upregulation of JA and ABA biosynthesis genes, ROS scavenging genes, and other drought related genes. ABA treatment promoted ZmHsf28 regulation of downstream target genes. Specifically, electrophoretic mobility shift assays (EMSA) and yeast one-hybrid (Y1H) assay indicated that ZmHsf28 directly bound to the target gene promoters to regulate their gene expression. Taken together, our work provided new and solid evidence that ZmHsf28 improves drought tolerance both in the monocot maize and the dicot Arabidopsis through the implication of JA and ABA signaling and other signaling pathways, shedding light on molecular breeding for drought tolerance in maize and other crops.
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Affiliation(s)
- Lijun Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuhan Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Chen Tang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Qinqin Shen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Jingye Fu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiang Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
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