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Liu D, Cui W, Bo C, Wang R, Zhu Y, Duan Y, Wang D, Xue J, Xue T. PtWRKY2, a WRKY transcription factor from Pinellia ternata confers heat tolerance in Arabidopsis. Sci Rep 2024; 14:13807. [PMID: 38877055 PMCID: PMC11178784 DOI: 10.1038/s41598-024-64560-0] [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: 03/03/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024] Open
Abstract
High temperatures are a major stress factor that limit the growth of Pinellia ternata. WRKY proteins widely distribute in plants with the important roles in plant growth and stress responses. However, WRKY genes have not been identified in P. ternata thus far. In this study, five PtWRKYs with four functional subgroups were identified in P. ternata. One group III WRKY transcription factor, PtWRKY2, was strongly induced by high temperatures, whereas the other four PtWRKYs were suppressed. Analysis of transcription factor characteristics revealed that PtWRKY2 localized to the nucleus and specifically bound to W-box elements without transcriptional activation activity. Overexpression of PtWRKY2 increased the heat tolerance of Arabidopsis, as shown by the higher percentage of seed germination and survival rate, and the longer root length of transgenic lines under high temperatures compared to the wild-type. Moreover, PtWRKY2 overexpression significantly decreased reactive oxygen species accumulation by increasing the catalase, superoxide dismutase, and peroxidase activities. Furthermore, the selected heat shock-associated genes, including five transcription factors (HSFA1A, HSFA7A, bZIP28, DREB2A, and DREB2B), two heat shock proteins (HSP70 and HSP17.4), and three antioxidant enzymes (POD34, CAT1, and SOD1), were all upregulated in transgenic Arabidopsis. The study identifies that PtWRKY2 functions as a key transcriptional regulator in the heat tolerance of P. ternata, which might provide new insights into the genetic improvement of P. ternata.
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Affiliation(s)
- Dan Liu
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, Huaibei, China
| | - Wanning Cui
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
- Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, Huaibei, China
| | - Chen Bo
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, Huaibei, China
- Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, Huaibei, China
| | - Ru Wang
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
- Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, Huaibei, China
| | - Yanfang Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, Huaibei, China
| | - Yongbo Duan
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, Huaibei, China
| | - Dexin Wang
- College of Agriculture and Engineering, Heze University, Heze, 274015, China.
| | - Jianping Xue
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China.
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, Huaibei, China.
- Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, Huaibei, China.
| | - Tao Xue
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China.
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, Huaibei, China.
- Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, Huaibei, China.
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Parveen K, Saddique MAB, Ali Z, Ur Rehman S, Zaib-Un-Nisa, Khan Z, Waqas M, Munir MZ, Hussain N, Muneer MA. Genome-wide analysis of Glutathione peroxidase (GPX) gene family in Chickpea (Cicer arietinum L.) under salinity stress. Gene 2024; 898:148088. [PMID: 38104951 DOI: 10.1016/j.gene.2023.148088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/23/2023] [Accepted: 12/13/2023] [Indexed: 12/19/2023]
Abstract
Chickpea is the second most widely grown legume in the world. Its cultivation is highly affected by saline soils. Salt stress damages its all growth stages from germination to maturity. It has a huge genetic diversity containing adaptation loci that can help produce salt-tolerant cultivars. The glutathione peroxidase (GPX) gene family plays an important role in regulating plant response to abiotic stimuli and protects cells from oxidative damage. In current research, the role of GPX genes is studied for inducing salt tolerance in chickpea. This study identifies the GPX gene family in Cicer arietinum. In response to the NaCl stress, the gene expression profiles of CaGPX3 were examined using real-time qRT-PCR. The results of phylogenetic analysis show that CaGPX genes have an evolutionary relationship with monocots, dicots, chlorophytes, and angiosperms. Gene structure analysis showed that CaGPX3, CaGPX4, and CaGPX5 have six, CaGPX2 has five, and CaGPX1 contains 9 exons. According to the Ka and Ks analysis chickpea has one pair of duplicated genes of GPX and the duplication was tandem with negative (purifying) selection Ka < Ks (<1). In-silico gene expression analysis revealed that CaGPX3 is a salt stress-responsive gene among all other five GPX members in chickpea. The qRT-PCR results showed that the CaGPX3 gene expression was co-ordinately regulated under salt stress conditions, confirming CaGPX3's key involvement in salt tolerance.
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Affiliation(s)
- Kauser Parveen
- Institute of Plant Breeding and Biotechnology, MNS University of Agriculture Multan, Pakistan
| | | | - Zulfiqar Ali
- Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan; Programs and Projects Department, Islamic Organization for Food Security, Astana, Kazakhstan
| | - Shoaib Ur Rehman
- Institute of Plant Breeding and Biotechnology, MNS University of Agriculture Multan, Pakistan; SINO-PAK Joint Research Laboratory, Institute of Plant Breeding and Biotechnology, MNS University of Agriculture Multan, Pakistan.
| | - Zaib-Un-Nisa
- Cotton Research Institute, Multan, Punjab, Pakistan
| | - Zulqurnain Khan
- Institute of Plant Breeding and Biotechnology, MNS University of Agriculture Multan, Pakistan
| | - Muhammad Waqas
- Pakistan Agricultural Research Council, Arid Zone Research Center, Pakistan Agricultural Research Council, Dera Ismail Khan, Pakistan
| | - Muhammad Zeeshan Munir
- School of Environment and Energy, Peking University Shenzhen Graduate School, 2199 Lishui Rd., Shenzhen 518055, China
| | - Niaz Hussain
- Arid Zone Research Institute Bhakkar, Punjab, Pakistan
| | - Muhammad Atif Muneer
- International Magnesium Institute, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Shen L, Xia X, Zhang L, Yang S, Yang X. Genome-Wide Identification of Catalase Gene Family and the Function of SmCAT4 in Eggplant Response to Salt Stress. Int J Mol Sci 2023; 24:16979. [PMID: 38069301 PMCID: PMC10706941 DOI: 10.3390/ijms242316979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Salinity is an important abiotic stress, damaging plant tissues by causing a burst of reactive oxygen species (ROS). Catalase (CAT) enzyme coded by Catalase (CAT) genes are potent in reducing harmful ROS and hydrogen peroxide (H2O2) produced. Herein, we performed bioinformatics and functional characterization of four SmCAT genes, retrieved from the eggplant genome database. Evolutionary analysis CAT genes revealed that they are divided into subgroups I and II. The RT-qPCR analysis of SmCAT displayed a differential expression pattern in response to abiotic stresses. All the CAT proteins of eggplant were localized in the peroxisome, except for SmCAT4, which localized in the cytomembrane and nucleus. Silencing of SmCAT4 compromised the tolerance of eggplant to salt stress. Suppressed expression levels of salt stress defense related genes SmTAS14 and SmDHN1, as well as increase of H2O2 content and decrease of CAT enzyme activity was observed in the SmCAT4 silenced eggplants. Our data provided insightful knowledge of CAT gene family in eggplant. Positive regulation of eggplant response to salinity by SmCAT4 provides resource for future breeding programs.
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Affiliation(s)
| | | | | | | | - Xu Yang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (L.S.); (X.X.); (L.Z.); (S.Y.)
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