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Mishra SK, Chaudhary C, Baliyan S, Poonia AK, Sirohi P, Kanwar M, Gazal S, Kumari A, Sircar D, Germain H, Chauhan H. Heat-stress-responsive HvHSFA2e gene regulates the heat and drought tolerance in barley through modulation of phytohormone and secondary metabolic pathways. PLANT CELL REPORTS 2024; 43:172. [PMID: 38874775 DOI: 10.1007/s00299-024-03251-6] [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: 04/30/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024]
Abstract
KEY MESSAGE The heat stress transcription factor HSFA2e regulates both temperature and drought response via hormonal and secondary metabolism alterations. High temperature and drought are the primary yield-limiting environmental constraints for staple food crops. Heat shock transcription factors (HSF) terminally regulate the plant abiotic stress responses to maintain growth and development under extreme environmental conditions. HSF genes of subclass A2 predominantly express under heat stress (HS) and activate the transcriptional cascade of defense-related genes. In this study, a highly heat-inducible HSF, HvHSFA2e was constitutively expressed in barley (Hordeum vulgare L.) to investigate its role in abiotic stress response and plant development. Transgenic barley plants displayed enhanced heat and drought tolerance in terms of increased chlorophyll content, improved membrane stability, reduced lipid peroxidation, and less accumulation of ROS in comparison to wild-type (WT) plants. Transcriptome analysis revealed that HvHSFA2e positively regulates the expression of abiotic stress-related genes encoding HSFs, HSPs, and enzymatic antioxidants, contributing to improved stress tolerance in transgenic plants. The major genes of ABA biosynthesis pathway, flavonoid, and terpene metabolism were also upregulated in transgenics. Our findings show that HvHSFA2e-mediated upregulation of heat-responsive genes, modulation in ABA and flavonoid biosynthesis pathways enhance drought and heat stress tolerance.
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Affiliation(s)
- Sumit Kumar Mishra
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
- Magadh University, BodhGaya, 824234, Bihar, India
| | - Chanderkant Chaudhary
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Suchi Baliyan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Anuj Kumar Poonia
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
- Department of Biotechnology, University Institute of Biotechnology, Chandigarh University, Mohali, India
| | - Parul Sirohi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Meenakshi Kanwar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Snehi Gazal
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, 3351 Bd des Forges, Trois-Rivières, QC, G9A 5H9, Canada
| | - Annu Kumari
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Debabrata Sircar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Hugo Germain
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, 3351 Bd des Forges, Trois-Rivières, QC, G9A 5H9, Canada
| | - Harsh Chauhan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India.
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Zhang P, Wu X, Chen Y, Ji G, Ma X, Zhang Y, Xiang J, Wang Y, Wang Z, Li L, Chen H, Zhang Y. Comparative Transcriptome Combined with Morphophysiological Analyses Revealed Carotenoid Biosynthesis for Differential Chilling Tolerance in Two Contrasting Rice (Oryza sativa L.) Genotypes. RICE (NEW YORK, N.Y.) 2023; 16:52. [PMID: 38006430 PMCID: PMC10676345 DOI: 10.1186/s12284-023-00669-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/16/2023] [Indexed: 11/27/2023]
Abstract
Early spring cold spells can lead to leaf chlorosis during the rice seedling greening process. However, the physiological and molecular mechanisms underlying the rice greening process under low-temperature conditions remain unknown. In this study, comparative transcriptome and morphophysiological analyses were performed to investigate the mechanisms mediating the responses of the Koshihikari (Kos) and Kasalath (Kas) rice cultivars to chilling stress. According to their growth-related traits, electrolyte leakage, and chlorophyll fluorescence parameters, Kos was more tolerant to low-temperature stress than Kas. Moreover, chloroplast morphology was more normal (e.g., oval) in Kos than in Kas at 17 °C. The comparative transcriptome analysis revealed 610 up-regulated differentially expressed genes that were common to all four comparisons. Furthermore, carotenoid biosynthesis was identified as a critical pathway for the Kos response to chilling stress. The genes in the carotenoid biosynthesis pathway were expressed at higher levels in Kos than in Kas at 17 °C, which was in accordance with the higher leaf carotenoid content in Kos than in Kas. The lycopene β-cyclase and lycopene ε-cyclase activities increased more in Kos than in Kas. Additionally, the increases in the violaxanthin de-epoxidase and carotenoid hydroxylase activities in Kos seedlings resulted in the accumulation of zeaxanthin and lutein and mitigated the effects of chilling stress on chloroplasts. These findings have clarified the molecular mechanisms underlying the chilling tolerance of rice seedlings during the greening process.
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Affiliation(s)
- Peng Zhang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, 056009, Hebei, People's Republic of China
| | - Xiang Wu
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, 056009, Hebei, People's Republic of China
| | - Yulin Chen
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China
| | - Guangmei Ji
- Guizhou Rice Research Institute, Guiyang, 550009, Guizhou, People's Republic of China
| | - Xinling Ma
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China
| | - Yuping Zhang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China
| | - Jing Xiang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China
| | - Yaliang Wang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China
| | - Zhigang Wang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China
| | - Liangtao Li
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, 056009, Hebei, People's Republic of China.
| | - Huizhe Chen
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China.
| | - Yikai Zhang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, People's Republic of China.
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Wang X, Du L, Wang W, Zhang Z, Wu Y, Wang Y. Functional identification of ZDS gene in apple ( Malus halliana) and demonstration of it's role in improving saline-alkali stress tolerance. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:799-813. [PMID: 37520810 PMCID: PMC10382441 DOI: 10.1007/s12298-023-01333-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 08/01/2023]
Abstract
Carotenoids are powerful antioxidants that mediate transfer of electrons, directly affect abiotic stress responses in plants through regulating activity of antioxidant enzymes. ζ-Carotene desaturase (ZDS) is a key enzyme in carotenoid biosynthesis pathway, which can catalyze ζ-carotene to form lycopene to regulate carotenoid biosynthesis and accumulation. However, the mechanism of its regulation of saline-alkali stress remains unclear. In this research, based on transcriptomic analysis of Malus halliana with a apple rootstock, we screened out ZDS gene (LOC103451012), with significantly high expression by saline-alkali stress, whose expression in the leaves was 10.8-fold than that of the control (0 h) under 48 h of stress. Subsequently, the MhZDS gene was isolated from M. halliana, and transgenic Arabidopsis thaliana, tobacco, and apple calli were successfully obtained through agrobacterium-mediated genetic transformation. We found that overexpression of MhZDS enhanced the tolerance of A. thaliana, tobacco and apple calli under saline-alkali stress and caused a variety of physiological and biochemical changes: compared with wild-type, transgenic plants grew better under saline stress and MhZDS-OE lines showed higher chlorophyll content, POD, SOD, CAT activities and proline content, lower electrical conductivity and MDA content. These results indicate that MhZDS plays an important role in plant resistance to saline-alkali stress, providing excellent resistance genes for the regulatory network of salinity stress response in apples and provide a theoretical basis for the breeding of apple varieties with strong saline-alkali resistance. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01333-5.
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Affiliation(s)
- Xiu Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Lei Du
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Wanxia Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Zhongxing Zhang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Yuxia Wu
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Yanxiu Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
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Sun M, Xu QY, Zhu ZP, Liu PZ, Yu JX, Guo YX, Tang S, Yu ZF, Xiong AS. AgMYB5, an MYB transcription factor from celery, enhanced β-carotene synthesis and promoted drought tolerance in transgenic Arabidopsis. BMC PLANT BIOLOGY 2023; 23:151. [PMID: 36941578 PMCID: PMC10029358 DOI: 10.1186/s12870-023-04157-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Water shortage caused by global warming seriously affects the yield and quality of vegetable crops. β-carotene, the lipid-soluble natural product with important pharmacological value, is abundant in celery. Transcription factor MYB family extensively disperses in plants and plays regulatory roles in carotenoid metabolism and water scarcity response. RESULTS Here, the AgMYB5 gene encoding 196 amino acids was amplified from celery cv. 'Jinnanshiqin'. In celery, the expression of AgMYB5 exhibited transactivation activity, tissue specificity, and drought-condition responsiveness. Further analysis proved that ectopic expression of AgMYB5 increased β-carotene content and promoted drought tolerance in transgenic Arabidopsis thaliana. Moreover, AgMYB5 expression promoted β-carotene biosynthesis by triggering the expression of AtCRTISO and AtLCYB, which in turn increased antioxidant enzyme activities, and led to the decreased contents of H2O2 and MDA, and the inhibition of O2- generation. Meanwhile, β-carotene accumulation promoted endogenous ABA biosynthesis of transgenic Arabidopsis, which resulted in ABA-induced stomatal closing and delayed water loss. In addition, ectopic expression of AgMYB5 increased expression levels of AtERD1, AtP5CS1, AtRD22, and AtRD29. CONCLUSIONS The findings indicated that AgMYB5 up-regulated β-carotene biosynthesis and drought tolerance of Arabidopsis.
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Affiliation(s)
- Miao Sun
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002, Jiangsu, China
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- College of Food Science and Technology, Nanjing Agricultural University, Jiangsu, 210095, China
| | - Qin-Yi Xu
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002, Jiangsu, China
| | - Zhi-Peng Zhu
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002, Jiangsu, China
| | - Pei-Zhuo Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Jian-Xiang Yu
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002, Jiangsu, China
| | - Yao-Xian Guo
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002, Jiangsu, China
| | - Shu Tang
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002, Jiangsu, China
| | - Zhi-Fang Yu
- College of Food Science and Technology, Nanjing Agricultural University, Jiangsu, 210095, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
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Wang XJ, Luo Q, Li T, Meng PH, Pu YT, Liu JX, Zhang J, Liu H, Tan GF, Xiong AS. Origin, evolution, breeding, and omics of Apiaceae: a family of vegetables and medicinal plants. HORTICULTURE RESEARCH 2022; 9:uhac076. [PMID: 38239769 PMCID: PMC10795576 DOI: 10.1093/hr/uhac076] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/17/2022] [Indexed: 01/22/2024]
Abstract
Many of the world's most important vegetables and medicinal crops, including carrot, celery, coriander, fennel, and cumin, belong to the Apiaceae family. In this review, we summarize the complex origins of Apiaceae and the current state of research on the family, including traditional and molecular breeding practices, bioactive compounds, medicinal applications, nanotechnology, and omics research. Numerous molecular markers, regulatory factors, and functional genes have been discovered, studied, and applied to improve vegetable and medicinal crops in Apiaceae. In addition, current trends in Apiaceae application and research are also briefly described, including mining new functional genes and metabolites using omics research, identifying new genetic variants associated with important agronomic traits by population genetics analysis and GWAS, applying genetic transformation, the CRISPR-Cas9 gene editing system, and nanotechnology. This review provides a reference for basic and applied research on Apiaceae vegetable and medicinal plants.
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Affiliation(s)
- Xiao-Jing Wang
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guizhou 550025, China
| | - Qing Luo
- Institute of Horticulture, Guizhou Academy of Agricultural Sciences, Guizhou 550006, China
| | - Tong Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Ping-Hong Meng
- Institute of Horticulture, Guizhou Academy of Agricultural Sciences, Guizhou 550006, China
| | - Yu-Ting Pu
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guizhou 550025, China
| | - Jie-Xia Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jian Zhang
- College of Agronomy, Jilin Agricultural University, Changchun 210095, China
| | - Hui Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Guo-Fei Tan
- Institute of Horticulture, Guizhou Academy of Agricultural Sciences, Guizhou 550006, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
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