Drought stress-mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants: Insights from gene-specific and metabolite-level analyses
In this research, we investigated the impact of drought stress on secondary metabolite production in cumin plants and the associated transcriptional changes in biosynthetic genes. Drought stress induced a significant increase in the levels of beta-carotene, lycopene, terpenes, anthocyanin, phenolic...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Plant Stress |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667064X23001082 |
| _version_ | 1827609410117042176 |
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| author | Sepideh Ghasemi Hassan Hassani Kumleh Mojtaba Kordrostami Mohammad Hossein Rezadoost |
| author_facet | Sepideh Ghasemi Hassan Hassani Kumleh Mojtaba Kordrostami Mohammad Hossein Rezadoost |
| author_sort | Sepideh Ghasemi |
| collection | DOAJ |
| description | In this research, we investigated the impact of drought stress on secondary metabolite production in cumin plants and the associated transcriptional changes in biosynthetic genes. Drought stress induced a significant increase in the levels of beta-carotene, lycopene, terpenes, anthocyanin, phenolic compounds, flavonoids, and alkaloids, indicating an adaptive metabolic shift in response to adverse conditions. Concurrently, there was an upregulation in the expression of key biosynthetic genes, including Phenylalanine ammonia-lyase (PAL), 3-deoxy-7-phosphoheptulonate synthase (DAHP synthase), Deoxy xylose phosphate reductase (DXS), 3‑hydroxy-3-methylglutaryl-CoA reductase (HMGR), and Geranyl diphosphate synthase (GPPS), which corroborated the metabolite findings. Notably, while most secondary metabolites exhibited an increasing trend under drought stress, flavonoids displayed a disproportionate elevation, even as there was an overall decrease in phenolic compounds and other metabolites. This observation suggests the potential activation of alternative flavonoid synthesis pathways or the conversion of phenolic compounds to flavonoids during stress. Strong correlations were identified between the expression of biosynthetic genes and their respective metabolite concentrations, underscoring the central role of transcriptional regulation in secondary metabolite synthesis during drought stress. Collectively, our results provide a comprehensive understanding of the transcriptional and metabolic adaptations of cumin plants when exposed to drought stress. Such insights can be pivotal in designing drought-resilient crops, with significant implications for food security amidst escalating climatic challenges. |
| first_indexed | 2024-03-09T07:32:59Z |
| format | Article |
| id | doaj.art-239d271ba1bd48aeb0c6a155870827b6 |
| institution | Directory Open Access Journal |
| issn | 2667-064X |
| language | English |
| last_indexed | 2024-03-09T07:32:59Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Plant Stress |
| spelling | doaj.art-239d271ba1bd48aeb0c6a155870827b62023-12-03T05:43:32ZengElsevierPlant Stress2667-064X2023-12-0110100241Drought stress-mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants: Insights from gene-specific and metabolite-level analysesSepideh Ghasemi0Hassan Hassani Kumleh1Mojtaba Kordrostami2Mohammad Hossein Rezadoost3Department of Agricultural Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, IranDepartment of Agricultural Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran; Corresponding authors.Department of Plant Breeding, Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute (NSTRI), Karaj, Iran; Corresponding authors.Department of Agricultural Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, IranIn this research, we investigated the impact of drought stress on secondary metabolite production in cumin plants and the associated transcriptional changes in biosynthetic genes. Drought stress induced a significant increase in the levels of beta-carotene, lycopene, terpenes, anthocyanin, phenolic compounds, flavonoids, and alkaloids, indicating an adaptive metabolic shift in response to adverse conditions. Concurrently, there was an upregulation in the expression of key biosynthetic genes, including Phenylalanine ammonia-lyase (PAL), 3-deoxy-7-phosphoheptulonate synthase (DAHP synthase), Deoxy xylose phosphate reductase (DXS), 3‑hydroxy-3-methylglutaryl-CoA reductase (HMGR), and Geranyl diphosphate synthase (GPPS), which corroborated the metabolite findings. Notably, while most secondary metabolites exhibited an increasing trend under drought stress, flavonoids displayed a disproportionate elevation, even as there was an overall decrease in phenolic compounds and other metabolites. This observation suggests the potential activation of alternative flavonoid synthesis pathways or the conversion of phenolic compounds to flavonoids during stress. Strong correlations were identified between the expression of biosynthetic genes and their respective metabolite concentrations, underscoring the central role of transcriptional regulation in secondary metabolite synthesis during drought stress. Collectively, our results provide a comprehensive understanding of the transcriptional and metabolic adaptations of cumin plants when exposed to drought stress. Such insights can be pivotal in designing drought-resilient crops, with significant implications for food security amidst escalating climatic challenges.http://www.sciencedirect.com/science/article/pii/S2667064X23001082CuminDroughtPhenylalanine ammonia-lyasePhenolic compoundsTerpenes |
| spellingShingle | Sepideh Ghasemi Hassan Hassani Kumleh Mojtaba Kordrostami Mohammad Hossein Rezadoost Drought stress-mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants: Insights from gene-specific and metabolite-level analyses Plant Stress Cumin Drought Phenylalanine ammonia-lyase Phenolic compounds Terpenes |
| title | Drought stress-mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants: Insights from gene-specific and metabolite-level analyses |
| title_full | Drought stress-mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants: Insights from gene-specific and metabolite-level analyses |
| title_fullStr | Drought stress-mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants: Insights from gene-specific and metabolite-level analyses |
| title_full_unstemmed | Drought stress-mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants: Insights from gene-specific and metabolite-level analyses |
| title_short | Drought stress-mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants: Insights from gene-specific and metabolite-level analyses |
| title_sort | drought stress mediated alterations in secondary metabolites and biosynthetic gene expression in cumin plants insights from gene specific and metabolite level analyses |
| topic | Cumin Drought Phenylalanine ammonia-lyase Phenolic compounds Terpenes |
| url | http://www.sciencedirect.com/science/article/pii/S2667064X23001082 |
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