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Gao H, Huang X, Lin P, Hu Y, Zheng Z, Yang Q. Transcriptome-associated metabolomics reveals the molecular mechanism of flavonoid biosynthesis in Desmodium styracifolium (Osbeck.) Merr under abiotic stress. FRONTIERS IN PLANT SCIENCE 2024; 15:1431148. [PMID: 39224850 PMCID: PMC11366580 DOI: 10.3389/fpls.2024.1431148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Accepted: 07/31/2024] [Indexed: 09/04/2024]
Abstract
The primary pharmacological components of Desmodium styracifolium (Osbeck.) Merr. are flavonoids, which have a broad range of pharmacological effects and are important in many applications. However, there have been few reports on the molecular mechanisms underlying flavonoid biosynthesis in the pharmacodynamic constituents of D. styracifolium. Flavonoid biosynthesis in D. styracifolium pharmacodynamic constituents has, however, been rarely studied. In this study, we investigated how salt stress, 6-BA (6-Benzylaminopurine) treatment, and PEG 6000-simulated drought stress affect flavonoid accumulation in D. styracifolium leaves. We integrated metabolomics and transcriptomic analysis to map the secondary metabolism regulatory network of D. styracifolium and identify key transcription factors involved in flavonoid biosynthesis. We then constructed overexpression vectors for the transcription factors and used them to transiently infiltrate Nicotiana benthamiana for functional validation. This experiment confirmed that the transcription factor DsMYB60 promotes the production of total flavonoids in Nicotiana tabacum L. leaves. This study lays the foundation for studying flavonoid biosynthesis in D. styracifolium at the molecular level. Furthermore, this study contributes novel insights into the molecular mechanisms involved in the biosynthesis of active ingredients in medicinal plants.
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Affiliation(s)
- Hongyang Gao
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xi Huang
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China
| | - Pengfei Lin
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China
- Shenzhen Traditional Chinese Medicine Manufacturing Innovation Ceter Co., Ltd., Shenzhen, China
| | - Yuqing Hu
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ziqi Zheng
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China
| | - Quan Yang
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Research Center on Good Agricultural Practice & Comprehensive Agricultural Development Engineering Technology of Cantonese Medicinal Materials, Guangzhou, China
- Comprehensive Experimental Station of Guangzhou, Chinese Material Medica, China Agriculture Research System (CARS-21-16), Guangzhou, China
- Key Laboratory of State Administration of Traditional Chinese Medicine for Production & Development of Cantonese Medicinal Materials, Guangzhou, China
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Shoaib N, Pan K, Mughal N, Raza A, Liu L, Zhang J, Wu X, Sun X, Zhang L, Pan Z. Potential of UV-B radiation in drought stress resilience: A multidimensional approach to plant adaptation and future implications. PLANT, CELL & ENVIRONMENT 2024; 47:387-407. [PMID: 38058262 DOI: 10.1111/pce.14774] [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: 08/16/2023] [Revised: 10/28/2023] [Accepted: 11/10/2023] [Indexed: 12/08/2023]
Abstract
The escalating impact of climate change and ultraviolet (UV) radiation is subjecting plants to unique combinations of UV-B and drought stress. These combined stressors could have additive, synergistic, or antagonistic effects, but the precise nature of these impacts remains uncertain, hampering our ability to predict plant adaptations approach towards stressors. Our analysis of various studies shows that UV-B or drought conditions detrimentally influence plant growth and health metrics by the enhanced generation of reactive oxygen species causing damage to lipids, proteins, carbohydrates and DNA. Further reducing biomass accumulation, plant height, photosynthetic efficiency, leaf area, and water transpiration, while enhancing stress-related symptoms. In response to UV-B radiation and drought stress, plants exhibit a notable up-regulation of specific acclimation-associated metabolites, including proline, flavonoids, anthocyanins, unsaturated fatty acids, and antioxidants. These metabolites play a pivotal role in conferring protection against environmental stresses. Their biosynthesis and functional roles are potentially modulated by signalling molecules such as hydrogen peroxide, abscisic acid, jasmonic acid, salicylic acid, and ethylene, all of which have associated genetic markers that further elucidate their involvement in stress response pathways. In comparison to single stress, the combination of UV-B and drought induces the plant defence responses and growth retardation which are less-than-additive. This sub-additive response, consistent across different study environments, suggests the possibility of a cross-resistance mechanism. Our outlines imply that the adverse effects of increased drought and UV-B could potentially be mitigated by cross-talk between UV-B and drought regimes utilizing a multidimensional approach. This crucial insight could contribute significantly to refining our understanding of stress tolerance in the face of ongoing global climate change.
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Affiliation(s)
- Noman Shoaib
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Kaiwen Pan
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Nishbah Mughal
- Engineering Research Centre for Crop Strip Intercropping System, Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - Ali Raza
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Liling Liu
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Juan Zhang
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiaogang Wu
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Xiaoming Sun
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Lin Zhang
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Zhifen Pan
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
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Espley RV, Jaakola L. The role of environmental stress in fruit pigmentation. PLANT, CELL & ENVIRONMENT 2023; 46:3663-3679. [PMID: 37555620 DOI: 10.1111/pce.14684] [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: 05/31/2023] [Revised: 07/24/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023]
Abstract
For many fruit crops, the colour of the fruit outwardly defines its eating quality. Fruit pigments provide reproductive advantage for the plant as well as providing protection against unfavourable environmental conditions and pathogens. For consumers these colours are considered attractive and provide many of the dietary benefits derived from fruits. In the majority of species, the main pigments are either carotenoids and/or anthocyanins. They are produced in the fruit as part of the ripening process, orchestrated by phytohormones and an ensuing transcriptional cascade, culminating in pigment biosynthesis. Whilst this is a controlled developmental process, the production of pigments is also attuned to environmental conditions such as light quantity and quality, availability of water and ambient temperature. If these factors intensify to stress levels, fruit tissues respond by increasing (or ceasing) pigment production. In many cases, if the stress is not severe, this can have a positive outcome for fruit quality. Here, we focus on the principal environmental factors (light, temperature and water) that can influence fruit colour.
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Affiliation(s)
- Richard V Espley
- Department of New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Ltd, Auckland, New Zealand
| | - Laura Jaakola
- Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway
- Norwegian Institute of Bioeconomy Research (NIBIO), Ås, Norway
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Ren Y, Zhang S, Zhao Q, Wu Y, Li H. The CsMYB123 and CsbHLH111 are involved in drought stress-induced anthocyanin biosynthesis in Chaenomeles speciosa. MOLECULAR HORTICULTURE 2023; 3:25. [PMID: 37990285 PMCID: PMC10664276 DOI: 10.1186/s43897-023-00071-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/16/2023] [Indexed: 11/23/2023]
Abstract
Drought stress has been demonstrated to enhance the biosynthesis of anthocyanins in the leaves, resulting in an increased aesthetic appeal. However, the molecular mechanisms underlying drought-induced anthocyanin biosynthesis in Chaenomeles speciosa remain unclear. In this study, the metabolites of C. speciosa leaves were analyzed, and it was found that the content of cyanidin-3-O-rutinoside increased significantly under drought stress. The differentially expressed genes CsMYB123 and CsbHLH111 were isolated by transcriptomics data analysis and gene cloning, and gene overexpression and VIGS experiments verified that both play important roles in anthocyanin biosynthesis. Subsequently, Y1H and Dual-luciferase reporter assay showed that CsMYB123 binds to the promoters of anthocyanin biosynthesis-related structural genes (such as CsCHI, CsF3H, and CsANS), while CsbHLH111 was shown to bind to the promoter of CsCHI, positively regulating its activity. Furthermore, BIFC and Y2H assays unveiled potential protein-protein interactions between CsMYB123 and CsbHLH111 at the cell nucleus. Collectively, these results shed light on the critical roles played by CsMYB123 and CsbHLH111 in anthocyanin biosynthesis, thus providing a valuable insight into understanding the molecular mechanisms of how the MYB and bHLH genes regulate anthocyanin biosynthesis in the process of leaf coloration in C. speciosa.
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Affiliation(s)
- Yanshen Ren
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Shuangyu Zhang
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Qianyi Zhao
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yang Wu
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Houhua Li
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Kaur S, Tiwari V, Kumari A, Chaudhary E, Sharma A, Ali U, Garg M. Protective and defensive role of anthocyanins under plant abiotic and biotic stresses: An emerging application in sustainable agriculture. J Biotechnol 2023; 361:12-29. [PMID: 36414125 DOI: 10.1016/j.jbiotec.2022.11.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 11/11/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
Abstract
Global warming is the major cause of abiotic and biotic stresses that reduce plant growth and productivity. Various stresses such as drought, low temperature, pathogen attack, high temperature and salinity all negatively influence plant growth and development. Due to sessile beings, they cannot escape from these adverse conditions. However, plants develop a variety of systems that can help them to tolerate, resist, and escape challenges imposed by the environment. Among them, anthocyanins are a good example of stress mitigators. They aid plant growth and development by increasing anthocyanin accumulation, which leads to increased resistance to various biotic and abiotic stresses. In the primary metabolism of plants, anthocyanin improves the photosynthesis rate, membrane permeability, up-regulates many enzyme transcripts related to anthocyanin biosynthesis, and optimizes nutrient uptake. Generally, the most important genes of the anthocyanin biosynthesis pathways were up-regulated under various abiotic and biotic stresses. The present review will highlight anthocyanin mediated stress tolerance in plants under various abiotic and biotic stresses. We have also compiled literature related to genetically engineer stress-tolerant crops generated using over-expression of genes belonging to anthocyanin biosynthetic pathway or its regulation. To sum up, the present review provides an up-to-date description of various signal transduction mechanisms that modulate or enhance anthocyanin accumulation under stress conditions.
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Affiliation(s)
- Satveer Kaur
- National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India; Department of Biotechnology, Panjab University, Chandigarh, India.
| | - Vandita Tiwari
- National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
| | - Anita Kumari
- National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India; University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Era Chaudhary
- National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
| | - Anjali Sharma
- National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
| | - Usman Ali
- National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
| | - Monika Garg
- National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India.
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