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An X, Liao Y, Yu Y, Fan J, Wan J, Wei Y, Ouyang Z. Effects of MhMYB1 and MhMYB2 transcription factors on the monoterpenoid biosynthesis pathway in l-menthol chemotype of Mentha haplocalyx Briq. PLANTA 2024; 260:3. [PMID: 38767800 DOI: 10.1007/s00425-024-04441-y] [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: 03/15/2024] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
MAIN CONCLUSION Transcription factors MhMYB1 and MhMYB2 correlate with monoterpenoid biosynthesis pathway in l-menthol chemotype of Mentha haplocalyx Briq, which could affect the contents of ( -)-menthol and ( -)-menthone. Mentha haplocalyx Briq., a plant with traditional medicinal and edible uses, is renowned for its rich essential oil content. The distinct functional activities and aromatic flavors of mint essential oils arise from various chemotypes. While the biosynthetic pathways of the main monoterpenes in mint are well understood, the regulatory mechanisms governing different chemotypes remain inadequately explored. In this investigation, we identified and cloned two transcription factor genes from the M. haplocalyx MYB family, namely MhMYB1 (PP236792) and MhMYB2 (PP236793), previously identified by our research group. Bioinformatics analysis revealed that MhMYB1 possesses two conserved MYB domains, while MhMYB2 contains a conserved SANT domain. Yeast one-hybrid (Y1H) analysis results demonstrated that both MhMYB1 and MhMYB2 interacted with the promoter regions of MhMD and MhPR, critical enzymes in the monoterpenoid biosynthesis pathway of M. haplocalyx. Subsequent virus-induced gene silencing (VIGS) of MhMYB1 and MhMYB2 led to a significant reduction (P < 0.01) in the relative expression levels of MhMD and MhPR genes in the VIGS groups of M. haplocalyx. In addition, there was a noteworthy decrease (P < 0.05) in the contents of ( -)-menthol and ( -)-menthone in the essential oil of M. haplocalyx. These findings suggest that MhMYB1 and MhMYB2 transcription factors play a positive regulatory role in ( -)-menthol biosynthesis, consequently influencing the essential oil composition in the l-menthol chemotype of M. haplocalyx. This study serves as a pivotal foundation for unraveling the regulatory mechanisms governing monoterpenoid biosynthesis in different chemotypes of M. haplocalyx.
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Affiliation(s)
- Xin An
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yangzhen Liao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yifan Yu
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Jiahe Fan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jingqiong Wan
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Yuan Wei
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Zhen Ouyang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China.
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Chen X, Li Y, Pang Y, Shen W, Chen Q, Liu L, Luo X, Chen Z, Li X, Li Y, Zhang Y, Huang M, Yuan C, Wang D, Guan L, Liu Y, Yang Q, Chen H, Wu H, Yu F. A comparative analysis of morphology, microstructure, and volatile metabolomics of leaves at varied developmental stages in Ainaxiang ( Blumea balsamifera (Linn.) DC.). FRONTIERS IN PLANT SCIENCE 2023; 14:1285616. [PMID: 38034556 PMCID: PMC10682096 DOI: 10.3389/fpls.2023.1285616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/26/2023] [Indexed: 12/02/2023]
Abstract
Introduction Ainaxiang (Blumea balsamifera (Linn.) DC.) is cultivated for the extraction of (-)-borneol and other pharmaceutical raw materials due to its abundant volatile oil. However, there is limited knowledge regarding the structural basis and composition of volatile oil accumulation in fresh B. balsamifera leaves. Methods To address this problem, we compare the fresh leaves' morphology, microstructure, and volatile metabonomic at different development stages, orderly defined from the recently unfolded young stage (S1) to the senescent stage (S4). Results and discussion Distinct differences were observed in the macro-appearance and microstructure at each stage, particularly in the B. balsamifera glandular trichomes (BbGTs) distribution. This specialized structure may be responsible for the accumulation of volatile matter. 213 metabolites were identified through metabolomic analysis, which exhibited spatiotemporal accumulation patterns among different stages. Notably, (-)-borneol was enriched at S1, while 10 key odor metabolites associated with the characteristic balsamic, borneol, fresh, and camphor aromas of B. balsamifera were enriched in S1 and S2. Ultra-microstructural examination revealed the involvement of chloroplasts, mitochondria, endoplasmic reticulum, and vacuoles in the synthesizing, transporting, and storing essential oils. These findings confirm that BbGTs serve as the secretory structures in B. balsamifera, with the population and morphology of BbGTs potentially serving as biomarkers for (-)-borneol accumulation. Overall, young B. balsamifera leaves with dense BbGTs represent a rich (-)-borneol source, while mesophyll cells contribute to volatile oil accumulation. These findings reveal the essential oil accumulation characteristics in B. balsamifera, providing a foundation for further understanding.
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Affiliation(s)
- Xiaolu Chen
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Yanqun Li
- Medicinal Plants Research Center, South China Agricultural University, Guangzhou, China
| | - Yuxin Pang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Wanyun Shen
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Qilei Chen
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Liwei Liu
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xueting Luo
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
- College of Tropical Crops, Yunnan Agricultural University, Puer, China
| | - Zhenxia Chen
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Xingfei Li
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Yulan Li
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Yingying Zhang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Mei Huang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Chao Yuan
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Dan Wang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Lingliang Guan
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
| | - Yuchen Liu
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Quan Yang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Hubiao Chen
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Hong Wu
- Medicinal Plants Research Center, South China Agricultural University, Guangzhou, China
| | - Fulai Yu
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Biology and Cultivation of Herb Medicine (Haikou), Ministry of Agriculture and Rural Affairs/Hainan Provincial Engineering Research Center for Blumea balsamifera, Haikou, China
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Siddiqui MH, Kalaji HM, Zhang Z, Ma X. Nanoparticles in environment and plant system: A boon or bane. CHEMOSPHERE 2022; 308:136320. [PMID: 36075359 DOI: 10.1016/j.chemosphere.2022.136320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Hazem M Kalaji
- Institute of Technology and Life Sciences - National Research Institute, Falenty, Al. Hrabska 3, 05-090, Raszyn, Poland; Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences SGGW, 159 Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Zhiyong Zhang
- Multidisciplinary Research Center, Institute of High Energy Physics, The Chinese Academy of Sciences, P. O. Box 918, Beijing, 100049, China
| | - Xingmao Ma
- Zachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX, 77843, United States
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Fuchs LK, Holland AH, Ludlow RA, Coates RJ, Armstrong H, Pickett JA, Harwood JL, Scofield S. Genetic Manipulation of Biosynthetic Pathways in Mint. FRONTIERS IN PLANT SCIENCE 2022; 13:928178. [PMID: 35774811 PMCID: PMC9237610 DOI: 10.3389/fpls.2022.928178] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
In recent years, the study of aromatic plants has seen an increase, with great interest from industrial, academic, and pharmaceutical industries. Among plants attracting increased attention are the Mentha spp. (mint), members of the Lamiaceae family. Mint essential oils comprise a diverse class of molecules known as terpenoids/isoprenoids, organic chemicals that are among the most diverse class of naturally plant derived compounds. The terpenoid profile of several Mentha spp. is dominated by menthol, a cyclic monoterpene with some remarkable biological properties that make it useful in the pharmaceutical, medical, cosmetic, and cleaning product industries. As the global market for Mentha essential oils increases, the desire to improve oil composition and yield follows. The monoterpenoid biosynthesis pathway is well characterised so metabolic engineering attempts have been made to facilitate this improvement. This review focuses on the Mentha spp. and attempts at altering the carbon flux through the biosynthetic pathways to increase the yield and enhance the composition of the essential oil. This includes manipulation of endogenous and heterologous biosynthetic enzymes through overexpression and RNAi suppression. Genes involved in the MEP pathway, the menthol and carvone biosynthetic pathways and transcription factors known to affect secondary metabolism will be discussed along with non-metabolic engineering approaches including environmental factors and the use of plant growth regulators.
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Affiliation(s)
- Lorenz K. Fuchs
- School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | | | | | - Ryan J. Coates
- School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Harvey Armstrong
- School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - John A. Pickett
- School of Chemistry, Cardiff University, Cardiff, United Kingdom
| | - John L. Harwood
- School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Simon Scofield
- School of Biosciences, Cardiff University, Cardiff, United Kingdom
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