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Chen FY, Mu QY, Xu BY, Lei YC, Liu HY, Fang X. Functional analysis of CYP71AV1 reveals the evolutionary landscape of artemisinin biosynthesis. FRONTIERS IN PLANT SCIENCE 2024; 15:1361959. [PMID: 38576787 PMCID: PMC10991709 DOI: 10.3389/fpls.2024.1361959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 02/26/2024] [Indexed: 04/06/2024]
Abstract
Artemisinin biosynthesis, unique to Artemisia annua, is suggested to have evolved from the ancestral costunolide biosynthetic pathway commonly found in the Asteraceae family. However, the evolutionary landscape of this process is not fully understood. The first oxidase in artemisinin biosynthesis, CYP71AV1, also known as amorpha-4,11-diene oxidase (AMO), has specialized from ancestral germacrene A oxidases (GAOs). Unlike GAO, which exhibits catalytic promiscuity toward amorpha-4,11-diene, the natural substrate of AMO, AMO has lost its ancestral activity on germacrene A. Previous studies have suggested that the loss of the GAO copy in A. annua is responsible for the abolishment of the costunolide pathway. In the genome of A. annua, there are two copies of AMO, each of which has been reported to be responsible for the different product profiles of high- and low-artemisinin production chemotypes. Through analysis of their tissue-specific expression and comparison of their sequences with those of other GAOs, it was discovered that one copy of AMO (AMOHAP) exhibits a different transcript compared to the reported artemisinin biosynthetic genes and shows more sequence similarity to other GAOs in the catalytic regions. Furthermore, in a subsequent in vitro enzymatic assay, the recombinant protein of AMOHAP unequivocally demonstrated GAO activity. This result clearly indicates that AMOHAP is a GAO rather than an AMO and that its promiscuous activity on amorpha-4,11-diene has led to its misidentification as an AMO in previous studies. In addition, the divergent expression pattern of AMOHAP compared to that of the upstream germacrene A synthase may have contributed to the abolishment of costunolide biosynthesis in A. annua. Our findings reveal a complex evolutionary landscape in which the emergence of a new metabolic pathway replaces an ancestral one.
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Affiliation(s)
- Fang-Yan Chen
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Qiu-Yan Mu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Bing-Yi Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- School of Life Sciences, Yunnan University, Kunming, China
| | - Yu-Chen Lei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Hui-Ying Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Xin Fang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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Jamshidi B, Etminan A, Mehrabi A, Shooshtari L, Pour-Aboughadareh A. Comparison of phytochemical properties and expressional profiling of artemisinin synthesis-related genes in various Artemisia species. Heliyon 2024; 10:e26388. [PMID: 38439855 PMCID: PMC10909637 DOI: 10.1016/j.heliyon.2024.e26388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 01/17/2024] [Accepted: 02/12/2024] [Indexed: 03/06/2024] Open
Abstract
The Artemisia genus belongs to the Asteraceae family and is used in the treatment of many different diseases such as hepatitis and cancer. So far, around 500 species of Artemisia have been found in different regions of the world. Artemisinin is one of the medicinal compounds found in Artemisia species. Hence, this medical feature encourages researchers to pay attention to various species of this genus to discover more genetic and phytochemical information. In the present study, five species of Artemisia including A. fragrans, A. annua, A. biennis, A. scoparia, and A. absinthium were compared to each other in terms of the artemisinin content and other phytochemical components. Moreover, the relative expression profiles of eight genes related to the accumulation and synthesis of artemisinin [including 4FPSF, DBR2, HMGR1, HMGR2, WIRKY, ADS, DXS, and SQS] were determined in investigated species. The result of high-performance liquid chromatography (HPLC) analysis showed that the content of artemisinin in various species was in the order of A. fragrans > A. annua > A. biennis > A. scoparia > A. absinthium. Based on the gas chromatography-mass spectrometry (GC-MS) analysis, 34, 26, 26, 24, and 20 phytochemical compounds were identified for A. scoparia, A. biennis, A. fragrans, A. absinthum, and A. annua species, respectively. Moreover, camphor (38.86%), β-thujone (68.42%), spathulenol (48.33%), β-farnesene (48.16%), and camphor (29.04%) were identified as the considerable compounds A. fragrans, A. absinthium, A. scoparia, A. biennis, and A. annua species, respectively. Considering the relative expression of the targeted genes, A. scoparia revealed higher expression for the 4FPSF gene. The highest relative expression of the DBR2, WIRKY, and SQS genes was found in A. absinthium species. Moreover, A. annua showed the highest expression of the ADS and DXS genes than the other species. In conclusion, our findings revealed that various species of Artemisia have interesting breeding potential for further investigation of different aspects such as medicinal properties and molecular studies.
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Affiliation(s)
- Bita Jamshidi
- Department of Plant Breeding and Biotechnology, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Alireza Etminan
- Department of Plant Breeding and Biotechnology, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Alimehras Mehrabi
- Department of Plant Breeding and Biotechnology, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Lia Shooshtari
- Department of Plant Breeding and Biotechnology, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Alireza Pour-Aboughadareh
- Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
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Neto DFM, Garrett R, Domont GB, Campos FAP, Nogueira FCS. Untargeted Metabolomic Analysis of Leaves and Roots of Jatropha curcas Genotypes with Contrasting Levels of Phorbol Esters. PHYSIOLOGIA PLANTARUM 2024; 176:e14274. [PMID: 38566272 DOI: 10.1111/ppl.14274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 03/05/2024] [Accepted: 03/14/2024] [Indexed: 04/04/2024]
Abstract
AIMS Phorbol esters (PE) are toxic diterpenoids accumulated in physic nut (Jatropha curcas L.) seed tissues. Their biosynthetic pathway remains unknown, and the participation of roots in this process may be possible. Thus, we set out to study the deposition pattern of PE and other terpenoids in roots and leaves of genotypes with detected (DPE) and not detected (NPE) phorbol esters based on previous studies. OUTLINE OF DATA RESOURCES We analyzed physic nut leaf and root organic extracts using LC-HRMS. By an untargeted metabolomics approach, it was possible to annotate 496 and 146 metabolites in the positive and negative electrospray ionization modes, respectively. KEY RESULTS PE were detected only in samples of the DPE genotype. Remarkably, PE were found in both leaves and roots, making this study the first report of PE in J. curcas roots. Furthermore, untargeted metabolomic analysis revealed that diterpenoids and apocarotenoids are preferentially accumulated in the DPE genotype in comparison with NPE, which may be linked to the divergence between the genotypes concerning PE biosynthesis, since sesquiterpenoids showed greater abundance in the NPE. UTILITY OF THE RESOURCE The LC-HRMS files, publicly available in the MassIVE database (identifier MSV000092920), are valuable as they expand our understanding of PE biosynthesis, which can assist in the development of molecular strategies to reduce PE levels in toxic genotypes, making possible the food use of the seedcake, as well as its potential to contain high-quality spectral information about several other metabolites that may possess biological activity.
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Affiliation(s)
- Domingos F M Neto
- Departamento de Fitotecnia, Universidade Federal do Ceará, CE, Brasil
| | - Rafael Garrett
- Laboratório de Metabolômica/LADETEC, Instituto de Química, Universidade Federal do Rio de Janeiro, Brasil
| | - Gilberto B Domont
- Unidade Proteômica, Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, RJ, Brasil
| | - Francisco A P Campos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, CE, Brasil
| | - Fábio C S Nogueira
- Unidade Proteômica, Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, RJ, Brasil
- Laboratório de Proteômica/LADETEC, Instituto de Química, Universidade Federal do Rio de Janeiro, RJ, Brasil
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Lagnika L, Avosse SI, Bouraima FO, Sindedji CB, Dakle M, Gueret R, Fort L, Gimbert Y, Napporn TW, Zigah D, Aubouy A, Maisonhaute E. Voltammetric techniques for low-cost on-site routine analysis of thymol in the medicinal plant Ocimum gratissimum. Talanta 2024; 269:125411. [PMID: 38008023 DOI: 10.1016/j.talanta.2023.125411] [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: 11/06/2023] [Accepted: 11/13/2023] [Indexed: 11/28/2023]
Abstract
The composition of essential oils varies according to culture conditions and climate, which induces a need for simple and inexpensive characterization methods close to the place of extraction. This appears particularly important for developing countries. Herein, we develop an analytical strategy to determine the thymol content in Ocimum Gratissimum, a medicinal plant from Benin. The protocol is based on electrochemical techniques (cyclic and square wave voltammetry) implemented with a low cost potentiostat. Thymol is a phenol derivative and was directly oxidized at the electrode surface. We had to resort to submillimolar concentrations (25-300 μM) in order to minimize production of phenol oligomers that passivate the electrode. We worked first on two essential oils and realized that in one of them the thymol concentration was below our detection method. These results were confirmed by gas chromatography - mass spectrometry. Furthermore, we optimized the detection protocol to analyze an infusion made directly from the leaves of the plant. Finally, we studied whether the cost of the electrochemical cell may also be minimized by using pencil lead as working and counter electrodes.
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Affiliation(s)
- Latifou Lagnika
- Laboratoire de Biochimie et Substances Naturelles Bioactives, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Abomey-Calavi, Benin.
| | - Solange Imelda Avosse
- Laboratoire de Biochimie et Substances Naturelles Bioactives, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Abomey-Calavi, Benin
| | - Faridath Oyélékan Bouraima
- Laboratoire de Biochimie et Substances Naturelles Bioactives, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Abomey-Calavi, Benin
| | - Candide Bidossessi Sindedji
- Laboratoire de Biochimie et Substances Naturelles Bioactives, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Abomey-Calavi, Benin
| | - Mathieu Dakle
- Laboratoire de Biochimie et Substances Naturelles Bioactives, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, Abomey-Calavi, Benin
| | - Rodolphe Gueret
- Département de Chimie Moléculaire - DCM UMR 5250, CNRS/Université Grenoble Alpes, UGA, 38000 Grenoble, France
| | - Laure Fort
- Département de Chimie Moléculaire - DCM UMR 5250, CNRS/Université Grenoble Alpes, UGA, 38000 Grenoble, France
| | - Yves Gimbert
- Département de Chimie Moléculaire - DCM UMR 5250, CNRS/Université Grenoble Alpes, UGA, 38000 Grenoble, France; Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université, 4 Place Jussieu, F-75252, Paris, Cedex5, France
| | - Teko W Napporn
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, CNRS, F-86073, Poitiers, France
| | - Dodzi Zigah
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, CNRS, F-86073, Poitiers, France
| | - Agnès Aubouy
- UMR152 PHARMADEV, Toulouse University, IRD, UPS, France; Institut de Recherche Clinique du Bénin (IRCB), Abomey Calavi, Benin.
| | - Emmanuel Maisonhaute
- Sorbonne Université, CNRS, Laboratoire Interfaces et Systèmes Electrochimiques, 4 Place Jussieu, F-75252, Paris, Cedex5, France.
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Hussain M, Thakur RK, Khazir J, Ahmed S, Khan MI, Rahi P, Peer LA, Shanmugam PV, Kaur S, Raina SN, Reshi ZA, Sehgal D, Rajpal VR, Mir BA. Traditional uses, Phytochemistry, Pharmacology, and Toxicology of the Genus Artemisia L. (Asteraceae): A High-value Medicinal Plant. Curr Top Med Chem 2024; 24:301-342. [PMID: 37711006 DOI: 10.2174/1568026623666230914104141] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/15/2023] [Accepted: 08/23/2023] [Indexed: 09/16/2023]
Abstract
Biologically active secondary metabolites, essential oils, and volatile compounds derived from medicinal and aromatic plants play a crucial role in promoting human health. Within the large family Asteraceae, the genus Artemisia consists of approximately 500 species. Artemisia species have a rich history in traditional medicine worldwide, offering remedies for a wide range of ailments, such as malaria, jaundice, toothache, gastrointestinal problems, wounds, inflammatory diseases, diarrhoea, menstrual pains, skin disorders, headache, and intestinal parasites. The therapeutic potential of Artemisia species is derived from a multitude of phytoconstituents, including terpenoids, phenols, flavonoids, coumarins, sesquiterpene lactones, lignans, and alkaloids that serve as active pharmaceutical ingredients (API). The remarkable antimalarial, antimicrobial, anthelmintic, antidiabetic, anti-inflammatory, anticancer, antispasmodic, antioxidative and insecticidal properties possessed by the species are attributed to these APIs. Interestingly, several commercially utilized pharmaceutical drugs, including arglabin, artemisinin, artemether, artesunate, santonin, and tarralin have also been derived from different Artemisia species. However, despite the vast medicinal potential, only a limited number of Artemisia species have been exploited commercially. Further, the available literature on traditional and pharmacological uses of Artemisia lacks comprehensive reviews. Therefore, there is an urgent need to bridge the existing knowledge gaps and provide a scientific foundation for future Artemisia research endeavours. It is in this context, the present review aims to provide a comprehensive account of the traditional uses, phytochemistry, documented biological properties and toxicity of all the species of Artemisia and offers useful insights for practitioners and researchers into underutilized species and their potential applications. This review aims to stimulate further exploration, experimentation and collaboration to fully realize the therapeutic potential of Artemisia in augmenting human health and well-being.
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Affiliation(s)
- Manzoor Hussain
- Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Rakesh Kr Thakur
- Amity Institute of Biotechnology, Amity University, Noida, U.P, 201313, India
| | - Jabeena Khazir
- Department of Chemistry, HKM Govt. Degree College Eidgah, Srinagar, J&K, India
| | - Sajad Ahmed
- Department of Plant Biotechnology, Indian Institute of Integrative Medicine, Canal Road Jammu, 180001, J&K, India
| | | | - Praveen Rahi
- Biological Resources Center, Institut Pasteur, University de Paris, Paris, 75015, France
| | - Latif Ahmad Peer
- Department of Botany, University of Kashmir, Srinagar, Jammu & Kashmir, 190006, India
| | | | - Satwinderjeet Kaur
- Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Soom Nath Raina
- Amity Institute of Biotechnology, Amity University, Noida, U.P, 201313, India
| | - Zafar Ahmad Reshi
- Department of Botany, University of Kashmir, Srinagar, Jammu & Kashmir, 190006, India
| | - Deepmala Sehgal
- Syngenta, Jeolett's Hill International Research Centre, Bracknell, Berkshire, UK
| | - Vijay Rani Rajpal
- Department of Botany, HansRaj College, University of Delhi, Delhi, 110007, India
| | - Bilal Ahmad Mir
- Department of Botany, University of Kashmir, Srinagar, Jammu & Kashmir, 190006, India
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Wang X, Wu L, Xiang L, Gao R, Yin Q, Wang M, Liu Z, Leng L, Su Y, Wan H, Ma T, Chen S, Shi Y. Promoter variations in DBR2-like affect artemisinin production in different chemotypes of Artemisia annua. HORTICULTURE RESEARCH 2023; 10:uhad164. [PMID: 37731862 PMCID: PMC10508037 DOI: 10.1093/hr/uhad164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 08/09/2023] [Indexed: 09/22/2023]
Abstract
Artemisia annua is the only known plant source of the potent antimalarial artemisinin, which occurs as the low- and high-artemisinin producing (LAP and HAP) chemotypes. Nevertheless, the different mechanisms of artemisinin producing between these two chemotypes were still not fully understood. Here, we performed a comprehensive analysis of genome resequencing, metabolome, and transcriptome data to systematically compare the difference in the LAP chemotype JL and HAP chemotype HAN. Metabolites analysis revealed that 72.18% of sesquiterpenes was highly accumulated in HAN compared to JL. Integrated omics analysis found a DBR2-Like (DBR2L) gene may be involved in artemisinin biosynthesis. DBR2L was highly homologous with DBR2, belonged to ORR3 family, and had the DBR2 activity of catalyzing artemisinic aldehyde to dihydroartemisinic aldehyde. Genome resequencing and promoter cloning revealed that complicated variations existed in DBR2L promoters among different varieties of A. annua and were clustered into three variation types. The promoter activity of diverse variant types showed obvious differences. Furthermore, the core region (-625 to 0) of the DBR2L promoter was identified and candidate transcription factors involved in DBR2L regulation were screened. Thus, the result indicates that DBR2L is another key enzyme involved in artemisinin biosynthesis. The promoter variation in DBR2L affects its expression level, and thereby may result in the different yield of artemisinin in varieties of A. annua. It provides a novel insight into the mechanism of artemisinin-producing difference in LAP and HAP chemotypes of A. annua, and will assist in a high yield of artemisinin in A. annua.
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Affiliation(s)
- Xingwen Wang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Lan Wu
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Li Xiang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ranran Gao
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qinggang Yin
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Mengyue Wang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Zhaoyu Liu
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Liang Leng
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yanyan Su
- Amway (China) Botanical R&D Center, Wuxi 214115, China
| | - Huihua Wan
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Tingyu Ma
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Shilin Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yuhua Shi
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
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7
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Varela K, Arman HD, Berger MS, Sponsel VM, Lin CHA, Yoshimoto FK. Inhibition of Cysteine Proteases via Thiol-Michael Addition Explains the Anti-SARS-CoV-2 and Bioactive Properties of Arteannuin B. JOURNAL OF NATURAL PRODUCTS 2023; 86:1654-1666. [PMID: 37458412 DOI: 10.1021/acs.jnatprod.2c01146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Artemisia annua is the plant that produces artemisinin, an endoperoxide-containing sesquiterpenoid used for the treatment of malaria. A. annua extracts, which contain other bioactive compounds, have been used to treat other diseases, including cancer and COVID-19, the disease caused by the virus SARS-CoV-2. In this study, a methyl ester derivative of arteannuin B was isolated when A. annua leaves were extracted with a 1:1 mixture of methanol and dichloromethane. This methyl ester was thought to be formed from the reaction between arteannuin B and the extracting solvent, which was supported by the fact that arteannuin B underwent 1,2-addition when it was dissolved in deuteromethanol. In contrast, in the presence of N-acetylcysteine methyl ester, a 1,4-addition (thiol-Michael reaction) occurred. Arteannuin B hindered the activity of the SARS CoV-2 main protease (nonstructural protein 5, NSP5), a cysteine protease, through time-dependent inhibition. The active site cysteine residue of NSP5 (cysteine-145) formed a covalent bond with arteannuin B as determined by mass spectrometry. In order to determine whether cysteine adduction by arteannuin B can inhibit the development of cancer cells, similar experiments were performed with caspase-8, the cysteine protease enzyme overexpressed in glioblastoma. Time-dependent inhibition and cysteine adduction assays suggested arteannuin B inhibits caspase-8 and adducts to the active site cysteine residue (cysteine-360), respectively. Overall, these results enhance our understanding of how A. annua possesses antiviral and cytotoxic activities.
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Affiliation(s)
- Kaitlyn Varela
- Department of Chemistry, The University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - Hadi D Arman
- Department of Chemistry, The University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - Mitchel S Berger
- Department of Neurological Surgery, University of California at San Francisco, San Francisco, California 94122, United States
| | - Valerie M Sponsel
- Department of Integrative Biology, The University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - Chin-Hsing Annie Lin
- Department of Integrative Biology, The University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - Francis K Yoshimoto
- Department of Chemistry, The University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
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8
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Shinyuy LM, Loe GE, Jansen O, Mamede L, Ledoux A, Noukimi SF, Abenwie SN, Ghogomu SM, Souopgui J, Robert A, Demeyer K, Frederich M. Secondary Metabolites Isolated from Artemisia afra and Artemisia annua and Their Anti-Malarial, Anti-Inflammatory and Immunomodulating Properties-Pharmacokinetics and Pharmacodynamics: A Review. Metabolites 2023; 13:metabo13050613. [PMID: 37233654 DOI: 10.3390/metabo13050613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/27/2023] Open
Abstract
There are over 500 species of the genus Artemisia in the Asteraceae family distributed over the globe, with varying potentials to treat different ailments. Following the isolation of artemisinin (a potent anti-malarial compound with a sesquiterpene backbone) from Artemisia annua, the phytochemical composition of this species has been of interest over recent decades. Additionally, the number of phytochemical investigations of other species, including those of Artemisia afra in a search for new molecules with pharmacological potentials, has increased in recent years. This has led to the isolation of several compounds from both species, including a majority of monoterpenes, sesquiterpenes, and polyphenols with varying pharmacological activities. This review aims to discuss the most important compounds present in both plant species with anti-malarial properties, anti-inflammatory potentials, and immunomodulating properties, with an emphasis on their pharmacokinetics and pharmacodynamics properties. Additionally, the toxicity of both plants and their anti-malaria properties, including those of other species in the genus Artemisia, is discussed. As such, data were collected via a thorough literature search in web databases, such as ResearchGate, ScienceDirect, Google scholar, PubMed, Phytochemical and Ethnobotanical databases, up to 2022. A distinction was made between compounds involved in a direct anti-plasmodial activity and those expressing anti-inflammatory and immunomodulating activities or anti-fever properties. For pharmacokinetics activities, a distinction was made between compounds influencing bioavailability (CYP effect or P-Glycoprotein effect) and those affecting the stability of pharmacodynamic active components.
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Affiliation(s)
- Lahngong Methodius Shinyuy
- Laboratory of Pharmacognosy, Department of Pharmacy, Center of Interdisciplinary Research on Medicine (CIRM), University of Liege, 4000 Liège, Belgium
- Laboratory of In Vitro Toxicology and Dermato-Cosmetology (IVTD), Department of Analytical, Applied Chemometrics and Molecular Modeling (FABI), Faculty of Medicine and Pharmacy, Vrije Universiteit of Brussel, 1050 Ixelles, Belgium
- Laboratory of Pharmacochemical and Natural Pharmaceutical Substances, Doctoral Training Unit in Health Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala P.O. Box 2701, Cameroon
| | - Gisèle E Loe
- Laboratory of Pharmacochemical and Natural Pharmaceutical Substances, Doctoral Training Unit in Health Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala P.O. Box 2701, Cameroon
| | - Olivia Jansen
- Laboratory of Pharmacognosy, Department of Pharmacy, Center of Interdisciplinary Research on Medicine (CIRM), University of Liege, 4000 Liège, Belgium
| | - Lúcia Mamede
- Laboratory of Pharmacognosy, Department of Pharmacy, Center of Interdisciplinary Research on Medicine (CIRM), University of Liege, 4000 Liège, Belgium
| | - Allison Ledoux
- Laboratory of Pharmacognosy, Department of Pharmacy, Center of Interdisciplinary Research on Medicine (CIRM), University of Liege, 4000 Liège, Belgium
| | - Sandra Fankem Noukimi
- Molecular and Cell Biology Laboratory (MCBL), Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, Buea P.O. Box 63, Cameroon
- Embryology and Biotechnology Laboratory, Université Libre de Bruxelles, 1050 Brussels, Belgium
| | - Suh Nchang Abenwie
- Epidemiology and Biostatistics Unit (EPiD), Institute of Clinical and Experimental Research (IREC), UCLouvain, 1200 Brussel, Belgium
| | - Stephen Mbigha Ghogomu
- Molecular and Cell Biology Laboratory (MCBL), Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, Buea P.O. Box 63, Cameroon
| | - Jacob Souopgui
- Embryology and Biotechnology Laboratory, Université Libre de Bruxelles, 1050 Brussels, Belgium
| | - Annie Robert
- Epidemiology and Biostatistics Unit (EPiD), Institute of Clinical and Experimental Research (IREC), UCLouvain, 1200 Brussel, Belgium
| | - Kristiaan Demeyer
- Laboratory of In Vitro Toxicology and Dermato-Cosmetology (IVTD), Department of Analytical, Applied Chemometrics and Molecular Modeling (FABI), Faculty of Medicine and Pharmacy, Vrije Universiteit of Brussel, 1050 Ixelles, Belgium
| | - Michel Frederich
- Laboratory of Pharmacognosy, Department of Pharmacy, Center of Interdisciplinary Research on Medicine (CIRM), University of Liege, 4000 Liège, Belgium
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9
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Slimestad R, Johny A, Thomsen MG, Karlsen CR, Rosnes JT. Chemical Profiling and Biological Activity of Extracts from Nine Norwegian Medicinal and Aromatic Plants. Molecules 2022; 27:molecules27217335. [PMID: 36364156 PMCID: PMC9656764 DOI: 10.3390/molecules27217335] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/21/2022] [Accepted: 10/26/2022] [Indexed: 11/26/2022] Open
Abstract
There is an increased interest in identifying beneficial compounds of plant origin that can be added to animal diets to improve animal performance and have a health-promoting effect. In the present study, nine herb species of the Norwegian wild flora or which can be cultivated in Norway were selected for phytogenic evaluation (hops, maral root, mint, oregano, purslane, rosemary, roseroot, sweet wormwood, yarrow). Dried herbs were sequentially extracted with dichloromethane (DCM), ethanol (EtOH) and finally water (H2O) by ultrasound-assisted extraction (UAE). The UAE protocol was found to be more rational than conventional Soxhlet with respect to DCM extraction. Total extraction yield was found to be highest for oregano (Origanum vulgare) with 34.4 g 100−1 g dry matter (DM). H2O-extracts gave the highest yields of the three solvents, with up to 25 g 100−1 g DM for purslane (Portulaca oleracea ssp. sativa) and mint (Mentha piperita). EtOH- and H2O-extracts were the most efficient extracts with respect to free radical scavenging capacity (ABTS (=2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid), and oregano, mint, hops (Humulus lupulus) and maral root-leaves (Leuzea carthamoides) were found to be the most efficient antioxidant sources. Hops (EtOH-extract) contained α- and β-acids, xanthohumols, chlorogenic acid and the hitherto unreported 3-O-glucosides of kaempferol and quercetin. Maral root-leaves contained among other compounds hexosides of the 6-hydroxy- and 6-methoxy-kaempferol and -quercetin, whereas roseroot (Rosea rhodiola) revealed contents of rosavin, rhodiosin and rhodionin. Sweet wormwood (Artemisia annua) contained chlorogenic acid and several derivatives thereof, scopoletin and poly-methylated flavones (eupatin, casticin, chrysoplenetin). Antimicrobial potential of different plant extracts was demonstrated against Gram-positive and Gram-negative bacteria using the indicator organisms Staphylococcus aureus, and Escherichia coli, and the Atlantic salmon bacterial pathogens Moritella viscosa, Tenacibaculum finnmarkense and Aliivibrio wodanis. DCM extracts possessed the highest activities. Data demonstrate the potential ability of herb extracts as natural antimicrobials. However, future safety studies should be performed to elucidate any compromising effect on fish health.
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Affiliation(s)
- Rune Slimestad
- PlantChem AS, Eikenveien 334, N-4596 Eiken, Norway
- Correspondence:
| | - Amritha Johny
- Department of Fish Health, Nofima AS, Osloveien 1, N-1430 Ås, Norway
| | - Mette Goul Thomsen
- Division of Food Production and Society, Nibio, Nylinna 226, N-2849 Kapp, Norway
| | | | - Jan Thomas Rosnes
- Department of Processing Technology, Nofima AS, Richard Johnsens gate 4, N-4021 Stavanger, Norway
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10
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Czechowski T, Branigan C, Rae A, Rathbone D, Larson TR, Harvey D, Catania TM, Zhang D, Li Y, Salmon M, Bowles DJ, O´Maille P, Graham IA. Artemisia annua L. plants lacking Bornyl diPhosphate Synthase reallocate carbon from monoterpenes to sesquiterpenes except artemisinin. FRONTIERS IN PLANT SCIENCE 2022; 13:1000819. [PMID: 36311056 PMCID: PMC9597464 DOI: 10.3389/fpls.2022.1000819] [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: 07/22/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
The monoterpene camphor is produced in glandular secretory trichomes of the medicinal plant Artemisia annua, which also produces the antimalarial drug artemisinin. We have found that, depending on growth conditions, camphor can accumulate at levels ranging from 1- 10% leaf dry weight (LDW) in the Artemis F1 hybrid, which has been developed for commercial production of artemisinin at up to 1% LDW. We discovered that a camphor null (camphor-0) phenotype segregates in the progeny of self-pollinated Artemis material. Camphor-0 plants also show reduced levels of other less abundant monoterpenes and increased levels of the sesquiterpene precursor farnesyl pyrophosphate plus sesquiterpenes, including enzymatically derived artemisinin pathway intermediates but not artemisinin. One possible explanation for this is that high camphor concentrations in the glandular secretory trichomes play an important role in generating the hydrophobic conditions required for the non-enzymatic conversion of dihydroartemisinic acid tertiary hydroperoxide to artemisinin. We established that the camphor-0 phenotype associates with a genomic deletion that results in loss of a Bornyl diPhosphate Synthase (AaBPS) gene candidate. Functional characterization of the corresponding enzyme in vitro confirmed it can catalyze the first committed step in not only camphor biosynthesis but also in a number of other monoterpenes, accounting for over 60% of total volatiles in A. annua leaves. This in vitro analysis is consistent with loss of monoterpenes in camphor-0 plants. The AaBPS promoter drives high reporter gene expression in A. annua glandular secretory trichomes of juvenile leaves with expression shifting to non-glandular trichomes in mature leaves, which is consistent with AaBPS transcript abundance.
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Affiliation(s)
- Tomasz Czechowski
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
| | - Caroline Branigan
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
| | - Anne Rae
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
- Cherry Valley Farms Ltd, Cherry Valley House, Unit 1 Blossom Avenue, Humberston, North East Lincolnshire, United Kingdom
| | - Deborah Rathbone
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
- Biorenewables Development Centre, 1 Hassacarr Close, Chessingham Park, Dunnington, York, United Kingdom
| | - Tony R. Larson
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
| | - David Harvey
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
| | - Theresa M. Catania
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
| | - Dong Zhang
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Yi Li
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
| | - Melissa Salmon
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, United Kingdom
- Patron Lab, Earlham Institute, Norwich Research Park, Norwich, Norfolk, United Kingdom
| | - Dianna J. Bowles
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
| | - Paul O´Maille
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, United Kingdom
- SRI International, 333 Ravenswood Avenue, Menlo Park, CA, United States
| | - Ian A. Graham
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, United Kingdom
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11
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Chemical Diversity of Essential Oils from Korean Native Populations of Agastache rugosa (Korean Mint). Molecules 2022; 27:molecules27196341. [PMID: 36234876 PMCID: PMC9571081 DOI: 10.3390/molecules27196341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 12/03/2022] Open
Abstract
Agastache rugosa (baechohyang) is one of the most important aromatic plants native to the Republic of Korea. A. rugosa fragrance has been used to prepare incense since the Goryeo Dynasty in Korea. The present study aimed to explore the variation in the composition of essential oils from A. rugosa among native populations in Korea. The seeds of A. rugosa were collected from 90 different sites in Korea and seedlings were raised in the nursery. Essential oils were extracted from these populations by the steam distillation extraction method and their chemical compositions were analyzed by GC-MS. The yield of essential oils of A. rugosa ranged between 0.11% and 0.86%. A total of 204 components were identified from 90 populations of A. rugosa. Out of 204 components, 32 components were common in more than 40 individuals of A. rugosa and these 32 components were selected for principal component analysis (PCA). On the basis of the essential oil compositions, six chemotypes—estragole, pulegone, methyl eugenol, menthone, isopulegone, and nepetalactone—were distinguished according to their major components. As a result of the cluster analysis, 90 individuals of A. rugosa could be classified into three groups: estragole, methyl eugenol, and pulegone. A. rugosa exhibited significant chemical diversity among the individuals. The distribution of chemotypes is associated with the collection of seeds, suggesting that genetic diversity may influence the variations in the chemical compositions and concentrations within the species. This chemical diversity serves as the background to select cultivars for the cultivation and industrial applications of A. rugosa cultivars with high essential oil yield and concentration of its chemical components.
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12
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Liao B, Shen X, Xiang L, Guo S, Chen S, Meng Y, Liang Y, Ding D, Bai J, Zhang D, Czechowski T, Li Y, Yao H, Ma T, Howard C, Sun C, Liu H, Liu J, Pei J, Gao J, Wang J, Qiu X, Huang Z, Li H, Yuan L, Wei J, Graham I, Xu J, Zhang B, Chen S. Allele-aware chromosome-level genome assembly of Artemisia annua reveals the correlation between ADS expansion and artemisinin yield. MOLECULAR PLANT 2022; 15:1310-1328. [PMID: 35655434 DOI: 10.1016/j.molp.2022.05.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 03/25/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Artemisia annua is the major natural source of artemisinin, an anti-malarial medicine commonly used worldwide. Here, we present chromosome-level haploid maps for two A. annua strains with different artemisinin contents to explore the relationships between genomic organization and artemisinin production. High-fidelity sequencing, optical mapping, and chromatin conformation capture sequencing were used to assemble the heterogeneous and repetitive genome and resolve the haplotypes of A. annua. Approximately 50,000 genes were annotated for each haplotype genome, and a triplication event that occurred approximately 58.12 million years ago was examined for the first time in this species. A total of 3,903,467-5,193,414 variants (SNPs, indels, and structural variants) were identified in the 1.5-Gb genome during pairwise comparison between haplotypes, consistent with the high heterozygosity of this species. Genomic analyses revealed a correlation between artemisinin concents and the copy number of amorpha-4,11-diene synthase genes. This correlation was further confirmed by resequencing of 36 A. annua samples with varied artemisinin contents. Circular consensus sequencing of transcripts facilitated the detection of paralog expression. Collectively, our study provides chromosome-level allele-aware genome assemblies for two A. annua strains and new insights into the biosynthesis of artemisinin and its regulation, which will contribute to conquering malaria worldwide.
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Affiliation(s)
- Baosheng Liao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Key Laboratory of Quality Evaluation of Chinese Medicine of the Guangdong Provincial Medical Products Administration, the Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiaofeng Shen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China
| | - Li Xiang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Shuai Guo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shiyu Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ying Meng
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yu Liang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Dandan Ding
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Junqi Bai
- Key Laboratory of Quality Evaluation of Chinese Medicine of the Guangdong Provincial Medical Products Administration, the Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Dong Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Centre for Novel Agricultural Products, Department of Biology, University of York, York, UK
| | - Tomasz Czechowski
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, UK
| | - Yi Li
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, UK
| | - Hui Yao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China
| | - Tingyu Ma
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Caroline Howard
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton CB10 1RQ, UK
| | - Chao Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China
| | - Haitao Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China
| | - Jiushi Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China
| | - Jin Pei
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jihai Gao
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jigang Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiaohui Qiu
- Key Laboratory of Quality Evaluation of Chinese Medicine of the Guangdong Provincial Medical Products Administration, the Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Zhihai Huang
- Key Laboratory of Quality Evaluation of Chinese Medicine of the Guangdong Provincial Medical Products Administration, the Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Hongyi Li
- Key Laboratory of Quality Evaluation of Chinese Medicine of the Guangdong Provincial Medical Products Administration, the Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Ling Yuan
- Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY 40546, USA; Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510520, China
| | - Jianhe Wei
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China
| | - Ian Graham
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, UK
| | - Jiang Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Boli Zhang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
| | - Shilin Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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13
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Phytochemical Profile, Antioxidant and Wound Healing Potential of Three Artemisia Species: In Vitro and In Ovo Evaluation. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031359] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Skin injuries, and especially wounds of chronic nature, can cause a major negative impact on the quality of life. New efficient alternatives are needed for wound healing therapy and herbal products are being investigated due to a high content of natural compounds with promising healing activity. For this purpose, we investigated three Artemisia species, Artemisia absinthium L. (AAb), Artemisia dracunculus L. (ADr) and Artemisia annua L. (AAn). Ethanolic extracts, containing different polyphenolic compounds, elicited strong antioxidant activities in the DPPH assay, comparable to ascorbic acid. Human ketratinocyte proliferation was stimulated and wound closure was enhanced by all three extracts at concentrations of 100 µg/mL. The Artemisia extracts modulated angiogenesis by increasing vessel formation, especially following treatment with A. annua and A. dracunculus, extracts with a significantly higher content of chlorogenic acid. Good tolerability and anti-irritative effects were also registered in ovo, on the chorioallantoic membrane (CAM). The three Artemisia species represent promising low-cost, polyphenol-rich, antioxidant, safe alternatives for wound care treatment.
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14
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Dang J, Lin G, Liu L, Zhou P, Shao Y, Dai S, Sang M, Jiang Z, Liu C, Wu Q. Comparison of Pulegone and Estragole Chemotypes Provides New Insight Into Volatile Oil Biosynthesis of Agastache rugosa. FRONTIERS IN PLANT SCIENCE 2022; 13:850130. [PMID: 35463413 PMCID: PMC9019551 DOI: 10.3389/fpls.2022.850130] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/01/2022] [Indexed: 05/17/2023]
Abstract
The aerial parts of Agastache rugosa are rich in essential oils containing monoterpenoids, phenylpropanoids, and aromatic compounds. These are used as herbs, perfume plants, and ornamental plants. Based on the difference in the constituents of the essential oil, A. rugosa is divided into pulegone and estragole chemotypes, but the mechanism of key metabolite biosynthesis in these two A. rugosa chemotypes remains unclear. In this study, we compared the morphological differences, metabolite constituents, and transcriptomic data between the two chemotypes of A. rugosa. Monoterpenoid was the main compound in the pulegone chemotype, and phenylpropanoid was the main compound in the estragole chemotype; however, limonene was detected in both chemotypes. Furthermore, 46 genes related to pulegone and estragole biosynthesis were identified. Limonene synthase, limonene-3-hydroxylase, and isopiperitenol dehydrogenase were upregulated in the pulegone chemotype, while phenylalanine ammonia-lyase, 4-coumarate: CoA ligase, CYP73A, coumaroyl-aldehyde dehydrogenase, and eugenol synthase were downregulated in the pulegone chemotype. We identified chavicol methyl transferase and limonene-3-hydroxylase in A. rugosa. This work not only provides the difference in morphology and metabolites in pulegone and estragole chemotypes, but also offers a molecular mechanism of volatile oil biosynthesis, which could be a basis for specialized metabolites in specialized chemotypes.
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Affiliation(s)
- Jingjie Dang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
| | - Guyin Lin
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
| | - Licheng Liu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
| | - Peina Zhou
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
| | - Yongfang Shao
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
| | - Shilin Dai
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
| | - Mengru Sang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
| | - Zheng Jiang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
| | - Chanchan Liu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
- *Correspondence: Chanchan Liu,
| | - Qinan Wu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing, China
- Qinan Wu,
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15
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Ma T, Gao H, Zhang D, Sun W, Yin Q, Wu L, Zhang T, Xu Z, Wei J, Su Y, Shi Y, Ding D, Yuan L, Dong G, Leng L, Xiang L, Chen S. Genome-Wide Analysis of Light-Regulated Alternative Splicing in Artemisia annua L. FRONTIERS IN PLANT SCIENCE 2021; 12:733505. [PMID: 34659300 PMCID: PMC8511310 DOI: 10.3389/fpls.2021.733505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
Artemisinin is currently the most effective ingredient in the treatment of malaria, which is thus of great significance to study the genetic regulation of Artemisia annua. Alternative splicing (AS) is a regulatory process that increases the complexity of transcriptome and proteome. The most common mechanism of alternative splicing (AS) in plant is intron retention (IR). However, little is known about whether the IR isoforms produced by light play roles in regulating biosynthetic pathways. In this work we would explore how the level of AS in A. annua responds to light regulation. We obtained a new dataset of AS by analyzing full-length transcripts using both Illumina- and single molecule real-time (SMRT)-based RNA-seq as well as analyzing AS on various tissues. A total of 5,854 IR isoforms were identified, with IR accounting for the highest proportion (48.48%), affirming that IR is the most common mechanism of AS. We found that the number of up-regulated IR isoforms (1534/1378, blue and red light, respectively) was more than twice that of down-regulated (636/682) after treatment of blue or red light. In the artemisinin biosynthetic pathway, 10 genes produced 16 differentially expressed IR isoforms. This work demonstrated that the differential expression of IR isoforms induced by light has the potential to regulate sesquiterpenoid biosynthesis. This study also provides high accuracy full-length transcripts, which can be a valuable genetic resource for further research of A. annua, including areas of development, breeding, and biosynthesis of active compounds.
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Affiliation(s)
- Tingyu Ma
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People’s Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Han Gao
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Dong Zhang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- College of Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Wei Sun
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qinggang Yin
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lan Wu
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tianyuan Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Zhichao Xu
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People’s Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianhe Wei
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Yanyan Su
- Amway (China) Botanical R&D Center, Wuxi, China
| | - Yuhua Shi
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Dandan Ding
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ling Yuan
- Department of Plant and Soil Sciences, Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, United States
| | | | - Liang Leng
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li Xiang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- Department of Plant and Soil Sciences, Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, United States
| | - Shilin Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
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16
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Kariya K, Ube N, Ueno M, Teraishi M, Okumoto Y, Mori N, Ueno K, Ishihara A. Natural variation of diterpenoid phytoalexins in cultivated and wild rice species. PHYTOCHEMISTRY 2020; 180:112518. [PMID: 32950772 DOI: 10.1016/j.phytochem.2020.112518] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/02/2020] [Accepted: 09/07/2020] [Indexed: 06/11/2023]
Abstract
Rice (Oryza sativa) leaves accumulate phytoalexins in response to pathogen attack. The major phytoalexins in rice are diterpenoids such as momilactones, phytocassanes, and oryzalexins. We analyzed the abundance of momilactones A and B and phytocassanes A and D in UV-light-irradiated leaves of cultivars from the World Rice Core Collection (WRC). Both types of phytoalexins were detected in most cultivars; however, their accumulated amounts varied greatly from cultivar to cultivar. The amounts of momilactones A and B tended to be higher in japonica cultivars than those in indica cultivars. However, the accumulated amounts of phytocassanes were not related to differences in subspecies. In addition, variation in phytoalexin content was observed for seven wild rice species. During the analysis of momilactone A in cultivars from the WRC, two unknown compounds were detected in'Jaguary' and 'Basilanon'. We isolated these compounds from UV-light-irradiated leaves and determined their structures. The compound isolated from 'Jaguary' was an isomer of momilactone A that had an abietane skeleton, while that from 'Basilanon' was di-dehydrogenated phytocassane A; these compounds were denoted as oryzalactone and phytocassane G. Oryzalactone accumulated in only three cultivars, whereas phytocassane G accumulated in almost all of the cultivars from the WRC. These findings indicate the existence of large natural variation in the phytoalexin composition in rice.
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Affiliation(s)
- Keisuke Kariya
- Graduate School of Sustainability Science, Tottori University, Tottori, 680-8553, Japan
| | - Naoki Ube
- Arid Land Research Center, Tottori University, Tottori, 680-0001, Japan
| | - Makoto Ueno
- Faculty of Life and Environmental Science, Shimane University, Nishikawatsu 1060, Matsue, 690-8504, Japan
| | - Masayoshi Teraishi
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-Cho, Kyoto, 606-8502, Japan
| | - Yutaka Okumoto
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-Cho, Kyoto, 606-8502, Japan
| | - Naoki Mori
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-Cho, Kyoto, 606-8502, Japan
| | - Kotomi Ueno
- Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Atsushi Ishihara
- Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan.
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Mirbehbahani FS, Hejazi F, Najmoddin N, Asefnejad A. Artemisia annua L. as a promising medicinal plant for powerful wound healing applications. Prog Biomater 2020; 9:139-151. [PMID: 32989678 PMCID: PMC7544745 DOI: 10.1007/s40204-020-00138-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 09/19/2020] [Indexed: 12/24/2022] Open
Abstract
Artemisia annua L. has been utilized for the first time in a nanofibrous wound dressing composition. The extract of this valuable plant provides anti-inflammatory, anti-bacterial and anti-microbial properties which can be considered as a promising medicinal component in therapeutic applications. In the present work, Artemisia annua L. was picked up from Gorgan forest area of Northern Iran and its extract was prepared by methanol as the extraction solvent. In the fabrication of wound dressing, Artemisia annua L. extract was mixed with gelatin and a nanofibrous structure was formed by electrospinning technique. To have a wound dressing with acceptable stability and optimum mechanical properties, this biologically active layer was formed on a PCL nanofibrous base layer. The fabricated double-layer wound dressing was analyzed chemically, structurally, mechanically and biologically. ATR-FTIR spectra of the prepared wound dressing contain functional groups of Artemisia annua L. as peroxide groups, etc. SEM micrographs of electrospun gelatin/Artemisia annua L. confirmed the successful electrospinning process for producing Artemisia annua L.-containing nanofibers with mean diameter of 242.00 ± 67.53 nm. In vitro Artemisia annua L. release study of the fabricated wound dressings suggests a sustain release over 7 days for the crosslinked sample. In addition, evaluation of the in vitro structural stability of the prepared wound dressings confirmed the stability of the crosslinked nanofibrous structures in PBS solution environment. Biological study of the Artemisia annua L.-containing wound dressing revealed no cytotoxicity, good proliferation and attachment of the seeded fibroblasts cells and acceptable antibacterial property against Staphylococcus aureus bacteria.
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Affiliation(s)
- Fatemeh Sadat Mirbehbahani
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Fatemeh Hejazi
- Department of Advanced Technologies, Shiraz University, Shiraz, Iran.
| | - Najmeh Najmoddin
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Azadeh Asefnejad
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Chhillar H, Chopra P, Ashfaq MA. Lignans from linseed ( Linum usitatissimum L.) and its allied species: Retrospect, introspect and prospect. Crit Rev Food Sci Nutr 2020; 61:2719-2741. [PMID: 32619358 DOI: 10.1080/10408398.2020.1784840] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lignans are complex diphenolic compounds representing phytoestrogens and occur widely across the plant kingdom. Formed by the coupling of two coniferyl alcohol residues, lignans constitute major plant "specialized metabolites" with exceptional biological attributes that aid in plant defence and provide health benefits in humans by reducing the risk of ailments such as cancer, diabetes etc. Linseed (Linum usitatissimum L.) is one of the richest sources of lignans followed by cereals and legumes. Among the various types of lignans, secoisolariciresinol diglucoside (SDG) is considered as the essential and nutrient rich lignan in linseed. Lignans exhibit established antimitotic, antiviral and anti-tumor properties that contribute to their medicinal value. The present review seeks to provide a holistic view of research in the past and present times revolving around lignans from linseed and its allied species. This review attempts to elucidate sources, structures and functional properties of lignans, along with detailed biosynthetic mechanisms operating in plants. It summarizes various methods for the determination of lignan content in plants. Biotechnological interventions (in planta and in vitro) aimed at enriching lignan content and adoption of integrative approaches that might further enhance lignan content and medicinal and nutraceutical value of Linum spp. have also been discussed.
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Affiliation(s)
- Himanshu Chhillar
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Priyanka Chopra
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Mohd Ashraf Ashfaq
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
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19
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Ma T, Gao H, Zhang D, Shi Y, Zhang T, Shen X, Wu L, Xiang L, Chen S. Transcriptome analyses revealed the ultraviolet B irradiation and phytohormone gibberellins coordinately promoted the accumulation of artemisinin in Artemisia annua L. Chin Med 2020; 15:67. [PMID: 32625243 PMCID: PMC7329506 DOI: 10.1186/s13020-020-00344-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/05/2020] [Indexed: 01/30/2023] Open
Abstract
Background Artemisinin-based combination therapy has become the preferred approach for treating malaria and has successfully reduced malaria-related mortality. Currently, the main source of artemisinin is Artemisia annua L., and thus, it is of strategic importance to enhance artemisinin contents in A. annua plants. Phytohormones and illumination are known to be important external environmental factor that can have notable effects on the production of secondary metabolite. The activities of different hormones can be influenced to varying degrees by light, and thus light and hormones may jointly regulate various processes in plants. Here, we performed transcriptome and metabolome analyses revealed that ultraviolet B irradiation and phytohormone gibberellins coordinately promoted the accumulation of artemisinin in Artemisia annua. Methods Artemisinin analysis was performed by ultra-high performance liquid chromatography-tandem quadrupole mass spectrometry (UPLC-ESI-QqQ-MS/MS). RNA sequencing, GO and KEGG enrichment analysis were applied to analyzing the differentially expressed genes (DEGs) under ultraviolet B irradiation and gibberellins treatments. Weighted gene co-expression network (WGCNA) analyzed the genes in artemisinin‑related modules and identified candidate hub genes in these modules. Results In this study, we found that cross-talk between UV-B and GA induced processes leading to modifications in artemisinin accumulation. A total of 14,762 genes differentially expressed (DEGs) among different treatments were identified by transcriptome analysis. UV-B and GA treatments enhanced the accumulation of artemisinin by up-regulating the expression of the key artemisinin biosynthesis genes ADS and CYP71AV1. According to the high degree value and high expression level, a total of 84 co-expressed transcription factors were identified. Among them, MYB and NAC TFs mainly involved in regulating the biosynthesis of artemisinin. Weighted gene co-expression network analysis revealed that GA + UV in blue modules was positively correlated with artemisinin synthesis, suggesting that the candidate hub genes in these modules should be up-regulated to enhance artemisinin synthesis in response to GA + UV treatment. Conclusion Our study demonstrated the co-regulation of artemisinin biosynthetic pathway genes under ultraviolet B irradiation and phytohormone gibberellins treatment. The co-expression was analysis revealed that the selected MYB and NAC TFs might have regulated the artemisinin biosynthesis gene expression with ADS and CYP71AV1 genes. Weighted gene co-expression network analysis revealed that GA + UV treatment in blue modules was positively correlated with artemisinin synthesis. We established the network to distinguish candidate hub genes in blue modules might be up-regulated to enhance artemisinin synthesis in response to GA + UV treatment.
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Affiliation(s)
- Tingyu Ma
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700 China
| | - Han Gao
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan, 430070 China
| | - Dong Zhang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700 China
| | - Yuhua Shi
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700 China
| | - Tianyuan Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070 China
| | - Xiaofeng Shen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700 China
| | - Lan Wu
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700 China
| | - Li Xiang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700 China
| | - Shilin Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700 China
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20
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Murata K, Kitano T, Yoshimoto R, Takata R, Ube N, Ueno K, Ueno M, Yabuta Y, Teraishi M, Holland CK, Jander G, Okumoto Y, Mori N, Ishihara A. Natural variation in the expression and catalytic activity of a naringenin 7-O-methyltransferase influences antifungal defenses in diverse rice cultivars. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 101:1103-1117. [PMID: 31630460 DOI: 10.1111/tpj.14577] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 09/05/2019] [Accepted: 10/08/2019] [Indexed: 06/10/2023]
Abstract
Phytoalexins play a pivotal role in plant-pathogen interactions. Whereas leaves of rice (Oryza sativa) cultivar Nipponbare predominantly accumulated the phytoalexin sakuranetin after jasmonic acid induction, only very low amounts accumulated in the Kasalath cultivar. Sakuranetin is synthesized from naringenin by naringenin 7-O-methyltransferase (NOMT). Analysis of chromosome segment substitution lines and backcrossed inbred lines suggested that NOMT is the underlying cause of differential phytoalexin accumulation between Nipponbare and Kasalath. Indeed, both NOMT expression and NOMT enzymatic activity are lower in Kasalath than in Nipponbare. We identified a proline to threonine substitution in Kasalath relative to Nipponbare NOMT as the main cause of the lower enzymatic activity. Expanding this analysis to rice cultivars with varying amounts of sakuranetin collected from around the world showed that NOMT induction is correlated with sakuranetin accumulation. In bioassays with Pyricularia oryzae, Gibberella fujikuroi, Bipolaris oryzae, Burkholderia glumae, Xanthomonas oryzae, Erwinia chrysanthemi, Pseudomonas syringae, and Acidovorax avenae, naringenin was more effective against bacterial pathogens and sakuranetin was more effective against fungal pathogens. Therefore, the relative amounts of naringenin and sakuranetin may provide protection against specific pathogen profiles in different rice-growing environments. In a dendrogram of NOMT genes, those from low-sakuranetin-accumulating cultivars formed at least two clusters, only one of which involves the proline to threonine mutation, suggesting that the low sakuranetin chemotype was acquired more than once in cultivated rice. Strains of the wild rice species Oryza rufipogon also exhibited differential sakuranetin accumulation, indicating that this metabolic diversity predates rice domestication.
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Affiliation(s)
- Koichi Murata
- Graduate School of Sustainability Science, Tottori University, Tottori, 680-8553, Japan
| | - Takashige Kitano
- Graduate School of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Riko Yoshimoto
- Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Ryo Takata
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-Cho, Kyoto, 606-8502, Japan
| | - Naoki Ube
- The United Graduate School of Agricultural Sciences, Tottori University, Tottori, 680-8553, Japan
| | - Kotomi Ueno
- Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Makoto Ueno
- Faculty of Life and Environmental Science, Shimane University, Nishikawatsu 1060, Matsue, 690-8504, Japan
| | - Yukinori Yabuta
- Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Masayoshi Teraishi
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-Cho, Kyoto, 606-8502, Japan
| | | | - Georg Jander
- Boyce Thompson Institute for Plant Research, Ithaca, NY, 14853, USA
| | - Yutaka Okumoto
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-Cho, Kyoto, 606-8502, Japan
| | - Naoki Mori
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-Cho, Kyoto, 606-8502, Japan
| | - Atsushi Ishihara
- Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
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21
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Numonov S, Sharopov F, Salimov A, Sukhrobov P, Atolikshoeva S, Safarzoda R, Habasi M, Aisa HA. Assessment of Artemisinin Contents in Selected Artemisia Species from Tajikistan (Central Asia). MEDICINES 2019; 6:medicines6010023. [PMID: 30709043 PMCID: PMC6473495 DOI: 10.3390/medicines6010023] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 01/01/2023]
Abstract
Background: Central Asia is the center of origin and diversification of the Artemisia genus. The genus Artemisia is known to possess a rich phytochemical diversity. Artemisinin is the shining example of a phytochemical isolated from Artemisia annua, which is widely used in the treatment of malaria. There is great interest in the discovery of alternative sources of artemisinin in other Artemisia species. Methods: The hexane extracts of Artemisia plants were prepared with ultrasound-assisted extraction procedures. Silica gel was used as an adsorbent for the purification of Artemisia annua extract. High-performance liquid chromatography with ultraviolet detection was performed for the quantification of underivatized artemisinin from hexane extracts of plants. Results: Artemisinin was found in seven Artemisia species collected from Tajikistan. Content of artemisinin ranged between 0.07% and 0.45% based on dry mass of Artemisia species samples. Conclusions: The artemisinin contents were observed in seven Artemisia species. A. vachanica was found to be a novel plant source of artemisinin. Purification of A. annua hexane extract using silica gel as adsorbent resulted in enrichment of artemisinin.
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Affiliation(s)
- Sodik Numonov
- Research Institution "Chinese-Tajik Innovation Center for Natural Products" of the Tajikistan Academy of Sciences, Ayni str. 299/2, Dushanbe 734063, Tajikistan.
- Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
- Center for Research in Innovative Technologies, Academy of Sciences of the Republic of Tajikistan, Dushanbe 734062, Tajikistan.
| | - Farukh Sharopov
- Research Institution "Chinese-Tajik Innovation Center for Natural Products" of the Tajikistan Academy of Sciences, Ayni str. 299/2, Dushanbe 734063, Tajikistan.
- Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
- Department of Pharmaceutical Technology, Avicenna Tajik State Medical University, Rudaki 139, Dushanbe 734003, Tajikistan.
| | - Aminjon Salimov
- V.I. Nikitin Institute of Chemistry of the Tajikistan Academy of Sciences, Ayni str. 299/2, Dushanbe 734063, Tajikistan.
| | - Parviz Sukhrobov
- Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
| | - Sunbula Atolikshoeva
- Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
| | - Ramazon Safarzoda
- Department of Pharmaceutical Technology, Avicenna Tajik State Medical University, Rudaki 139, Dushanbe 734003, Tajikistan.
| | - Maidina Habasi
- Research Institution "Chinese-Tajik Innovation Center for Natural Products" of the Tajikistan Academy of Sciences, Ayni str. 299/2, Dushanbe 734063, Tajikistan.
- Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
| | - Haji Akber Aisa
- Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
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Czechowski T, Rinaldi MA, Famodimu MT, Van Veelen M, Larson TR, Winzer T, Rathbone DA, Harvey D, Horrocks P, Graham IA. Flavonoid Versus Artemisinin Anti-malarial Activity in Artemisia annua Whole-Leaf Extracts. FRONTIERS IN PLANT SCIENCE 2019; 10:984. [PMID: 31417596 PMCID: PMC6683762 DOI: 10.3389/fpls.2019.00984] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/12/2019] [Indexed: 05/05/2023]
Abstract
Artemisinin, a sesquiterpene lactone produced by Artemisia annua glandular secretory trichomes, is the active ingredient in the most effective treatment for uncomplicated malaria caused by Plasmodium falciparum parasites. Other metabolites in A. annua or related species, particularly flavonoids, have been proposed to either act as antimalarials on their own or act synergistically with artemisinin to enhance antimalarial activity. We identified a mutation that disrupts the CHALCONE ISOMERASE 1 (CHI1) enzyme that is responsible for the second committed step of flavonoid biosynthesis. Detailed metabolite profiling revealed that chi1-1 lacks all major flavonoids but produces wild-type artemisinin levels, making this mutant a useful tool to test the antiplasmodial effects of flavonoids. We used whole-leaf extracts from chi1-1 and mutant lines impaired in artemisinin production in bioactivity in vitro assays against intraerythrocytic P. falciparum Dd2. We found that chi1-1 extracts did not differ from wild-type extracts in antiplasmodial efficacy nor initial rate of cytocidal action. Furthermore, extracts from the A. annua cyp71av1-1 mutant and RNAi lines impaired in amorpha-4,11-diene synthase gene expression, which are both severely compromised in artemisinin biosynthesis but unaffected in flavonoid metabolism, showed very low or no antiplasmodial activity. These results demonstrate that in vitro bioactivity against P. falciparum of flavonoids is negligible when compared to that of artemisinin.
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Affiliation(s)
- Tomasz Czechowski
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Mauro A. Rinaldi
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | | | | | - Tony R. Larson
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Thilo Winzer
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Deborah A. Rathbone
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
- Biorenewables Development Centre, Dunnington, United Kingdom
| | - David Harvey
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Paul Horrocks
- Institute for Science and Technology in Medicine, Keele University, Keele, United Kingdom
- School of Medicine, Keele University, Keele, United Kingdom
| | - Ian A. Graham
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
- *Correspondence: Ian A. Graham,
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Lee AR, Niu KM, Lee WD, Kothari D, Kim SK. Comparison of the Dietary Supplementation of Lactobacillus plantarum, and Fermented and Non-Fermented Artemisia Annua on the Performance, Egg Quality, Serum Cholesterol, and Eggyolk-Oxidative Stability During Storage in Laying Hens. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2019. [DOI: 10.1590/1806-9061-2018-0903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- AR Lee
- Konkuk University, Republic of Korea
| | - KM Niu
- Konkuk University, Republic of Korea
| | - WD Lee
- Konkuk University, Republic of Korea
| | - D Kothari
- Konkuk University, Republic of Korea
| | - SK Kim
- Konkuk University, Republic of Korea
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Ferreira JFS, Benedito VA, Sandhu D, Marchese JA, Liu S. Seasonal and Differential Sesquiterpene Accumulation in Artemisia annua Suggest Selection Based on Both Artemisinin and Dihydroartemisinic Acid may Increase Artemisinin in planta. FRONTIERS IN PLANT SCIENCE 2018; 9:1096. [PMID: 30154807 PMCID: PMC6102481 DOI: 10.3389/fpls.2018.01096] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 07/06/2018] [Indexed: 05/21/2023]
Abstract
Commercial Artemisia annua crops are the sole source of artemisinin (ART) worldwide. Data on seasonal accumulation and peak of sesquiterpenes, especially ART in commercial A. annua, is lacking while current breeding programs focus only on ART and plant biomass, but ignores dihydroartemisinic acid (DHAA) and artemisinic acid (AA). Despite past breeding successes, plants richer in ART are needed to decrease prices of artemisinin-combination therapy (ACT). Our results show that sesquiterpene concentrations vary greatly along the growing season and that sesquiterpene profiles differ widely among chemotypes. Field studies with elite Brazilian, Chinese, and Swiss germplasms established that ART peaked in vegetative plants from late August to early September, suggesting that ART is related to the photoperiod, not flowering. DHAA peaks with ART in Chinese and Swiss plants, but decreases, as ART increases, in Brazilian plants, while AA remained stable through the season in these genotypes. Chinese plants peaked at 0.9% ART, 1.6% DHAA; Brazilian plants at 0.9% ART, with less than 0.4% DHAA; Swiss plants at 0.8% ART and 1% DHAA. At single-date harvests, seeded Swiss plants produced 0.55-1.2% ART, with plants being higher in DHAA than ART; Brazilian plants produced 0.33-1.5% ART, with most having higher ART than DHAA. Elite germplasms produced from 0.02-0.43% AA, except Sandeman-UK (0.4-1.1% AA). Our data suggest that different chemotypes, high in ART and DHAA, have complementary pathways, while competing with AA. Crossing plants high in ART and DHAA may generate hybrids with higher ART than currently available in commercial germplasms. Selecting for high ART and DHAA (and low AA) can be a valuable approach for future selection and breeding to produce plants more efficient in transforming DHAA into ART in planta and during post-harvest. This novel approach could change the breeding focus of A. annua and other pharmaceutical species that produce more than one desired metabolite in the same pathway. Obtaining natural variants with high ART content will empower countries and farmers who select, improve, and cultivate A. annua as a commercial pharmaceutical crop. This selection approach could enable ART to be produced locally where it is most needed to fight malaria and other parasitic neglected diseases.
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Affiliation(s)
- Jorge F. S. Ferreira
- US Salinity Laboratory, Riverside, CA, United States
- *Correspondence: Jorge F. S. Ferreira
| | - Vagner A. Benedito
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV, United States
| | | | - José A. Marchese
- Biochemistry and Plant Molecular Physiology Laboratory, Agronomy Department, Federal University of Technology–Paraná, Pato Branco, Brazil
| | - Shuoqian Liu
- Department of Tea Science, College of Horticulture and Hardening, Hunan Agricultural University, Changsha, China
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