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Li Q, Jia E, Yan Y, Ma R, Dong J, Ma P. Using the Strategy of Inducing and Genetically Transforming Plant Suspension Cells to Produce High Value-Added Bioactive Substances. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:699-710. [PMID: 35018771 DOI: 10.1021/acs.jafc.1c05712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Plants can produce many functional bioactive substances. The suspension cell system of plants can be constructed based on its characteristics to realize the large-scale production of valuable products. In this review, we mainly talk about the main strategies, elicitation, and genetic transformation to improve the yield of active substances by using this system. Meanwhile, we focus on the challenges hiding in the practical application and the future prospects and provide new ideas and the theoretical basis for obtaining numerous bioactive substances from plants.
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Affiliation(s)
- Qian Li
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Entong Jia
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Yurong Yan
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Rui Ma
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, Jilin 130033, People's Republic of China
| | - Juane Dong
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Pengda Ma
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
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Das D, Bandyopadhyay M. Manipulation of DXP pathway for andrographolide production in callus cultures of Andrographis paniculata. PLANTA 2021; 254:23. [PMID: 34223986 DOI: 10.1007/s00425-021-03674-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
Greening of in vitro callus cultures and andrographolide over-accumulation was achieved by manipulating light exposure and media composition, when the biosynthetic cascade was channeled through the DXP pathway. Andrographolide, the primary biologically active compound of Andrographis paniculata, is produced through coordinated action of two pathways, the classical cytosolic mevalonate pathway and the alternative plastidial non-mevalonate pathway (Deoxy-xylulose Phosphate pathway). In vitro callus cultures of A. paniculata are useful sources of production, as well as, manipulation of andrographolide, and the present study was designed to explore the strategy of pathway inhibition for its overproduction. When the cytosolic mevalonate pathway blocker, lovastatin, was applied to callus cultures of A. paniculata, andrographolide production was enhanced in comparison to untreated control. In contrast, treatment of the callus tissue with the DXP-pathway blocker, fosmidomycin, led to depletion in andrographolide production. The present study also showed that silver nitrate, a potent elicitor of andrographolide production in in vitro callus culture, when added in combination with the pathway inhibitors resulted in alterations in andrographolide production. The highest andrographolide production was obtained in callus treated with a combination of silver nitrate and lovastatin, indicating a predominant role of the plastidial DXP pathway in andrographolide biosynthesis. A positive co-relation with chlorophyll content and andrographolide production in in vitro callus cultures (untreated and treated) observed also supported the above assumption. It could be inferred from this study that greening of callus tissue through organellar organization was a potent strategy for enhancing andrographolide accumulation in callus tissues of A. paniculata.
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Affiliation(s)
- Debalina Das
- Plant Molecular Cytogenetics and Plant Biotechnology Laboratory, Department of Botany, Centre of Advanced Studies, University of Calcutta, Kolkata, West Bengal, 700019, India
| | - Maumita Bandyopadhyay
- Plant Molecular Cytogenetics and Plant Biotechnology Laboratory, Department of Botany, Centre of Advanced Studies, University of Calcutta, Kolkata, West Bengal, 700019, India.
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Ahmad S, Datta S, Katna J, Shrivastav D, Narayan S, Umar S, Sastry J, Mitra R. Effect of salinity stress on growth, water content, and guggulsterone production in callus cultures of Commiphora wightii (Arnott.) Bhandari. Pharmacogn Mag 2021. [DOI: 10.4103/pm.pm_514_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Wang W, Li Y, Dang P, Zhao S, Lai D, Zhou L. Rice Secondary Metabolites: Structures, Roles, Biosynthesis, and Metabolic Regulation. Molecules 2018; 23:E3098. [PMID: 30486426 PMCID: PMC6320963 DOI: 10.3390/molecules23123098] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/21/2018] [Accepted: 11/22/2018] [Indexed: 02/05/2023] Open
Abstract
Rice (Oryza sativa L.) is an important food crop providing energy and nutrients for more than half of the world population. It produces vast amounts of secondary metabolites. At least 276 secondary metabolites from rice have been identified in the past 50 years. They mainly include phenolic acids, flavonoids, terpenoids, steroids, alkaloids, and their derivatives. These metabolites exhibit many physiological functions, such as regulatory effects on rice growth and development, disease-resistance promotion, anti-insect activity, and allelopathic effects, as well as various kinds of biological activities such as antimicrobial, antioxidant, cytotoxic, and anti-inflammatory properties. This review focuses on our knowledge of the structures, biological functions and activities, biosynthesis, and metabolic regulation of rice secondary metabolites. Some considerations about cheminformatics, metabolomics, genetic transformation, production, and applications related to the secondary metabolites from rice are also discussed.
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Affiliation(s)
- Weixuan Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Yuying Li
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Pengqin Dang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Siji Zhao
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
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Singh S, Pandey P, Ghosh S, Banerjee S. Anti-cancer labdane diterpenoids from adventitious roots of Andrographis paniculata: augmentation of production prospect endowed with pathway gene expression. PROTOPLASMA 2018; 255:1387-1400. [PMID: 29560544 DOI: 10.1007/s00709-018-1211-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 01/14/2018] [Indexed: 06/08/2023]
Abstract
Andrographolide (AD) is the time-honoured pharmacologically active constituent of the traditionally renowned medicinal plant-Andrographis paniculata. Advancements in the target-oriented drug discovery process have further unravelled the immense therapeutic credibility of another unique molecule-neoandrographolide (NAD). The escalated market demand of these anti-cancer diterpenes is increasingly facing unrelenting hurdles of demand and supply disparity, attributable to their limited yield. Callus and adventitious root cultures were generated to explore their biosynthetic potentials which first time revealed NAD production along with AD. Optimization of the types and concentrations of auxins along with media form and cultivation time led to the successful tuning towards establishing adventitious roots as a superior production alternative for both AD/NAD. Supplementation of IBA to the NAA + Kn-containing MS medium boosted the overall growth and AD/NAD synthesis in the adventitious roots. Compared to control leaves, the adventitious root exhibited about 2.61- and 8.8-fold higher contents of AD and NAD, respectively. The qRT-PCR involving nine key pathway genes was studied, which revealed upregulation of GGPS1 and HMGR1/2 genes and downregulation of DXS1/2 and HDR1/2 genes in the adventitious root as compared to that in the control leaves. Such observations highlight that in vitro cultures can serve as efficient production alternatives for AD/NAD as the cytosolic genes (HMGR1/2 of MVA pathway) are competent enough to take over from the plastidial genes (DXS1/2 and HDR1/2 of MEP pathway), provided the accredited first branch-point regulatory gene (GGPS) expression and the culture requirements are optimally fulfilled.
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Affiliation(s)
- Sailendra Singh
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, Uttar Pradesh, 226015, India
| | - Pallavi Pandey
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, Uttar Pradesh, 226015, India
| | - Sumit Ghosh
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, Uttar Pradesh, 226015, India
| | - Suchitra Banerjee
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, Uttar Pradesh, 226015, India.
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Jamil SZMR, Rohani ER, Baharum SN, Noor NM. Metabolite profiles of callus and cell suspension cultures of mangosteen. 3 Biotech 2018; 8:322. [PMID: 30034986 DOI: 10.1007/s13205-018-1336-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 07/06/2018] [Indexed: 11/26/2022] Open
Abstract
Callus was induced from mangosteen (Garcinia mangostana L.) young purple-red leaves on Murashige and Skoog basal medium with various combinations of plant growth regulators. Murashige and Skoog medium with 4.44 µM 6-benzylaminopurine and 4.52 µM 2,4-dichlorophenoxyacetic acid was the best for friable callus induction. This friable callus was used for the initiation of cell suspension culture. The effects of different combinations of 6-benzylaminopurine and 2,4-dichlorophenoxyacetic acid, carbon sources and inoculum sizes were tested. It was found that combination of 2.22 µM 6-benzylaminopurine + 2.26 µM 2,4-dichlorophenoxyacetic acid, glucose (30 g/l) and 1.5 g/50 ml inoculum size was the best for cell growth. Callus and cell suspension cultures were then treated either with 100 µM methyl jasmonate as an elicitor for 5 days, or 0.5 g/l casein hydrolysate as an organic supplement for 7 days. Metabolites were then extracted and profiled using liquid chromatography-time of flight mass spectrometry. Multivariate discriminant analyses revealed significant metabolite differences (P ≤ 0.05) for callus and suspension cells treated either with methyl jasmonate or casein hydrolysate. Based on MS/MS data, methyl jasmonate stimulated the production of an alkaloid (thalsimine) and fatty acid (phosphatidyl ethanolamine) in suspension cells while in callus, an alkaloid (thiacremonone) and glucosinolate (7-methylthioheptanaldoxime) was produced. Meanwhile casein hydrolysate stimulated the production of alkaloids such as 3ß,6ß-dihydroxynortropane and cis-hinokiresinol and triterpenoids such as schidigerasaponin and talinumoside in suspension cells. This study provides evidence on the potential of secondary metabolite production from in vitro culture of mangosteen.
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Affiliation(s)
| | - Emelda Rosseleena Rohani
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor Malaysia
| | - Syarul Nataqain Baharum
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor Malaysia
| | - Normah Mohd Noor
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor Malaysia
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Szopa A, Kokotkiewicz A, Król A, Luczkiewicz M, Ekiert H. Improved production of dibenzocyclooctadiene lignans in the elicited microshoot cultures of Schisandra chinensis (Chinese magnolia vine). Appl Microbiol Biotechnol 2017; 102:945-959. [PMID: 29181570 PMCID: PMC5756551 DOI: 10.1007/s00253-017-8640-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 11/04/2017] [Accepted: 11/07/2017] [Indexed: 11/24/2022]
Abstract
Dibenzocyclooctadiene lignans are a specific group of secondary metabolites that occur solely in Schisandra chinensis. The aim of the presented work was to boost the accumulation of lignans in the agitated microshoot cultures of S. chinensis, using different elicitation schemes. The experiments included testing of various concentrations and supplementation times of cadmium chloride (CdCl2), chitosan (Ch), yeast extract (YeE), methyl jasmonate (MeJa), and permeabilizing agent—dimethylsulfoxide (DMSO). After 30 days, the microshoots were harvested and evaluated for growth parameters and lignan content by LC-DAD method. The analyses showed enhanced production of lignans in the elicited S. chinensis microshoots, whereas the respective media samples contained only trace amounts of the examined compounds (< 5 mg/l). Elicitation with CdCl2 caused up to 2-fold increase in the total lignan content (max. ca. 730 mg/100 g DW after the addition of 1000 μM CdCl2 on the tenth day). Experiments with chitosan resulted in up to 1.35-fold increase in lignan concentration (max. ca. 500 mg/100 g DW) after the supplementation with 50 mg/l on the first day and 200 mg/l on the tenth day. High improvement of lignan production was also recorded after YeE elicitation. After the elicitation with 5000 mg/l of YeE on the first day of the growth period, and with 1000 and 3000 mg/l on the 20th day, the lignan production increased to the same degree—about 1.8-fold. The supplementation with 1000 mg/l YeE on the 20th day of the growth cycle was chosen as the optimal elicitation scheme, for the microshoot cultures maintained in Plantform temporary immersion system—the total content of the estimated lignans was equal to 831.6 mg/100 g DW.
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Affiliation(s)
- Agnieszka Szopa
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, ul. Medyczna 9, 30-688, Kraków, Poland.
| | - Adam Kokotkiewicz
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, al. gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Agata Król
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, al. gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Maria Luczkiewicz
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, al. gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Halina Ekiert
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, ul. Medyczna 9, 30-688, Kraków, Poland
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Farag MA, Al-Mahdy DA, Meyer A, Westphal H, Wessjohann LA. Metabolomics reveals biotic and abiotic elicitor effects on the soft coral Sarcophyton ehrenbergi terpenoid content. Sci Rep 2017; 7:648. [PMID: 28381824 PMCID: PMC5428729 DOI: 10.1038/s41598-017-00527-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 03/01/2017] [Indexed: 01/06/2023] Open
Abstract
The effects of six biotic and abiotic elicitors, i.e. MeJA (methyl jasmonate), SA (salicylic acid), ZnCl2, glutathione and β-glucan BG (fungal elicitor), and wounding, on the secondary metabolite accumulation in the soft coral Sarcophyton ehrenbergi were assessed. Upon elicitation, metabolites were extracted and analysed by ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). Except for MeJA, no differences in photosynthetic efficiency were observed after treatments, suggesting the absence of a remarkable stress on primary production. Chemometric analyses of UPLC-MS data showed clear segregation of SA and ZnCl2 elicited samples at 24 and 48 h post elicitation. Levels of acetylated diterpene and sterol viz., sarcophytonolide I and cholesteryl acetate, was increased in ZnCl2 and SA groups, respectively, suggesting an activation of specific acetyl transferases. Post elicitation, sarcophytonolide I level increased 132 and 17-folds at 48 h in 0.1 mM SA and 1 mM ZnCl2 groups, respectively. Interestingly, decrease in sarcophine, a major diterpene was observed only in response to ZnCl2, whereas no change was observed in sesquiterpene content following treatments. To the best of our knowledge, this study provides the first documentation for elicitation effects on a soft corals secondary metabolome and suggests that SA could be applied to increase diterpenoid levels in corals.
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Affiliation(s)
- Mohamed A Farag
- Pharmacognosy department, College of Pharmacy, Cairo University, Cairo, Kasr El Aini st., P.B. 11562, Egypt.
| | - Dalia A Al-Mahdy
- Pharmacognosy department, College of Pharmacy, Cairo University, Cairo, Kasr El Aini st., P.B. 11562, Egypt
| | - Achim Meyer
- Leibniz Centre for Tropical Marine Research, Fahrenheit Str.6, D-28359, Bremen, Germany
| | - Hildegard Westphal
- Leibniz Centre for Tropical Marine Research, Fahrenheit Str.6, D-28359, Bremen, Germany
- Bremen University, Bremen, Germany
| | - Ludger A Wessjohann
- Leibniz Institute of Plant Biochemistry, Dept. Bioorganic Chemistry, Weinberg 3, D-06120, Halle (Saale), Germany.
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Production of Active Compounds in Medicinal Plants: From Plant Tissue Culture to Biosynthesis. CHINESE HERBAL MEDICINES 2017. [DOI: 10.1016/s1674-6384(17)60085-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Zaheer M, Giri CC. Enhanced diterpene lactone (andrographolide) production from elicited adventitious root cultures of Andrographis paniculata. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-016-2771-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lu X, Tang K, Li P. Plant Metabolic Engineering Strategies for the Production of Pharmaceutical Terpenoids. FRONTIERS IN PLANT SCIENCE 2016; 7:1647. [PMID: 27877181 PMCID: PMC5099148 DOI: 10.3389/fpls.2016.01647] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/19/2016] [Indexed: 05/18/2023]
Abstract
Pharmaceutical terpenoids belong to the most diverse class of natural products. They have significant curative effects on a variety of diseases, such as cancer, cardiovascular diseases, malaria and Alzheimer's disease. Nowadays, elicitors, including biotic and abiotic elicitors, are often used to activate the pathway of secondary metabolism and enhance the production of target terpenoids. Based on Agrobacterium-mediated genetic transformation, several plant metabolic engineering strategies hold great promise to regulate the biosynthesis of pharmaceutical terpenoids. Overexpressing terpenoids biosynthesis pathway genes in homologous and ectopic plants is an effective strategy to enhance the yield of pharmaceutical terpenoids. Another strategy is to suppress the expression of competitive metabolic pathways. In addition, global regulation which includes regulating the relative transcription factors, endogenous phytohormones and primary metabolism could also markedly increase their yield. All these strategies offer great opportunities to enhance the supply of scarce terpenoids drugs, reduce the price of expensive drugs and improve people's standards of living.
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Affiliation(s)
- Xu Lu
- State Key Laboratory of Natural Medicines, China Pharmaceutical UniversityNanjing, China
| | - Kexuan Tang
- Plant Biotechnology Research Center, School of Agriculture and Biology, Shanghai Jiao Tong UniversityShanghai, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical UniversityNanjing, China
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Ooi CT, Syahida A, Stanslas J, Maziah M. The influence of methyl jasmonate, cholesterol and l-arginine on solasodine production in hairy root culture of Solanum mammosum. Eng Life Sci 2016. [DOI: 10.1002/elsc.201500083] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Chai Theam Ooi
- Laboratory of Natural Products, Institute of BioScience; Universiti Putra Malaysia; Serdang, Selangor Darul Ehsan Malaysia
| | - Ahmad Syahida
- Laboratory of Natural Products, Institute of BioScience; Universiti Putra Malaysia; Serdang, Selangor Darul Ehsan Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences; Universiti Putra Malaysia; Serdang, Selangor Darul Ehsan Malaysia
| | - Johnson Stanslas
- Laboratory of Natural Products, Institute of BioScience; Universiti Putra Malaysia; Serdang, Selangor Darul Ehsan Malaysia
- Department of Medicine, Faculty of Medicine and Health Sciences; Universiti Putra Malaysia; Serdang, Selangor Darul Ehsan Malaysia
| | - Mahmood Maziah
- Laboratory of Natural Products, Institute of BioScience; Universiti Putra Malaysia; Serdang, Selangor Darul Ehsan Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences; Universiti Putra Malaysia; Serdang, Selangor Darul Ehsan Malaysia
- Laboratory of Food Crops, Institute of Tropical Agriculture; Universiti Putra Malaysia; Serdang, Selangor Darul Ehsan Malaysia
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Wang XM, Yang B, Ren CG, Wang HW, Wang JY, Dai CC. Involvement of abscisic acid and salicylic acid in signal cascade regulating bacterial endophyte-induced volatile oil biosynthesis in plantlets of Atractylodes lancea. PHYSIOLOGIA PLANTARUM 2015; 153:30-42. [PMID: 24862990 DOI: 10.1111/ppl.12236] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 05/04/2014] [Accepted: 05/11/2014] [Indexed: 05/02/2023]
Abstract
The enormous biological diversity of endophytes, coupled with their potential to enhance the production of bioactive metabolites in plants, has driven research efforts focusing on endophytes. However, limited information is available on the impacts of bacterial endophytes on plant secondary metabolism and signaling pathways involved. This work showed that an endophytic Acinetobacter sp. ALEB16, capable of activating accumulation of plant volatile oils, also induced abscisic acid (ABA) and salicylic acid (SA) production in Atractylodes lancea. Pre-treatment of plantlets with biosynthetic inhibitors of ABA or SA blocked the bacterium-induced volatile production. ABA inhibitors suppressed not only the bacterium-induced volatile accumulation but also the induced ABA and SA generation; nevertheless, SA inhibitors did not significantly inhibit the induced ABA biosynthesis, implying that SA acted downstream of ABA production. These results were confirmed by observations that exogenous ABA and SA reversed the inhibition of bacterium-induced volatile accumulation by inhibitors. Transcriptional activities of genes in sesquiterpenoid biosynthesis also increased significantly with bacterium, ABA and SA treatments. Mevalonate pathway proved to be the main source of isopentenyldiphosphate for bacterium-induced sesquiterpenoids, as assessed in experiments using specific terpene biosynthesis inhibitors. These results suggest that Acinetobacter sp. acts as an endophytic elicitor to stimulate volatile biosynthesis of A. lancea via an ABA/SA-dependent pathway, thereby yielding additional insight into the interconnection between ABA and SA in biosynthesis-related signaling pathways.
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Affiliation(s)
- Xiao-Mi Wang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, China
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Andrographis paniculata (Burm. f.) Wall. ex Nees: a review of ethnobotany, phytochemistry, and pharmacology. ScientificWorldJournal 2014; 2014:274905. [PMID: 25950015 PMCID: PMC4408759 DOI: 10.1155/2014/274905] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 09/25/2014] [Accepted: 09/25/2014] [Indexed: 12/22/2022] Open
Abstract
As aboriginal sources of medications, medicinal plants are used from the ancient times. Andrographis paniculata is one of the highly used potential medicinal plants in the world. This plant is traditionally used for the treatment of common cold, diarrhoea, fever due to several infective cause, jaundice, as a health tonic for the liver and cardiovascular health, and as an antioxidant. It is also used to improve sexual dysfunctions and serve as a contraceptive. All parts of this plant are used to extract the active phytochemicals, but the compositions of phytoconstituents widely differ from one part to another and with place, season, and time of harvest. Our extensive data mining of the phytoconstituents revealed more than 55 ent-labdane diterpenoids, 30 flavonoids, 8 quinic acids, 4 xanthones, and 5 rare noriridoids. In this review, we selected only those compounds that pharmacology has already reported. Finally we focused on around 46 compounds for further discussion. We also discussed ethnobotany of this plant briefly. Recommendations addressing extraction process, tissue culture, and adventitious rooting techniques and propagation under abiotic stress conditions for improvement of phytoconstituents are discussed concisely in this paper. Further study areas on pharmacology are also proposed where needed.
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Cai Z, Kastell A, Speiser C, Smetanska I. Enhanced Resveratrol Production in Vitis vinifera Cell Suspension Cultures by Heavy Metals Without Loss of Cell Viability. Appl Biochem Biotechnol 2013; 171:330-40. [DOI: 10.1007/s12010-013-0354-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 06/17/2013] [Indexed: 11/30/2022]
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