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Zhang C, Guo X, Wang H, Dai X, Yan B, Wang S, Guo L. Induction and metabolomic analysis of hairy roots of Atractylodes lancea. Appl Microbiol Biotechnol 2023; 107:6655-6670. [PMID: 37688598 DOI: 10.1007/s00253-023-12735-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/26/2023] [Accepted: 08/20/2023] [Indexed: 09/11/2023]
Abstract
Atractylodes lancea is an important source of traditional Chinese medicines. Sesquiterpenoids are the key active compounds in A. lancea, and their presence determines the quality of the material. Hairy hoot (HR) culture is a potential method to produce medicinally active compounds industrially; however, the induction and metabolic profiling of A. lancea HR have not been reported. We found that optimal induction of A. lancea HR was achieved by Agrobacterium rhizogenes strain C58C1 using the young leaves of tissue culture seedlings in the rooting stage as explants. Ultra-performance liquid chromatography-tandem mass spectrometric analyses of the chemical compositions of HR and normal root (NR) led to the annotation of 1046 metabolites. Over 200 differentially accumulated metabolites were identified, with 41 found to be up-regulated in HR relative to NR and 179 down-regulated in HR. Specifically, atractylodin levels were higher in HR, while the levels of β-eudesmol and hinesol were higher in NR. Metabolic pathway analyses showed a significant difference in metabolites of the shikimate acid pathway between HR and NR. Five A. lancea compounds are potential biomarkers for evaluation of HR and NR quality. This study provides an important reference for the application of HR for the production of medicinally active compounds. KEY POINTS: • We established an efficient protocol for the induction of HR in A. lancea • HR was found to have a significantly higher amount of atractylodin than did NRs • Metabolic pathway analyses showed a significant difference in metabolites of the shikimate acid pathway between HR and NR.
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Affiliation(s)
- Chengcai Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China
| | - Xiuzhi Guo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China
| | - Hongyang Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China
| | - Xiaoyu Dai
- Dexing Research and Training Center of Chinese Medical Sciences, Dexing, 334220, People's Republic of China
| | - Binbin Yan
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China
- Dexing Research and Training Center of Chinese Medical Sciences, Dexing, 334220, People's Republic of China
| | - Sheng Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China.
- Dexing Research and Training Center of Chinese Medical Sciences, Dexing, 334220, People's Republic of China.
| | - Lanping Guo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China.
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Dey A, Roy D, Mohture VM, Ghorai M, Rahman MH, Anand U, Dewanjee S, Radha, Kumar M, Prasanth DA, Jha NK, Jha SK, Shekhawat MS, Pandey DK. Biotechnological interventions and indole alkaloid production in Rauvolfia serpentina. Appl Microbiol Biotechnol 2022; 106:4867-4883. [PMID: 35819514 DOI: 10.1007/s00253-022-12040-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 06/16/2022] [Accepted: 06/18/2022] [Indexed: 11/02/2022]
Abstract
Rauvolfia serpentina (L). Benth. ex Kurz. (Apocynaceae), commonly known as Sarpagandha or Indian snakeroot, has long been used in the traditional treatment of snakebites, hypertension, and mental illness. The plant is known to produce an array of indole alkaloids such as reserpine, ajmaline, amalicine, etc. which show immense pharmacological and biomedical significance. However, owing to its poor seed viability, lesser germination rate and overexploitation for several decades for its commercially important bioactive constituents, the plant has become endangered in its natural habitat. The present review comprehensively encompasses the various biotechnological tools employed in this endangered Ayurvedic plant for its in vitro propagation, role of plant growth regulators and additives in direct and indirect regeneration, somatic embryogenesis and synthetic seed production, secondary metabolite production in vitro, and assessment of clonal fidelity using molecular markers and genetic transformation. In addition, elicitation and other methods of optimization of its indole-alkaloids are also described herewith. KEY POINTS: • Latest literature on in vitro propagation of Rauvolfia serpentina • Biotechnological production and optimization of indole alkaloids • Clonal fidelity and transgenic studies in R. serpentina.
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Affiliation(s)
- Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India.
| | - Debleena Roy
- PG Department of Botany, Lady Brabourne College, Kolkata, West Bengal, India
| | - Vikas Moreshwar Mohture
- Department of Botany, Rashtrapita Mahatma Gandhi Arts and Science College, Nagbhid, Maharashtra, India, 441205
| | - Mimosa Ghorai
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India
| | - Md Habibur Rahman
- Department of Global Medical Science, Wonju College of Medicine, Yonsei University, Gangwon-do, Wonju, 26426, Korea
| | - Uttpal Anand
- Department of Life Sciences, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel
| | - Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700 032, West Bengal, India
| | - Radha
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, Himachal Pradesh, India
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR - Central Institute for Research On Cotton Technology, Mumbai, 400019, India
| | - Dorairaj Arvind Prasanth
- Department of Microbiology, School of Biosciences, Periyar University, Salem, 636011, Tamilnadu, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida 201310, Uttar Pradesh, India
| | - Saurabh Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida 201310, Uttar Pradesh, India.,Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, 140413, India.,Department of Biotechnology, School of Applied & Life Sciences (SALS), Uttaranchal University, Dehradun, 248007, India
| | - Mahipal S Shekhawat
- Plant Biotechnology Unit, Kanchi Mamunivar Government Institute for Postgraduate Studies and Research, Puducherry, 605 008, India
| | - Devendra Kumar Pandey
- Department of Biotechnology, Faculty of Technology and Sciences, Lovely Professional University, Phagwara, Punjab, India.
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Determination of the Qualitative Composition of Biologically-Active Substances of Extracts of In Vitro Callus, Cell Suspension, and Root Cultures of the Medicinal Plant Rhodiola rosea. Biomolecules 2021; 11:biom11030365. [PMID: 33673508 PMCID: PMC7997454 DOI: 10.3390/biom11030365] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/18/2021] [Accepted: 02/23/2021] [Indexed: 12/11/2022] Open
Abstract
The results of the qualitative composition analysis of the dried biomass extracts of in vitro callus, cell suspension, and root cultures show that the main biologically active substances (BAS) in the medicinal plant, Rhodiola rosea, are 6-C-(1-(4-hydroxyphenyl)ethyl)aromadendrin (25 mg, yield 0.21%), 2-(3,7-dihydroxy-2-(2-hydroxypropan-2-yl)-2,3-dihydrobenzofuran-5-yl)-6,7-dihydroxychroman-4-one (23 mg, yield 0.2%), 2-(3,4-dimethoxyphenyl)-5,7-dimethoxychroman-4-one (175 mg, yield 1.5%), 5,7-dihydroxy-2-(4-hydroxy-3-(2-(4-hydroxyphenyl)-4-oxo-4H-chromen-6-yl)phenyl)-4H-chromen-4-one (45 mg, yield 0.5%), 5,6,7,8-tetrahydroxy-4-methoxyflavone (0.35 mg, 0.5%). BAS from the dried biomass extracts of in vitro callus, cell suspension, and root cultures of Rhodiola rosea will be used for the production of pharmaceuticals and dietary supplements with antitumor, antimicrobial, and antioxidant effects.
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Balasubramani S, Ranjitha Kumari BD, Moola AK, Sathish D, Prem Kumar G, Srimurali S, Babu Rajendran R. Enhanced Production of β-Caryophyllene by Farnesyl Diphosphate Precursor-Treated Callus and Hairy Root Cultures of Artemisia vulgaris L. FRONTIERS IN PLANT SCIENCE 2021; 12:634178. [PMID: 33859659 PMCID: PMC8042329 DOI: 10.3389/fpls.2021.634178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 02/15/2021] [Indexed: 05/17/2023]
Abstract
Artemisia vulgaris L. produces a wide range of valuable secondary metabolites. The aim of the present study is to determine the effects of various concentrations of farnesyl diphosphate (FDP) on β-caryophyllene content in both callus and hairy root (HR) cultures regeneration from leaf explants of A. vulgaris L. Murashige and Skoog (MS) medium supplemented with various concentrations of 2,4-dichlorophenoxyacetic acid (2,4D; 4-13 μM), α-naphthaleneacetic acid (NAA; 5-16 μM), and FDP (1 and 3 μM) was used for callus induction and HR regeneration from leaf explants of A. vulgaris L. In this study, precursor-treated (2,4D 13.5 μM + FDP 3 μM) callus displayed the highest biomass fresh weight (FW)/dry weight (DW): 46/25 g, followed by NAA 10.7 μM + FDP 3 μM with FW/DW: 50/28 g. Two different Agrobacterium rhizogenes strains (A4 and R1000) were evaluated for HR induction. The biomass of HRs induced using half-strength MS + B5 vitamins with 3 μM FDP was FW/DW: 40/20 g and FW/DW: 41/19 g, respectively. To determine β-caryophyllene accumulation, we have isolated the essential oil from FDP-treated calli and HRs and quantified β-caryophyllene using gas chromatography-mass spectrometry (GC-MS). The highest production of β-caryophyllene was noticed in HR cultures induced using A4 and R1000 strains on half-strength MS medium containing 3 μM FDP, which produced 2.92 and 2.80 mg/ml β-caryophyllene, respectively. The optimized protocol can be used commercially by scaling up the production of a β-caryophyllene compound in a short span of time.
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Affiliation(s)
- Sundararajan Balasubramani
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
- *Correspondence: Sundararajan Balasubramani,
| | - B. D. Ranjitha Kumari
- Department of Botany, Bharathidasan University, Tiruchirappalli, India
- B. D. Ranjitha Kumari,
| | | | - D. Sathish
- Department of Biotechnology, Bharathidasan University, Tiruchirappalli, India
| | - G. Prem Kumar
- China-USA Citrus Huanglongbing Joint Laboratory, National Navel Orange Engineering Research Center, Gannan Normal University, Ganzhou, China
| | - S. Srimurali
- ICMR-National Institute of Nutrition, Hyderabad, India
| | - R. Babu Rajendran
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, India
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Hairy root culture technology: applications, constraints and prospect. Appl Microbiol Biotechnol 2020; 105:35-53. [PMID: 33226470 DOI: 10.1007/s00253-020-11017-9] [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: 10/06/2020] [Revised: 11/04/2020] [Accepted: 11/09/2020] [Indexed: 12/18/2022]
Abstract
Hairy root (HR) culture, a successful biotechnology combining in vitro tissue culture with recombinant DNA machinery, is intended for the genetic improvement of plants. This technology has been put to use since the last three decades for genetic advancement of medicinal and aromatic plants and also to harvest the economical products in the form of secondary metabolites that are significantly important for their ethnobotanical and pharmacological properties. It also provides an efficient way out for the quicker extraction and quantification of the valuable phytochemicals. The current review provides an account of the in vitro HR culture technology and its wide-scale applications in the field of research as well as in pharmaceutical industries. Different facets of HR with respect to the culture establishment, phytochemical production as well as research investigations concerning the areas of gene manipulation, biotransformation of the secondary metabolites, phytoremediation, their industrial utilisations and different problems encountered during the application of this technology have been covered in this appraisal. Eventually, an idea has been provided on HR about the recent trends on the progress of this technology that may open up newer prospects in near future and calls for further research and explorations in this field. KEY POINTS: • Genetic engineering-based HR culture aims towards enhanced secondary metabolite production. • This review explores an insight in the HR technology and its multi-faceted approaches. • Up-to-date ground-breaking research applications and constraints of HR culture are discussed.
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Mukherjee E, Gantait S, Kundu S, Sarkar S, Bhattacharyya S. Biotechnological interventions on the genus Rauvolfia: recent trends and imminent prospects. Appl Microbiol Biotechnol 2019; 103:7325-7354. [PMID: 31363825 DOI: 10.1007/s00253-019-10035-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/14/2019] [Accepted: 07/15/2019] [Indexed: 11/30/2022]
Abstract
Rauvolfia spp., also known as devil peppers, are a group of evergreen shrubs and trees. Among the ~ 76 various species, Rauvolfia serpentina is the most important one as it finds its use as an important medicinal plant. It is commonly known as the Indian snakeroot plant or Sarpagandha. The plant is rich in multiple secondary metabolites. Some of the well-known secondary metabolites are reserpine, ajmaline, ajmalicine, serpentine, yohimbine, etc. Alkaloids are also found in all parts of the plant but the richest sources are the roots. Since ancient times, roots (mainly due to reserpine) have been utilized in various Ayurvedic and Unani medicinal preparations for the treatment of diseases like hypertension, anxiety, insomnia and schizophrenia. Apart from this, there are many other pharmacological and ethnobotanical uses of this plant. There are a number of published reports regarding tissue culture techniques on Rauvolfia spp. The current review mainly illustrates and discusses the various in vitro biotechnological aspects such as direct regeneration, indirect regeneration via callus formation, somatic embryogenesis, synthetic seed production, hairy root culture, polyploidy induction and secondary metabolite estimation, which provides significant ideas regarding the ongoing research activities and future prospects related to the genetic improvement of this genus.
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Affiliation(s)
- Eashan Mukherjee
- Crop Research Unit (Genetics and Plant Breeding), Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India
| | - Saikat Gantait
- Crop Research Unit (Genetics and Plant Breeding), Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India.
| | - Suprabuddha Kundu
- Department of Agricultural Biotechnology, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India
| | - Sutanu Sarkar
- Crop Research Unit (Genetics and Plant Breeding), Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India
| | - Somnath Bhattacharyya
- Crop Research Unit (Genetics and Plant Breeding), Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India
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Isah T. Stress and defense responses in plant secondary metabolites production. Biol Res 2019; 52:39. [PMID: 31358053 PMCID: PMC6661828 DOI: 10.1186/s40659-019-0246-3] [Citation(s) in RCA: 401] [Impact Index Per Article: 80.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 07/23/2019] [Indexed: 01/25/2023] Open
Abstract
In the growth condition(s) of plants, numerous secondary metabolites (SMs) are produced by them to serve variety of cellular functions essential for physiological processes, and recent increasing evidences have implicated stress and defense response signaling in their production. The type and concentration(s) of secondary molecule(s) produced by a plant are determined by the species, genotype, physiology, developmental stage and environmental factors during growth. This suggests the physiological adaptive responses employed by various plant taxonomic groups in coping with the stress and defensive stimuli. The past recent decades had witnessed renewed interest to study abiotic factors that influence secondary metabolism during in vitro and in vivo growth of plants. Application of molecular biology tools and techniques are facilitating understanding the signaling processes and pathways involved in the SMs production at subcellular, cellular, organ and whole plant systems during in vivo and in vitro growth, with application in metabolic engineering of biosynthetic pathways intermediates.
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Affiliation(s)
- Tasiu Isah
- Department of Botany, School of Chemical and Life Sciences, Hamdard University, New Delhi, 110 062, India.
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Biotechnology of the medicinal plant Rhazya stricta: a little investigated member of the Apocynaceae family. Biotechnol Lett 2017; 39:829-840. [DOI: 10.1007/s10529-017-2320-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/07/2017] [Indexed: 10/20/2022]
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Malik S. Enhancement of Medicinally Important Bioactive Compounds in Hairy Root Cultures of Glycyrrhiza, Rauwolfia, and Solanum Through In Vitro Stress Application. PRODUCTION OF PLANT DERIVED NATURAL COMPOUNDS THROUGH HAIRY ROOT CULTURE 2017. [PMCID: PMC7121597 DOI: 10.1007/978-3-319-69769-7_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Enhancement of secondary metabolites through elicitation in hairy root culture is a very effective method which is broadly used to simulate the stress responses in plants. Elicitors are compounds that induce plants to produce secondary metabolites at elevated levels and reduce the processing time required to achieve high product concentrations. Hairy root cultures are considered as an excellent alternative for the supply of pharmaceutically important secondary metabolites/bioactives, due to their inherent genetic and biochemical stability. Plant-based secondary metabolites are well accepted in India as well as other countries to cure even the serious medical problems. In this chapter, three medicinally important plants are discussed in which stress-based elicitation of secondary metabolites has been achieved in hairy root cultures. These three plants contain important secondary metabolites in their different parts. Glycyrrhizin found in Glycyrrhiza glabra plant is used as antiulcer, immunomodulatory, antiallergic, and anti-inflammatory. Glycyrrhizin is also effective against HIV and severe acute respiratory syndrome (SARS)-like viruses. In Solanum plant, steroidal glycoalkaloids contain pharmaceutically important secondary metabolites. Solasodine, a major alkaloid of Solanum plant, is used as a contraceptive in different parts of the world. Ajmaline and ajmalicine are important root-specific indole alkaloids of Rauwolfia serpentina. Ajmalicine is useful in circulatory disorders, while ajmaline is principally known for its antiarrhythmic and antihypertensive activities. The main objective of this chapter is to provide knowledge in these plants regarding elicitation-based enhancement of valuable secondary metabolites in the form of research studies conducted till date (as per author’s knowledge).
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Affiliation(s)
- Sonia Malik
- Biological and Health Sciences Center, Federal University of Maranhao, Sao Luis, Maranhão Brazil
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Akhgari A, Yrjönen T, Laakso I, Vuorela H, Oksman-Caldentey KM, Rischer H. Establishment of transgenic Rhazya stricta hairy roots to modulate terpenoid indole alkaloid production. PLANT CELL REPORTS 2015; 34:1939-1952. [PMID: 26245531 DOI: 10.1007/s00299-015-1841-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 06/09/2015] [Accepted: 07/10/2015] [Indexed: 06/04/2023]
Abstract
Transgenic hairy roots of R. stricta were developed for investigation of alkaloid accumulations. The contents of five identified alkaloids, including serpentine as a new compound, increased compared to non-transformed roots. Rhazya stricta Decne. is a rich source of pharmacologically active terpenoid indole alkaloids (TIAs). In order to study TIA production and enable metabolic engineering, we established hairy root cultures of R. stricta by co-cultivating cotyledon, hypocotyl, leaf, and shoot explants with wild-type Agrobacterium rhizogenes strain LBA 9402 and A. rhizogenes carrying the pK2WG7-gusA binary vector. Hairy roots initiated from the leaf explants 2 to 8 weeks. Transformation was confirmed by polymerase chain reaction and in case of GUS clones with GUS staining assay. Transformation efficiency was 74 and 83% for wild-type and GUS hairy root clones, respectively. Alkaloid accumulation was monitored by HPLC, and identification was achieved by UPLC-MS analysis. The influence of light (16 h photoperiod versus total darkness) and media composition (modified Gamborg B5 medium versus Woody Plant Medium) on the production of TIAs were investigated. Compared to non-transformed roots, wild-type hairy roots accumulated significantly higher amounts of five alkaloids. GUS hairy roots contained higher amounts two of alkaloids compared to non-transformed roots. Light conditions had a marked effect on the accumulation of five alkaloids whereas the composition of media only affected the accumulation of two alkaloids. By successfully establishing R. stricta hairy root clones, the potential of transgenic hairy root systems in modulating TIA production was confirmed.
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Affiliation(s)
- Amir Akhgari
- VTT Technical Research Centre of Finland Ltd, Tietotie 2, P.O. Box 1000, 02044, Espoo, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014, Helsinki, Finland
| | - Teijo Yrjönen
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014, Helsinki, Finland
| | - Into Laakso
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014, Helsinki, Finland
| | - Heikki Vuorela
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014, Helsinki, Finland
| | | | - Heiko Rischer
- VTT Technical Research Centre of Finland Ltd, Tietotie 2, P.O. Box 1000, 02044, Espoo, Finland.
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Pandey P, Kaur R, Singh S, Chattopadhyay SK, Srivastava SK, Banerjee S. Long-term stability in biomass and production of terpene indole alkaloids by hairy root culture of Rauvolfia serpentina and cost approximation to endorse commercial realism. Biotechnol Lett 2015; 36:1523-8. [PMID: 24658738 DOI: 10.1007/s10529-014-1495-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 01/10/2014] [Indexed: 11/30/2022]
Abstract
The effect of 6 years of cultivation and use of table-sugar (TS) on the biomass/terpene alkaloid productivities and rol gene expression were studied in a hairy root (HR) clone of Rauvolfia serpentina. The media cost could be reduced >94 % by replacing sucrose (SUC) with TS—an unexplored avenue for HR cultivation. The overall productivities increased over long-term cultivation with sugar proving superior to SUC for biomass (24.4 ± 2.11 g/l DW after 40 days to 17.31 % higher) and reserpine (0.094 ± 0.008 % DW after 60 days to 193.8 % more) production. The latter however revealed comparatively better yields concerning ajmaline (0.507 ± 0.048 % DW after 60 days to 61.98 % higher) and yohimbine (0.628 ± 0.062 % DW after 60 days to 38.32 % higher), respectively. PCR amplification of rol genes confirmed long-term expression stability.
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Ranjan R, Katuri SR, Khanna R. Discrete Modeling of Growth of Hairy Roots in a Mist Bioreactor. Chem Eng Technol 2015. [DOI: 10.1002/ceat.201400402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Tian L. Using Hairy Roots for Production of Valuable Plant Secondary Metabolites. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2015; 149:275-324. [PMID: 25583225 DOI: 10.1007/10_2014_298] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Plants synthesize a wide variety of natural products, which are traditionally termed secondary metabolites and, more recently, coined specialized metabolites. While these chemical compounds are employed by plants for interactions with their environment, humans have long since explored and exploited plant secondary metabolites for medicinal and practical uses. Due to the tissue-specific and low-abundance accumulation of these metabolites, alternative means of production in systems other than intact plants are sought after. To this end, hairy root culture presents an excellent platform for producing valuable secondary metabolites. This chapter will focus on several major groups of secondary metabolites that are manufactured by hairy roots established from different plant species. Additionally, the methods for preservations of hairy roots will also be reviewed.
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Affiliation(s)
- Li Tian
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA,
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Mehrotra S, Goel MK, Srivastava V, Rahman LU. Hairy root biotechnology of Rauwolfia serpentina: a potent approach for the production of pharmaceutically important terpenoid indole alkaloids. Biotechnol Lett 2014; 37:253-63. [DOI: 10.1007/s10529-014-1695-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Accepted: 10/03/2014] [Indexed: 12/19/2022]
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Thiruvengadam M, Praveen N, Kim EH, Kim SH, Chung IM. Production of anthraquinones, phenolic compounds and biological activities from hairy root cultures of Polygonum multiflorum Thunb. PROTOPLASMA 2014; 251:555-66. [PMID: 24091894 DOI: 10.1007/s00709-013-0554-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Accepted: 09/19/2013] [Indexed: 05/04/2023]
Abstract
Polygonum multiflorum Thunb. is a highly important medicinal plant producing anthraquinones (emodin and physcion) and phenolic compounds which has pharmaceutical use. In vitro seedling explants such as roots, internodals, nodals and leaves were inoculated with A. rhizogenes strain KCTC 2703. Transformed roots were induced from internodals and leaf explants. Six transgenic clones of hairy roots were established and confirmed by polymerase chain reaction (PCR) and reverse transcription-PCR (RT-PCR) using rolC specific primers. Hairy roots cultured using MS liquid medium supplemented with 30 g/l sucrose showed highest accumulation of biomass (99.05 g/l FW [fresh weight] and 10.95 g/l DW [dry weight]) and highest production of anthraquinones content (emodin 211.32 μg/g DW and physcion 353.23 μg/g DW) were observed at 20 days. Nearly 9.5-fold increment of biomass was evident in suspension cultures at 20 days of culture and hairy root biomass produced in suspension cultures possessed 3.7- and 3.5-fold higher content of emodin and physcion, respectively, when compared with the untransformed control roots. MS basal liquid medium was superior for the growth of hairy roots and production of anthraquinones compared with other culture media evaluated (SH, B5 and N6), with MS-basal liquid medium supplemented with 30 g/l sucrose was optimal for secondary metabolite production. A total of 23 polyphenolic compounds were identified and quantified from P. multiflorum untransformed and hairy roots, which includes hydroxybenzoic acids, hydroxycinnamic acids, flavonols and other groups of phenolic compounds. The ultra-performance liquid chromatography (UPLC) analysis of the phenolic compounds profile revealed that pyrogallol, hesperidin, naringenin and formononetin were higher in hairy roots compared to untransformed roots. The total phenolics, flavonoids content, antioxidant and antimicrobial activity was high in hairy roots compared to untransformed roots. This is the first report for the production of anthraquinones (emodin and physcion), phenolic compounds and biological activities from hairy root cultures of P. multiflorum.
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Affiliation(s)
- Muthu Thiruvengadam
- Department of Applied Bioscience, College of Life and Environmental Science, Konkuk University, Seoul, 143 701, South Korea
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Swain SS, Rout KK, Chand PK. Production of triterpenoid anti-cancer compound taraxerol in Agrobacterium-transformed root cultures of butterfly pea (Clitoria ternatea L.). Appl Biochem Biotechnol 2012; 168:487-503. [PMID: 22843061 DOI: 10.1007/s12010-012-9791-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Accepted: 07/03/2012] [Indexed: 10/28/2022]
Abstract
Independent transformed root somaclones (rhizoclones) of butterfly pea (Clitoria ternatea L.) were established using explant co-cultivation with Agrobacterium rhizogenes. Rhizoclones capable of sustained growth were maintained under low illumination in auxin-free agar-solidified MS medium through subcultures at periodic intervals. Integration of T(L)-DNA rolB gene in the transformed rhizoclone genome was verified by Southern blot hybridization, and the transcript expression of T(R)-DNA ags and man2 genes was ascertained by reverse transcription polymerase chain reaction analysis. The major compound isolated and purified from the transformed root extracts was identified as the pentacyclic triterpenoid compound taraxerol using IR, (1)H-NMR, and (13)C-NMR spectroscopy. The taraxerol yield in cultured hairy roots, as quantified by HPTLC analysis, was up to 4-fold on dry weight basis compared to that in natural roots. Scanning of bands from cultured transformed roots and natural roots gave super-imposable spectra with standard taraxerol, suggesting a remarkable homology in composition. To date, this is the first report claiming production of the cancer therapeutic phytochemical taraxerol in genetically transformed root cultures as a viable alternative to in vivo roots of naturally occurring plant species.
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Affiliation(s)
- Swasti S Swain
- Plant Cell and Tissue Culture Facility, Post-Graduate Department of Botany, Utkal University, Vani Vihar, Bhubaneswar 751 004 Odisha, India
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Liu W, Chen R, Chen M, Zhang H, Peng M, Yang C, Ming X, Lan X, Liao Z. Tryptophan decarboxylase plays an important role in ajmalicine biosynthesis in Rauvolfia verticillata. PLANTA 2012; 236:239-50. [PMID: 22331368 DOI: 10.1007/s00425-012-1608-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Accepted: 01/31/2012] [Indexed: 05/10/2023]
Abstract
Tryptophan decarboxylase (TDC) converts tryptophan into tryptamine that is the indole moiety of ajmalicine. The full-length cDNA of Rauvolfia verticillata (RvTDC) was 1,772 bps that contained a 1,500-bp ORF encoding a 499-amino-acid polypeptide. Recombinant 55.5 kDa RvTDC converted tryptophan into tryptamine. The K (m) of RvTDC for tryptophan was 2.89 mM, higher than those reported in other TIAs-producing plants. It demonstrated that RvTDC had lower affinity to tryptophan than other plant TDCs. The K (m) of RvTDC was also much higher than that of strictosidine synthase and strictosidine glucosidase in Rauvolfia. This suggested that TDC might be the committed-step enzyme involved in ajmalicine biosynthesis in R. verticillata. The expression of RvTDC was slightly upregulated by MeJA; the five MEP pathway genes and SGD showed no positive response to MeJA; and STR was sharply downregulated by MeJA. MeJA-treated hairy roots produced higher level of ajmalicine (0.270 mg g(-1) DW) than the EtOH control (0.183 mg g(-1) DW). Highest RvTDC expression level was detected in hairy root, about respectively 11, 19, 65, and 109-fold higher than in bark, young leaf, old leaf, and root. Highest ajmalicine content was also found in hairy root (0.249 mg g(-1) DW) followed by in bark (0.161 mg g(-1) DW) and young leaf (0.130 mg g(-1) DW), and least in root (0.014 mg g(-1) DW). Generally, the expression level of RvTDC was positively consistent with the accumulation of ajmalicine. Therefore, it could be deduced that TDC might be the key enzyme involved in ajmalicine biosynthesis in Rauvolfia.
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Affiliation(s)
- Wanhong Liu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Laboratory of Natural Products and Metabolic Engineering, Chongqing Engineering and Technology Research Center for Sweetpotato, School of Life Sciences, Southwest University, Chongqing, 400715, China
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Uddin MR, Park WT, Kim YK, Pyon JY, Park SU. Effects of auxins on sorgoleone accumulation and genes for sorgoleone biosynthesis in sorghum roots. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:12948-12953. [PMID: 22087851 DOI: 10.1021/jf2024402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Sorgoleone is a major component of the hydrophobic root exudate of Sorghum bicolor and is of particular interest to plant chemical ecology as well as agriculture. Sorgoleone was evaluated in this study to observe the expression levels of genes involved in its biosynthesis in response to auxins. Sorgoleone content varied widely according to the duration of application and the concentrations of the auxins. When the application time was increased, the sorgoleone content increased accordingly for all concentrations of IBA (1, 3, and 5 mg/L) and at 1 mg/L for both IAA and NAA. In this study, five different sorgoleone biosynthetic genes were observed, namely DES2, DES3, ARS1, ARS2, and OMT3, which are upregulated in response to IAA, IBA, and NAA. Transcript accumulation was apparent for all genes, but particularly for DES2, which increased up to 475-fold and 180-fold following 72 h exposure to NAA and IBA, respectively, compared to no treatment.
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Affiliation(s)
- Md Romij Uddin
- Department of Crop Science, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, Korea
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Chandra S. Natural plant genetic engineer Agrobacterium rhizogenes: role of T-DNA in plant secondary metabolism. Biotechnol Lett 2011; 34:407-15. [DOI: 10.1007/s10529-011-0785-3] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 10/18/2011] [Indexed: 11/24/2022]
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Hong B, Cheng W, Wu J, Zhao C. Screening and Identification of Many of the Compounds Present in Rauvolfia verticillata by Use of High-Pressure LC and Quadrupole TOF MS. Chromatographia 2010. [DOI: 10.1365/s10337-010-1760-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Enhancing Sorgoleone Levels in Grain Sorghum Root Exudates. J Chem Ecol 2010; 36:914-22. [DOI: 10.1007/s10886-010-9829-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2010] [Accepted: 06/25/2010] [Indexed: 10/19/2022]
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Thimmaraju R, Venkatachalam L, Bhagyalakshmi N. Morphometric and biochemical characterization of red beet (Beta vulgaris L.) hairy roots obtained after single and double transformations. PLANT CELL REPORTS 2008; 27:1039-1052. [PMID: 18327591 DOI: 10.1007/s00299-008-0527-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2007] [Revised: 02/17/2008] [Accepted: 02/20/2008] [Indexed: 05/26/2023]
Abstract
It is known that T-DNA of Agrobacterium rhizogenes affects processes of plant development and activates the synthesis of secondary metabolites in transformed plant cells. In the present investigation, we provide evidence that different strains of A. rhizogenes significantly affect morphometric, morphological and functional characteristics of hairy roots of red beet (Beta vulgaris L.). Infection with four strains of A. rhizogenes (A4, A 2/83, A 20/83 and LMG-150) resulted in ten clones of hairy roots, which were named accordingly as A4(1), A4(2), A4(3), A 2/83(1), A 2/83(2), A 2/83(3), A 20/83(1), A 20/83(2), A 20/83(3) and LMG-150. Their growth characteristics, pigment content, levels of endogenous auxin and T-DNA copy number showed significant differences probably due to the physiological status of the host cell rather than the T-DNA copy number. Although A 2/83 showed highest hairy root induction capacity, the best hairy root clone was obtained with strain LMG-150 that produced highest biomass and pigments. In this root clone, the enzyme peroxidase was found involved in altering the endogenous auxin pool. When root clone LMG-150 was re-transformed to insert additional individual rol genes, two double transformed clones were obtained, one for rolABC and the other for rolC gene where the former produced higher biomass and betalaine than the latter. Despite the established fact that rol genes of T-DNA influence endogenous phytohormones, no direct correlation among the single transformants and the double transformants was found. This is the first report, in our knowledge, where a hairy root clone has been used to obtain double transformants.
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Affiliation(s)
- R Thimmaraju
- Plant Cell Biotechnology Department, Central Food Technological Research Institute, Mysore 570 020, India
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Analysis of hairy root culture ofRauvolfia serpentina using direct analysis in real time mass spectrometric technique. Biomed Chromatogr 2008; 22:596-600. [DOI: 10.1002/bmc.974] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gómez-Galera S, Pelacho AM, Gené A, Capell T, Christou P. The genetic manipulation of medicinal and aromatic plants. PLANT CELL REPORTS 2007; 26:1689-715. [PMID: 17609957 DOI: 10.1007/s00299-007-0384-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2007] [Revised: 05/04/2007] [Accepted: 05/11/2007] [Indexed: 05/16/2023]
Abstract
Medicinal and aromatic plants have always been intimately linked with human health and culture. Plant-derived medicines constitute a substantial component of present day human healthcare systems in industrialized as well as developing countries. They are products of plant secondary metabolism and are involved in many other aspects of a plant's interaction with its immediate environment. The genetic manipulation of plants together with the establishment of in vitro plant regeneration systems facilitates efforts to engineer secondary product metabolic pathways. Advances in the cloning of genes involved in relevant pathways, the development of high throughput screening systems for chemical and biological activity, genomics tools and resources, and the recognition of a higher order of regulation of secondary plant metabolism operating at the whole plant level facilitate strategies for the effective manipulation of secondary products in plants. Here, we discuss advances in engineering metabolic pathways for specific classes of compounds in medicinal and aromatic plants and we identify remaining constraints and future prospects in the field. In particular we focus on indole, tropane, nicotine, isoquinoline alcaloids, monoterpenoids such as menthol and related compounds, diterpenoids such as taxol, sequiterpenoids such as artemisinin and aromatic amino acids.
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Affiliation(s)
- Sonia Gómez-Galera
- Departament de Producció Vegetal i Ciència Forestal, Universitat de Lleida, Av. Alcalde Rovira Roure, 191, 25198, Lleida, Spain
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Georgiev MI, Pavlov AI, Bley T. Hairy root type plant in vitro systems as sources of bioactive substances. Appl Microbiol Biotechnol 2007; 74:1175-85. [PMID: 17294182 DOI: 10.1007/s00253-007-0856-5] [Citation(s) in RCA: 159] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Revised: 01/15/2007] [Accepted: 01/21/2007] [Indexed: 10/23/2022]
Abstract
"Hairy root" systems, obtained by transforming plant tissues with the "natural genetic engineer" Agrobacterium rhizogenes, have been known for more than three decades. To date, hairy root cultures have been obtained from more than 100 plant species, including several endangered medicinal plants, affording opportunities to produce important phytochemicals and proteins in eco-friendly conditions. Diverse strategies can be applied to improve the yields of desired metabolites and to produce recombinant proteins. Furthermore, recent advances in bioreactor design and construction allow hairy root-based technologies to be scaled up while maintaining their biosynthetic potential. This review highlights recent progress in the field and outlines future prospects for exploiting the potential utility of hairy root cultures as "chemical factories" for producing bioactive substances.
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Affiliation(s)
- Milen I Georgiev
- Institute of Food Technology and Bioprocess Engineering, Dresden University of Technology, 01069 Dresden, Germany.
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Guillon S, Trémouillaux-Guiller J, Pati PK, Rideau M, Gantet P. Harnessing the potential of hairy roots: dawn of a new era. Trends Biotechnol 2006; 24:403-9. [PMID: 16870285 DOI: 10.1016/j.tibtech.2006.07.002] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Revised: 05/23/2006] [Accepted: 07/12/2006] [Indexed: 11/21/2022]
Abstract
In the past two decades, hairy root research for the production of important secondary metabolites has received a lot of attention. The addition of knowledge to overcome the limiting culture parameters of the regulation of the metabolic pathway by specific molecules and the development of novel tools for metabolic engineering now offer new possibilities to improve the hairy root technique for the production of metabolites. Furthermore, engineering hairy roots for the production of animal proteins of therapeutic interest in confined and controlled in vitro conditions is seen as one of the exciting spin-offs of the technology. Recent progress made in the scale-up of the hairy root cultures has paved the way for industrial exploitation of this system. This review highlights some of the significant progress made in the past three years and discusses the potential implications of that research.
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Affiliation(s)
- Stéphanie Guillon
- UPRES EA 2106 Biomolécules et Biotechnologies Végétales, Université François Rabelais, UFR des Sciences Pharmaceutiques Parc de Grandmont, 37200 Tours, France
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Guillon S, Trémouillaux-Guiller J, Pati PK, Rideau M, Gantet P. Hairy root research: recent scenario and exciting prospects. CURRENT OPINION IN PLANT BIOLOGY 2006; 9:341-6. [PMID: 16616871 DOI: 10.1016/j.pbi.2006.03.008] [Citation(s) in RCA: 139] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2005] [Accepted: 03/22/2006] [Indexed: 05/02/2023]
Abstract
High stability of the production of secondary metabolites is an interesting characteristic of hairy root cultures. For 25 years, hairy roots have been investigated as a biological system for the production of valuable compounds from medicinal plants. A better understanding of the molecular mechanism of hairy root development, which is based on the transfer of Agrobacterium rhizogenes T-DNA into the plant genome, has facilitated its increasing use in metabolic engineering. Hairy roots can also produce recombinant proteins from transgenic roots, and thereby hold immense potential for the pharmaceutical industry. In addition, hairy roots offer promise for phytoremediation because of their abundant neoplastic root proliferation. Recent progress in the scaling-up of hairy root cultures is making this system an attractive tool for industrial processes.
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Affiliation(s)
- Stéphanie Guillon
- UPRES EA 2106 'Biomolécules et Biotechnologies Végétales', Université François Rabelais, UFR des Sciences Pharmaceutiques, Parc de Grandmont, 37200 Tours, France
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Pasquali G, Porto DD, Fett-Neto AG. Metabolic engineering of cell cultures versus whole plant complexity in production of bioactive monoterpene indole alkaloids: Recent progress related to old dilemma. J Biosci Bioeng 2006; 101:287-96. [PMID: 16716935 DOI: 10.1263/jbb.101.287] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2005] [Accepted: 11/12/2005] [Indexed: 11/17/2022]
Abstract
Monoterpene indole alkaloids (MIAs) are a large class of plant alkaloids with significant pharmacological interest. The sustained production of MIAs at high yields is an important goal in biotechnology. Intensive effort has been expended toward the isolation, cloning, characterization and transgenic modulation of genes involved in MIA biosynthesis and in the control of the expression of these biosynthesis-related genes. At the same time, considerable progress has been made in the detailed description of the subcellular-, cellular-, tissue- and organ-specific expressions of portions of the biosynthetic pathways leading to the production of MIAs, revealing a complex picture of the transport of biosynthetic intermediates among membrane compartments, cells and tissues. The identification of the particular environmental and ontogenetic requirements for maximum alkaloid yield in MIA-producing plants has been useful in improving the supply of bioactive molecules. The search for new bioactive MIAs, particularly in tropical and subtropical regions, is continuously increasing the arsenal for therapeutic, industrially and agriculturally useful molecules. In this review we focus on recent progress in the production of MIAs in transgenic cell cultures and organs (with emphasis on Catharanthus roseus and Rauvolfia serpentina alkaloids), advances in the understanding of in planta spatial-temporal expression of MIA metabolic pathways, and on the identification of factors capable of modulating bioactive alkaloid accumulation in nontransgenic differentiated cultures and plants (with emphasis on new MIAs from Psychotria species). The combined use of metabolic engineering and physiological modulation in transgenic and wild-type plants, although not fully exploited to date, is likely to provide the sustainable and rational supply of bioactive MIAs needed for human well being.
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Affiliation(s)
- Giancarlo Pasquali
- Programa de Pós-graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Pr. 43.431, P.O. Box 15.005, CEP 91.501-970, Porto Alegre, RS, Brazil
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Kanho H, Yaoya S, Kawahara N, Nakane T, Takase Y, Masuda K, Kuroyanagi M. Biotransformation of benzaldehyde-type and acetophenone-type derivatives by Pharbitis nil hairy roots. Chem Pharm Bull (Tokyo) 2005; 53:361-5. [PMID: 15802832 DOI: 10.1248/cpb.53.361] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The glucosylation of some coumarin and flavone derivatives on incubation with the hairy roots of morning glory (Pharbitis nil) was previously reported. We further studied the biotransformation of benzaldehyde- and acetophenone-type derivatives. Vanillin and isovanillin were reduced to alcoholic derivatives and glucosylated at the phenolic and the alcoholic hydroxyl groups. In the case of 3,4-dihydroxybenzaldehyde, the formyl group was reduced and the 3-hydroxyl or 4-hydroxyl groups were glucosylated to give monoglucosides. The 3-hydroxyl group was predominantly glucosylated to the 4-hydroxyl group. 4-beta-D-Glucopyranosyloxy-3-methoxybenzylalcohol was obtained in low yield. In time-course experiments with vanillin, it was found that the high-level reduction of the formyl group and glucosylation of the phenolic hydroxyl group occurred, and finally 4-O-beta-D-glucopyranosylvanillylalcohol was obtained as the main product. In the case of 3,4-dimethoxybenzaldehyde, 3,4,5-trimethoxybenzaldehyde, and salicylaldehyde, the formyl groups were reduced, and then the hydroxyl groups at the benyl position were glucosylated to give alcoholic glucosides in relatively high yields. In 4-hydroxy-3-methoxyacetophenone, the 4-hydroxyl group was glucosylated and two dimerized glucosides, biphenyl and biphenylether types, were obtained in low yields. In acetophenone, 1-beta-D-glucopyranosyloxy-1-phenylethane and 2-beta-D-glucopyranosyloxyacetophenone were obtained. As mentioned above P. nil hairy roots showed various biotransformative activities including glucosylation of phenolic and benzylic hydroxyl groups, reduction of the formyl group near the benzene ring, and phenol oxidation dimerization. The glucosylation reaction was especially interesting for the production of valuable glucosides.
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Affiliation(s)
- Hideki Kanho
- School of Bioresources, Hiroshima Prefectural University, Hiroshima, Japan
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