Enhanced Production of β-Caryophyllene by Farnesyl Diphosphate Precursor-Treated Callus and Hairy Root Cultures of Artemisia vulgaris L

• Published in: Frontiers in plant science Vol. 12; p. 634178
• Main Authors: Balasubramani, Sundararajan, Ranjitha Kumari, B D, Moola, Anil Kumar, Sathish, D, Prem Kumar, G, Srimurali, S, Babu Rajendran, R
• Format: Journal Article
• Language: English
• Published: Switzerland Frontiers Media S.A 30-03-2021
• Subjects: Artemisia vulgaris L; essential oil; farnesyl diphosphate; gas chromatography–mass spectrometry; Plant Science; precursor treatment; Artemisia vulgaris L; essential oil; precursor treatment; farnesyl diphosphate; gas chromatography–mass spectrometry
• ISSN: 1664-462X; 1664-462X
• DOI: 10.3389/fpls.2021.634178

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
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
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
strains (A
and R
) were evaluated for HR induction. The biomass of HRs induced using half-strength MS + B
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 A
and R
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.