Abstract
The rising demand for picrosides commercially and over-exploitation of Picrorhiza kurroa from natural habitat has to initiate alternative strategies for sustainable production of metabolites. In the present research, wild leaf explant of P. kurroa was used to produce friable callus under different culture condition, i.e., dark and light with two temperature variants (15 °C and 25 °C). Afterward, callus cell lines were screened based on growth biomass and metabolites content accumulation. The results revealed, maximum callus growth index along with antioxidant potential (IC50–40.88 μg/mL) and total phenol content (41.35 μg/mg) were observed under dark 25 °C. However, under light 15 °C, highest accumulation of picroside II (0.58 μg/mg), cinnamic acid (0.15 μg/mg), p-hydroxy acetophenone (0.30 μg/mg), total flavonoids (77.30 μg/mg), nitrogen (7.06%), carbohydrates (18.03%), and protein (44.12%) were detected. Major reported metabolite in callus was picroside I (1.63 μg/mg) under dark 15 °C. For the first time, picroside III content (range 0.15–0.56 μg/mg) was also detected and quantified in leaf-derived calli. Expression profiling of picroside biosynthetic pathway genes showed a positive correlation with the observed metabolites. Furthermore, an optimized protocol of metabolites enriched callus biomass could be used as potential strategy for sustainable production of picrosides at commercial scale.
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25 July 2022
A Correction to this paper has been published: https://doi.org/10.1007/s12010-021-03638-1
Abbreviations
- AA:
-
Ascorbic acid
- ACT:
-
Anthocyanin 5-aromatic acyltransferase
- AEAC:
-
Ascorbic acid equivalent antioxidant capacity
- ANOVA:
-
Analysis of variance
- ARP:
-
Antiradical power
- CA:
-
Cinnamic acid
- CAF:
-
Caffeic acid
- C4H:
-
Cinnamate-4-hydroxylase
- CAM:
-
Caffeic acid 3-o-methyltransferase
- CM:
-
Chorismate mutase
- CAR:
-
Carbohydrates
- DAHPS:
-
3-Deoxy-D-arabinoheptulosonate 7-phosphate synthase
- DPPH:
-
2,2-Diphenyl-1-picrylhydrazyl
- EC50 :
-
Half maximal effective concentration
- GI:
-
Growth index
- G10H:
-
Geraniol 10-hydroxylase
- GIFW:
-
Growth index fresh weight
- GIDW:
-
Growth index dry weight
- IBA:
-
Indole-3-butyric acid
- IC50 :
-
Half maximal inhibitory concentration
- ISPD:
-
2-C-methyl D-erythritol 4-phosphate cytidylyltransferase
- MDS:
-
Multidimensional scaling
- MS:
-
Murashige and Skoog medium
- N:
-
Nitrogen
- P. kurroa :
-
Picrorhiza kurroa
- P-I:
-
Picroside I
- P-II:
-
Picroside II
- P-III:
-
Picroside III
- PCA:
-
Principal component analysis
- PHA:
-
p-Hydroxy acetophenone
- PMK:
-
Phosphomevalonate kinase
- PPM:
-
Plant preservative mixture
- PR:
-
Protein
- RT-qPCR:
-
Quantitative real-time polymerase chain reaction
- TDZ:
-
Thidiazuron
- TFC:
-
Total flavonoid content
- TPC:
-
Total phenolic content
- UHPLC-PDA:
-
Ultra-high-performance liquid chromatography-photometric diode array
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Acknowledgments
The authors are thankful to the Director, Dr. Sanjay Kumar, CSIR-IHBT, for providing necessary facilities. The authors are also thankful to Ms. Sampa das for help in conducting primary metabolite analysis. CSIR-IHBT publication number for this manuscript is 4535.
Funding
This study is financially supported by the Council of Scientific and Industrial Research (CSIR), Government of India, under the project “Biotechnological interventions for sustainable bio-economy generation through characterization, conservation, prospection, and utilization of Himalayan bioresources (MLP-0201) and Phytopharma mission project (HCP-0010).” MP is supported by the CSIR, New Delhi, through Junior Research Fellowship and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India for Ph.D. enrolment.
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Conceptualization: Mahinder Partap and Ashish R. Warghat; methodology: Mahinder Partap and Ashish R. Warghat; data analysis and investigation: Mahinder Partap, Pankaj Kumar, Pawan Kumar, Ashrita, Dinesh Kumar, and Ashish R. Warghat; writing-original draft preparation: Mahinder Partap and Ashish R. Warghat; writing-review and editing: Mahinder Partap, Ashish R. Warghat, Pankaj Kumar, and Dinesh Kumar.
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Partap, M., Kumar, P., Ashrita et al. Growth Kinetics, Metabolites Production and Expression Profiling of Picrosides Biosynthetic Pathway Genes in Friable Callus Culture of Picrorhiza kurroa Royle ex Benth. Appl Biochem Biotechnol 192, 1298–1317 (2020). https://doi.org/10.1007/s12010-020-03391-x
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DOI: https://doi.org/10.1007/s12010-020-03391-x