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Adventitious rhizogenesis in Basilicum polystachyon (L.) Moench callus and HPLC analysis of phenolic acids

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Abstract

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This is the successful report of adventitious rhizogenesis from leaf segment of in vitro grown Basilicum polystachyon (L.) Moench in MS medium supplemented with NAA and BAP. The presence of phenolic acids, viz., rosmarinic acid and p-coumaric acid in adventitious root extracts of rhizogenic callus is also a significant observation.

Abstract

Rhizogenic callus was induced directly from the leaf segment explants of in vitro grown Basilicum polystachyon (L) Moench. Light green and compact callus with adventitious roots was induced on MS medium supplemented with 1 mg L−1 NAA and 1 mg L−1 BAP. MS medium with addition of 1.0 mg L−1 2,4-D and 1.0 mg L−1 BAP induced white and compact callus. Maximum callus induction efficiency (98%) was obtained in MS medium supplemented with NAA and BAP. The highest numbers of adventitious roots (24 ± 0.35) per callus were regenerated on MS medium supplemented with 1 mg L−1 of NAA and 1 mg L−1 of BAP. The adventitious root origination was studied with stereo-microscope and field emission scanning electron microscope. The induced rhizogenic callus was also a good source of phenolic acids. The presence of phenolic acids such as rosmarinic acid (10 µg/ml) and p-coumaric acid (14 µg/ml) in adventitious roots was determined by RP-HPLC analysis.

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Abbreviations

2, 4-D:

2,4-Dichlorophenoxyacetic acid

ANOVA:

Analysis of variance

BAP:

6-Benzylaminopurine

FESEM:

Field emission scanning electron microscope

MS:

Murashige and Skoog

NAA:

1-Naphthaleneacetic acid

PGR:

Plant growth regulator

PTFE:

Polytetrafluoroethylene

RP-HPLC:

Reversed-phase high-performance liquid chromatography

SE:

Standard error

TLC:

Thin-layer chromatography

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Acknowledgements

We sincerely acknowledge the Department of Biotechnology, The University of Burdwan, Burdwan 713104, WB, India for giving infrastructural facilities. The authors also acknowledge DST PURSE Phase-II, New Delhi, Government of India for providing instrumental facilities. S.D. is thankful to the Government of West Bengal, India for financial assistance through the state-funded fellowship. We must convey our sincere thanks to Mr. Kaushik Sarkar, Technical Assistant, Grade-I, Department of Biotechnology, The University of Burdwan, Burdwan 713104, WB, India for HPLC analysis.

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The authors have made the following declarations regarding their contributions: SD and IC conceived the design of the experiments. SD and to some extent KWS monitored the research work. SD collected and analyzed sample data. SD contributed mainly to writing the manuscript in its final form. All the authors read and approved the final manuscript. This is a part of SD’s Ph.D. thesis work.

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Correspondence to Indrani Chandra.

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The authors declare that they have no conflict of interest.

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Communicated by M. Lambardi.

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Das, S., Sultana, K.W. & Chandra, I. Adventitious rhizogenesis in Basilicum polystachyon (L.) Moench callus and HPLC analysis of phenolic acids. Acta Physiol Plant 43, 146 (2021). https://doi.org/10.1007/s11738-021-03317-y

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  • DOI: https://doi.org/10.1007/s11738-021-03317-y

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