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Enhancement of Shoot Organogenesis of Potato Cultivars ‘Kufri Pukhraj’ and ‘Kufri Chipsona 1’ by β-lactam Antibiotics

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Abstract

The effect of β-lactam antibiotics viz. cefotaxime, carbenicillin and cephalexin was evaluated on shoot organogenesis of potato cultivars ‘Kufri Pukhraj’ and ‘Kufri Chipsona 1’. Leaf and internodal explants from 21-day-old microshoots were cultured on pre-standardized medium for shoot organogenesis (basal Murashige and Skoog (MS) medium containing 10 μM AgNO3+10 μM 6-benzyladenine (BA)+15 μM gibberellin A(GA3)), which was further supplemented with different concentrations (0–500 mg/L) of various β-lactam antibiotics. At lower concentrations, these antibiotics promoted shoot organogenesis in both cultivars, except cephalexin that totally inhibited shoot organogenesis in cv. ‘Kufri Chipsona 1’. Cefotaxime (100 mg/L) induced shoot organogenesis in maximum number of explants with maximum number of shoots per explant. Among explants, shoot promotion effect was significantly higher from internodal explants as compared with leaf explants. Cefotaxime at all concentrations (100–500 mg/L) increased shoot organogenesis of all explants and cultivars. The regenerated shoots tested clonally uniform among themselves and also to that of the mother plant by random amplified polymorphic DNA (RAPD) and inter-simple sequence repeats (ISSR) markers.

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Acknowledgements

The author thankfully acknowledges TIFAC-CORE, Thapar Institute of Engineering and Technology for providing facilities and necessary help to carry out this research work.

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The authors thank the Council of Scientific and Industrial Research, Extramural Research Division, New Delhi, for funding this study through the project (sanction no. 38(1465)/18/EMR-II).

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AK designed experiments, and SG conducted experiments, analysed data, and compiled the first draft of manuscript. AK finalized manuscript and submitted to journal.

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Correspondence to Anil Kumar.

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Guleria, S., Kumar, A. Enhancement of Shoot Organogenesis of Potato Cultivars ‘Kufri Pukhraj’ and ‘Kufri Chipsona 1’ by β-lactam Antibiotics. Potato Res. 65, 137–151 (2022). https://doi.org/10.1007/s11540-021-09513-0

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  • DOI: https://doi.org/10.1007/s11540-021-09513-0

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