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Clonal propagation of Zephyranthes grandiflora using bulbs as explants

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Biologia Plantarum

Abstract

Zephyr lily (Zephyranthes grandiflora), an important ornamental plant has been micropropagated in vitro after controlling microbial contamination by a pretreatment with 0.2 % Bavistin and 0.1 % Pantomycin for 4 h before final sterilization with 0.1 % mercuric chloride. In 67 % of the sterile cultures, 11 shoots on average were regenerated directly from basal half of bulb scales in Murashige and Skoog (MS) medium containing 3 % sucrose and 2 mg dm−3 benzylaminopurine (BAP). Shoots emerged in bunches on a basal achlorophyllous bulbous part. Combination of 2 mg dm−3 BAP with 1 mg dm−3 gibberellic acid (GA3) enhanced shoot growth. Stout roots (maximum of 5–6 per shoot) were developed in presence of 1 mg dm−3 indole-3-butyric acid (IBA). Micro-bulbs showed potential of regeneration and could be used as secondary explants. The morphologically identical plants derived by in vitro propagation were genetically identical as shown by PCR based ISSR marker analysis of genomic DNA.

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Abbreviations

2,4-D:

2,4-dichlorophenoxyacetic acid

BAP:

6-benzylaminopurine

dNTPs:

deoxyribonucleotide triphosphate

EtBr:

ethidium bromide

GA3:

gibberellic acid-3

IAA:

indole-3-acetic acid

IBA:

indole-3-butyric acid

ISSR:

inter simple sequence repeat

MS:

Murashige and Skoog

NAA:

1-naphthalene acetic acid

PCR:

polymerase chain reaction

TBE:

tris borate EDTA

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Acknowledgement

Authors are thankful to Mr. Jadav Ghosh for technical assistance, and Director of Bose Institute for providing necessary facilities.

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Correspondence to M. Gangopadhyay.

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Gangopadhyay, M., Chakraborty, D., Dewanjee, S. et al. Clonal propagation of Zephyranthes grandiflora using bulbs as explants. Biol Plant 54, 793–797 (2010). https://doi.org/10.1007/s10535-010-0145-5

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  • DOI: https://doi.org/10.1007/s10535-010-0145-5

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