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