Abstract
Adventitious shoot regeneration was compared among leaf, stem and petal explants of carnation (Dianthus caryophyllus L.) cv. Scania on MS medium containing different concentrations of 6-benzyladenine (BA) and α-naphthaleneacetic acid (NAA). High frequency regeneration was obtained only from petal explants on the media containing 5 to 10 μM BA with or without 5 μM NAA. Among the cytokinins tested, N-2-chloro-4-pyridyl-N′-phenylurea and N-1,2,3-thiadiazol-5-yl-N′-N′-phenylurea were more effective than BA, kinetin, N6-2-isopentenyl adenine and zeatin on regeneration from petal explants. Although, high frequency shoot regeneration was obtained from all petal explants harvested from various developmental stages of buds, a significant decrease in regeneration capacity was observed in the explants obtained from fully-opened flowers. High frequency shoot regeneration was also obtained from the petal explants of cvs. Coral. Lena, Nora and White Sim, and an interspecific cultivar Eolo using the method developed in this study.
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Abbreviations
- NAA:
-
α-naphthaleneacetic acid
- BA:
-
6-benzyladenine
- GA3 :
-
gibberellic acid
- 2iP:
-
N6-2-isopentenyl adenine
- KT-30:
-
N-2-chloro-4-pyridyl-N′-phenylurea (also called 4PU)
- TDZ:
-
N-1,2,3-thiadiazol-5-yl-N′-phenylurea (also called thidiazuron)
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Nakano, M., Hoshino, Y. & Mii, M. Adventitious shoot regeneration from cultured petal explants of carnation. Plant Cell Tiss Organ Cult 36, 15–19 (1994). https://doi.org/10.1007/BF00048310
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DOI: https://doi.org/10.1007/BF00048310