Abstract
Embryogenesis and plant regeneration was achieved from callus cultures derived from unpollinated ovaries of Psoralea corylifolia L. Callus was initiated from unpollinated ovaries on Murashige and Skoog (MS) medium supplemented with 2.2 µM N 6-benzyladenine (BA) and various concentrations of α-naphthaleneacetic acid (NAA (2.7 to 10.7 µM) or 2,4-dichlorophenoxyacetic acid (2,4-D (2.3 to 9 µM) alone or in combination. Highly organized embryogenic callus induction, embryo development, proliferation and maturation were achieved on transfer of callus clumps to MS medium supplemented with NAA (0.27 µM) or 2,4-D (0.23 µM) alone or in combination with BA (2.2 to 8.8 µM). Addition of abscisic acid (ABA) (0.95 to 5.8 µM) to the medium enhanced average numbers of cotyledonary stage embryos, the maximum number (34.6 ± 0.7) being obtained on MS medium containing 0.27 µM NAA, 2.2 µM BA and 3.8 µM ABA. Embryos germinated on MS medium supplemented with BA (0 to 8.8 µM). MS medium containing gibberellic acid (GA3 (0.29 to 5.8 µM) enhanced embryo germination frequency, the highest frequency (66.7 %) occurring on MS medium containing 2.2 µM BA and 4.3 µM GA3. Effect of several concentrations (3.0 to 6.0 %) of sucrose or maltose was also observed on germination of embryos. MS medium enriched with maltose supported high frequency of embryo germination.
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Abbreviations
- ABA:
-
abscisic acid
- BA:
-
N 6-benzyladenine
- 2,4-D:
-
2,4-dichlorophenoxyacetic acid
- GA3 :
-
gibberellic acid
- NAA:
-
α-naphthaleneacetic acid
- MS:
-
Murashige and Skoog (1962)
- MSO:
-
MS medium without any growth regulator
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Chand, S., Sahrawat, A.K. Embryogenesis and plant regeneration from unpollinated ovary culture of Psoralea corylifolia . Biol Plant 51, 223–228 (2007). https://doi.org/10.1007/s10535-007-0045-5
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DOI: https://doi.org/10.1007/s10535-007-0045-5