Abstract
Techniques for the regeneration of Jatropha curcas L. from various explants have been developed. Regeneration from hypocotyl, petiole and leaf explants was evaluated on a range of concentrations of zeatin, kinetin and N6 benzyladenine (BA) either singly or in combination with indole-3-butyric acid (IBA). Higher regeneration from hypocotyl and petiole explants was obtained on BA with IBA than on zeatin- or kinetin-supplemented media. Leaf discs from the third expanding leaf exhibited higher regeneration potential than those from the fourth leaf. Independent of the explant type, direct adventitious shoot bud induction was recorded highest on MS medium with 2.22 μM BA and 4.9 μM IBA. Although the same BA concentration but with reduced IBA concentration (0.49 μM) proved effective in callus mediated regeneration from hypocotyl and leaf explants, the petioles required lower concentrations of the two growth regulators (0.44 μM BA and 0.49 μM IBA). Regenerated shoots could be rooted on growth regulator-free gelled full-strength MS medium. Following simple hardening procedures, the in vitro-raised plants could be transferred to soil and grown to maturity in the field.
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Abbreviations
- BA:
-
N6 benzyladenine
- IAA:
-
indole-3-acetic acid
- IBA:
-
indole-3-butyric acid
- MS:
-
Murashige & Skoog's (1962) medium
- NAA:
-
α-naphthaleneacetic acid
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Sujatha, M., Mukta, N. Morphogenesis and plant regeneration from tissue cultures of Jatropha curcas . Plant Cell Tiss Organ Cult 44, 135–141 (1996). https://doi.org/10.1007/BF00048191
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DOI: https://doi.org/10.1007/BF00048191