Authors
P Jha, CB Yadav, V Anjaiah, V Bhat
Publication date
2009/4
Journal
In Vitro Cellular & Developmental Biology-Plant
Volume
45
Pages
145-154
Publisher
Springer-Verlag
Description
An efficient in vitro plant regeneration protocol through somatic embryogenesis and direct shoot organogenesis has been developed for pearl millet (Pennisetum glaucum). Efficient plant regeneration is a prerequisite for a complete genetic transformation protocol. Shoot tips, immature inflorescences, and seeds of two genotypes (843B and 7042-DMR) of pearl millet formed callus when cultured on Murashige and Skoog (MS) medium supplemented with varying levels of 2,4-dichlorophenoxyacetic acid (2,4-D; 4.5, 9, 13.5, and 18 μM). The level of 2,4-D, the type of explant, and the genotype significantly effected callus induction. Calli from each of the three explant types developed somatic embryos on MS medium containing 2.22 μM 6-benzyladenine (BA) and either 1.13, 2.25, or 4.5 μM of 2,4-D. Somatic embryos developed from all three explants and generated shoots on MS medium containing high levels of …
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