Abstract
Using low concentrations of picloram (0.06 mg/l), embryoids were formed on the surface of leaf-derived callus of pea, Pisum sativum L. (c.v. Dippes Gelbe Victoria) upon transfer to liquid medium. After some days in culture, embryoids spontaneously separated from the calli, and developed into torpedo-shaped embryos, which were transferred to solid medium. In a second series of experiments, embryos were also formed by mutant 489C and a genetic line of Pisum arvense, which additionally exhibited embryogenesis also from epicotyl-derived callus. Some of the embryos showed root formation, but no shoot morphogenesis occurred. In a limited number of cases, an additional root was formed in the apparent shoot apical region after 2–5 days.
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Jacobsen, HJ., Kysely, W. Induction of somatic embryos in pea, Pisum sativum L. . Plant Cell Tiss Organ Cult 3, 319–324 (1984). https://doi.org/10.1007/BF00043083
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DOI: https://doi.org/10.1007/BF00043083