Abstract
Zygotic embryos from ten spring wheat (Triticum aestivum L.) genotypes were tested for embryogenic callus induction in the presence or absence of externally supplied (±)-abscisic acid (ABA) and two of its analogs, methyl abscisate and methyl epoxy-beta-ionylideneacetate. (±)-ABA and its analogs suppressed precocious germination of cultured late-stage embryos and promoted embryogenic callus induction. A significantly greater number of plants was regenerated from calli induced in the presence of ABA and ABA analogs. Early-stage embryos when cultured in the presence of (±)-ABA showed a negative response. Possible roles of ABA with respect to the expression of somatic embryogenesis are discussed.
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Dedicated to Dr. Friedrich Constabel on the occasion of his 60th birthday
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Qureshi, J.A., Kartha, K.K., Abrams, S.R. et al. Modulation of somatic embryogenesis in early and late-stage embryos of wheat (Triticum aestivum L.) under the influence of (±)-abscisic acid and its analogs. Plant Cell Tiss Organ Cult 18, 55–69 (1989). https://doi.org/10.1007/BF00033465
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DOI: https://doi.org/10.1007/BF00033465