Abstract
Glycine max (L.) Merr. (soybean) andGlycine soja Sieb. and Zucc. cell suspension cultures were grown and used as inoculum sources for growing callus on agar-solidified nutrient media. Concentrations and chemical forms of the growth regulators in liquid and solidified media were altered in an attempt to achieve in vitro plant regeneration. Numerous embryoids, particularly ofG. soja, were produced on basal nutrient media supplemented with 100 ppm casein hydrolysate, 0.1 μM abscisic acid, 2.25 μM 2,4-dichlorophenoxyacetic acid, and 15 μM adenine or 0.46 μM kinetin. Often the roots of the embryoids elongated. This was enhanced in the presence of an inhibitor of gibberellin synthesis (1 to 20 μM Amo 1618). Callus recovered from aG. soja suspension culture produced one shoot structure when grown on a solid medium containing 0.2 μM Amo 1618 and 80 μM glutathione. The shoot structure consisted of two distinct buds, one producing two leaves. The shoot did not develop into a plant. Although regeneration of soybean plants was not achieved, these observations suggest that it may be achievable.
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The investigations reported in this paper (no. 81-3-100) were performed in connection with a project of the Kentucky Agriculture Experimental Station and the paper is published with the approval of the Director.
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Phillips, G.C., Collins, G.B. Induction and development of somatic embryos from cell suspension cultures of soybean. Plant Cell Tiss Organ Cult 1, 123–129 (1981). https://doi.org/10.1007/BF02318911
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DOI: https://doi.org/10.1007/BF02318911