Somatic embryogenesis of Gentiana genus III. Characterization of three-year-old embryogenic suspensions of G. pannonica originated from various seedling explants

摘要

Experiments were carried out with three-year-old embryogenic suspension culture of Gentiana pannonica Scop. The initial explant for the suspension determinated both the embryogenic character and embryo production. Cultures were initiated by culture of hypocotyl, cotyledon and root explants on MS (Murashige and Skoog 1962) medium supplemented with 1.0 mg·l−1 Kinetin and 0.5 mg·l−1 2,4-D, later transferred and maintained in liquid MS medium with 1.0 mg·l−1 Dicamba, 0.1 mg·l−1 NAA, 2.0 mg·l−1 BAP and 80.0 mg·l−1 AS. Regeneration medium included 0.0–1.0 mg·l−1 GA3+0.0−2.0 mg·l−1 Kin.+0.0−160 mg·l−1 AS.