title: Somatic embryogenesis and plant regeneration in tissue cultures of sweet potato (Ipomea batatas Poir.).
abstract: Leaf, shoot-tip, stem, and root explants of sweet potato (Ipomea batatas Poir.) gave rise to two kinds of callus on nutrient agar medium containing 0.5 to 2.0 mg/l 2,4-D. One callus, bright- to pale-yellow, was compact and organized, while the other was dull-yellow and friable. The former callus gave rise to numerous globular and heart-shaped embryoids. When transferred onto hormone-free medium, the embryoids readily developed into a torpedo-shape before germination. The plantlets were transplanted to soil where they flowered and formed storage roots at maturity.
authors.affiliation: Vegetable Crops Department, IFAS, University of Florida, 32611, Gainesville, FL, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Liu
authors.forename: D J
authors.initials: DJ
authors.lastname: Cantliffe