An embryogenic cell suspension culture of Picea glauca (White spruce).

A cell suspension culture of Picea glauca (White spruce) which continuously produces somatic embryos has been established. Embryogenic callus derived from cultured zygotic embryos was used to initiate the culture. Numerous embryos at various early stages of development were recognized; they exhibited a meristematic embryonic region and suspensor consisting of elongate, vacuolated cells. The culture also contained clumps of meristematic cells and large irregular - shaped cells. The culture could be readily re-established on solid medium.