Cultured callus tissue of hazel (Corylus avellana L.), which has the potency of somatic embryogenesis, was used for the study of cell ultrastructure in the course of callus growth and embryoid formation. The meristematic cells of this tissue exhibit a specific organization of rough endoplasmic reticulum (RER), stacked into extensive parallel sheets. The membranes of the aggregated RER are assoc...

In the current study, a simple cryopreservation method (desiccation) was applied to Corylus avellana L. callus. Accordingly, effects of abscisic acid (ABA) concentration, pretreatment duration on MS medium containing ABA + 10% sucrose, and storage length in liquid nitrogen (LN) callus survival rate were investigated. Calli’s assessed 8 weeks after exiting from LN. Callus significantly affected ...