Influence of the Nutrient Medium on the Recovery of Dividing Cells from Tobacco Protoplasts

Abstract
Systematic tests resulted in a nutrient solution containing the following, in milligrams per liter, for the culture of protoplasts isolated from Nicotiana tabacum L. callus cells: Murashige and Skoog salts (T. Murashige and F. Skoog, 1962); sucrose, 15,000; mannitol, 110,000; .alpha.-naphthaleneacetic acid, 0.6; kinetin, 0-0.1; thiamine.cntdot.HCl, 10; pyridoxine.cntdot.HCl, 10; nicotinic acid, 5; myo-inositol, 100; and glycine, 2. In this medium, cell wall regeneration was observed in 85%, and resumption of cell division among 35% of the protoplast isolates.