In continuation of Volumes 8 and 9 (1989) on in vitromanipulation of plant protoplasts, this new volume dealswith the regeneration of plants from protoplasts and genetictransformation in various species of Agrostis, Arabidopsis,Atropa, Brassica, Catharanthus, Datura, Cucumis, Daucus,Digitalis, Duboisia, Eustoma, Festuca, Helianthus, Hordeum,Kalanchoe, Linum, Lobelia, Lolium, Lotus, Lycium,Lycopersicum,Mentha, Nicotiana, Pelargonium, Pisum, Pyrus,Salvia, Scopolia, and Solanum.These studies reflect the farreaching implications of protoplast technologyin geneticengineering of plants. They are of special interest toresearchers in the field of plant tissue culture, molecularbiology, genetic engineering, and plant breeding.