In continuation of Volumes 8, 9, and 22 on in vitro manipulation of plant protplasts, this new volume deals with the regeneration of plants from protoplasts and genetic transformation in various species of Actinidia, Amoracia, Beta, Brassica, Cicer, Citrus, Cucumis, Duboisia, Fragaria, Glycine, Ipomoea, Lactuca, Lotus, Lycopersicon, Manihot, Medicago, Nicotiana, Petunia, Phaseolus, Pisum, Prunus, Psophocarpus, Saccharum, Solanum, Sorghum, Stylosanthes, and Vitis. These studies reflect the far-reaching implications of protoplast technology in genetic engineering of plants. They are of special interest to researchers in the field of plant tissue culture, molecular biology, genetic engineering, and plant breeding.