The date palm has a pivotal role in the oasis ecosystem and it is an important food crop and commercial commodity. The cloning or protoplast fusion can increase breeding and multiplication of many varieties. Present investigation has been undertaken with the aim to develop methods for obtaining plantlets by somatic embryogenesis either from vegetative or female floral explants, as well as by th...

Plant primary cell walls are composite structures surrounding the protoplast and containing pectins, hemicelluloses, cellulose polysaccharides, as well proteins. Their composition changed during evolution of green lineage from algae to terrestrial plants, i.e., an aquatic a environment. The constraints life in environments have generated new requirements for organisms, necessitating adaptations...

Weibull (1953) demonstrated that the intact protoplasts are liberated from cells of Bacillus megaterium after digestion of the cell wall by the enzyme lysozyme, and that these structures persist and exhibit many of the activities of the whole cell provided they are maintained in solutions of appropriate osmotic pressure. Since that time free protoplasts have been obtained from many other gram-p...

Properties of Crystalline Lysozymes............................................................ 83 Non-enzymic Reactions of Lysozyme ........................................................... 84 Agglutination of Bacterial Cells............................................................. 84 Formation of Complexes with Acidic Substances.............................................. 84 Susceptib...