International Review of Cytology presents current advances and comprehensive reviews in cell biology-both plant and animal. Articles address structure and control of gene expression, nucleocytoplasmic interactions, control of cell development and differentiation, and cell transformation and growth. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research. Contents Include * Structure of the Insect Head in Ontogeny and Phylogeny: A View from Drosophila * Functional Reconstitution of the Tonoplast Proton-ATPase from Higher Plants * The Role of Molecular Chaperones in Motochondrial Protein Import and Folding * Proteoglycans and Related Components in Plant Cells.