Front Cover; International Review of Cytology: A Survey of Cell Biology; Copyright Page; CONTENTS; Contributors; Chapter 1. Cell and Molecular Biology of Rhizobium- Plant Interactions; I. Introduction; II. Stages of Nodule Development; III. Rhizobial Nodulation Genes; IV. Transcriptional Regulation of Nodulation Genes; V. Bacterial Nod Signals; VI. Plant Responses; VII. Host-Specific Interactions Controlled by Multiple and Specific Signal Exchanges: A Model; VIII. Conclusion; References; Chapter 2. Cellular Resistance to Cancer Chemotherapy; I. Introduction; II. Drug Resistance

III. AntimetabolitesIV. DNA Repair in Resistance to Cisplatin and Alkylating Anticancer Drugs; V. Glutathione S-Transferase and Alkylation Resistance; VI. Concluding Remarks; References; Chapter 3. Cellular and Molecular Effects of Thymic Epithelial Cells on Thymocytes during Differentiation and Maturation; I . Introduction; II . Close Adhesion between Thymocytes and Thymic Epithelial Cells; III . Thymocyte Differentiation and Maturation; IV . Thymocyte Subset, the Target for Thymus Hormonal Products; V . Regulators of Thymic Epithelial Cell Function; VI . Conclusion; References

Chapter 4. Actin-Binding Proteins in Cell MotilityI . Introduction; II . Cytoplasmic Streaming and Actin Cytoskeleton in Physarum Plasmodium; III. Actin and Myosin; IV. Actin-Binding Proteins; V. Mechanism of Cytoplasm Contraction; VI . Concluding Remarks; References; Chapter 5. The Cell Biology of Nematocysts; I. Introduction; II . Chemistry of Nematocysts; Ill . Mechanism of Nematocyst Discharge; IV . Regulation of Discharge; V . Concluding Remarks; References; Chapter 6. The Impact of Altered Gravity on Aspects of Cell Biology; I . Introduction; II . Altered Gravity Research on the Cell

III. The Search for Underlying PrinciplesIV. Approaches to Gravity Manipulation; V. Concluding Remarks; References; Index