Advances in morphogenesis, Volume 7 considers the significant advances in various aspects of morphogenesis. This volume is composed of eight chapters that specifically cover the concept of blastogenesis and tissue regeneration. The introductory chapter presents the evidence suggesting that the mechanism involved in the initiation of growth in compensatory hypertrophy may not be the same as that in wound healing. The succeeding two chapters deal with certain morphogenetic aspects of the crown gall problem and the development of the innervation of the tetrapod limb by combined observations of behavior with histological studies. These topics are followed by discussions on the synthesis of mRNA during embryonic development, aspects of blastogenesis, and phases of amphibian limb regeneration. The concluding chapters examine the main features of the induction of the development of kidney tubules in the metanephrogenic mesenchyme and the utilization of the developing Fucus egg as a prototype of the localization phenomenon. This book is directed primarily toward developmental biologists.

Contributors to Volume 7Growth Induced by Damage I. Introduction II. Nature of the Tissue Response to Damage III. The Specificity of the Growth-Promoting Effects of Damage IV. The Mechanism of Initiation of Damage-Induced Growth V. The Relationship of Damage-Induced Growth to Compensatory Hypertrophy, to Tumor-Induced Growth, and to Embryonic Development VI. Summary ReferencesMorphogenesis of Crown Gall I. Introduction II. The Occurrence of Crown Gall and the Characteristics of the Bacteria III. Cell Conditioning and Tumor Induction IV. Factors Affecting the Developmental Phase V. Wound and Crown Gall Tissue VI. Origin of Crown Gall VII. Summary ReferencesThe Development of Innervation in Tetrapod Limbs I. Introduction II. The Anura III. Comparison with Mammalian Development IV. Summary ReferencesRole of Messenger Ribonucleic Acid in Embryonic Development I. Introduction II. General Pattern of RNA Synthesis in Embryonic Development III. Types of Messenger RNA Synthesized during Embryonic Development IV. Release of the Genetic Information during Embryonic Development V. Stability of Messenger RNA Present at Different Stages of Development VI. Amount of Messenger RNA Present at Various Stages of Development VII. Conclusions ReferencesBlastogenesis and Morphogenesis I. Introduction II. Blastogenic Localization-Physiological Isolation III. Origin of Blastogenic Cells IV. Blastogenesis and Somatic Continuity V. Blastogenesis and Renewal of Germ Cells VI. The Organization of the Bud VII. Correlative Competition-Total Potentiality and Restricted Potentiality VIII. Double Ontogenesis or Multiple Ontogenesis IX. Blastogenesis and Epigenetic Evolution X. Conclusions General References Special ReferencesAmphibian Limb Regeneration I. Introduction II. Phases of Limb Regeneration III. The Influence of Nerves on Limb Regeneration IV. The Influence of Hormones on Limb Regeneration V. Discussion and Conclusion ReferencesDifferentiation of Kidney Mesenchyme in an Experimental Model System I. Introduction II. Formation of Kidney Tubules III. Expression of Differentiation at Different Levels IV. Discussion V. Concluding Remarks ReferencesLocalization in the Developing Fucus Egg and the General Role of Localizing Currents I. Introduction II. Factors of Polarization in the Fucus Egg III. Localizing Electrical Currents in Other Systems IV. Summary ReferencesAuthor IndexTopical Index