Ontogeny of B cells in the chicken. II. Changing patterns of cytoplasmic IgM expression and of modulation requirements for surface IgM by anti-mu antibodies.

Age Factors Animals Antibodies, Anti-Idiotypic B-Lymphocytes/immunology,metabolism Bone Marrow/immunology Bone Marrow Cells Bursa of Fabricius/embryology,immunology Chick Embryo/immunology Chickens Cytochalasin B/pharmacology Cytoplasm/immunology Female Gestational Age Immunoglobulin Heavy Chains Immunoglobulin M Immunoglobulin mu-Chains Pronase/pharmacology Receptors, Antigen, B-Cell Vitelline Membrane/immunology

Antibodies, Anti-Idiotypic Immunoglobulin Heavy Chains Immunoglobulin M Immunoglobulin mu-Chains Receptors, Antigen, B-Cell Cytochalasin B Pronase