title: The nucleus of Euglena. II. Ultrastructural modifications of the nucleus of B12-deprived Euglena gracilis Z.
mesh_terms: D002466:Cell Nucleolus / Q000648:ultrastructure; D002467:Cell Nucleus / Q000648:ultrastructure; D002875:Chromosomes / Q000648:ultrastructure; D004247:DNA / Q000032:analysis / Q000378:metabolism; D005056:Euglena gracilis / Q000254:growth & development / Q000648:ultrastructure*; D010940:Plant Proteins / Q000378:metabolism; D012313:RNA / Q000378:metabolism; D014805:Vitamin B 12 / Q000494:pharmacology*
chemical_list: D010940:Plant Proteins; D012313:RNA; D004247:DNA; D014805:Vitamin B 12