title: The maintenance of kappa during macronuclear reorganization in Paramecium tetraurelia.
abstract: Kappa particles were injected into stock-51 sensitives (KK) of Paramecium tetraurelia to investigate the maintenance of kappa by gene K during macronuclear reorganization. Injection into exconjugants and autogamous cells followed by macronuclear regeneration, induced by microsurgical removal of macronuclear Anlagen, resulted in maintenance of kappa particles by a considerable proportion of the clones descended from the recipient paramecia. Injection into animals that underwent normal reorganization however usually failed to yield particle-maintaining paramecia.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000502:physiology; D002999:Clone Cells / Q000502:physiology; D004261:DNA Replication; D005111:Extrachromosomal Inheritance; D010247:Paramecium / Q000166:cytology / Q000235:genetics*; D012038:Regeneration