An organism that has no nutritional requirements beyond those of the wild type and which can grow on minimal medium.
                                                            
                                                     
                        
                                                
                        
                        
                            A microorganism strain that requires the same nutrients as the wild-type strain.
                                                            
                                                     
                        
                                                
                        
                        
                            The parent from which an auxotrophic mutant is derived (Lecture: The Bacterial Cell: Structure, Function, Growth, and Gene Regulation II, 1/29/02)
                                                            
                                                     
                        
                                                
                                                     
                        
                        
                            (pro´ tow trofe´) [Gr. protos: first + trophein: to nourish] • The nutritional wild type, or reference form, of an organism. Any deviant form that requires growth nutrients not required by the prototrophic form is said to be a nutritional mutant, or auxotroph.
                                                            
                                                     
                        
                                                
                        
                        
                            an organism that is capable of growing on a defined minimal medium; often this is usually regarded as the wildtype strain
                                                            
                                                     
                        
                                                
                        
                        
                            A strain of organisms that will proliferate on minimal medium ( compare auxotroph).
                                                            
                                                     
                        
                                                
                        
                        
                            A strain of microorganism whose nutritional requirements do not exceed those of the corresponding wild-type strain. ()