title: Studies on the surface coat of Paramecium aurelia. I. Ruthenium red staining and enzyme treatment.
mesh_terms: D000818:Animals; D002473:Cell Wall; D008854:Microscopy, Electron; D009439:Neuraminidase / Q000494:pharmacology; D010247:Paramecium / Q000166:cytology* / Q000187:drug effects; D011402:Pronase / Q000494:pharmacology; D012428:Ruthenium; D013194:Staining and Labeling; D014357:Trypsin / Q000494:pharmacology
chemical_list: D012428:Ruthenium; D009439:Neuraminidase; D014357:Trypsin; D011402:Pronase