title: The photoreceptor in Stentor coeruleus.
mesh_terms: D016798:Ciliophora / Q000032:analysis / Q000502:physiology* / Q000648:ultrastructure; D002942:Circular Dichroism; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D006863:Hydrogen-Ion Concentration; D008854:Microscopy, Electron; D009068:Movement; D010786:Photoreceptor Cells / Q000378:metabolism*; D010860:Pigments, Biological / Q000302:isolation & purification*; D011083:Polycyclic Compounds / Q000302:isolation & purification; D013050:Spectrometry, Fluorescence; D013057:Spectrum Analysis
chemical_list: D010860:Pigments, Biological; D011083:Polycyclic Compounds; C021252:stentorin I; C021253:stentorin II