title: PRESSURE-INDUCED COLOR MUTATION OF EUGLENA GRACILIS.
abstract: Photosynthetic cultures of Euglena gracilis Z which were illuminated during growth were more resistant to the lethal effect of high hydrostatic pressures than nonphotosynthetic cultures grown in the dark. A high percentage of mutants permanently lacking chlorophyll and with altered carotenoids was obtained after subjecting cultures to high pressure. A minimum pressure of 500 atmospheres was critical for color mutation and morphological change. The highest effective pressure used was 1000 atmospheres.
mesh_terms: D001274:Atmospheric Pressure; D002338:Carotenoids; D002734:Chlorophyll; D003116:Color; D003624:Darkness; D005055:Euglena; D005056:Euglena gracilis; D008027:Light; D009154:Mutation; D010788:Photosynthesis; D011312:Pressure; D012106:Research
chemical_list: D002734:Chlorophyll; D002338:Carotenoids
keywords: ATMOSPHERIC PRESSURE; CAROTENOIDS; COLOR; DARKNESS; EUGLENA; EXPERIMENTAL LAB STUDY; LIGHT; MUTATION; PHOTOSYNTHESIS