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Effect of Temperature on the Contents of the Two Energy‐Reserve Substances, Paramylon and Wax Esters, in Euglena gracilis 1
Author(s) -
KAWABATA AKIKO,
MIYATAKE KAZUTAKA,
KITAOKA SHOZABURO
Publication year - 1982
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1982.tb05425.x
Subject(s) - euglena gracilis , wax , euglena , wax ester , chemistry , epicuticular wax , incubation , strain (injury) , chromatography , biochemistry , biology , chloroplast , gene , anatomy
. When a streptomycin‐bleached mutant of Euglena gracilis strain Z was cultured in the dark at 33, 26, or 15°C, the content of paramylon was higher at lower growing temperature while that of wax esters was higher at higher temperature. Transfer of the cells grown at 33°C–15°C decreased the wax ester content while increasing the paramylon content; transfer in the reverse direction caused reverse changes. On incubation with labeled acetate, the cells grown at 33°C showed more distribution of radioactivity in wax esters than the cells grown at lower temperatures. Apparently the two energy‐reserve substances have different physiological functions.