Isolation and characterization of mutants affected in lipid metabolism of Chlamydomonas reinhardtii.
Two mutants affected in lipid metabolism of Chlamydomonas reinhardtii were isolated by treating cells with ultraviolet light. Both mutants showed high chlorophyll fluorescent yields, as compared with parents, and were designated as hf-2 and hf-9 (for high fluorescence). hf-2 was shown to be defective in the synthesis of a chloroplast-specific lipid, sulfoquinovosyl diacylglycerol. hf-9 was shown to be defective in desaturation at the omega 6 position of fatty acids of monogalactosyl diacylglycerol, digalactosyl diacylglycerol, sulfoquinovosyl diacylglycerol and phosphatidylglycerol. The mutants exhibited alterations in photosynthetic activity and chloroplast ultrastructure.
Sato
N
N
Department of Biology, College of Arts and Sciences, University of Tokyo, Japan.
Tsuzuki
M
M
Matsuda
Y
Y
Ehara
T
T
Osafune
T
T
Kawaguchi
A
A
D000818:Animals; D016825:Chlamydomonas reinhardtii / Q000378:metabolism*; D002736:Chloroplasts / Q000648:ultrastructure; D005227:Fatty Acids / Q000378:metabolism; D005453:Fluorescence; D006017:Glycolipids / Q000378:metabolism; D050356:Lipid Metabolism; D009154:Mutation; D010788:Photosynthesis
D005227:Fatty Acids; D006017:Glycolipids; C013694:sulfoquinovosyl diglyceride