Photometabolism of Glycollate by Euglena Gracilis
نویسندگان
چکیده
منابع مشابه
The intracellular localization of glycollate oxidoreductase in Euglena gracilis.
1. Lowering of the concentration of carbon dioxide in air available to phototrophically growing Euglena cultures from 5% to the normal value (0.03%) resulted in an increased specific activity of glycollate oxidoreductase. 2. The effects of chloramphenicol and cycloheximide suggested that this increase in activity was due to enzyme synthesis de novo on cytoplasmic ribosomes. 3. The K(m) for glyc...
متن کاملOccurrence and operation of the glycollate--glyoxylate shuttle in mitochondria of Euglena gracilis Z.
Both glyoxylate reductase (NADP+) and glycollate dehydrogenase were located exclusively in mitochondria in Euglena gracilis and constitute the glycollate--glyoxylate shuttle, whose existence in higher plants was thought doubtful, owing to different subcellular locations of the two enzymes. Disrupted Euglena mitochondria showed a glycollate-dependent NADPH oxidation, indicating actual operation ...
متن کاملSynthesis of oleic acid by Euglena gracilis.
1. CHA, S., MOURAD, N., CHA, C.-J. M., AND PARKE, R. E., JR., Fedemtion Proc., 24, 362 (1965). 2. MITCHELL, R. A., BUTLER, L. G., AND BOYER, P. D., B&hem. and Biophys. Research Communs., 16, 545, (1964). 3. KREIL, G., AND BOYER, P. D., Biochem. and Biophys. Research Commune., 16, 551 (1964). 4. CHA, S., AND PARKS, R. E., JR., Federation Proc., 22, 361 (1963); J. Btil. Chem., 239, 1961 (1964). 5...
متن کاملThe Mitochondrion of Euglena gracilis.
In the presence of oxygen, Euglena gracilis mitochondria function much like mammalian mitochondria. Under anaerobiosis, E. gracilis mitochondria perform a malonyl-CoA independent synthesis of fatty acids leading to accumulation of wax esters, which serve as the sink for electrons stemming from glycolytic ATP synthesis and pyruvate oxidation. Some components (enzymes and cofactors) of Euglena's ...
متن کاملLipid Metabolism of Euglena Gracilis.
In both plants and animals pathways exist for the conversion of oleic acid to polyenoic acids (1, 2), but these pathways lead to different end products in the two kingdoms. In green plants the double bond system is extended toward the methyl end of the molecule to form linoleic and linolenic acids (9,12, lBoctadecatrienoic acid) (1,3,4). The ciliated protozoa, the amoebae, and some other animal...
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ژورنال
عنوان ژورنال: Australian Journal of Biological Sciences
سال: 1971
ISSN: 0004-9417
DOI: 10.1071/bi9710023