Claim · model-written summary
Glyoxylate inhibited photorespiration in tobacco leaf discs.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- glyoxylatee0
- Outcome
- photorespiratione0
- Direction
- inhibitede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of glyoxylate to tobacco (Nicotiana tabacum) leaf discs inhibited glycolate synthesis and photorespiration and increased net photosynthetic (14)CO(2) fixation”
Title
David J. Oliver PLANT PHYSIOLOGY 1978. doi:10.1104/pp.62.6.938
Other claims from this paper (10)
- Intervention effect Glyoxylate inhibited glycolate synthesis in tobacco leaf discs.
- Intervention effect Glyoxylate increased net photosynthetic carbon dioxide fixation.
- Intervention effect Lowering oxygen from 21 to 3% increased control-disc photosynthesis from 59.1 to 94.7 micromoles per gram fresh weight per hour, a 60% increase.
- Intervention effect With 15 millimolar glyoxylate, lowering oxygen increased photosynthesis from 82.0 to 99.7 micromoles per gram fresh weight per hour, a 22% increase.
- Intervention effect Glyoxylate decreased oxygen sensitivity of photosynthesis.
- Observation Tobacco leaf discs metabolized added glyoxylate at about 1.35 micromoles per gram fresh weight per hour.
- Association Glyoxylate metabolism rate did not depend on atmospheric oxygen concentration.
- Observation The glyoxylate metabolism rate was about 10% of the glyoxylate-induced increase in carbon dioxide fixation on a molar carbon basis.
- Intervention effect Ten millimolar glyoxylate had no effect on the isolated carboxylase/oxygenase activity.
- Mechanism The authors conclude that cellular metabolites can regulate the Warburg effect.