Claim · model-written summary
Below 35 degrees at 1800 ft-c, CO2 evolution was greater in light than darkness.
- Taxon
- sunflower
Helianthus annuust0 - Outcome
- rate of CO(2) evolution in lighte0
- Direction
- greatere0
- Qualifier
- 1800 ft-c and below 35 degreese0
- Comparator
- darknesse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 1800 ft-c and below 35 degrees the rate of CO(2) evolution in light was greater than in darkness, but above 35 degrees it became lower than in darkness”
t0“plant leaves (sunflower, soybean, watermelon, eggplant, and jackbean)”
Title
Effects of Temperature on Photosynthesis and CO2 Evolution in Light and Darkness by Green Leaves
Choy-Sin Hew; G. Krotkov; David T. Canvin PLANT PHYSIOLOGY 1969. doi:10.1104/pp.44.5.671
Other claims from this paper (12)
- Observation Light and dark CO2 evolution in leaves differed in temperature response.
- Association CO2 evolution in light rose from 17 to 35 degrees and then declined.
- Association CO2 evolution in darkness increased continuously up to 40 degrees.
- Association Light intensity affected CO2 evolution in light.
- Observation Above 35 degrees at 1800 ft-c, CO2 evolution was lower in light than darkness.
- Observation The Q(10) for light CO2 evolution was lower than for dark CO2 evolution.
- Association Apparent photosynthesis decreased as temperature rose from 20 to 40 degrees.
- Association Apparent photosynthesis was affected by light intensity.
- Association Apparent photosynthesis was affected by oxygen concentration.
- Mechanism Between 20 and 30 degrees at 21% oxygen, increased light CO2 evolution primarily explained the decrease in apparent photosynthesis in dicot leaves.
- Association Corn had little temperature effect on apparent photosynthesis.
- Mechanism The differing temperature responses support light and dark CO2 evolution as two distinct processes.