Claim · model-written summary
Lowering CO2 in untreated leaves decreased starch accumulation in proportion to net carbon fixation.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Treatment
- lowering CO2concentratione0
- Outcome
- starch accumulatione0
- Direction
- decreasee0
- Comparator
- untreated leavese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreasing netcarbon fixation inuntreated leaves bylowering CO2concentration caused starch accumulation todecrease, butonlyinthesameproportion asnetcarbon fixation”
t0“sugar beet”
Title
Glyphosate Inhibits Photosynthesis andAllocation ofCarbon to
Donaldr . Geiger; A. Tucci 1986
Other claims from this paper (11)
- Intervention effect Glyphosate lowered stomatal conductance in sugar beet exporting leaves.
- Intervention effect Glyphosate lowered carbon fixation in sugar beet exporting leaves.
- Intervention effect Glyphosate nearly completely inhibited allocation of fixed carbon to foliar starch.
- Intervention effect Shikimate level increased 50 fold in treated sugar beet leaves.
- Association Increased shikimate carbon accumulation accounted for only 4% of decreased starch accumulation rate.
- Observation No other major daytime differences in labeled amino acids or compounds were found between treated and control leaves.
- Mechanism Less labeled carbon accumulated in treated leaves because fixation decreased.
- Intervention effect The proportion of newly fixed carbon allocated to sucrose increased after glyphosate treatment.
- Observation Carbon export was maintained at the level of control leaves.
- Intervention effect Restoring net carbon exchange fully restored starch accumulation.
- Intervention effect Restoring net carbon exchange prevented a decline in export during the following dark period.