Claim · model-written summary
Root available carbohydrate increased steadily without MCPA.
- Taxon
- Solanum lycopersicum (Tomato)
Solanum lycopersicumt0 - Organ / stage
- rootse0
- Treatment
- ‘no-MCPA’e0
- Outcome
- available carbohydratee0
- Direction
- increasee0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the roots of the ‘no-MCPA’ plants and also of the ‘MCPA-water’ plants showed a steady increase in available carbohydrate”
t0“Solanum lycopersicum (Tomato)”
Title
A. RHODES Journal of Experimental Botany 1952. doi:10.1093/jxb/3.2.129
Other claims from this paper (19)
- Method / resource Residual dry weight revealed features obscured by conventional reporting bases.
- Intervention effect MCPA greatly inhibited tomato growth measured as residual dry weight soon after spraying, with and without nutrients.
- Intervention effect MCPA greatly diminished tomato net assimilation rate.
- Intervention effect MCPA appeared to diminish total nitrogen uptake to a smaller extent.
- Intervention effect MCPA appeared to diminish P2O5 uptake to a smaller extent.
- Mechanism The authors inferred a larger share of carbohydrate was used for amino-acid and protein synthesis under MCPA.
- Intervention effect MCPA did not show evidence of depleting whole-plant available carbohydrate.
- Observation Available carbohydrate rose steadily in every treatment throughout the experiment.
- Intervention effect MCPA greatly reduced the rate of increase in available carbohydrate.
- Observation Root available carbohydrate increased steadily under MCPA with water only.
- Observation Under MCPA with nutrients, root available carbohydrate rose from 8 to about 10 mg per plant over two days.
- Observation Under MCPA with nutrients, root available carbohydrate then fell to about 6 mg and stayed low.
- Mechanism The authors suggested MCPA phytotoxicity with nutrients may arise from depletion of root available carbohydrate.
- Mechanism Reduced transport from tops was proposed as one contributor to root carbohydrate depletion.
- Mechanism Relatively greater carbohydrate use was proposed as another contributor to depletion.
- Recommendation The authors recommended MCPA when root carbohydrate reserves are minimal.
- Intervention effect MCPA prevented net starch synthesis.
- Intervention effect MCPA still permitted appreciable net sucrose formation.
- Intervention effect MCPA appeared not to affect uptake of potassium, calcium or magnesium.