Claim · model-written summary
Reducing iron significantly decreased total leaf iron and chlorophyll content in both genotypes, especially Tfer40.
- Taxon
- tomato
Solanum lycopersicume1 - Material
- Tfer40e0
- Treatment
- reduction of iron concentratione0
- Outcome
- total leaf iron and chlorophyll contente0
- Direction
- decreasee0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant decrease in total leaf iron and chlorophyll content was detected in both genotypes following reduction of iron concentration in the nutrient solution, and was particularly evident in Tfer40, which showed symptoms of chlorosis.”
e1“tomato (Lycopersicon esculentum Mill.)”
Title
Silvia Donnini; Antonella Castagna; Lucia Guidi; et al. Journal of Plant Nutrition 2003. doi:10.1081/pln-120024270
Other claims from this paper (12)
- Observation Forty µM Fe‐Na‐EDTA distinguished the tomato genotypes without killing the mutant.
- Observation At 80 µM Fe‐Na‐EDTA, the genotypes showed no phenotypic difference.
- Observation Tfer40 showed chlorosis.
- Observation Growth conditions and genotype significantly affected whole-chain photoelectron transport, with the lowest activity in Tfer40.
- Observation Tfer plants at both iron levels had increased nonphotochemical quenching.
- Observation At 40 µM iron, Tfer plants had reduced PSII photochemistry and photochemical quenching.
- Observation Actual and intrinsic PSII efficiency followed the same pattern as photochemical quenching and Fv/Fm.
- Observation Mutation and iron supply significantly affected all pigments, particularly in the mutant at 40 µM iron.
- Observation Violaxanthin was less affected than chlorophylls and other carotenoids.
- Observation Zeaxanthin increased with xanthophyll cycle activation.
- Mechanism Iron deprivation and fer mutation induced functional alterations in the photosynthetic apparatus.
- Mechanism The effect of fer mutation on photoelectron transport appeared independent of iron supply.