Claim · model-written summary
Nitrate depressed apoplastic ferric reduction.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- Nitratee0
- Outcome
- Fe III reductione0
- Direction
- depressede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate in the bathing solution increased the apoplastic pH and hence depressed the Fe III reduction”
t0“sunflower”
Title
Apoplastic pH and FeIIIreduction in young sunflower (Helianthus annuus) roots
Harald Kosegarten; Bernd Hoffmann; Evan Rroco; et al. Physiologia Plantarum 2004. doi:10.1111/j.1399-3054.2004.00377.x
Other claims from this paper (6)
- Observation Apoplastic ferric reduction was most rapid at pH 4.9.
- Observation No apoplastic ferric reduction was observed above pH 5.3.
- Intervention effect Nitrate increased apoplastic pH.
- Intervention effect Ammonium had the reverse effect on apoplastic pH and ferric reduction relative to nitrate.
- Intervention effect Nitrate with bicarbonate had the strongest depressing effect.
- Mechanism The authors attributed iron deficiency chlorosis on calcareous soils to inhibition of apoplastic ferric reduction and ferrous uptake.