Claim · model-written summary
The copper concentration of young wheat leaves indicated copper status: a value of 1 μg g−1 in young leaves indicated copper deficiency.
- Taxon
- wheat
Triticum aestivume1 - Organ / stage
- young leavese1
- Outcome
- copper statuse1
- Value
- 1 μg g−1e1
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the copper concentration of young leaves gave a good indication of the copper status of wheat: a value of 1 μg g−1 in young leaves indicated copper deficiency”
Title
Copper Supply in Relation to Content and Redistribution of Copper Among Organs of the Wheat Plant*
J. F. LONERAGAN; K. SNOWBALL; A. D. ROBSON Annals of Botany 1980. doi:10.1093/oxfordjournals.aob.a085870
Other claims from this paper (11)
- Intervention effect Wheat grown without copper became severely copper deficient and produced no grain.
- Intervention effect A marginal copper supply (Cu1) overcame all deficiency symptoms and promoted growth and grain production in wheat.
- Intervention effect Eightfold increased copper supply (Cu2) did not change vegetative or grain production in wheat.
- Association Copper concentrations in stems, individual leaves and whole tops were highest when young and responded most strongly to copper supply.
- Association Leaves of Cu1 and Cu2 wheat lost copper rapidly as they aged.
- Association The first Cu0 leaves of wheat retained their copper and remained healthy for more than 7 weeks while younger leaves became severely deficient.
- Association In all treatments, loss of copper from the oldest wheat leaf paralleled senescence and the loss of nitrogen.
- Mechanism Copper appears not to move out of wheat leaves until they lose organic nitrogen compounds.
- Intervention effect In wheat under Cu2 supply, 67 per cent of the copper in vegetative organs of the primary shoot at flowering moved out during grain development.
- Intervention effect The oldest leaf of severely deficient Cu0 wheat plants had a higher copper concentration than Cu1 and Cu2 plants.
- Recommendation Old wheat organs should not be included in samples for diagnosis of copper deficiency; only young organs should be used.