Claim · model-written summary
Significant ozone effects generally occurred only in older leaves under low fertilization.
- Taxon
- Betula pendula
Betula pendulat0 - Organ / stage
- older leavese0
- Treatment
- ozonee0
- Outcome
- effects of ozonee0
- Qualifier
- in most casese0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant effects of ozone were in most cases found only in the older leaves of the plants with low fertilization (LF)”
t0“Betula pendula”
Title
Effect of fertilization on ozone‐induced changes in the metabolism of birch (Betula pendula) leaves
W. LANDOLT; M. S. GÜNTHARDT‐GOERG; I. PFENNINGER; et al. New Phytologist 1997. doi:10.1046/j.1469-8137.1997.00843.x
Other claims from this paper (13)
- Intervention effect Fertilization strongly affected growth, enzyme activities and biochemical ozone responses.
- Intervention effect High fertilization enhanced PEPC and Rubisco activities about threefold.
- Intervention effect Ozone enhanced sucrose, glucose and fructose in older low-fertilization leaves.
- Intervention effect Ozone increased starch-granule numbers along minor veins in both fertilizer regimes.
- Mechanism Ozone effects suggest decreased or inhibited phloem loading.
- Intervention effect Ozone-exposed plants showed increased PEPC activity and malate levels.
- Intervention effect Ozone-exposed plants had enhanced malate levels.
- Mechanism Metabolic changes may reflect carbon redirection towards anaplerotic detoxification and repair, with enhanced respiration.
- Intervention effect Ozone enhanced respiration.
- Intervention effect Ozone markedly reduced the root:shoot biomass ratio under low fertilization.
- Intervention effect High-fertilization plants had no significant ozone response in root:shoot biomass ratio.
- Intervention effect Ozone decreased inositol in both fertilizer treatments.
- Observation Well-fertilized plants appear better able to cope with ozone effects on metabolism.