Claim · model-written summary
Enhanced UV-B had minimal effects on photosynthesis.
- Taxon
- Populus trichocarpa
Populus trichocarpae1 - Treatment
- Enhanced UV-B(BE) radiatione6
- Outcome
- photosynthesise6
- Direction
- no_changeinferrede6
- Comparator
- ambient (1X)e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ramets of Populus trichocarpa Torr. & Gray (black cottonwood) were subjected to near zero (0X), ambient (1X) or twice ambient (2X) doses of biologically effective UV-B radiation (UV-B(BE))”
e6“Enhanced UV-B(BE) radiation had minimal effects on photosynthesis, growth, leaf area and biomass distribution”
Title
J. M. Warren; J. H. Bassman; S. Eigenbrode Tree Physiology 2002. doi:10.1093/treephys/22.15-16.1137
Other claims from this paper (7)
- Intervention effect Enhanced UV-B increased foliar nitrogen and chlorophyll concentrations in young leaves in the greenhouse study.
- Intervention effect Enhanced UV-B slightly decreased tannins in young leaves in the greenhouse study.
- Intervention effect Enhanced UV-B increased methanol-extractable foliar phenolics in both greenhouse and field studies.
- Intervention effect Adult C. scripta chose 2X-treated tissue almost twice as often as 1X-treated tissue in feeding preference trials; the difference was not significant.
- Intervention effect Larvae of C. scripta grown on 2X-treated leaves had a significantly reduced consumption efficiency compared with larvae on 1X-treated leaves in the field study.
- Intervention effect Enhanced UV-B had minimal effects on growth, leaf area and biomass distribution.
- Intervention effect In the field study, enhanced UV-B had no significant effect on these leaf parameters (foliar nitrogen, chlorophylls and tannins).