Claim · model-written summary
UV-B stress increased minimal fluorescence of dark-adapted state (F0) and F0/Fm in Prunus dulcis relative to the UV-Bc control
- Taxon
- Prunus dulcis
Prunus dulcist0 - Treatment
- UV-B stresse1
- Outcome
- minimal fluorescence of dark-adapted state (F0) and F0/Fme1
- Direction
- increasee1
- Comparator
- UV-Bce0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet almond [Prunus dulcis (Mill) D. Webb]”
e0“two-year-old seedlings of the species were submitted to four levels of UV-B stress, namely 0 (UV-Bc), 4.42 (UV-B1), 7.32 (UV-B2) and 9.36 (UV-B3) kJ m-2 d-1”
e1“UV-B stress promoted an increase in minimal fluorescence of dark-adapted state (F0) and F0/Fm, and a decrease in variable fluorescence (Fv, Fv/Fm, Fv/F0 and F0/Fm) due to its adverse effects on photosystem II (PSII) activity”
Title
A. Ranjbarfordoei; R. Samson; P. Van Damme Photosynthetica 2011. doi:10.1007/s11099-011-0017-z
Other claims from this paper (7)
- Intervention effect UV-B stress decreased variable fluorescence (Fv, Fv/Fm, Fv/F0 and F0/Fm) in Prunus dulcis, reflecting PSII damage
- Intervention effect UV-B stress did not significantly change maximal fluorescence of dark-adapted state (Fm) in Prunus dulcis
- Intervention effect Enhanced UV-B radiation significantly inhibited net photosynthetic rate in Prunus dulcis at UV-B2 and UV-B3 levels
- Intervention effect Enhanced UV-B radiation reduced stomatal conductance (g s) and transpiration rate (E) in Prunus dulcis
- Intervention effect Increased UV-B stress reduced contents of Chl a, Chl b and total Chl in Prunus dulcis
- Observation Fv/F0, Chl a content and net photosynthetic rate were the most sensitive indicators of UV-B stress in Prunus dulcis
- Intervention effect Adverse UV-B effects became significant at the highest tested radiation dose of 9.36 kJ m-2 d-1 in Prunus dulcis