Floral bullseyes and stratospheric ozone.
| Autor: | Robson TM; Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), Faculty of Biological and Environmental Science, University of Helsinki, Finland. Electronic address: matthew.robson@helsinki.fi., Bernhard GH; Biospherical Instruments Inc., San Diego, CA, USA., Bais AF; Department of Physics, Laboratory of Atmospheric Physics, Aristotle University, Thessaloniki, Greece., Seddon AWR; Department of Biological Sciences and the Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway., Barnes PW; Biological Sciences and Environmental Program, Loyola University New Orleans, New Orleans, LA, USA. |
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| Jazyk: | angličtina |
| Zdroj: | Current biology : CB [Curr Biol] 2021 Jul 26; Vol. 31 (14), pp. R885-R887. |
| DOI: | 10.1016/j.cub.2021.06.019 |
| Abstrakt: | As well as guiding pollinators to the centre of flowers, areas of the corolla that absorb UV radiation may help to protect floral reproductive parts from solar UV radiation that would otherwise be reflected onto them. In their recent article, 'Floral pigmentation has responded rapidly to global change in ozone and temperature', Koski et al. 1 compared herbarium specimens collected between 1941 and 2017 to investigate whether the size of the UV-absorbing area in the centre of flowers (called 'bullseyes', UV proportion, or UVP) has changed relative to the size of the flower over this period. The article, and a subsequent feature 2 , describe an increase in UVP of ∼2% per year across all taxa examined. However, the study's main conclusion that this trend can be partially related to changes in ozone and temperature does not withstand close examination. (Copyright © 2021 Elsevier Inc. All rights reserved.) |
| Databáze: | MEDLINE |
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