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Dynamics of flavonol accumulation in leaf tissues under different UV-B regimes in [i]Centella asiatica[/i] (Apiaceae)

Archive ouverte | Bidel, Luc | CCSD

UMR AGAP - équipe DAAV - Diversité, adaptation et amélioration de la vigne. A cumulative effect of UV-B doses on epidermal flavonol accumulation was observed during the first week of a time course study in Centella ...

When are foliar anthocyanins useful to plants? Re-evaluation of the photoprotection hypothesis using Arabidopsis thaliana mutants that differ in anthocyanin accumulation

Archive ouverte | Gould, Kevin S. | CCSD

International audience. There is strong empirical evidence that foliar anthocyanins assist in protecting chloroplasts from potentially damaging effects of supernumerary photons. Nevertheless, around 30% of published...

The velamen protects photosynthetic orchid roots against UV-B damage, and a large dated phylogeny implies multiple gains and losses of this function during the Cenozoic

Archive ouverte | Chomicki, Guillaume | CCSD

UV-B radiation damage in leaves is prevented by epidermal UV-screening compounds that can be modulated throughout ontogeny. In epiphytic orchids, roots need to be protected against UV-B because they photosynthesize, sometimes even...

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