Exposed red (anthocyanic) leaves of Quercus coccifera display shade characteristics

Functional Plant Biology : FPB
Yiannis ManetasAntonia Drinia

Abstract

Young leaves in some plants are transiently red due to the presence of anthocyanins, which disappear upon maturation. We investigated the hypothesis that light attenuation by anthocyanins may lead to a shade acclimation of the photosynthetic machinery in red leaves. We took advantage of the intra-species variation in anthocyanin levels of young, exposed leaves of Quercus coccifera. Thus, photosynthetic and photoprotective characteristics were compared in young green and red leaves of the same age, sampled from the corresponding phenotypes occupying the same habitat. Red leaves displayed several shade attributes like thinner laminae, lower Chl a/b ratios and lower levels of the xanthophyll cycle components and β-carotene. In addition, although both leaf kinds had the same area based levels of chlorophylls, these pigments were excluded from the sub-epidermic anthocyanic cell layers, leading to a further reduction of effective mesophyll thickness and an increase in chlorophyll density. Accordingly, red leaves had higher absolute chlorophyll fluorescence signals. In spite of these apparent shade characters, red leaves were less prone to photoinhibition under mild laboratory conditions and displayed slightly but significantly higher...Continue Reading

Citations

Mar 1, 2012·Photochemistry and Photobiology·Adilson Pereira Domingues JúniorPaulo Mazzafera
Jul 5, 2013·Journal of Experimental Botany·Marta JuvanySergi Munné-Bosch
May 25, 2010·Photochemistry and Photobiology·Sulayman A Oladepo, Glen R Loppnow
Dec 2, 2009·Physiologia Plantarum·Xue-Qin ZengChang-Lian Peng
Aug 2, 2007·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Gabriela B Cordón, María G Lagorio
Mar 6, 2010·Journal of Experimental Botany·Nicole M HughesWilliam K Smith
Mar 7, 2020·Frontiers in Plant Science·Wei-Chang GongLing-Zeng Meng
Jun 10, 2020·Plant, Cell & Environment·Marco LandiMassimiliano Tattini
May 12, 2020·The New Phytologist·Ines Pena-Novas, Marco Archetti
Apr 22, 2009·Journal of Experimental Botany·Nick W AlbertKevin M Davies
Jan 1, 2008·Functional Plant Biology : FPB·Nicole M Hughes, William K Smith
Nov 6, 2020·Journal of Evolutionary Biology·Ines Pena-Novas, Marco Archetti

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