The lutein epoxide cycle in vegetative buds of woody plants

Functional Plant Biology : FPB
José I García-PlazaolaJ M Becerril

Abstract

Recent works have shown that two xanthophyll cycles operate simultaneously in several plant species: the ubiquitous violaxanthin + anteraxanthin + zeaxanthin (VAZ) cycle and the lutein epoxide (Lx) cycle. In the present work we tested for the presence of the Lx cycle in vegetative buds of woody plants. After an extensive screening of 130 species, we have shown that Lx is present in buds of many different plant species and leaf primordia are enriched in Lx compared with leaves. As a result, the Lx pool was higher than the violaxanthin (V) pool in several species. Although Lx can be potentially de-epoxidised in buds, light attenuation by scales inhibited the daily operation of the Lx cycle. This finding would imply that the Lx cycle is not involved in short-term reversible photoprotection in buds. However, a light-induced decrease in Lx was observed through the winter. An extensive screening of 130 species in 49 families conducted to elucidate the taxonomic extension of this cycle showed a widespread presence of the Lx cycle. The presence of Lx has a high fidelity at the family level, but its presence in unrelated taxa suggests that this character has appeared independently in several different groups of plants.

References

Oct 28, 1998·Proceedings of the National Academy of Sciences of the United States of America·B J PogsonD DellaPenna
Feb 3, 1999·Proceedings of the National Academy of Sciences of the United States of America·R A BungardJ D Scholes
Mar 14, 2002·Plant Physiology·Patricia Müller-MouléKrishna K Niyogi
May 22, 2003·Journal of Experimental Botany·Michael TauszMaria Soledad Jiménez
Jan 1, 1975·Planta·H D RabinowitchN Kedar
Mar 1, 2003·Functional Plant Biology : FPB·José I García-PlazaolaJosé M Becerril
Aug 1, 2002·Functional Plant Biology : FPB·José I García-PlazaolaJosé M Becerril
Oct 1, 2002·Functional Plant Biology : FPB·Shizue MatsubaraC Barry Osmond

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Citations

Jul 10, 2012·Photosynthesis Research·José Ignacio García-PlazaolaAlbert Porcar-Castell
Aug 2, 2017·Proceedings of the National Academy of Sciences of the United States of America·Lauriebeth LeonelliKrishna K Niyogi
Sep 1, 2006·Functional Plant Biology : FPB·Chang-Lian PengCheng-Xue Zhao
Sep 1, 2007·Functional Plant Biology : FPB·Jose I García-PlazaolaC Barry Osmond
May 22, 2010·Physiologia Plantarum·Raquel EstebanJosé I García-Plazaola
Jan 1, 2009·Functional Plant Biology : FPB·Shizue MatsubaraKlaus Winter
Oct 2, 2009·Plant Signaling & Behavior·Raquel EstebanJosé Ignacio García-Plazaola
Nov 18, 2005·Progress in Lipid Research·Florence BouvierBilal Camara

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