Ecophysiological roles of abaxial anthocyanins in a perennial understorey herb from temperate deciduous forests

Fernández Marín, Beatriz; Esteban Terradillos, Raquel; Míguez, Fátima; Artetxe, Unai; Castañeda Presa, Verónica; Pintó Marijuan, Marta; Becerril, José María; García Plazaola, José Ignacio

Ecophysiological roles of abaxial anthocyanins in a perennial understorey herb from temperate deciduous forests

dc.contributor.author	Fernández Marín, Beatriz
dc.contributor.author	Esteban Terradillos, Raquel
dc.contributor.author	Míguez, Fátima
dc.contributor.author	Artetxe, Unai
dc.contributor.author	Castañeda Presa, Verónica
dc.contributor.author	Pintó Marijuan, Marta
dc.contributor.author	Becerril, José María
dc.contributor.author	García Plazaola, José Ignacio
dc.contributor.department	Natura Ingurunearen Zientziak	eu
dc.contributor.department	Ciencias del Medio Natural	es_ES
dc.contributor.department	IdAB. Instituto de Agrobiotecnología / Agrobioteknologiako Institutua	es_ES
dc.date.accessioned	2018-08-31T08:07:53Z
dc.date.available	2018-08-31T08:07:53Z
dc.date.issued	2015
dc.description.abstract	Accumulation of abaxial anthocyanins is an intriguing leaf trait particularly common among deeply shaded understorey plants of tropical and temperate forests whose ecological significance is still not properly understood. To shed light on it, possible ecophysiological roles of abaxial anthocyanins were tested in the perennial understorey herb of temperate deciduous forests Saxifraga hirsuta, chosen as a model species due to the coexistence of green and anthocyanic leaves and the presence of an easily removable lower anthocyanic epidermis. Anthocyanins accumulated during autumn, which temporally matched the overstorey leaf fall. Patterns of development of abaxial anthocyanins and direct measurements of photochemical efficiency under monochromatic light were not consistent with a photoprotective hypothesis. Enhancement of light capture also seemed unlikely since the back-scattering of red light towards the lower mesophyll was negligible. Seed germination was similar under acyanic and anthocyanic leaves. A relevant consequence of abaxial anthocyanins was the dramatic reduction of light transmission through the leaf. The dark environment generated underneath the Saxifraga canopy was enhanced by the horizontal repositioning of leaves, which occurs in parallel with reddening. This might play a role in biotic interactions by inhibiting vital processes of competitors, which may be of especial importance in spring before the overstorey leaves sprout.	en
dc.description.sponsorship	The authors acknowledge post-doctoral grants from the Research Vicerrectorate of the UPV/EHU, Marie Curie IEF grant (328370 MELISSA) from the European FP7-327 PEOPLE, JAE-Doc fellow from the Spanish National Research Council (CSIC) and pre-doctoral fellowship from the Basque Government. The work was supported by the Spanish Ministry of Education and Science (BFU 2010-15021) and co-funded by Feder and by the Basque Government (UPV/EHU-GV IT-624-13)].	en
dc.format.extent	12 p.
dc.format.mimetype	application/pdf	en
dc.format.mimetype	application/zip	en
dc.identifier.doi	10.1093/aobpla/plv042
dc.identifier.issn	2041-2851 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/30336
dc.language.iso	eng	en
dc.publisher	Oxford University Press	en
dc.relation.ispartof	Aob Plants, 7: plv042	en
dc.relation.projectID	info:eu-repo/grantAgreement/European Commission/FP7/328370/
dc.relation.publisherversion	https://doi.org/10.1093/aobpla/plv042
dc.rights	This is an Open Access article distributed under the terms of the Creative Commons Attribution License,which permits unrestricted reuse, distribution, and reproduction in anymedium, provided the originalwork is properly cited.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/
dc.subject	Abaxial anthocyanins	en
dc.subject	Lactucaxanthin	en
dc.subject	Photoprotection	en
dc.subject	Saxifraga hirsuta	en
dc.subject	Spectrum	en
dc.subject	Winter	en
dc.title	Ecophysiological roles of abaxial anthocyanins in a perennial understorey herb from temperate deciduous forests	en
dc.type	info:eu-repo/semantics/article
dc.type.version	info:eu-repo/semantics/publishedVersion
dspace.entity.type	Publication
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