RT Conference Proceedings
T1 Ammonium uptake, transport and nitrogen economy in forest trees
A1 Cánovas-Ramos, Francisco Miguel
A1 Ávila-Sáez, Concepción
A1 De-la-Torre-Fazio, Fernando Nicolás
A1 Cañas-Pendón, Rafael Antonio
A1 Pascual-Moreno, María Belén
A1 Castro-Rodríguez, Vanessa Viviana
A1 El-Azaz-Ciudad, Jorge
K1 Bosques
AB AMMONIUM UPTAKE, TRANSPORT AND NITROGENECONOMY IN FOREST TREESFrancisco M. Cánovas, Concepción Avila, Fernando N. de laTorre, Rafael A. Cañas, Belén Pascual, Vanessa Castro-Rodríguez, Jorge El-AzazDepartamento de Biología Molecular y Bioquímica, Facultad de Ciencias,Universidad de Málaga, Spain.Email: canovas@uma.esForests ecosystems play a fundamental role in the regulation ofglobal carbon fixation and preservation of biodiversity. Forest treesare also of great economic value because they provide a wide range ofproducts of commercial interest, including wood, pulp, biomass andimportant secondary metabolites. The productivity of most forestecosystems is limited by low nitrogen availability and woodyperennials have developed adaptation mechanisms, such asectomycorrhizal associations, to increase the efficiency of Nacquisition and metabolic assimilation. The efficient acquisition,assimilation and economy of nitrogen are of special importance intrees that must cope with seasonal periods of growth and dormancyover many years. In fact, the ability to accumulate nitrogen reservesand to recycle N is crucial to determine the growth and production offorest biomass. Ammonium is the predominant form of inorganicnitrogen in the soil of temperate forests and many research effortsare addressed to study the regulation of ammonium acquisition,assimilation and internal recycling for the biosynthesis of aminoacids, particularly those relevant for nitrogen storage. In ourlaboratory, we are interested in studying nitrogen metabolism and itsregulation in maritime pine (Pinus pinaster L. Aiton), a coniferspecies of great ecological and economic importance in Europe andfor which whole-transcriptome resources are available. Themetabolism of phenylalanine plays a central role in the channeling ofcarbon from photosynthesis to the biosynthesis of phenylpropanoidsand the regulation of this pathway is of broad significance fornitrogen economy of maritime pine. We are currently exploring themolecular properties and regulation of genes involved in thebiosynthesis and metabolic fates of phenylalanine in maritime pine.An overview of this research programme will be presented anddiscussed.Research supported by Spanish Ministry of Economy andCompetitiveness and Junta de Andalucía (Grants BIO2015-69285-R,BIO2012-0474 and research group BIO-114).
YR 2016
FD 2016-09-02
LK http://hdl.handle.net/10630/11937
UL http://hdl.handle.net/10630/11937
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 4 mar 2026