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Mycorrhizal symbiosis

 

Abstract

The project we present here focus on ectomycorrhizal (ECM) symbiosis. In temperate forests, trees live in symbiosis with ECM fungi and depend on them for their survival. The fungus delivers soil minerals, particularly phosphorous and nitrogen, to the host roots, whereas the plant transfers photoassimilates to the fungus. Besides promoting plant growth, this symbiosis also increases uptake of water, tolerance to pathogens, or to contaminated soils. For cork oak survival, ECMs are essential for nutrient and water acquisition. The objective of this proposal is to obtain ESTs involved in the development of ECM symbiosis in cork oak. To fulfil this goal, ECM roots will be used for construction of two cDNA libraries from which ESTs will be sequenced and finally used for the cork oak genechip construction.

 

 

 

Involved Groups:

Plant Systems Biology Lab – BioFIG, FFCUL
Center for Biodiversity Functional and Integrative Genomics (BioFIG), University of Minho-Plant Functional Biology Centre

Members:

Mónica Sebastiana (Plant Systems Biology Lab)
Maria Salomé Soares Pais Telles Antunes (Plant Systems Biology Lab)
Maria Teresa Lino Neto (BioFIG-UMinho)
Rui Manuel Tavares (BioFIG-UMinho)

 

Related Publications:

Acioli-Santos B, Malosso E, Calzavara-Silva C E, Figueiredo A, Sebastiana M, Pais S. 2008. Fungal transcript pattern during pre-infection stage (12h) of ectomycorrhiza formed between Pisolithus tinctorius and Castanea sativa roots, using cDNA microarrays. Cur. Microbiol. DOI 10.1007/s00284-008-9253-2.

Azevedo H, Lino-Neto T, Tavares RM 2003. An improved method for high quality RNA isolation from needles of adult maritime pine trees. Plant Mol. Biol. Rep. 21: 333-338.

Baptista P, Martins A, Pais MS, Tavares RM, Lino-Neto T 2007. Involvement of reactive oxygen species during early stages of Castanea sativa ectomycorrhizal establishment. Mycorrhiza 17: 185-19

Baptista P, Tavares RM, Lino-Neto T 2010. Signaling in Ectomycorrhizal Symbiosis Establishment. In: Soil Biology. Springer Berlin Heidelberg. (in press)

Sebastiana M., Figueiredo A., Acioli-Santos B., Sousa L., Pessoa F., Baldé A., Salomé Pais M. 2008. Identification of plant genes involved on the initial contact between ectomycorrhizal symbionts (Castanea sativa - European chestnut and Pisolithus tinctorius). European Journal of Soil Biology, DOI: 10.1016/j.ejsobi.2009.02.

 

Involved Institutions:

FFCUL
UMinho

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