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Renata Cristina Costa e Silva

Renata Cristina Costa e Silva

University of Brasilia, Brazil

Title: GC-MS-based metabolic analysis to help unravelling the biological role of aluminum (Al) in Qualea grandiflora Mart. (Vochysiaceae).


Biography: Renata Cristina Costa e Silva


Qualea grandiflora Mart. is a species of Brazilian savanna (Cerrado) that depends on aluminum (Al) to grow and develop properly. In this study, the metabolic profile of Q. grandiflora roots and leaves grown with and without Al has been investigated by gas chromatography-mass spectrometry (GC-MS). The score plots of principal component analysis (PCA) and partial least squares-discriminate analysis (PLS-DA) showed clear discrimination between control and Al-treated samples of both tissues samples. The metabolic profile indicated that the presence of Al caused changes in sugars, amino acids and organic acids accumulation between treatments. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis of integration data demonstrated Q. grandiflora grown with Al resulted in biochemical changes in several metabolic pathways including carbohydrate metabolism, glutathione metabolism, photosynthesis, amino acid metabolism and oxidative phosphorylation-related pathways. Furthermore, an integrated analysis of the effects of Al will be performed on metabolites and transcripts levels in Q. grandiflora. These results will contribute to elucidate the metabolic role of Al in this native species, which can be the basis for genetic manipulation of crop plants towards higher tolerance to acid soils.