CONICET | Buscador de Institutos y Recursos Humanos

INVESTIGADORES

BATTAGLIA Marina Esther

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artículos

congresos y reuniones científicas

Título:

Characterization of an Alkaline/Neutral Invertase in development and abiotic stresses

Autor/es:

BATTAGLIA, MARINA; LECHNER, LEANDRA; MARTIN, MARIA VICTORIA; MARTINEZ-NOEL, GISELLE; SALERNO, GRACIELA

Lugar:

Foz do Iguaçu

Reunión:

Congreso; 11th International Plant Molecular Biology (IPMB, 2015); 2015

Institución organizadora:

MYNCYT-CONICET-SBG-CAPES-INTA-FABESP

Resumen:

In plants, sucrose (Suc)and its cleavage products glucose (Glu) and fructose (Fru) have a primary rolein carbon metabolism but also as signaling transduction molecules. Invertases(Inv) catalyze the irreversible hydrolysis of Suc into Glu and Fru and they wereclassified by their in vitro optimumpH in acid and alkaline/neutral invertases (A/N Inv). Recent findings haveindicated the presence A/N Inv not only in the cytosol but also in organelles,as chloroplast and mitochondria. In Arabidopsis, mitochondrial A/N Inv gene family was represented bythree members, named as A/N InvA, A/N InvC and A/N InvH. Interestingly,analysis of knockout mutants in A/N InvAand A/N InvC genes demonstrated a newrole for these proteins, showing an impaired growth phenotype with alterationsin development and abiotic stress responses. Here, we present thephenotypic analysis of Ath mutant in A/N InvH gene (At3g05820) growing innormal and under abiotic stress conditions. Relative expression of plastidic A/N Inv genes in A/N InvH mutant background was analyzed. Our results contributeto understand the role of mitochondrial A/N Inv family proteins during developmentand stress conditions.

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