Auxin partially inhibits APX1 activity through denitrosylation leading to hydrogen peroxidase accumulation and lateral root formation in Arabidopsis

CORREA ARAGUNDE, N.; FORESI, N.; DELLEDONNE, M.; LAMATTINA, L.

Edinburg

Congreso; The 7th International Conference on the Biology; 2012

Nitrosylation of Cys-residues is one of the molecular mechanisms driven by nitric oxide (NO) for regulating biological functions of key proteins. In animals, the NADPH-dependent thioredoxin reductase system (NTS) denitrosylates Cys-residues contributing to the regulation of protein functions. We studied the participation of reductases in the auxin-induced NO-mediated lateral root (LR) development and in keeping the balance of nitrosylated proteins.