IIB   20738
INSTITUTO DE INVESTIGACIONES BIOLOGICAS
Unidad Ejecutora - UE
artículos
Título:
Extracellular ATP and nitric oxide signaling pathways regulate redox-dependent responses associated to root hair growth in etiolated Arabidopsis seedlings
Autor/es:
TERRILE, M. C.; TONÓN, C.; IGLESIAS, M. J.; LAMATTINA, L.; CLAUDIA CASALONGUE
Revista:
Plant Signaling and Behavior
Editorial:
Landes Bioscience
Referencias:
Lugar: USA; Año: 2009 vol. 5 p. 1 - 4
ISSN:
1559-2316
Resumen:
Extracellular ATP (eATP) and nitric oxide (NO) have emerged as crucial players in plant development, stress responses and cell viability. Glutathione (GSH) is an abundant reducing agent with proposed roles in plant growth, development and stress physiology. In a recent publication, we demonstrated that eATP and NO restore hypocotyl elongation of etiolated Arabidopsis seedlings treated with GSH. Here it is reported that exogenous ATP also restore root hair growth suggesting a role for ATP and NO in the regulation of redox balance associated to specific processes of plant morphogenesis. A tentative model integrating redox-, eATP- and NO- signaling pathways during root hair growth in Arabidopsis seedlings is presented.