IIB   20738
INSTITUTO DE INVESTIGACIONES BIOLOGICAS
Unidad Ejecutora - UE
capítulos de libros
Título:
Auxin as part of the wounding response in plants
Autor/es:
CLAUDIA CASALONGUE; DIEGO F FIOL; RAMIRO PARÍS; ANDREA V GODOY; SEBASTIAN D'IPPOLITO; MARIA C TERRILE
Libro:
Phytohormones and Abiotic Stress Tolerance in Plants
Editorial:
Springer-Verlag
Referencias:
Lugar: Heidelberg; Año: 2012; p. 6 - 10
Resumen:
p { margin-bottom: 0.08in; }strong.ctl { font-family: "Times New Roman",serif; } In plants, different types of injury and physical damage are commonly referred as wounding. Therefore, the wound-healing response is aimed at restoring the physiological status of the damaged tissue and is critical to prevent further lesions. It is well-known that particular events at the histological, genetic, and biochemical levels are fundamental to the success response upon wounding. Some organs such as leaves and shoots have cutin as a protective barrier, but if a wound occurs at this level, then putative pathogen may gain entrance into the plant through the injured tissue. Consequently, plants have developed an orchestrated responses to wounding resulting in a complex defense mechanism. Interestingly, the classical growth regulator auxin has been implicated in the wounding response. Even though initial reports showed an apparent antagonism between auxin and wounding, novel findings suggest a more intricate relationship between auxin, stress and other plant defense pathways. More recently, global transcriptomic studies carried out in Arabidopsis and Solanaceous, had offered a wider comprehensive picture on the regulation of auxin-responsive genes by wounding. We reviewed the participation of auxin-responsive genes as part of the complex mechanism that takes place during wounding. In addition, it was also raised a discussion about the participation nitric oxide upon wounding.