IIB   20738
INSTITUTO DE INVESTIGACIONES BIOLOGICAS
Unidad Ejecutora - UE
capítulos de libros
Título:
Nitric Oxide and Phosphatidic acid Signaling in Plants
Autor/es:
DISTÉFANO, A.; LANTERI, L,; TEN HAVE, A; GARCÍA-MATA, C,; LAMATTINA L; LAXALT, A. M.
Libro:
Plant Lipid Signaling
Editorial:
SPRINGER
Referencias:
Lugar: Heidelberg; Año: 2009; p. 223 - 242
Resumen:
Nitric oxide (NO) is an important redox-based regulator of cell physiology
involved in many signaling processes in plants. The precise mechanism of how
NO activates or interacts with different targets is still poorly understood. The polar
lipid, phosphatidic acid (PA) is another molecule involved in plant signaling. NO
and PA have been independently regarded as general, multifunctional, stresssignaling
molecules in plants. Since they share common effectors, we hypothesized
that NO and PA participate in the same signaling pathways. Results from our
laboratory revealed that NO can induce PA formation during (1) plant-defense
responses, (2) stomatal closure, and (3) adventitious root formation. Two enzymatic
pathways produce PA, phospholipase D, and phospholipase C in concerted action
with the diacylglycerol kinase. We discuss how NO might act on PA-generating
enzymes as well as on their common downstream effectors such as Ca2+, reactive
oxygen species, protein kinases, and phosphatases
oxygen species, protein kinases, and phosphatases
2+, reactive
oxygen species, protein kinases, and phosphatases