IIB   20738
INSTITUTO DE INVESTIGACIONES BIOLOGICAS
Unidad Ejecutora - UE
artículos
Título:
Nitric oxide regulation of leaf phosphoenolpyruvate carboxylase-kinase activity: implication in sorghum responses to salinity
Autor/es:
MONREAL, J.A.; ARIAS-BALDRICH, C.; TOSSI, V.; FERIA, A.B.; RUBIO-CASAL, A.; GARCÍA MATA, C.; LAMATTINA, L.; GARCÍA-MAURIÑO, S.
Revista:
PLANTA
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2013 vol. 238 p. 859 - 869
ISSN:
0032-0935
Resumen:
Nitric oxide (NO) is a signaling molecule that
mediates many plant responses to biotic and abiotic stresses,
including salt stress. Interestingly, salinity increases
NO production selectively in mesophyll cells of sorghum
leaves, where photosynthetic C4 phosphoenolpyruvate
carboxylase (C4 PEPCase) is located. PEPCase is regulated
by a phosphoenolpyruvate carboxylase-kinase (PEPCasek),
which levels are greatly enhanced by salinity in sorghum.
This work investigated whether NO is involved in
this effect. NO donors (SNP, SNAP), the inhibitor of NO
synthesis NNA, and the NO scavenger cPTIO were used
for long- and short-term treatments