title: Sucrose signaling in plants: a world yet to be explored.
abstract: The role of sucrose as a signaling molecule in plants was originally proposed several decades ago. However, recognition of sucrose as a true signal has been largely debated and only recently this role has been fully accepted. The best-studied cases of sucrose signaling involve metabolic processes, such as the induction of fructan or anthocyanin synthesis, but a large volume of scattered information suggests that sucrose signals may control a vast array of developmental processes along the whole life cycle of the plant. Also, wide gaps exist in our current understanding of the intracellular steps that mediate sucrose action. Sucrose concentration in plant tissues tends to be directly related to light intensity, and inversely related to temperature, and accordingly, exogenous sucrose supply often mimics the effect of high light and cold. However, many exceptions to this rule seem to occur due to interactions with other signaling pathways. In conclusion, the sucrose role as a signal molecule in plants is starting to be unveiled and much research is still needed to have a complete map of its significance in plant function.
authors: Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC); Buenos Aires, Argentina; Facultad de Ciencias Agrarias; Universidad Nacional de Mar del Plata; Buenos Aires, Argentina.
authors: Jorge A
authors: JA
authors: Tognetti
authors: Horacio G
authors: HG
authors: Pontis
authors: Giselle M A
authors: GM
authors: Martínez-Noël
mesh_terms: D008027:Light; D063245:Plant Development; D010944:Plants / Q000378:metabolism*; D015398:Signal Transduction; D013395:Sucrose / Q000378:metabolism*; D013696:Temperature
chemical_list: D013395:Sucrose
keywords: light; low temperature; sucrose signaling