Background#R##N#Light/dark cycles are probably the most important environmental signals that regulate plant development. Light is essential for photosynthesis, but an excess, in combination with the unavoidable presence of atmospheric oxygen inside the chloroplast, leads to excessive reactive oxygen species production. Among the defense mechanisms that activate plants to cope with environmental stress situations, it is worth noting the ascorbate-glutathione cycle, a complex metabolic pathway in which a variety of photochemical, chemical and enzymatic steps are involved.
['Edelmira Valero', 'Hermenegilda Macià', 'Ildefonso M. De la Fuente', 'José-Antonio Hernández', 'María-Isabel González-Sánchez', 'Francisco García-Carmona']
Modeling the ascorbate-glutathione cycle in chloroplasts under light/dark conditions.