Modeling the ascorbate-glutathione cycle in chloroplasts under light/dark conditions.

ABSTRACT:

Background

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.

Results

We herein studied the dynamic behavior of this pathway under light/dark conditions and for several consecutive days. For this purpose, a mathematical model was developed including a variable electron sourc

SUBMITTER: Valero E 

PROVIDER: S-EPMC4722729 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature