Editorial: Chloroplast redox state: new insights into stress responses and acclimation

Redox reactions, a type of reaction involving a transfer of electron between two species, are fundamental for life on Earth. Universal carriers of reducing power such as pyridine nucleotides (NAD+/NADH, NADP+/NADPH) and thiol-based carriers (e.g., thioredoxins, glutaredoxins, peroxiredoxins) are key regulators of multiple metabolic, signaling, and transcriptional processes in cells. This Research Topic brings together articles that deal with many aspects of redox regulation in plants, with special emphasis on reactions taking place in chloroplasts. It contains 4 papers, of which 3 are original research and one is a review.