Oxidative stress and its role in the synchronization of circadian rhythms in crustaceans: An ecological perspective

Abstract

This work reviews concepts regarding the endogenous circadian clock and the relationship between oxidative stress (OS), light, and entrainment in different organisms, particularly in crayfish. In the first section, the molecular control of circadian rhythms in invertebrates, particularly in Drosophila, is reviewed, and this model is contrasted with recent reports on the circadian genes and proteins in crayfish. Second, the redox mechanisms and signaling pathways that participate in the entrainment of the circadian clock in different organisms such as zebrafish, its relationship with the redox state, and synchronization by cryptochromes is discussed. Finally, the relationship between metabolism, ROS signals, and transcription factors, such as HIF-1-alpha in crayfish, as well as the possibility that HIF-1-alpha participates in the regulation of circadian control genes in crustaceans, particularly in crayfish, is discussed.