Transcriptional regulation during the activation and development of Artemia franciscana encysted embryos

TL;DRAbstract

Early embryos of the crustacean Artemia franciscana (brine shrimp) can get into cryptobiosis under adverse environmental conditions. Under these circumstances, the embryo arrests all metabolic activities, gets dehydrated and is surrounded by a hard shell. These cysts are viable for long periods and can be activated when environmental conditions are favorable. Once the cyst is activated, the embryo resumes development and gives rise in a few hours to a swimming nauplii that continues the development, through several molts, to the adult animal. The activation of the cyst can be reproduced in the laboratory which makes of the Artemia cyst an useful model system to study the mechanisms that regulate the exit of a latent state, as well as embryonic development Activation of the cyst requires resumption of all metabolic activities, including energetic metabolism, protein synthesis, gene transcription, etc. While the mechanisms involved in the activation of the metabolism and protein synthesi

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