Short Communication: Post-Anoxic Viability and Developmental Rate of Artemia Franciscana Encysted Embryos

Short Communication Post-anoxic Viability and Developmental Rate of Artemia Franciscana Encysted Embryos

Free-living animals differ widely in their tolerance to the absence of molecular oxygen (anoxia): most die within hours or days under these conditions, and even well-adapted forms such as intertidal invertebrates do not survive more than a month or so of continuous anoxia (Hochachka, 1980; Hochachka and Guppy, 1987; Bryant, 1991). A striking exception is the brine shrimp, Artemia franciscana, w...

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

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 emb...

Desiccation tolerance in encysted embryos of the animal extremophile, artemia.

Encysted embryos (cysts) of the primitive crustacean, Artemia franciscana, are among the most resistant of all animal life history stages to extremes of environmental stress. These embryos, extremophiles of the animal kingdom, are the main focus of this paper. Previous work has revealed the importance of biochemical and biophysical adaptations that provide a significant part of the basis of the...

Artemia franciscana

Artemia franciscana C. Drewes (updated, 2002) http://www.zool.iastate.edu/~c_drewes/ http://www.zool.iastate.edu/~c_drewes/Artemph.jpg Taxonomy Phylum: Arthropoda Subphylum): Crustacea Class: Branchiopoda (includes fairy shrimp, brine shrimp, daphnia, clam shrimp, tadpole shrimp) Order: Anostraca (brine shrimp and fairy shrimp) Genus and species: Artemia franciscana (= the North American versio...

Metabolic downregulation during diapause in embryos of Artemia franciscana