Abstract
The desiccated and non-desiccated cysts of the brine shrimp, Artemia parthenogenetica showed the occurrence of lipid peroxidation. Further investigation of the cellular response to the peroxides revealed the presence and role of both enzymic and non-enzymic antioxidants. Glutath one peroxidase showed higher activity than catalase, although both the enzymes manifested an increasing trend in activity in desiccated cysts compared with the non-desiccated cysts. Among the non-enzymic antioxidants, sulphydryl groups seemed to play an indirect role in protecting the reversibly denatured molecules from the deleterious effects of peroxides. The decreased content of other antioxidants, such as ascorbic acid and reduced glutathione, in the desiccated cysts reflected their direct utilization by peroxides in order to mitigate the influence of free-radicals on the encysted embryo.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 17-22 |
| Number of pages | 6 |
| Journal | Biomedical Letters |
| Volume | 53 |
| Issue number | 209 |
| State | Published - 1996 |
| Externally published | Yes |
Keywords
- Antioxidants
- Artemia parthenogenetica
- Catalase
- Cryptobiosis
- Glutathione peroxidase
- Lipid peroxidation
ASJC Scopus subject areas
- General Biochemistry, Genetics and Molecular Biology