Glycolytic Enzymes in Toxoplasma gondii Tachyzoites
Author Information
Author(s): Sebastien Pomel, Flora C. Y. Beckers, Con J. M. Soldati-Favre
Primary Institution: University of North Carolina, Chapel Hill, North Carolina, United States of America
Hypothesis
Toxoplasma gondii relies primarily on glycolysis for energy during motility and can relocate its glycolytic enzymes in response to environmental changes.
Conclusion
Toxoplasma gondii can relocate its glycolytic enzymes between its cytoplasm and pellicle depending on whether it is inside or outside of host cells, optimizing ATP delivery for survival and replication.
Supporting Evidence
- Toxoplasma gondii relies on glycolysis for motility, as shown by motility assays under varying conditions.
- Glycolytic enzymes translocate to the pellicle upon egress from host cells and revert to the cytoplasm after invasion.
- Translocation of enzymes is influenced by changes in potassium and calcium concentrations in the environment.
Takeaway
Toxoplasma gondii moves its energy-making machines around depending on whether it's inside or outside a host, helping it stay alive and grow.
Methodology
The study involved motility assays and immunofluorescence microscopy to observe the distribution of glycolytic enzymes in Toxoplasma gondii under different conditions.
Digital Object Identifier (DOI)
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