How Temperature Affects Early Embryonic Cell Division
Author Information
Author(s): Rombouts Jan, Tavella Franco, Vandervelde Alexandra, Phong Connie, Ferrell James E., Yang Qiong, Gelens Lendert
Primary Institution: Cold Spring Harbor Laboratory
Hypothesis
Why does the Arrhenius equation approximately hold for the early embryonic cell cycle and why does it break down at temperature extremes?
Conclusion
The study found that temperature scaling in the early embryonic cell cycle is influenced by biphasic temperature scaling and imbalances in activation energies of enzymes.
Supporting Evidence
- The apparent activation energies for the early embryonic cell cycle are similar across diverse ectotherms.
- The study found a Q10 value of 2.8 ± 0.4 for the early embryonic cell cycle.
- Biphasic temperature scaling in critical components of the cell cycle oscillator circuit contributes to temperature scaling.
- Imbalances in activation energies for different enzymes also affect temperature scaling.
- Experimental studies indicate that both mechanisms contribute to the general scaling of temperature.
Takeaway
Temperature changes can affect how cells divide in embryos, and this study helps us understand why that happens.
Methodology
The study used experimental data from various ectothermic species and computational models to analyze temperature scaling in the cell cycle.
Participant Demographics
The study included data from multiple ectothermic species, including Xenopus laevis, Xenopus tropicalis, and Danio rerio.
Statistical Information
Confidence Interval
76 ± 9 kJ/mol
Digital Object Identifier (DOI)
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