The origin of cleavage forces in dividing eggs. A mechanism in two steps.

@article{Schroeder1981TheOO,
  title={The origin of cleavage forces in dividing eggs. A mechanism in two steps.},
  author={Thomas E. Schroeder},
  journal={Experimental cell research},
  year={1981},
  volume={134 1},
  pages={
          231-40
        }
}
Abstract The mechanical behavior of sea urchin eggs is examined from soon after fertilization up to the time that the cleavage furrow begins to form. The procedure involves compressing eggs between parallel plates so that tensile forces in the egg surface can be calculated. Results show that eggs of Strongylocentrotus purpuratus at 12–13 °C undergo a strong cortical contraction which significantly precedes and is independent of mitosis and which persists through anaphase, the time when the… CONTINUE READING