Ultrastructural study of the regressing prothoracic glands of blattarian insects

@article{Scharrer1966UltrastructuralSO,
  title={Ultrastructural study of the regressing prothoracic glands of blattarian insects},
  author={Berta Scharrer},
  journal={Zeitschrift f{\"u}r Zellforschung und Mikroskopische Anatomie},
  year={1966},
  volume={69},
  pages={1-21}
}
The prothoracic glands, source of the molting hormone ecdysone, regress within a few days after the final molt, a process which was analyzed with electron microscopic methods in the cockroaches Leucophaea and Blaberus. This strictly timed event is accompanied by drastic alterations in cellular fine structure. Early signs of breakdown appear in groups of nuclei whose substance becomes segregated into patches of contrasting electron density characteristic of pyknosis. The most conspicuous change… CONTINUE READING

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