Ecdysteroids during early embryonic development in silkworm Bombyx mori: metabolism and functions.

@article{Sonobe2004EcdysteroidsDE,
  title={Ecdysteroids during early embryonic development in silkworm Bombyx mori: metabolism and functions.},
  author={Haruyuki Sonobe and Ryouichi Yamada},
  journal={Zoological science},
  year={2004},
  volume={21 5},
  pages={503-16}
}
It has been well established that eggs of insects, including those of the silkworm Bombyx mori, contain various molecular species of ecdysteroids in free and conjugated forms. In B. mori eggs, 20-hydroxyecdysone (20E) is a physiologically active molecule. In nondiapause eggs, 20E is produced by the conversion of maternal conjugated ecdysteroids (ecdysteroid-phosphates) and by de novo biosynthesis. In contrast, in diapause eggs, neither of these metabolic processes occurs. In de novo… CONTINUE READING
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