Lachaise F, Hoffmann J A
Hoppe Seylers Z Physiol Chem. 1982 Sep;363(9):1059-67. doi: 10.1515/bchm2.1982.363.2.1059.
Eggs at various stages of embryonic development of Carcinus maenas contain high concentrations of the ecdysteroid ponasterone A together with lower titres of 20-hydroxyecdysone and ecdysone. Correlative studies on ecdysteroid titres and developmental characteristics of Carcinus embryos indicate that one function of ponasterone A might be related to the control of deposition of an embryonic envelope.