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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

2-Deoxy-alpha-ecdysone from ovaries and eggs of the silkworm, Bombyx mori.

From ovaries dissected from developing and emerged adults of the silkworm, Bombyx mori, two substances having high molting hormone activity were isolated. One of these was identified as 2-deoxy-alpha-ecdysone by means of high-pressure liquid chromatography and mass spectrometry. Although this compound had previously been isolated from the fern Blechnum minus and postulated to be the precursor of alpha-ecdysone, it had not been obtained from insect material. The compound is also contained in the form of a conjugate in ovaries as well as in diapausing silkworm embryos.[1]


  1. 2-Deoxy-alpha-ecdysone from ovaries and eggs of the silkworm, Bombyx mori. Ohnishi, E., Mizuno, T., Chatani, F., Ikekawa, N., Sakurai, S. Science (1977) [Pubmed]
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