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Science 1 July 1977:
Vol. 197. no. 4298, pp. 66 - 67
DOI: 10.1126/science.867050
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Articles

Science, Vol 197, Issue 4298, 66-67
Copyright © 1977 by American Association for the Advancement of Science

articles

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

E Ohnishi, T Mizuno, F Chatani, N Ikekawa, and S Sakurai

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.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
A Cytokinin (Isopentenyl-Adenosyl-Mononucleotide) Linked to Ecdysone in Newly Laid Eggs of Locusta migratoria.
G. TSOUPRAS, B. LUU, and J. A. HOFFMANN (1983)
Science 220, 507-509
   Abstract »    PDF »
Larval Testes of the Tobacco Budworm: A New Source of Insect Ecdysteroids.
M. J. LOEB, C. W. WOODS, E. P. BRANDT, and A. B. BOAKOVEC (1982)
Science 218, 896-898
   Abstract »    PDF »


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