Insect Hormones: Alpha Ecdysone and 20-Hydroxyecdysone in Bracken Fern

Insect Hormones: Alpha Ecdysone and 20-Hydroxyecdysone in Bracken Fern

The two major molting hormones of insects, alpha ecdysone and 20-hydroxyecdysone, were isolated in crystalline form from dry pinnae of the bracken fern, Pteridium aquilinum (L.) Kuhn. Three unidentified substances with molting hormone activity were also detected. Bracken is the first plant found to...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1967-09, Vol.157 (3795), p.1436-1438
Hauptverfasser: Kaplanis, J. N., Thompson, M. J., Robbins, W. E., Bryce, B. M.
Format: Artikel
Sprache:eng
Schlagworte:
Chromatography
Chromatography, Thin Layer
Ecdysone - analysis
Ferns
Hormones
Insect hormones
Insect identification
Insect physiology
Materials
Molting
Plants - analysis
Pupae
Steroids
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Beschreibung
Zusammenfassung:The two major molting hormones of insects, alpha ecdysone and 20-hydroxyecdysone, were isolated in crystalline form from dry pinnae of the bracken fern, Pteridium aquilinum (L.) Kuhn. Three unidentified substances with molting hormone activity were also detected. Bracken is the first plant found to contain both of the major insect ecdysones, and it is the first known plant source of alpha ecdysone.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.157.3795.1436