出典:Wiktionary
From ecdysis (“shedding, moulting”) (from Ancient Greek ἔκδυσις (ékdusis, “stripping”)) + steroid.
ecdysteroid (複数形 ecdysteroids)
出典:Wikipedia
出典:『Wikipedia』 (2011/03/22 10:27 UTC 版)
Ecdysteroids are insect moulting and sex hormones which include ecdysone and its homologues such as 20-hydroxyecdysone. Ecdysteroids also occur in other invertebrates where they can play a different role. They also appear in many plants mostly as a protection agents (toxins or antifeedants) against herbivore insects. These phytoecdysteroids have medicinal value and are part of herbal adaptogenic remedies like cordyceps.