The isolation and identification of juvenile hormone from cockroach corpora allata in vitro
✍ Scribed by Peter J. Müller; Petr Masner; Karl H. Trautmann; Miloś Suchý; Hans-Kaspar Wipf
- Book ID
- 118936273
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 247 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0024-3205
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Juvenile hormone esterase (JHE) activity released by the corpora allata (CA) into incubation media (CA-JHE) was titered daily during the course of the last (fifth [V]) larval stadium of Manduca sexta. This CA-JHE activity was relatively low during the early last stadium up to the time of commitment
I-Citronellyl-5-phenyl imidazole (1,5-CPI), l-citronellyl-4-phenyl imidazole (I,& CPI) and I-citronellyl-2-phenyl imidazole (1,2-CPI) were tested as inhibitors of JH-Ill biosynthesis in vitro. 1,5-CPI was found to be most active followed by 1,2-CPI. The least active isomer was 1,4-CPI. Inhibition of