Abstract
1. 1. In an anautogenous strain of the northern house mosquito, Culex pipiens, the ovaries reached the resting stage (follicle length = 90 μm) three days after adult emergence. 2. 2. Follicle length increased from 90 to 550 μm between 0 and 60 hr after a blood meal. 3. 3. Total ecdysteroids reached a peak at 400 fmol/insect at 36 hr after a blood meal then declined rapidly. 4. 4. The ratio of 20-hydroxyecdysone to ecdysone increased in conjunction with the total cedysteroid level. 5. 5. Oocyte growth beyond the resting stage and initiation of vitellogenesis was dependent on a head factor which was released within 4-8 min of the start of the blood meal.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 325-329 |
| Number of pages | 5 |
| Journal | Comparative Biochemistry and Physiology -- Part A: Physiology |
| Volume | 83 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1986 |
| Externally published | Yes |
Bibliographical note
Funding Information:Acknowledgements-We thankA . Boernera nd S. Harwood for theirt echnicaal ssistanceD, r D. W. Beanf or readingt he manuscripta, nd Dr J. D. O’Connor (UCLA) for a gift of antiserum.T his work was supportedb y NIH grant AI 19192t o R. F. Oregon Agricultural ExperimentS tation Technicalp aper No. 7551.