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)|
|Number of pages||5|
|Journal||Comparative Biochemistry and Physiology -- Part A: Physiology|
|State||Published - 1986|