Ecdysteroid titer and oocyte growth in the northern house mosquito, Culex pipiens L.

G. D. Baldridge, R. Feyereisen

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

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 languageEnglish (US)
Pages (from-to)325-329
Number of pages5
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Volume83
Issue number2
DOIs
StatePublished - 1986
Externally publishedYes

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.

Fingerprint

Dive into the research topics of 'Ecdysteroid titer and oocyte growth in the northern house mosquito, Culex pipiens L.'. Together they form a unique fingerprint.

Cite this