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Ecdysteroid titers during postembryonic development of Dermanyssus gallinae (Acari: Dermanyssidae)
C M Chambers1, E M Dotson, J H Oliver
1Institute of Arthropodology and Parasitology, Georgia Southern University, Statesboro 30460-8056, USA.
Journal of Medical Entomology
|January 1, 1996
Abstract:
Ecdysteroid titers in methanolic extracts of protonymphal and deutonymphal stages of the chicken mite, Dermanyssus gallinae (De Geer), were measured using radioimmunoassay. Highest titers of ecdysteroids were present 24 h after feeding. Further studies using high-performance liquid chromatography radioimmunoassay showed that ecdysteroid immunopositive material had the same retention time as 20-hydroxyecdysone and ecdysone. Ecdysteroid conjugates appear to be present in polar and apolar fractions.