Document Detail

Immediate and latent effects induced by the antiallatotropin precocene 2(P2) on embryonic Dermacentor variabilis (Say) (Acari: Ixodidae).
MedLine Citation:
PMID:  7328466     Owner:  NLM     Status:  MEDLINE    
Fumigation of eggs with the antiallatotropin precocene 2(P2) disrupted development late in embryogenesis in the American dog tick Dermacentor variabilis. An age (time) gradient of responses in embryos was noted. Subsequent developmental effects included partial failure of stadia to attach, feed, ecdyse and partial-to-complete sterility in adult females. No precocious metamorphosis or adultiformes were observed, but a change in sex ratio of surviving adults was noted. A subsequent application of juvenile hormone 3 (JH 3) to P2-sterilized females enabled them to feed and successfully complete the gonadotrophic cycle. Restoration of gonadotrophic function by exogenous JH 3 suggested the possibility of a naturally occurring JH in D. variabilis.
M J Hayes; J H Oliver
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Journal of parasitology     Volume:  67     ISSN:  0022-3395     ISO Abbreviation:  J. Parasitol.     Publication Date:  1981 Dec 
Date Detail:
Created Date:  1982-04-20     Completed Date:  1982-04-20     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7803124     Medline TA:  J Parasitol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  923-7     Citation Subset:  IM    
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MeSH Terms
Benzopyrans / pharmacology*
Dermacentor / drug effects*,  embryology,  physiology
Feeding Behavior / drug effects
Juvenile Hormones / pharmacology
Metamorphosis, Biological / drug effects
Reproduction / drug effects
Ticks / drug effects*
Grant Support
09556//PHS HHS
Reg. No./Substance:
0/Benzopyrans; 0/Juvenile Hormones; 644-06-4/precocene II

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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