Title
Impact of a perfluorinated organic compound PFOS on the terrestrial pollinator **Bombus terrestris** (Insecta, Hymenoptera) Impact of a perfluorinated organic compound PFOS on the terrestrial pollinator **Bombus terrestris** (Insecta, Hymenoptera)
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
article
Publication
New York, N.Y. ,
Subject
Biology
Source (journal)
Ecotoxicology. - New York, N.Y.
Volume/pages
20(2011) :2 , p. 447-456
ISSN
0963-9292
ISI
000287245000015
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In Bombus terrestris females, dominant status is correlated with high levels of juvenile hormone (JH) biosynthesis and rapid oöcyte maturation. Queenright workers, which are inhibited by the dominant queen, complete the cycle of oöcyte maturation while exhibiting a continuous low rate of JH production, but their egglaying is inhibited. Measurements in foundress queens suggest that the low JH titer during oögenesis is probably not responsible for the inhibition of egg-laying. Queenless workers, kept individually, are not activated either for JH production or oöcyte maturation. In groups of three queenless workers, a dominance order becomes established and high rates of JH synthesis are observed in the dominant egg-laying workers, with low rates in subordinated workers. In groups of founder queens, also, a dominance order becomes established and results in a reduced rate of JH production in subordinated females.
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