Juvenile hormone affects the development and strength of circadian rhythms in young bumble bee (Bombus terrestris) workers.

ABSTRACT: The circadian and endocrine systems influence many physiological processes in animals, but little is known on the ways they interact in insects. We tested the hypothesis that juvenile hormone (JH) influences circadian rhythms in the social bumble bee Bombus terrestris. JH is the major gonadotropin in this species coordinating processes such as vitellogenesis, oogenesis, wax production, and behaviors associated with reproduction. It is unknown however, whether it also influences circadian processes. We topically treated newly-emerged bees with the allatoxin Precocene-I (P-I) to reduce circulating JH titers and applied the natural JH (JH-III) for replacement therapy. We repeated this experiment in three trials, each with bees from different source colonies. Measurements of ovarian act

SUBMITTER: Pandey A 

PROVIDER: S-EPMC7752729 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature