Corpora allata activity, a prime regulating element for caste-specific juvenile hormone titre in honey bee larvae (Apis mellifera carnica)

Autor: Anna Rachinsky, Klaus Hartfelder
Rok vydání: 1990
Předmět:
Zdroj: Journal of Insect Physiology. 36:189-194
ISSN: 0022-1910
DOI: 10.1016/0022-1910(90)90121-u
Popis: Corpora allata activity of queen and worker larvae of the honey bee in late larval development was studied in vitro by a radiochemical assay. Prospective queens showed a high peak of corpora allata activity in the fourth and early fifth larval stadium. This peak coincides with a queen-specific maximum in juvenile hormone titre, demonstrating that modulation of juvenile hormone release is of prime importance in the regulation of the caste-specific juvenile hormone titre. In both castes, hormone release is strictly correlated with juvenile hormone synthesis. The conversion of the precursor methyl farnesoate to juvenile hormone may be regulated caste-specifically, since only in queens but not in workers a linear correlation between intraglandular contents of juvenile hormone and methyl farnesoate could be found.
Databáze: OpenAIRE