Autor: |
Anna Rachinsky, Klaus Hartfelder |
Rok vydání: |
1990 |
Předmět: |
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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 |
Externí odkaz: |
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