Morphometric changes on honeybee Apis mellifera L. workers fat body cells after juvenile hormone topic application at emergence
| Autor: | Vagner Tadeu Paes-de-Oliveira, William F. Antonialli, C. Cruz-Landim, Silvana B. Poiani |
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| Rok vydání: | 2008 |
| Předmět: |
Fat body
medicine.medical_specialty Treated group Cell type Administration Topical Fat Body General Physics and Astronomy Cell Biology Bees Biology Juvenile Hormones Worker bee Endocrinology Structural Biology Untreated control Internal medicine Juvenile hormone medicine Animals General Materials Science Hormone |
| Zdroj: | Micron. 39:426-430 |
| ISSN: | 0968-4328 |
| DOI: | 10.1016/j.micron.2007.02.002 |
| Popis: | The effect of topical application of juvenile hormone (JH) over the lifetime of worker bees was evaluated in Apis mellifera, by measuring the area of the two cell types, trophocytes and oenocytes, found in the fat body. Topical application of 1 microl of a 1 microg/microl solution of JH in acetone to the abdomens of newly emerged workers produced an increase in cell size, in both types of cell of 5-day-old treated workers in relation to the untreated control. The treatment was more effective on the oenocytes, since there were significant differences compared to the averages of the treatments and the interaction of the treatments with the age of the workers. The developmental pattern seemed to differ from the treated group. However, subsequent effects were probably dependent on different, natural variations in hormonal levels. |
| Databáze: | OpenAIRE |
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