Summary
The juvenile hormone esterase (JHE) titer was measured during the last larval instar of 11 species of Lepidoptera (Pieris rapae, Junonia coenia, Danaus plexippus, Hemileuca nevadensis, Pectinophora gossypiella, Spodoptera exigua, Orgyia vetusta, Ephestia elutella, Galleria mellonella, Manduca sexta andEstigmene acrea). All species had a peak of JHE at or near the time of wandering. The peak activity at this time ranged from 0.8 to 388 nmoles JH III cleaved/min·ml. All species exceptJ. coenia had a second peak of JHE during the late prepupal stage. The height of the second peak ranged from 0.4 to 98.4 nmoles/min·ml. However, there was no apparent correlation between size of the first and second JHE activity peaks for the lepidopteran species examined. There was an apparent relationship between the height of the first and second JHE peaks and reports on titer of JH just prior to these peaks. These data support, with some qualifications, the extension of developmental information obtained on several well studied species to a variety of Lepidoptera.
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Abbreviations
- JH :
-
juvenile hormone
- JHE :
-
juvenile hormone esierase
- PTTH :
-
prothoracotropic hormone
- R o -10-3108 :
-
1-(4′-ethylphenoxy)-6,7-epoxy-3-ethyl-7-methylnonane
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Jones, D., Jones, G., Wing, K.D. et al. Juvenile hormone esterases of Lepidoptera. Journal of Comparative Physiology B 148, 1–10 (1982). https://doi.org/10.1007/BF00688882
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DOI: https://doi.org/10.1007/BF00688882