6533b852fe1ef96bd12aabb1
RESEARCH PRODUCT
Nachweis von h�utungsaktiven Stoffen in isolierten Prothorakaldr�sen und Oenocyten beiBombyx mori w�hrend des 5. Larvenstadiums
Franz RomerUlrike Ruhlandsubject
biologyChemistryPeriod (gene)fungibiology.organism_classificationProthoracic glandMolecular biologyCalliphorastomatognathic systemBombyx moriGeneticsBioassayInstarMoultingDevelopmental BiologyHormonedescription
The content of moulting hormones has been determined in homogenates of isolated prothoracic glands and oenocytes during the 5th instar of the silkworm,Bombyx mori by means of the Calliphora bioassay. Prothoracic glands show variable activity in the production of moulting hormones, reaching a maximum near the end of the larval period. Comparable activities, but at higher levels, could be demonstrated in oenocytes. Controls with doubled quantities of tissue produced in a proportionate reaction in the bioassay. Fat bodies were inactive. Prothoracic glands and oenocytes incubated together resulted in a slower pupation index than would be expected from the sum of single determinations of oenocytes and prothoracic glands. This is explained by the ability of prothoracic glands to build conjugates of ecdysones.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1977-01-01 | Wilhelm Roux's Archives of Developmental Biology |