6533b7d7fe1ef96bd1268670
RESEARCH PRODUCT
Arachnid oenocytes: ecdysone synthesis in the legs of harvestmen (Opilionidae).
Franz RomerWerner Gnatzysubject
ArachnidEcdysoneHistologybiologyOpilio parietinusOpisthosomamedia_common.quotation_subjectSpidersCell BiologyAnatomyInsectIn vitro incubationbiology.organism_classificationEndoplasmic ReticulumPhalangium opilioPathology and Forensic MedicineAnimalsFemurOpilioEcdysone synthesismedia_commondescription
Cells measuring up to 130 microns have been found in the proximal segments of the femora of all four pairs of walking legs in various species of harvestmen (Phalangium opilio, Leiobonum limbatum, Opilio parietinus, and Opilio ravennae). These cells exhibit all the fine-structural characteristics of insect oenocytes, in particular the conspicuous agranular endoplasmic reticulum. Radioimmunoassay after in vitro incubation of these cells has demonstrated the synthesis of alpha- and beta-ecdysone. These ecdysteroids have been found in the ovaries and tergites of the opisthosoma as well as in the oenocytes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1981-04-01 | Cell and tissue research |