English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The distribution of ecdysteroid binding sites in the hypodermal tissue of crayfish (Procambarus clarkii) was examined autoradiographically in correlation with the molting stage. The radiolabeled hormone analogue ponasterone A (25-deoxy-20-hydroxyecdysone) and thaw-mount autoradiographic techniques were used. These techniques enabled us to prevent the dislocation of soluble ponasteronc A. Ecdysteroid binding sites were demonstrated only at certain molting stages, the small gastrolith period (Proecdysis D0 to D2 early). Ponasterone A binding sites appeared in nuclei and cytoplasm of epidermis, Leydig cells and pillar like ells through the stages. The notable appearance of nuclear ecdysteroid binding sites at proecdysis stage D0 coincided with the induction of calcium reabsorption from the exoskeleton, suggesting a strong correlation of the two events. The findings also suggest that the cells involved in calcium transport are targets for ecdysteroids.

Ponasterone A binding sites in hypodermis during the molting cycle of crayfish Procambarus clarkii.