✦ LIBER ✦

Immunocytochemical study of the hyperglycemic hormone (CHH)-producing system in the eyestalk of the crayfish Astacus leptodactylus during larval and postlarval development

✍ Scribed by Janine L. Gorgels-Kallen; Johanna T. A. Meij

Publisher: John Wiley and Sons
Year: 1985
Tongue: English
Weight: 926 KB
Volume: 183
Category: Article
ISSN: 0362-2525
DOI: 10.1002/jmor.1051830204

No coin nor oath required. For personal study only.

✦ Synopsis

Immunocytochemical investigation of the eyestalks of the larval and postlarval stages of the crayfish Astacus letodactylus, using an anti-Astacus-CHH serum, shows that immunopositive staining starts in the immediate posthatching larval stage, in neurosecretory cells of the medulla terminalis ganglionic X-organ (MTGX), in an MTGX-sinus gland tract, and in part of the axon terminals of the sinus gland. The number of these immunopositive cells increases during postlarval development. Neurosecretory granules belonging to distinct axon terminals of the neurohemal region show immunostaining. The mean diameter of the stained granules increases during postlarval development. The hemolymph glucose concentration in adult crayfish increases after injection of larval eyestalks.

📜 SIMILAR VOLUMES

Presence and development of a sensory fo

Presence and development of a sensory formation in the eyestalk of the crayfish, Astacus leptodactylus (Nordmann, 1842), during its embryonic, larval and adult life

✍ François van Herp; Chantal Bellon-Humbert; Adrianus J. M. De Groot 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 1004 KB

## Abstract A sensory papilla is described in the eyestalk of the crayfish Astacus leptodactylus during the last embryonic stages and during larval stages by light microscopy. This region was also investigated with the scanning electron microscopy, which showed sensory hairs in the postmolt adult;