ePrints

Serotonin-immunoreactive neurones in the visual system of the praying mantis: An immunohistochemical, confocal laser scanning and electron microscopic study

Lookup NU author(s): Dr Gerd Leitinger

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.

Abstract

The distribution, number, and morphology of serotonin-immunoreactive (5- HTi) neurones in the optic lobe of the praying mantis Tenodera sinensis were studied using conventional microscopy and confocal laser scanning microscopy. Five or six 5-HTi neurones connect the lobula complex with the medulla, and at least 50 5-HTi neurones appear to be confined to the medulla. In addition, a few large 5-HTi processes from the protocerebrum supply the lobula complex, and two large 5-HTi processes from the protocerebrum ramify in the medulla and lamina, where they show wide field arborisations. In order to provide a basis for understanding the action of serotonin in the lamina, the ultrastructure of its 5-HTi terminals was examined by conventional and immunohistochemical electron microscopy. The 5-HTi profiles were filled with dense core vesicles and made synapses. Output synapses from 5-HTi profiles outnumbered inputs by about 3 to 1. The terminals of the 5-HTi neurones were in close contact with cells of various types, including large monopolar cells, but close apposition to photoreceptor terminals was rare, and no synapses were found between 5-HTi terminals and photoreceptor terminals.

Publication metadata

Author(s): Leitinger G, Pabst MA, Kral K

Publication type: Article

Publication status: Published

Journal: Brain Research

Year: 1999

Volume: 823

Issue: 1-2

Pages: 11-23

Print publication date: 18/03/1999

ISSN (print): 0006-8993

ISSN (electronic): 1872-6240

Publisher: Elsevier BV

URL: http://dx.doi.org/10.1016/S0006-8993(98)01339-0

DOI: 10.1016/S0006-8993(98)01339-0

PubMed id: 10095007

Altmetrics

Share