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Egg-laying-hormone immunoreactivity in the neural ganglia and ovary of Haliotis asinina Linnaeus

journal contribution
posted on 2005-11-01, 00:00 authored by P Saitongdee, S Apisawetakan, N Anunruang, T Poomthong, Peter Hanna, P Sobhon
Immunoreactivity against the abalone egg-laying hormone (aELH) was detected in the fine granules of type 1 and 2 neurosecretory (NS) cells, neurites in the neuropil, and blood sinuses in the connective tissue sheath of the cerebral, pleuropedal, and visceral ganglia of the tropical abalone, Haliotis asinina Linnaeus. The number of positive NS cells, and the intensity of staining in the ganglia, varied and might be related to the stage of ovarian cycle. At any stage, positive cells were most numerous in the pleuropedal, and least numerous in the visceral ganglion. In addition, several cells of the statocyst and associated nerves also exhibited the immunoreactivity. In the ovary, the most intense reactivity was detected in the follicular and granular cells adjacent to mature oocytes, in the trabeculae and the ovarian capsule. The cytoplasm of mature oocytes was also moderately stained. The results indicate that the cerebral, pleuropedal, and visceral ganglia are the main sites of aELH-producing cells. The ovary may also produce aELH locally.

History

Journal

Invertebrate neuroscience

Volume

5

Issue

3-4

Pagination

165 - 172

Publisher

Springer-Verlag

Location

Berlin, Germany

ISSN

1354-2516

eISSN

1439-1104

Language

eng

Notes

Published online: 1 April 2005

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2005, Springer-Verlag

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