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DAO 45:153-154 (2001)
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Abstract
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Karyomegaly in Baryancistrus sp. (Loricaridae) from Amazonian Brazil
I. Paperna1,*, D. Di Cave2
1Department of Animal Sciences, Faculty of Agriculture of the Hebrew University of Jerusalem, Rehovot 76 100, Israel
2Cattedra di Parassitologia, Dipartimento di Sanita' pubblica e Biologia Cellulare, Universita degli Studi di Roma 'Tor Vergata', Via Tor Vergata 135, 00133 Rome, Italy
*E-mail: paperna@agri.huji.ac.il
ABSTRACT: Vesicular karyomegaly of the liver hepatocytes is described from Baryancistrus sp. (Loricaridae), in 3 out of 7 fish, collected from Rio Xingu in central Amazonian (neutral water) Brazil and kept about 2 wk in a holding facility fed with
acid water (pH 5.0 to 5.5). Altered cells also occurred in the gill epithelium. The vesicles in the liver were shown to contain a periodic acid-Schiff (PAS)-positive substance or residue.
KEY WORDS: Vesicular karyomegaly · Hepatocytes · PAS-positive residue · Gill epithelium · Baryancistrus sp. · Loricaridae · Brazil
Full text in pdf format
Published in DAO Vol.
45, No. 2
(2001) on June 20
ISSN: 0177-5103.
Copyright © Inter-Research, Oldendorf/Luhe, 2001
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