Ontogeny of IgM and IgM-bearing cells in rainbow trout

Ontogeny of IgM and IgM-bearing cells in rainbow trout

We have studied the ontogenic development of immunoglobulin M (IgM) and of IgM-bearing cells in the rainbow trout, Oncorhynchus mykiss. Lymphocytes showing cytoplasmic IgM were first observed in embryos at 12 days before hatch (14°C). At this stage, no cells positive for surface IgM were present. Lymphocytes bearing surface IgM were observed at 8 days before hatch (14°C). Unfertilized trout eggs contained detectable amounts of IgM (11.2 ± 2.6 μg/g of egg weight), indicating that transfer of IgM from mother to embryo can occur in salmonids. The levels of IgM from whole fish increase slowly after the appearance of intraembryonic cells that express surface IgM. The amount of IgM/g of tissue peaks around hatch, but this parameter shows lower values up to 2 months after hatch. © 1993.

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Main Authors: Castillo, A., Sánchez, C., Dominguez, J., Kaattari, S. L., Villena, A. J.
Format: journal article biblioteca
Language:eng
Published: 1993
Online Access:http://hdl.handle.net/20.500.12792/5805
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spelling dig-inia-es-20.500.12792-58052020-12-15T09:55:05Z Ontogeny of IgM and IgM-bearing cells in rainbow trout Castillo, A. Sánchez, C. Dominguez, J. Kaattari, S. L. Villena, A. J. We have studied the ontogenic development of immunoglobulin M (IgM) and of IgM-bearing cells in the rainbow trout, Oncorhynchus mykiss. Lymphocytes showing cytoplasmic IgM were first observed in embryos at 12 days before hatch (14°C). At this stage, no cells positive for surface IgM were present. Lymphocytes bearing surface IgM were observed at 8 days before hatch (14°C). Unfertilized trout eggs contained detectable amounts of IgM (11.2 ± 2.6 μg/g of egg weight), indicating that transfer of IgM from mother to embryo can occur in salmonids. The levels of IgM from whole fish increase slowly after the appearance of intraembryonic cells that express surface IgM. The amount of IgM/g of tissue peaks around hatch, but this parameter shows lower values up to 2 months after hatch. © 1993. 2020-10-22T21:18:59Z 2020-10-22T21:18:59Z 1993 journal article http://hdl.handle.net/20.500.12792/5805 10.1016/0145-305X(93)90033-M eng Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ open access
institution INIA ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-inia-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del INIA España
language eng
description We have studied the ontogenic development of immunoglobulin M (IgM) and of IgM-bearing cells in the rainbow trout, Oncorhynchus mykiss. Lymphocytes showing cytoplasmic IgM were first observed in embryos at 12 days before hatch (14°C). At this stage, no cells positive for surface IgM were present. Lymphocytes bearing surface IgM were observed at 8 days before hatch (14°C). Unfertilized trout eggs contained detectable amounts of IgM (11.2 ± 2.6 μg/g of egg weight), indicating that transfer of IgM from mother to embryo can occur in salmonids. The levels of IgM from whole fish increase slowly after the appearance of intraembryonic cells that express surface IgM. The amount of IgM/g of tissue peaks around hatch, but this parameter shows lower values up to 2 months after hatch. © 1993.
format journal article
author Castillo, A.
Sánchez, C.
Dominguez, J.
Kaattari, S. L.
Villena, A. J.
spellingShingle Castillo, A.
Sánchez, C.
Dominguez, J.
Kaattari, S. L.
Villena, A. J.
Ontogeny of IgM and IgM-bearing cells in rainbow trout
author_facet Castillo, A.
Sánchez, C.
Dominguez, J.
Kaattari, S. L.
Villena, A. J.
author_sort Castillo, A.
title Ontogeny of IgM and IgM-bearing cells in rainbow trout
title_short Ontogeny of IgM and IgM-bearing cells in rainbow trout
title_full Ontogeny of IgM and IgM-bearing cells in rainbow trout
title_fullStr Ontogeny of IgM and IgM-bearing cells in rainbow trout
title_full_unstemmed Ontogeny of IgM and IgM-bearing cells in rainbow trout
title_sort ontogeny of igm and igm-bearing cells in rainbow trout
publishDate 1993
url http://hdl.handle.net/20.500.12792/5805
work_keys_str_mv AT castilloa ontogenyofigmandigmbearingcellsinrainbowtrout
AT sanchezc ontogenyofigmandigmbearingcellsinrainbowtrout
AT dominguezj ontogenyofigmandigmbearingcellsinrainbowtrout
AT kaattarisl ontogenyofigmandigmbearingcellsinrainbowtrout
AT villenaaj ontogenyofigmandigmbearingcellsinrainbowtrout
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