ONTOGENY OF IGM AND IGM-BEARING CELLS IN RAINBOW-TROUT

被引：82

作者：

CASTILLO, A

SANCHEZ, C

DOMINGUEZ, J

KAATTARI, SL

VILLENA, AJ

机构：

[1] UNIV LEON,DEPT BIOL CELULAR,E-24071 LEON,SPAIN

[2] CIT,INIA,DEPT SANIDAD ANIM,E-28012 MADRID,SPAIN

[3] OREGON STATE UNIV,DEPT MICROBIOL,CORVALLIS,OR 97331

来源：

DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY | 1993年 / 17卷 / 05期

关键词：

IMMUNOGLOBULIN M (IGM); B-CELLS; IMMUNOCOMPETENCE; ONTOGENY; TROUT; TELEOST;

D O I：

10.1016/0145-305X(93)90033-M

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

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-degrees-C). At this stage, no cells positive for surface IgM were present. Lymphocytes bearing surface IgM were observed at 8 days before hatch (14-degrees-C). Unfertilized trout eggs contained detectable amounts of IgM (11.2 +/- 2.6 mug/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.

引用

页码：419 / 424

页数：6

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