[Features of lysozyme content in cods (order Gadiformes) and flatfish (order Pleuronectiformes)].
The content of lysozyme as an indicator of nonspecific immunity in kidney, liver, spleen, and blood serum in 8 fish species of the order Gadiformes and the order Pleuronectiformes was analyzed. The Gadiformes are characterized by a very low level of enzyme or the absence of its activity in individual organs and serum, regardless of the fish habitat location. The Pleuronectiformes demonstrated diversity in content and distribution of lysozyme in the body of various fish species. Two plaice species with the unique distribution inhabiting the Sea of Okhotsk were found. This feature is due, first, to the highest lysozyme content in serum of the previously studied fish; second, to the 2-3-fold excess of the enzyme content in serum as compared with the studied immunocompetent organs. The obtained results confirm the opinion about the existence of various related groups among fishes which essentially differ in the lysozyme role in nonspecific immunity.
T A
TA
Subbotkina
M F
MF
Subbotkin
D000818:Animals; D029941:Fish Proteins / Q000276:immunology / Q000378:metabolism*; D005412:Flatfishes / Q000276:immunology / Q000378:metabolism*; D048388:Gadiformes / Q000276:immunology / Q000378:metabolism*; D007113:Immunity, Innate / Q000502:physiology*; D009113:Muramidase / Q000276:immunology / Q000378:metabolism*; D009928:Organ Specificity / Q000502:physiology; D013045:Species Specificity
D029941:Fish Proteins; D009113:Muramidase