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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v36.i4.90
9 pages

Dynamics of Activity of Hydrolases, Level of Protein and Titer of Lectine in Trout Embryo Under Effect of Pathogenic Fungi

O. N. Davydov
I. I. Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine
L. Ya. Kurovskaya
Institute of Zoology National Academy of Sciences of Ukraine Kyiv, Ukraine
I. A. Balakhnin
I. I. Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine


Periods of rise and decrease of activity of hydrolases and content of protein and lysozyme are observed from the moment of fertilization of spawn of Donaldson's trout until the appearance of larvae. The dynamics of proteolytic and lipase activities in healthy embryos and those infected by saprolegnia fungi (Saprolegniomycota) reveal reverse correlation. As for amylolytic and phosphatase activities, correlation coefficients are not significant, and a positive correlation was found for the content of lysozyme. The data obtained testify to negative influence of saprolegnia fungi on the development of trout during embryogenesis.

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