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Peculiarities of amino-acid composition of protein of plants affected with potato X-virus

Peculiarities of amino-acid composition of protein of plants affected with potato X-virus

Mikrobiol Zh [kyyiv] 29(4): 326-334

The results of determining total N and amino acid (AA)-composition of proteins of various plants affected with 3 strains of potato X-virus (PXV) which distinctly differ in virulence are presented. To find out the plant responces to viral infection stra-mony and potato varieties "Prieyekulsky early", "Magestic, Kameras I" were tested. The quantity of nitrogenous substances and AA-composi-tion of protein of the plants affected with PXV is of clearly pronounced individual nature for every plant and depends on intensity of viral infection progress and on the growth phases of the plants. Only 2 plants (stramony and "Priyekulsky early") were infected with the strains under study. A number of peculiar features is observed in both the dynamics of AA and the quantity of substances containing N. A certain dependence is established between AA-composition of pure preparations of the strains under study and protein of plants affected with them. As a rule, greater extent of AA in viral protein corresponds to its smaller content in total protein of the plants at the moment of the most intensive accumulation of the virus in them.

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Accession: 025214159

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PMID: 5619956

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