Antagonistic effect on TMV infectivity between poly-l-lysine and poly-l-arginine.

Tyihák, Ernő and Balázs, Ervin (1976) Antagonistic effect on TMV infectivity between poly-l-lysine and poly-l-arginine. ACTA PHYTOPATHOLOGICA ACADEMIAE SCIENTIARUM HUNGARICAE, 11. pp. 11-16. ISSN 0001-6780

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Abstract

Polylysine pretreatment of Xanthi-nc tobacco half leaves caused a reduction of TMV local lesions compared to the control. A similar polyarginine pretreatment resulted in an increase in local lesions. A mixture of the polycations used for pretreatment did not cause reduction or increase of the number of local lesions. a systemic host we demonstrated the same antagonistic effect of these two polycations. On the other hand we got similar results if we incubated the pure virus with polylysine or polyarginine. Therefore, these synthetic polycations could affected the replication of TMV in some way, perhaps through the pinocytosis mechanism, or membrane alterations are enhanced by basic polypeptides.

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