Effect of the molecular weight of chitosan on its antiviral activity in plants View Full Text


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Article Info

DATE

2006-03

AUTHORS

S. N. Kulikov, S. N. Chirkov, A. V. Il’ina, S. A. Lopatin, V. P. Varlamov

ABSTRACT

The effect of the molecular weight of chitosan on its ability to suppress systemic infection of bean mild mosaic virus in bean (Phaseolus vulgaris L.) plants was studied. The enzymatic hydrolysate of low-molecular-weight chitosan was successively fractionated by ultrafiltration through membranes with decreasing pore size. In total, four chitosan fractions with a weight-average molecular weight varying from 1.2 to 40.4 kDa were obtained. It was shown that the treatments of bean plants with these fractions (chitosan concentration, 10 or 100 μg/ml) inhibited virus accumulation and systemic propagation. The degree of chitosan-induced antiviral resistance increased as the molecular weight of chitosan decreased. The monomers comprising the chitosan molecule—glucosamine and N-acetylglucosamine—exhibited no antiviral activity. More... »

PAGES

200-203

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s0003683806020165

DOI

http://dx.doi.org/10.1134/s0003683806020165

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1012003845


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