Study of the Protective Activity of Chitosan Hydrolyzate Against Septoria Leaf Blotch of Wheat and Brown Spot of Tobacco

Chitosan hydrolyzate containing low-molecular-weight chitosan (≤24 kDa) and its oligomers (≤1.2 kDa) has been obtained via chemical depolimerization of high-molecular-weight chitosan by nitric acid. The fractions of the obtained chitosan hydrolyzate have been characterized by high performance gel pe...

Full description

Saved in:
Bibliographic Details
Published in:Applied biochemistry and microbiology 2018, Vol.54 (1), p.71-75
Main Authors: Shagdarova, B. Ts, Ilyina, A. V., Lopatin, S. A., Kartashov, M. I., Arslanova, L. R., Dzhavakhiya, V. G., Varlamov, V. P.
Format: Article
Language:English
Subjects:
Biochemistry
Biomedical and Life Sciences
Brown spot
Chitosan
Leaf blotch
Leaves
Life Sciences
Liquid chromatography
Medical Microbiology
Microbiology
Nitric acid
Oligomers
Proton magnetic resonance
Tobacco
Wheat
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Chitosan hydrolyzate containing low-molecular-weight chitosan (≤24 kDa) and its oligomers (≤1.2 kDa) has been obtained via chemical depolimerization of high-molecular-weight chitosan by nitric acid. The fractions of the obtained chitosan hydrolyzate have been characterized by high performance gel permeation chromatography and proton magnetic resonance. The test performed on detached leaves of wheat has shown that the hydrolyzate completely inhibits the development of Stagonospora nodorum , a casual agent of the septoria leaf blotch, at a concentration of 200 μg/mL. A similar test with detached tobacco leaves has shown that the hydrolyzate at a concentration of 100 μg/mL also inhibits the development of Alternaria longipes , which causes brown spot of tobacco, by 75%.
ISSN:0003-6838
1608-3024
DOI:10.1134/S0003683818010118