Open AccessA polymer with a backbone of 3‐deoxy‐ d ‐ glycero ‐ d ‐ galacto ‐non‐2‐ulopyranosonic acid, a teichuronic acid, and a β‐glucosylated ribitol teichoic acid in the cell wall of plant pathogenic Streptomyces sp. VKM Ac‐2124
Author(s) -
Shashkov Alexander S.,
Kosmachevskaya Larisa N.,
Streshinskaya Galina M.,
Evtushenko Lyudmila I.,
Bueva Olga V.,
Denisenko Viktor A.,
Naumova Irina B.,
Stackebrandt Erko
Publication year - 2002
Publication title -
european journal of biochemistry
Language(s) - English
Resource type - Journals
eISSN - 1432-1033
pISSN - 0014-2956
DOI - 10.1046/j.1432-1033.2002.03274.x
Subject(s) - teichoic acid , cell wall , strain (injury) , chemistry , polymer , polysaccharide , bacteria , disaccharide , biopolymer , bacterial cell structure , biochemistry , stereochemistry , microbiology and biotechnology , organic chemistry , biology , peptidoglycan , genetics , anatomy
Structures of cell wall anionic polymers of the strain Streptomyces sp. VKM Ac‐2124, a causative agent of potato scab, which is phylogenetically the closest to plant pathogenic species S. setonii and S. caviscabies , were studied. The strain contains three anionic glycopolymers, viz., a teichuronic acid with a disaccharide repeating unit →6)‐α‐ d ‐Glc p ‐(1→4)‐β‐ d ‐Man p NAc3NAcA‐(1→, a β‐glucosylated polymer of 3‐deoxy‐ d ‐ glycero ‐ d ‐ galacto ‐non‐2‐ulopyranosonic acid (Kdn), and a β‐glucosylated 1,5‐poly(ribitol phosphate). The strain studied is the second representative of plant pathogenic streptomycetes inducing potato scab disease, the cell wall anionic polymers of which were shown to contain a Kdn‐polymer. Presumably, the presence of Kdn‐containing structures in the surface regions of pathogens is essential for their efficient attachment to host plant cells.