The structure of the exopolysaccharide fraction from Pseudomonas savastanoi strain ITM519 and the defence-response it induces in non-hosts plants
pv. nerii, strain ITM519, has a very complex highly branched structure consisting of fucose, galactose, Nacetylgalactosamine
and N-acetylglucosamine. EPS triggers a defence response in non-host plant cells. This capability
could be a consequence of the complex and heterogeneous structure of the molecule, part of which might mimic
elicitors produced in the plant–pathogen interaction.
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