Glyco-conjugates as elicitors or suppressors of plant innate immunity.

摘要: Innate immunity is the first line of defense against invading microorganisms in vertebrates and only invertebrates plants. Bacterial glyco-conjugates, such as lipopolysaccharides (LPS) from outer membrane Gram-negative bacteria peptidoglycan (PGN) cell walls both Gram-positive bacteria, fungal oomycete glycoconjugates oligosaccharides derived wall components beta-glucan, chitin chitosan, have been found to act elicitors plant innate immunity. These conserved indispensable microbe-specific molecules are also referred microbe-associated molecular patterns (MAMPs). Other glyco-conjugates bacterial extracellular polysaccharides (EPS) cyclic glucan shown suppress immune responses, thus conversely promoting pathogenesis. MAMPs recognized by system though action pattern recognition receptors (PRRs). A greater insight into mechanisms MAMP description PRRs for different microbial will considerable impact on improvement health disease resistance. Here we review current knowledge about LPS PGN, chitosan suppressors EPS glucan, with particular reference chemical structures these molecules, involved their (where defined), possible underlying suppression.