title: [Elicitor activity of chitosan and arachidonic acid: their similarity and distinction].
abstract: Two elicitors-chitosan and arachidonic acid-induced the same defense responses in potatoes, stimulating the processes of wound reparation and inducing the formation of phytoalexins, inhibitors of proteinase, and active forms of oxygen. However, chitosan induced the defense potential of plant tissues at concentrations higher than those of arachidonic acid. The protective action of chitosan was defined by two parameters, i.e., the ability to induce the immune responses in plant tissues and to exhibit a toxic effect on the pathogen development, causing late blight and seedling blight, whereas the elicitor effect of arachidonic acid depended on its ability to induce the defense potential of plant tissues only.
authors.forename: N I
authors.initials: NI
authors.lastname: Vasiukova
authors.forename: N G
authors.initials: NG
authors.lastname: Gerasimova
authors.forename: G I
authors.initials: GI
authors.lastname: Chalenko
authors.forename: O L
authors.initials: OL
authors.lastname: Ozeretskovskaia
mesh_terms: D016718:Arachidonic Acid / Q000494:pharmacology*; D002374:Catalase / Q000378:metabolism; D048271:Chitosan / Q000494:pharmacology*; D005670:Fusarium / Q000502:physiology; D025301:Hyphae / Q000502:physiology; D055750:Phytophthora infestans / Q000502:physiology; D010935:Plant Diseases / Q000276:immunology* / Q000382:microbiology / Q000469:parasitology; D057865:Plant Immunity / Q000187:drug effects*; D017382:Reactive Oxygen Species / Q000378:metabolism; D012717:Sesquiterpenes / Q000378:metabolism*; D011198:Solanum tuberosum / Q000187:drug effects* / Q000276:immunology / Q000382:microbiology / Q000469:parasitology; D013170:Spores / Q000502:physiology; D000094162:Phytoalexins
chemical_list: D017382:Reactive Oxygen Species; D012717:Sesquiterpenes; D016718:Arachidonic Acid; D048271:Chitosan; D002374:Catalase; D000094162:Phytoalexins