title: Preliminary study on phytoalexin induction in cucumber.
abstract: Inducer can induce new active composition and increase the content of the active composition in the plant. In this paper, we investigated the synthesis and accumulation of phytoalexin in cucumber seedlings which were induced by chemical inducer of the salicylic acid (SA) and physical inducer. Analyzed by experiment of antifungal activity, thin-layer chromatography (TLC) and high-performance liquid chromatography (HPLC), the result was that both SA and stress can induce the synthesis and accumulation of phytoalexin in cucumber seedlings. But the content of phytoalexin induced by SA was lower than it induced by stress. And in this paper, another conclusion was that the transduction of physical signal and the chemical signal in the plant depended on the adhesion between cell wall and plasma and active oxidative species producted by stimulation.
authors.affiliation: Key Lab for Biomechanics and Tissue Engineering Under the State Ministry of Education Chongqing University, Chongqing 400044, China.
authors.forename: Jinbo
authors.initials: J
authors.lastname: Wang
authors.forename: Bochu
authors.initials: B
authors.lastname: Wang
authors.forename: Hucheng
authors.initials: H
authors.lastname: Zhao
authors.forename: Baoju
authors.initials: B
authors.lastname: Li
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D002963:Cladosporium; D018553:Cucumis sativus / Q000737:chemistry / Q000378:metabolism*; D006861:Hydrogen Peroxide; D007202:Indicators and Reagents; D016877:Oxidants; D010935:Plant Diseases / Q000382:microbiology; D010936:Plant Extracts / Q000096:biosynthesis*; D018515:Plant Leaves / Q000737:chemistry; D012717:Sesquiterpenes; D013056:Spectrophotometry, Ultraviolet; D013314:Stress, Mechanical; D013729:Terpenes; D000094162:Phytoalexins
chemical_list: D007202:Indicators and Reagents; D016877:Oxidants; D010936:Plant Extracts; D012717:Sesquiterpenes; D013729:Terpenes; D006861:Hydrogen Peroxide; D000094162:Phytoalexins