title: Induction of phytoalexins in pigeonpea (Cajanus cajan) in response to inoculation with Fusarium udum and other treatments.
abstract: Cajanol accumulation was monitored in four cultivars of pigeonpea, Cajanus cajan (L) Millsp, after inoculation with 2 x 10(6) conidia ml-1 of Fusarium udum Butler. Rapid accumulation was observed only in wilt-resistant cultivar ICP 9145. Another wilt-resistant cultivar, ICP 8863, had low levels of cajanol similar to those in wilt-susceptible cultivars ICP 2376 and Malawi local, indicating that rapid cajanol accumulation is not positively correlated with resistance to wilt in pigeonpea. A comparison of various inducing agents showed live conidia of the pathogen to cause more rapid accumulation than the other agents.
authors.affiliation: Crop Protection Research Unit, Department of Agriculture, University of Reading, Reading RG6 2AT, UK. psmarley@rcl.nig.com
authors.forename: Paul S
authors.initials: PS
authors.lastname: Marley
authors.forename: Rory J
authors.initials: RJ
authors.lastname: Hillocks
mesh_terms: D036561:Cajanus / Q000737:chemistry / Q000378:metabolism* / Q000382:microbiology; D002855:Chromatography, Thin Layer; D005670:Fusarium / Q000254:growth & development*; D007113:Immunity, Innate; D007529:Isoflavones / Q000302:isolation & purification / Q000378:metabolism*; D010935:Plant Diseases / Q000382:microbiology; D010936:Plant Extracts / Q000302:isolation & purification / Q000378:metabolism*; D012717:Sesquiterpenes; D013729:Terpenes; D000094162:Phytoalexins
chemical_list: D007529:Isoflavones; D010936:Plant Extracts; D012717:Sesquiterpenes; D013729:Terpenes; C471767:cajanol; D000094162:Phytoalexins