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https://hdl.handle.net/1959.11/7517
Title: | Reaction of glucosinolate-myrosinase defence system in 'Brassica' plants to pathogenicity factor of 'Sclerotinia sclerotiorum' | Contributor(s): | Rahmanpour, Siamak (author); Backhouse, David (author) ; Nonhebel, Heather (author) | Publication Date: | 2010 | DOI: | 10.1007/s10658-010-9685-y | Handle Link: | https://hdl.handle.net/1959.11/7517 | Abstract: | The glucosinolate-myrosinase defence system, specific to Brassicales plants, produces toxic volatile compounds during mechanical injury or pathogen attack. The reaction of this system to oxalic acid, known as a pathogenicity factor of 'Sclerotinia sclerotiorum', is not fully understood. The hydrolysis of glucosinolates was studied at varying conditions in the presence of oxalic acid in the substrate. In a bioassay, colonies of the pathogen were exposed to volatiles from hydrated mustard powder used as a myrosinase and glucosinolate source. The glucosinolate-myrosinase (GSL-M) system was activated in the presence of oxalic acid at a concentration and pH similar to that expected in vivo. Volatile production was inhibited only when the pH fell to 3 or below. It is unlikely that oxalic acid plays a significant role in disarming the GSL-M system during infection of 'Brassica' hosts. | Publication Type: | Journal Article | Source of Publication: | European Journal of Plant Pathology, 128(4), p. 429-433 | Publisher: | Springer Netherlands | Place of Publication: | Netherlands | ISSN: | 1573-8469 0929-1873 |
Fields of Research (FoR) 2008: | 060704 Plant Pathology | Socio-Economic Objective (SEO) 2008: | 820502 Canola | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article |
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