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Título

Menadione sodium bisulphite: a novel plant defence activator enhances local and systemic resistance to infection by Leptosphaeria maculans in oilseed rape

AutorBorges, Andrés A. ; Cools, H. J.; Lucas, John A.
Palabras claveAscorbate peroxidase
Brassica napus
Induced resistance
Menadione sodium bisulphite
Pathogenesis-related protein 1
Redox state
Fecha de publicación31-jul-2003
EditorBritish Society for Plant Pathology
Blackwell Publishing
CitaciónPlant Pathology 52(4): 429-436 (2003)
ResumenPretreatment of the first true leaves of oilseed rape plants (Brassica napus cv. Bristol) with menadione sodium bisulphite (MSB) locally and systemically induced resistance, as shown by reduced lesion size and number, to infection by the fungal pathogen Leptosphaeria maculans, the causal agent of stem canker. Using a known systemic activator of salicylic acid-dependent PR-1 induction, acibenzolar-S-methyl (BTH; S-methylbenzo[1,2,3]thiadiazole-7-carbothiate) as a comparison, real-time PCR expression analysis of genes encoding a pathogenesis-related protein 1 (PR-1) and an ascorbate peroxidase (APX) demonstrated a systemic enhancement of APX expression in MSB-pretreated plants, with no effect on PR-1 expression, suggesting augmented reactive oxygen species production in MSB-pretreated plants. The results demonstrate MSB to be an effective resistance activator in oilseed rape, and potentially useful for the control of stem canker.
Descripción8 pages, 5 figures, 4 tables.-- Printed version published Aug 2003.
Versión del editorhttp://dx.doi.org/10.1046/j.1365-3059.2003.00877.x
URIhttp://hdl.handle.net/10261/14312
DOI10.1046/j.1365-3059.2003.00877.x
ISSN0032-0862
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