Oxalic-acid elicited resistance to Fusarium wilt in Lycopersicon esculentum Mill

I.H. Attitalla and S. Brishammar
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I.H. Attitalla: Department of Molecular Evolution, Uppsala University, SE-752 36 Uppsala, Sweden * Tel.: +46 18 471 2414, Fax: +46 18 471 6404, E-mail: idress.attitalla@ebc.uu.se
S. Brishammar: Department of Molecular Evolution, Uppsala University, SE-752 36 Uppsala, Sweden * Tel.: +46 18 471 2414, Fax: +46 18 471 6404, E-mail: idress.attitalla@ebc.uu.se

Plant Protection Science, 2002, vol. 38, issue SI1-6thConfEFPP, S128-S131

Abstract: Systemic induced resistance (SIR) in a plant enhances disease resistance to a broad spectrum of pathogens. Under climate chamber conditions, oxalic acid's ability to elicit SIR in tomato (Lycopersicon esculentum Mill.) against wilt caused by Fusarium oxysporum f.sp. lycopersici (Fol) was tested with a susceptible cultivar (Danish Export). Oxalic acid (OA) was sprayed onto the green part of the tomato plants, at concentrations 2.5, 5, 10, and 20 mM. Two days later, each plant was challenged with 10 ml of Fol suspension (106 conidia/ml) inoculated into the soil around the root system. After inoculation, disease incidence (DI) was quantified visually to assess SIR expression. OA-induced resistance (concentration-dependent) by otherwise susceptible tomato plants was obtained.

Keywords: oxalic acid; Lycopersicon esculentum Mill.; systemic induced resistance; Fusarium oxysporum f.sp. lycopersici (Fol) (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:38:y:2002:i:si1-6thconfefpp:id:10336-pps

DOI: 10.17221/10336-PPS

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