Induction of resistance to fire blight in apple (Erwinia amylovora)

J.P. Paulin, R. Chartier, M. Tharaud, C. Heintz, V. Karniewicz and M.N. Brisset
Additional contact information
J.P. Paulin: UMR Pathologie Végétale INRA/INH/UA, Centre d'Angers, 49071 Beaucouzé Cedex, France * Tel. +33 2 4122 5700, Fax: +33 2 4122 5705, E-mail: paulin@angers.inra.fr
R. Chartier: UMR Pathologie Végétale INRA/INH/UA, Centre d'Angers, 49071 Beaucouzé Cedex, France * Tel. +33 2 4122 5700, Fax: +33 2 4122 5705, E-mail: paulin@angers.inra.fr
M. Tharaud: UMR Pathologie Végétale INRA/INH/UA, Centre d'Angers, 49071 Beaucouzé Cedex, France * Tel. +33 2 4122 5700, Fax: +33 2 4122 5705, E-mail: paulin@angers.inra.fr
C. Heintz: UMR Pathologie Végétale INRA/INH/UA, Centre d'Angers, 49071 Beaucouzé Cedex, France * Tel. +33 2 4122 5700, Fax: +33 2 4122 5705, E-mail: paulin@angers.inra.fr
V. Karniewicz: UMR Pathologie Végétale INRA/INH/UA, Centre d'Angers, 49071 Beaucouzé Cedex, France * Tel. +33 2 4122 5700, Fax: +33 2 4122 5705, E-mail: paulin@angers.inra.fr
M.N. Brisset: UMR Pathologie Végétale INRA/INH/UA, Centre d'Angers, 49071 Beaucouzé Cedex, France * Tel. +33 2 4122 5700, Fax: +33 2 4122 5705, E-mail: paulin@angers.inra.fr

Plant Protection Science, 2002, vol. 38, issue SI1-6thConfEFPP, S126-S127

Abstract: Apple genotypes show different levels of resistance to fire blight caused by the bacterium E. amylovora. This resistance is considered to be polygenic, thus relying on a number of defense mechanisms. On the assumption that in susceptible genotypes these defenses may be present but not activated during the infection process, we attempted their induction by various abiotic and biotic elicitors. Two kinds of experiments were performed in the greenhouse and in the orchard: i) evaluation after controlled inoculation of the level of protection conferred to the plant by each elicitor and ii) investigation of various defense responses potentially involved in the protection. Results showed that some elicitors provided a level of overall protection of about 50% in the orchard while higher levels may be obtained on seedlings in the greenhouse. The comparison of some defense responses in protected and unprotected treated plants showed that i) elicitation of defense is not necessarily associated with control of fire blight and that ii) some responses at least may be associated with the observed protection.

Keywords: defense inducers; bacterial diseases; control; resistance mechanisms (search for similar items in EconPapers)
Date: 2002
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://pps.agriculturejournals.cz/doi/10.17221/10335-PPS.html (text/html)
http://pps.agriculturejournals.cz/doi/10.17221/10335-PPS.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:38:y:2002:i:si1-6thconfefpp:id:10335-pps

DOI: 10.17221/10335-PPS

Access Statistics for this article

Plant Protection Science is currently edited by Ing. Eva Karská, (Executive Editor PPS)

More articles in Plant Protection Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().