Avirulent strain of Colletotrichum induces a systemic resistance in strawberry

Authors
Salazar, Sergio Miguel; Grellet Bournonville, Carlos Froilan; Chalfoun, Nadia Regina; Castagnaro, Atilio Pedro; Diaz Ricci, Juan Carlos
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
Strawberry plants exposed to an avirulent isolate of Colletotrichum fragariae acquired strong resistance against a virulent strain of C. acutatum. Biochemical, morphological and molecular markers indicated that the strong defence response was associated with an oxidative burst and a transient accumulation of salicylic acid (SA). A maximum accumulation of H2O2 and O2 − was observed 8 h after inoculation (hai), callose was detected 48 hai, and a peak of SA was observed 48 hai. Biochemical and phytopathogenic analyses carried out in non-treated tissues revealed that the defence response was systemic and remained fully active 60 days after the first inoculation. Experiments also showed that the resistance acquired by mother plants after the inoculation with the avirulent isolate could be passed to daughter plants through runners. Further characterization of the induced systemic resistance showed that the resistance was not only effective against a virulent strain of C. acutatum but also against Botrytis cinerea.
EEA Famaillá
Fil: Salazar, Sergio Miguel. INTA. Estación Experimental Agropecuaria Famaillá; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Grellet Bournonville, Carlos Froilan. Provincia de Tucumán. Ministerio de Desarrollo Productivo. Estación Experimental Agroindustrial; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Chalfoun, Nadia Regina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología; . Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Castagnaro, Atilio Pedro. Gobierno de Tucumán. Ministerio de Desarrollo Productivo. Estación Experimental Agroindustrial Obispo Colombres; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Instituto de Tecnología Agroindustrial del Noroeste Argentino; Argentina
Fil: Diaz Ricci, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina.
Source
European Journal of Plant Pathology 135 (4) : 877–888 (April 2013)
Subject
Fresa
Fragaria ananassa
Enfermedades de las Plantas
Colletotrichum
Antracnosis
Colletotrichum acutatum
Resistencia a la Enfermedad
Strawberries
Plant Diseases
Anthracnosis
Disease Resistance
Frutilla
Colletotrichum fragariae
Access level
Restricted access
License
Repository
INTA Digital (INTA)
Institution
Instituto Nacional de Tecnología Agropecuaria
OAI Identifier
oai:localhost:20.500.12123/5341