Impact of UV-C radiation combined with biocontrol agents on the susceptibility of strawberry plants to <em>Botrytis cinerea</em>
2018
Forges, Marine | Charles, Florence | Pascal, Michel | Aarrouf, Jawad | Bardin, Marc | Unité de Pathologie Végétale (PV) ; Institut National de la Recherche Agronomique (INRA) | Démarche intégrée pour l'obtention d'aliments de qualité (UMR Qualisud) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | PhD scholarship (TERSYS Research Federation; University of Avignon, France) | Universitat de Lleida (UdL). ESP. | Instituto de Investigación y Tecnología Agroalimentaria (IRTA). ESP. | International organisation for biological and integrated control (IOBC).
voir l'article correspondant au poster : https://prodinra.inra.fr/record/428035
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显示更多 [+] 显示较少 [-]英语. In order to enhance biocontrol efficacy against plant diseases, the combination of different control methods together with a given biocontrol agent can be achieved. In this study we have tested the effect of combining UV-C radiation with the application of biocontrol agents <em>(Bacillus subtilis</em> and <em>Gliocladium catenulatum</em> based products) against <em>Botrytis cinerea</em> on strawberry. We hypothesize that UV-C radiation applied on plants previously to biocontrol treatment, in addition to its induced resistance effect, will somehow disinfect leaves thus limiting the competition of inoculated biocontrol agents with the phyllosphere microorganisms and then promoting its development and its efficacy. We have shown that, despite the confirmed germicidal effect of UV-C radiation, this treatment applied on plants before treatment with biocontrol agent has no effect on the level of efficacy of the biocontrol agents or even it tends to lower their efficacy. Work is in progress to understand mechanisms involved and to evaluate the effect of this combination of treatments on other plant species.
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