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    • Quel comportement de développement adoptent les rameaux de la vigne après une gelée printanière ?Closed access 

      29 avril 2021, LOUVIEAUX, Julien; Rollinat, Alix; Stalport, Anouck; MAHIEU, Olivier, HE CondorcetCARAH
      Article scientifique
      L'épisode gélif que nous avons connu en ce début avril nous rappelle combien la météo peut impacter les cultures, notamment fruitières et viticoles. Un tel phénomène s'est également produit l'année dernière, en mai, alors que les vignes se trouvaient à un stade particulièrement sensible de leur développement. À cette occasion, le Carah a observé et analysé comment les différents cépages de son ...

    • Systemic resistance induced by Bacillus lipopeptides in Beta vulgaris reduces infection by the rhizomania disease vector Polymyxa betaePeer reviewedOpen access 

      19 décembre 2012, DESOIGNIES, Nicolas; Schramme, Florence; Ongena, Marc; Legrève, Anne, HE Condorcet
      Article scientifique
      The control of rhizomania, one of the most important diseases of sugar beet caused by the Beet necrotic yellow vein virus, remains limited to varietal resistance. In this study, we investigated the putative action of Bacillus amylolequifaciens lipopeptides in achieving rhizomania biocontrol through the control of the virus vector Polymyxa betae. Some lipopeptides that are produced by bacteria, ...

    • Use of self-organizing map to analyze images of fungi colonies grown from Triticum aestivum seeds disinfected by ozone treatmentPeer reviewedOpen access 

      16 octobre 2012, MARIQUE, Thierry; ALLARD, Olivier; SPANOGHE, Martin, HE CondorcetCARAH
      Article scientifique
      We submitted to ozone treatment Triticum aestivum (common wheat) seeds severely contaminated by fungi. Fungi colonies developed when seeds were placed over malt agar medium in Petri dishes; Fusarium sp. and Alternaria sp. were identified. However, conventional colonies counting did not allow a clear assessment of the effect of ozone disinfection. We thus used self-organizing maps (SOMs) to perform ...

    • Versatile Antagonistic Activities of Soil-Borne Bacillus spp. and Pseudomonas spp. against Phytophthora infestans and Other Potato PathogensPeer reviewedOpen access 

      13 février 2018, Caulier, Simon; Gillis, Annika; Colau, Gil; Licciardi, Florent; Liépin, Maxime; DESOIGNIES, Nicolas; Modrie, Pauline; Legrève, Anne; Mahillon, Jacques; Bragard, Claude, HE Condorcet
      Article scientifique
      "The world potato is facing major economic losses due to disease pressure and environmental concerns regarding pesticides use. This work aims at addressing these two issues by isolating indigenous bacteria that can be integrated into pest management strategies." Extrait de l'abstract