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dc.contributor.authorCarrero-Carrón, Irenees_ES
dc.contributor.authorTrapero Casas, José Luises_ES
dc.contributor.authorOlivares-García, Concepciónes_ES
dc.contributor.authorMonte, Enriquees_ES
dc.contributor.authorHermosa, Rosaes_ES
dc.contributor.authorJiménez-Díaz, Rafael M.es_ES
dc.identifier.citationCrop Protection 88: 45-52 (2016)es_ES
dc.description.abstractVerticillium wilt caused by a highly virulent, defoliating (D) pathotype of Verticillium dahliae is threatening olive production in Spain and other Mediterranean countries. This disease must be managed by an integrated strategy, in which biocontrol agents can play an important role. We have investigated the potential of Trichoderma asperellum strains for antagonism against V. dahliae and suppression of Verticillium wilt of olive caused by the D pathotype. First, we tested the antagonistic potential of T. asperellum strains Bt2, Bt3 and T25 against six V. dahliae isolates, four of the D and two of the nondefoliating (ND) pathotypes, in different in vitro assays. All T. asperellum strains overgrew the colonies of all V. dahliae isolates to a similar extent. However, extracellular compounds from strains Bt3 and T25 showed higher anti-V. dahliae activities than those of Bt2 in membrane assays. Also, growth of Bt2 was reduced by ND V. dahliae whereas that of Bt3 and T25 was not affected by V. dahliae-secreted compounds. In planta assays using strains Bt3 and T25, and ’Picual’ olive plants, showed that the two T. asperellum strains significantly reduced the severity of symptoms and the standardized area under the disease progress curve caused by highly virulent D V. dahliae, but not the final disease incidence. Strain T25 significantly increased growth of ‘Picual’ plants and displayed higher ability for colonizing the olive rhizosphere and establishing endophytic infection in olive roots than Bt3.es_ES
dc.description.sponsorshipThis work was supported by projects from the “Consejería de Innovación, Ciencia y Empresa, Regional Government of Andalusia (P10-AGR 6082) and the Spanish Government MINECO (AGL2012-40041-C02), and co-financed with FEDER funds from the European Union. ICC was supported by a predoctoral fellowship of CICE, Regional Government of Andalusia (project P10-AGR 6082).es_ES
dc.subjectBiological controles_ES
dc.subjectAntaGrowth promotiongonismes_ES
dc.subjectRhizosphere colonizationes_ES
dc.subjectOlea europaeaes_ES
dc.subjectPicual olivees_ES
dc.titleTrichoderma asperellum is effective for biocontrol of Verticillium wilt in olive caused by the defoliating pathotype of Verticillium dahliaees_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderJunta de Andalucíaes_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderEuropean Commissiones_ES
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