Selection of Clonostachys rosea isolates from Brazilian ecosystems effective in controlling Botrytis cinerea

dc.creatorNobre, Sérgio A. M.
dc.creatorMaffia, Luiz Antônio
dc.creatorMizubuti, Eduardo S. G.
dc.creatorCota, Luciano Viana
dc.creatorDias, Ana Paula S.
dc.date2018-12-13T13:10:37Z
dc.date2018-12-13T13:10:37Z
dc.date2005-08
dc.date.accessioned2023-09-27T21:46:40Z
dc.date.available2023-09-27T21:46:40Z
dc.identifier1049-9644
dc.identifierhttps://doi.org/10.1016/j.biocontrol.2005.04.011
dc.identifierhttp://www.locus.ufv.br/handle/123456789/22778
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8965984
dc.descriptionClonostachys spp. were isolated from soil samples, and living and dead leaves of different plant species. Twelve isolates which sporulated well when cultured on agar media were compared regarding the capacity of establishing and suppressing Botrytis cinerea in leaves of Rosa hybrida ‘Sandra,’ Fragaria × ananassa ‘Dover,’ Lycopersicon esculentum ‘Kada,’ and Eucalyptus globulus. The isolates established in leaves of each plant species, but leaf area with conidiophores (SFCA) varied with the stage of leaf development. In rose, SFCA varied from 3.0 to 13.9% on senescing leaves and 3.4 to 10.0% on green leaves. SFCA was higher in young leaves of E. globulus and tomato (1.4–15.6% and 1.4–8.0%, respectively) than on senescing leaves (0.8–3.5% and 1.0–5.2%, respectively). In strawberry, SFCA varied from 0.7 to 6.2% on completely expanded leaves. Clonostachys rosea isolates reduced B. cinerea sporulation on leaves of rose (81.0–97.4% reduction), strawberry (87.6–96.8%), E. globulus (63.7–89.7%), and tomato (100% reduction). Four isolates of C. rosea were selected based on high levels of SFCA and suppression of B. cinerea. When leaf discs of the four hosts inoculated with these C. rosea isolates were challenged with isolates of B. cinerea of variable levels of aggressiveness, SFCA and pathogen suppression varied with the combination. Efficiency of C. rosea isolates in suppressing sporulation of B. cinerea varied among hosts but was always above 80%. The four selected Brazilian isolates of C. rosea are potential biocontrol agents for Botrytis blight management in Brazilian agricultural systems.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherBiological Control
dc.relationVolume 34, Issue 2, Pages 132- 143, August 2005
dc.rights2005 Elsevier Inc. All rights reserved.
dc.subjectBiological control
dc.subjectAntagonists
dc.subjectGliocladium roseum
dc.subjectBotrytis blight
dc.subjectFitness
dc.titleSelection of Clonostachys rosea isolates from Brazilian ecosystems effective in controlling Botrytis cinerea
dc.typeArtigo


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