Antifungal activity of lipopeptides from bacillus XT1 CECT 8661 against Botrytis cinerea
Metadatos
Mostrar el registro completo del ítemAutor
Toral, Laura; Rodríguez, Miguel; Béjar Luque, María Victoria; Sampedro Quesada, María InmaculadaEditorial
Frontiers Media
Materia
Bacillus XT1 Lipopeptides Antifungal activity Botrytis cinerea Antioxidant activity
Fecha
2018-06-26Referencia bibliográfica
Toral L, Rodríguez M, Béjar V and Sampedro I (2018) Antifungal Activity of Lipopeptides From Bacillus XT1 CECT 8661 Against Botrytis cinerea. Front. Microbiol. 9:1315. [doi: 10.3389/fmicb.2018.01315]
Patrocinador
This study was supported by the European Project for Industrial Doctorates “H2020” (UGR-Ref. 4726), by the Ramón y Cajal Project (RYC-2014-15532) from MINECO and the Project Retos- Colaboración from MINECO (2015, RTC-2015-4121-2).Resumen
This work aims to explore the capacity of a Bacillus methylotrophicus (later heterotypic
synonym of Bacillus velezensis) strain named XT1 CECT 8661 against the necrotrophic
plant pathogen Botrytis cinerea and to identify the compounds responsible for its
activity. Q_TOF electrospray mass spectrometry analysis allows us to detect several
lipopeptides – surfactin, bacillomycin, and fengycin – in XT1 cultures. In vitro antibiosis
studies demonstrated the efficiency of the lipopeptide fraction for the inhibition of
fungal growth. In fact, microscopy studies (SEM/TEM) revealed, an alteration of the
morphology of the phytopathogen in interaction with lipopeptides, with resistance
structures appearing in the early stages of growth of the fungus. Our studies, carried out
with tomatoes, grapes, and strawberries have demonstrated the efficiency of Bacillus
XT1 CECT 8661 lipopeptides against B. cinerea infection and it capability to trigger
the antioxidant activity in fruit. Overall, the results of this study highlight the potential of
lipopeptides of this strain as an effective biological control agent against the colonisation
of B. cinerea.