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- W590858585 abstract "Fungal plant pathogens produce more than 70% of all major crop diseases and destroy 15% of global agricultural production through yield losses and mycotoxin contamination, making them by far the most harmful class of plant pathogens. Fusarium is a cosmopolitan genus of filamentous ascomycete fungi that includes many toxin-producing plant pathogens of agricultural importance [1]. Mycotoxin contamination of agricultural products makes them unsuitable for food or feed. As phytopathogens, fusaria employ a broad range of infection strategies and host specificity varies among Fusarium species. The ubiquitous soil-borne F. oxysporum causes vascular wilt disease in over 100 different plant species and it is also an emerging pathogen of humans that can cause invasive infections in immunocompromised patients [2]. Research in our laboratory focuses on secondary metabolites produced by endophytic fungi, which live in plants without provoking disease symptoms. We showed that the endophyte Paraconiothyrium variabile, when co-cultured with F. oxysporum, has an antagonistic growth effect on the phytopathogen and actively suppresses the production of beauvericin, a mycotoxin of F. oxysporum involved in virulence [3]. Our study also showed that the oxylipin 13-oxo-9,11-octadecadienoic acid (13-oxo-ODE) is overproduced during this antagonistic interaction and is responsible for over 50% of beauvericin suppression. The genome sequencing of the endophyte P. variabile is in progress and we have already established a genetic transformation system in this fungus. Using molecular approaches, we are currently trying to elucidate the biosynthesis of the 13-oxo-ODE oxylipin in P. variabile and its mode of action on beauvericin regulation in F. oxysporum." @default.
- W590858585 created "2016-06-24" @default.
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- W590858585 date "2015-06-01" @default.
- W590858585 modified "2023-09-30" @default.
- W590858585 title "Paraconiothyrium variabile , an ascomycete endophyte, suppresses mycotoxin production in the plant pathogen Fusarium oxysporum" @default.
- W590858585 cites W2002156761 @default.
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- W590858585 doi "https://doi.org/10.1016/j.mycmed.2015.02.005" @default.
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