ArticleFolia microbiologica2013
Establishment of an efficient RNA silencing system in Trichoderma koningii using DsRed as a reporter.
Article in Folia microbiologica, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors at 3 institutions in 2 countries.
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Abstract
We aimed to establish an efficient RNA interference (RNAi) system in the industrially important filamentous fungus Trichoderma koningii using the DsRed protein as a reporter of the silencing process. To accomplish this, a DsRed expression cassette was transformed into T. koningii, and a recombinant strain that stably expressed DsRed was obtained. Next, a vector-directing expression of a DsRed hairpin RNA was constructed and transformed into the T. koningii recipient strain. Approximately 79 % of transformants displayed a decrease in DsRed fluorescence, and expression of DsRed in some transformants appeared to be fully suppressed. Characterization of randomly selected transformants by genomic DNA PCR analysis, real-time PCR quantification, and western blot confirmed downregulation of gene expression at different levels. The RNA silencing approach described here for T. koningii is effective, and the DsRed reporter gene provides a convenient tool for identification of silenced fungal transformants by their DsRed fluorescence compared to the control strain. The results of this study demonstrate the power of RNAi in T. koningii, which supports the use of this technology for strain development programs and functional genomics studies in industrial fungal strains.
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