Abstract
A method has been developed for the analysis of the induction of cbh1 gene transcription in the filamentous fungus Penicillium verruculosum after treatment with mono- and oligosaccharides. The method makes it possible to obtain mRNA, which encodes cellobiohydrolase 1 (CBH1), in an amount sufficient for RT-qPCR. Citrate, a compound that does not cause carbon catabolite repression, was used as a carbon source. It was shown for the first time that xylose, gentiobiose, and, mainly, cellobiose induce the expression of the cbh1 gene in P. verruculosum, while sophorose and a mixture of xylooligosaccharides with a degree of polymerization of 3–5 most likely serve as precursors of inducers.
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The work was supported by the Russian Foundation for Basic Research (project no.18-29-07070).
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Abbreviations: CBH1—cellobiohydrolase 1; CF—culture fluid; COS—cellooligosaccharides; EDTA—ethylenediaminetetraacetate; HPLC—high-performance liquid chromatography; MCC—microcrystalline cellulose; MCC-AO—active orange-stained MCC; RT-qPCR—reverse transcription quantitative real time polymerase chain reaction; SDS—sodium dodecyl sulfate; XOS—xylooligosaccharide.
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Kislitsin, V.Y., Chulkin, A.M., Zorov, I.N. et al. Influence of Mono- and Oligosaccharides on cbh1 Gene Transcription in the Filamentous Fungus Penicillium verruculosum. Appl Biochem Microbiol 57, 925–932 (2021). https://doi.org/10.1134/S0003683821090040
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DOI: https://doi.org/10.1134/S0003683821090040