Heterologous Expression of Secondary Metabolite Genes in Trichoderma reesei for Waste Valorization

verfasst von

Mary L. Shenouda, Maria Ambilika, Elizabeth Skellam, Russell J. Cox

Abstract

Trichoderma reesei (Hypocrea jecorina) was developed as a microbial cell factory for the heterol-ogous expression of fungal secondary metabolites. This was achieved by inactivation of sorbicillinoid biosynthesis and construction of vectors for the rapid cloning and expression of heterologous fungal biosynthetic genes. Two types of megasynth(et)ases were used to test the strain and vectors, namely a non-reducing polyketide synthase (nr-PKS, aspks1) from Acremonium strictum and a hybrid highly-reducing PKS non-ribosomal peptide synthetase (hr-PKS-NRPS, tenS + tenC) from Beauveria bassiana. The resulting engineered T. reesei strains were able to produce the expected natural products 3-methylorcinaldehyde and pretenellin A on waste materials including potato, orange, banana and kiwi peels and barley straw. Developing T. reesei as a heterologous host for secondary metabolite production represents a new method for waste valorization by the direct conversion of waste biomass into secondary metabolites.

Organisationseinheit(en)

Institut für Mikrobiologie
Institut für Organische Chemie

Typ

Artikel

Journal

Journal of Fungi

Band

8

Publikationsdatum

04.2022

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Ökologie, Evolution, Verhaltenswissenschaften und Systematik, Pflanzenkunde, Mikrobiologie (medizinisch)

Elektronische Version(en)

https://doi.org/10.3390/jof8040355 (Zugang: Offen)