Extracting Protoplasts from Filamentous Fungi Using Extralyse, An Enzyme Used in the Wine Industry

Area of Science:

• Mycology
• Molecular Biology
• Biotechnology

Background:

• Protoplast extraction is crucial for fungal research, enabling genetic and genomic studies.
• Discontinuation and high cost of traditional enzymes hinder protoplast protocol development.
• Filamentous ascomycetes are important in various industries but often lack robust molecular tools.

Purpose of the Study:

• To develop and present five efficient protoplast extraction protocols for key filamentous ascomycete species.
• To utilize an accessible and inexpensive enzyme cocktail, Extralyse, for fungal cell wall digestion.
• To provide a foundation for expanding molecular research capabilities in non-model fungi.

Main Methods:

• Developed five distinct protocols for protoplast isolation from specified fungal genera (Ceratocystis, Fusarium, Metarhizium, Ophiostoma, Sclerotinia).
• Employed Extralyse, a commercially available enzyme from the wine industry, for fungal cell wall degradation.
• Validated protocols across multiple species within the target genera.

Main Results:

• Successfully extracted viable protoplasts from Ceratocystis, Fusarium, Metarhizium, Ophiostoma, and Sclerotinia species.
• Demonstrated the efficacy of Extralyse as a cost-effective and reliable alternative to discontinued laboratory enzymes.
• Established standardized protocols applicable to a range of filamentous ascomycetes.

Conclusions:

• The presented protocols overcome limitations posed by enzyme availability and cost.
• These methods facilitate advanced molecular applications such as genome editing in diverse fungal species.
• The study provides a valuable resource for developing protoplast extraction techniques in other filamentous fungi, expanding their biotechnological and medical relevance.