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Related Experiment Video

Updated: May 25, 2026

Biolistic Transformation of a Fluorescent Tagged Gene into the Opportunistic Fungal Pathogen Cryptococcus neoformans

Biolistic Transformation of a Fluorescent Tagged Gene into the Opportunistic Fungal Pathogen Cryptococcus neoformans

Published on: March 19, 2015

RNA interference in Cryptococcus neoformans.

Michael L Skowyra¹, Tamara L Doering

¹Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA.

Methods in Molecular Biology (Clifton, N.J.)

|February 14, 2012

Summary

This summary is machine-generated.

We developed two plasmid-based RNA interference (RNAi) strategies for gene silencing in Cryptococcus neoformans. These methods utilize hairpin RNA or separate sense/antisense strands to trigger sequence-specific messenger RNA degradation.

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Area of Science:

Molecular Biology
Genetics
Mycology

Background:

RNA interference (RNAi) is a conserved biological process for gene silencing.
Effective RNAi requires specific molecular tools for gene expression manipulation.
Cryptococcus neoformans is an important fungal pathogen requiring genetic study tools.

Purpose of the Study:

To develop and describe novel plasmid-based RNA interference (RNAi) strategies for gene silencing in Cryptococcus neoformans.
To provide versatile tools for functional genomic studies in C. neoformans.
To establish methods for evaluating RNAi efficacy and specificity.

Main Methods:

Development of two distinct plasmid vectors (pFrame and pIBB103) for RNAi induction.
Utilizing constitutive (ACT1) and inducible (GAL7) promoters for RNAi trigger synthesis.
Transformation of C. neoformans via electroporation and screening using a co-silenced sentinel gene.

Main Results:

Successful implementation of two plasmid-based RNAi strategies in C. neoformans.
Demonstrated sequence-dependent gene silencing through hairpin RNA or sense/antisense strand annealing.
Established a screening system for identifying effective RNAi clones.

Conclusions:

The developed plasmid vectors provide robust tools for RNAi-mediated gene silencing in C. neoformans.
These methods facilitate functional genomics and the study of gene function in this fungal species.
Guidelines for RNAi sequence selection and implementation are provided for researchers.