Molecular transformation, gene cloning, and gene expression systems for filamentous fungi
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Abstract
This chapter discusses the molecular transformation, gene cloning, and gene expression systems for filamentous fungi. Molecular transformation involves the movement of discrete amounts of DNA into cells, the expression of genes on the transported DNA, and the sustainable replication of the transforming DNA. The ability to transform fungi is dependent on the stable replication and expression of genes located on the transforming DNA. Three phenomena observed in bacteria, that is, competence, plasmids, and restriction enzymes to facilitate cloning, were responsible for the development of molecular transformation in fungi. Initial transformation success with filamentous fungi, involving the complementation of auxotrophic mutants by exposure to sheared genomic DNA or RNA from wt isolates, occurred with low transformation efficiencies. In addition, it was difficult to retrieve complementing DNA fragments and isolate genes of interest. This prompted the development of transformation vectors and methods to increase efficiencies. The physiological studies performed with fungi indicated that the cell wall could be removed to generate protoplasts. It was evident that protoplasts could be transformed with significantly greater efficiencies than walled cells.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Molecular transformation, gene cloning, and gene expression systems for filamentous fungi |
| Series title | Applied Mycology and Biotechnology |
| DOI | 10.1016/S1874-5334(01)80010-1 |
| Volume | 1 |
| Year Published | 2001 |
| Language | English |
| Publisher | Elsevier |
| Publisher location | Amsterdam |
| Contributing office(s) | Western Fisheries Research Center |
| Description | 40 p. |
| First page | 199 |
| Last page | 238 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |