The Role of Bgl2p in the Transition to Filamentous Cells During Biofilm Formation by Candida Albicans.
Mycoses(2016)
Abstract
The fungal pathogen Candida albicans undergoes a transition from yeast cells to filamentous cells that is related to its pathogenicity. The complex multicellular processes involved in biofilm formation by this fungus also include this transition. In this work, we investigated the morphological role of the Bgl2 protein ( Bgl2p) in the transition to filamentous cells during biofilm formation by C. albicans. Bgl2p has been identified as a beta-1,3-glucosyltransferase, and transcription of the CaBGL2 gene is upregulated during biofilm formation. We used scanning electron microscopy to observe the microstructure of a bgl2 null mutant during biofilm formation and found a delay in the transition to filamentous cells in the premature phase ( 24 hours) of biofilm formation. Deletion of the CaBGL2 gene led to a decrease in the expression of CPH2 and TEC1, which encode transcription factors required for the transition to the filamentous form. These findings indicate that Bgl2p plays a role in the transition to filamentous cells during biofilm formation by C. albicans.
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Key words
biofilm formation,Candida albicans,filamentous transition,glucosyltransferase
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