Role of Candida albicans Tem1 in mitotic exit and cytokinesis.

SW Milne, J Cheetham, D Lloyd, S Shaw, K Moore, KH Paszkiewicz, SJ Aves, S Bates

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6 Citations (Scopus)

Abstract

Candida albicans demonstrates three main growth morphologies: yeast, pseudohyphal and true hyphal forms. Cell separation is distinct in these morphological forms and the process of separation is closely linked to the completion of mitosis and cytokinesis. In Saccharomyces cerevisiae the small GTPase Tem1 is known to initiate the mitotic exit network, a signalling pathway involved in signalling the end of mitosis and initiating cytokinesis and cell separation. Here we have characterised the role of Tem1 in C. albicans, and demonstrate that it is essential for mitotic exit and cytokinesis, and that this essential function is signalled through the kinase Cdc15. Cells depleted of Tem1 displayed highly polarised growth but ultimately failed to both complete cytokinesis and re-enter the cell cycle following nuclear division. Consistent with its role in activating the mitotic exit network Tem1 localises to spindle pole bodies in a cell cycle-dependent manner. Ultimately, the mitotic exit network in C. albicans appears to co-ordinate the sequential processes of mitotic exit, cytokinesis and cell separation.
Original languageEnglish
Pages (from-to)84-95
Number of pages12
JournalFungal Genetics and Biology
Volume69
Early online date25 Jun 2014
DOIs
Publication statusPublished - Aug 2014

Keywords

  • Mitotic exit
  • Cytokinesis
  • Cell cycle
  • Cell separation
  • Tem1
  • Candida albicans

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    Milne, SW., Cheetham, J., Lloyd, D., Shaw, S., Moore, K., Paszkiewicz, KH., Aves, SJ., & Bates, S. (2014). Role of Candida albicans Tem1 in mitotic exit and cytokinesis. Fungal Genetics and Biology, 69, 84-95. https://doi.org/10.1016/j.fgb.2014.06.007