title: How peroxisomes partition between cells. A story of yeast, mammals and filamentous fungi.
abstract: Eukaryotic cells are subcompartmentalized into discrete, membrane-enclosed organelles. These organelles must be preserved in cells over many generations to maintain the selective advantages afforded by compartmentalization. Cells use complex molecular mechanisms of organelle inheritance to achieve high accuracy in the sharing of organelles between daughter cells. Here we focus on how a multi-copy organelle, the peroxisome, is partitioned in yeast, mammalian cells, and filamentous fungi, which differ in their mode of cell division. Cells achieve equidistribution of their peroxisomes through organelle transport and retention processes that act coordinately, although the strategies employed vary considerably by organism. Nevertheless, we propose that mechanisms common across species apply to the partitioning of all membrane-enclosed organelles.
authors.affiliation: Department of Cell Biology, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.
authors.forename: Barbara
authors.initials: B
authors.lastname: Knoblach
authors.affiliation: Department of Cell Biology, University of Alberta, Edmonton, Alberta T6G 2H7, Canada. Electronic address: rick.rachubinski@ualberta.ca.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Rachubinski
mesh_terms: D000818:Animals; D002451:Cell Compartmentation; D005658:Fungi / Q000166:cytology* / Q000378:metabolism*; D006801:Humans; D008322:Mammals / Q000378:metabolism*; D008954:Models, Biological; D020675:Peroxisomes / Q000378:metabolism*; D012441:Saccharomyces cerevisiae / Q000166:cytology* / Q000378:metabolism*