Chemotropism and Cell-Cell Fusion in Fungi.

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Clark-Cotton, Manuella R

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Jacobs, Katherine C

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Lew, Daniel J

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2022-03-01T15:05:49Z

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2022-03-01T15:05:49Z

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2022-02-09

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2022-03-01T15:05:48Z

dc.description.abstract

Fungi exhibit an enormous variety of morphologies, including yeast colonies, hyphal mycelia, and elaborate fruiting bodies. This diversity arises through a combination of polar growth, cell division, and cell fusion. Because fungal cells are nonmotile and surrounded by a protective cell wall that is essential for cell integrity, potential fusion partners must grow toward each other until they touch and then degrade the intervening cell walls without impacting cell integrity. Here, we review recent progress on understanding how fungi overcome these challenges. Extracellular chemoattractants, including small peptide pheromones, mediate communication between potential fusion partners, promoting the local activation of core cell polarity regulators to orient polar growth and cell wall degradation. However, in crowded environments, pheromone gradients can be complex and potentially confusing, raising the question of how cells can effectively find their partners. Recent findings suggest that the cell polarity circuit exhibits searching behavior that can respond to pheromone cues through a remarkably flexible and effective strategy called exploratory polarization.

dc.identifier.issn

1092-2172

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1098-5557

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https://hdl.handle.net/10161/24504

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eng

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American Society for Microbiology

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Microbiology and molecular biology reviews : MMBR

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10.1128/mmbr.00165-21

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Cdc42

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GPCR

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anastomosis

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cell polarity

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fungi

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mating

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pheromone

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yeast

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Chemotropism and Cell-Cell Fusion in Fungi.

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Journal article

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Lew, Daniel J|0000-0001-7482-3585

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e0016521

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Duke

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School of Medicine

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Basic Science Departments

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Institutes and Centers

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Cell Biology

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Molecular Genetics and Microbiology

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Pharmacology & Cancer Biology

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Duke Cancer Institute

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