Cell Polarity in Filamentous Fungi

Shaping the Mold

Steven D Harris

Research output: Contribution to journalReview article

89 Citations (Scopus)

Abstract

The formation of highly polarized hyphae that grow by apical extension is a defining feature of the filamentous fungi. High-resolution microscopy and mathematical modeling have revealed the importance of the cytoskeleton and the Spitzenkorper (an apical vesicle cluster) in hyphal morphogenesis. However, the underlying molecular mechanisms remain poorly characterized. In this review, the pathways and functions known to be involved in polarized hyphal growth are summarized. A central theme is the notion that the polarized growth of hyphae is more complex than in yeast, though similar sets of core pathways are likely utilized. In addition, a model for the establishment and maintenance of hyphal polarity is presented. Key features of the model include the idea that polarity establishment is a stochastic process that occurs independent of internal landmarks. Moreover, the stabilization of nascent polarity axes may be the critical step that permits the emergence of a new hypha.

Original languageEnglish (US)
Pages (from-to)41-77
Number of pages37
JournalInternational Review of Cytology
Volume251
DOIs
StatePublished - Sep 1 2006

Fingerprint

Cell Polarity
Hyphae
Fungi
Random processes
Yeast
Stochastic Processes
Microscopic examination
Stabilization
Growth
Cytoskeleton
Morphogenesis
Microscopy
Yeasts
Maintenance

Keywords

  • Cell polarity
  • Filamentous fungi
  • Hyphae
  • Morphogenesis Polarity axis

ASJC Scopus subject areas

  • Histology
  • Cell Biology

Cite this

Cell Polarity in Filamentous Fungi : Shaping the Mold. / Harris, Steven D.

In: International Review of Cytology, Vol. 251, 01.09.2006, p. 41-77.

Research output: Contribution to journalReview article

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