Dormant Cells (Akinetes) of Filamentous Cyanobacteria Demonstrate a Great Variability in Morphology, Physiology, and Ecological Function

Assaf Sukenik, Jacqueline Rücker, Iris Maldener

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

14 Scopus citations

Abstract

Akinetes are dormant cells of cyanobacteria species from the Nostocales and Stigonematales orders, allowing these phototrophic bacteria to survive in harsh and starvation conditions. These spore-like thick-walled, nonmotile cells differentiate from vegetative cells in response to environmental fluctuations. They serve a perennating role as they maintain the ability to resume the morphology and functions of vegetative cells including the renewal of cell division after a long period of dormancy. Here, we review recent advances in studies of akinetes emphasizing environmental triggers, cellular responses, morphological, and structural changes that occur during akinete differentiation and germination. Variations in akinete formation, structure, and metabolism among different species are highlighted and their role in bloom formation of Nostocales species is demonstrated.

Original languageEnglish
Title of host publicationCyanobacteria
Subtitle of host publicationFrom Basic Science to Applications
PublisherElsevier
Pages65-77
Number of pages13
ISBN (Electronic)9780128146682
ISBN (Print)9780128146675
DOIs
StatePublished - 3 Dec 2018
Externally publishedYes

Keywords

  • Akinetes
  • Bloom formation
  • Cell differentiation
  • Dormancy
  • Environmental triggers
  • Morphological changes
  • Nostocales

ASJC Scopus subject areas

  • General Immunology and Microbiology

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