Akinete

Source: Wikipedia, the free encyclopedia.
Intercalary located akinete of Dolichospermum smithii
Terminally located akinete of Gloeotrichia

An akinete is an enveloped, thick-walled, non-motile, dormant

stationary phase and is triggered by unfavorable conditions such as insufficient light or nutrients, temperature, and saline levels in the environment.[1][4] Once conditions become more favorable for growth, the akinete can then germinate back into a vegetative cell.[5] Increased light intensity, nutrients availability, oxygen availability, and changes in salinity are important triggers for germination.[5]
In comparison to vegetative cells, akinetes are generally larger.
carbon fixation, albeit at significantly lower levels.[3]

Akinetes can remain dormant for extended periods of time. Studies have shown that some species could be cultured that were 18 and 64 years old. [7]

Akinete formation also influences the perennial blooms of cyanobacteria.[8]

References

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  5. ^ .
  6. ^ David Livingstone & G.H.M. Jaworski (1980) The viability of akinetes of blue-green algae recovered from the sediments of Rostherne Mere, British Phycological Journal, 15:4, 357-364, DOI: 10.1080/00071618000650361
  7. ^ Myers, Jackie; Beardall, John (Aug 2011). "Potential triggers of akinete differentiation in Nodularia spumigena (Cyanobacteriaceae) isolated from Australia". Hydrobiologia. 671 (1): 165.
    S2CID 7949386
    .