Definitions for akinete
akinete

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1. Akinete

   An akinete is an enveloped, thick-walled, non-motile, dormant cell formed by filamentous, heterocyst-forming cyanobacteria under the order Nostocales and Stigonematales. Akinetes are resistant to cold and desiccation. They also accumulate and store various essential material, both of which allows the akinete to serve as a survival structure for up to many years. However, akinetes are not resistant to heat. Akinetes usually develop in strings with each cell differentiating after another and this occurs next to heterocysts if they are present. Development usually occurs during stationary phase and is triggered by unfavorable conditions such as insufficient light or nutrients, temperature, and saline levels in the environment. Once conditions become more favorable for growth, the akinete can then germinate back into a vegetative cell. Increased light intensity, nutrients availability, oxygen availability, and changes in salinity are important triggers for germination. In comparison to vegetative cells, akinetes are generally larger. This is associated with the accumulation of nucleic acids which is important for both dormancy and germination of the akinete. Despite being a resting cell, it is still capable of some metabolic activities such as photosynthesis, protein synthesis, and carbon fixation, albeit at significantly lower levels.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. Akinete formation also influences the perennial blooms of cyanobacteria.

WikidataRate this definition:0.0 / 0 votes

1. Akinete

   An akinete is a thick-walled dormant cell derived from the enlargement of a vegetative cell. It serves as a survival structure. It is a resting cell of cyanobacteria and unicellular and filamentous green algae. Under magnification, akinetes appear thick walled with granular-looking cytoplasms. Development of akinetes from a vegetative cell involves: ⁕increase in size ⁕gradual disappearance of gas vacuoles ⁕increase in cytoplasmic density, number of ribosomes & cyanophycin granules The akinetes are filled with food reserves, and have a normal cell wall surrounded with 3 layer coat.

How to pronounce akinete?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say akinete in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of akinete in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of akinete in Pythagorean Numerology is: 2

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Akinete
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=akinete