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Anabaena

Anabaena

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A blue-green water bacterium that forms chains and fixes nitrogen
  • proper noun
  • /ˌænəˈbiːnə/
  • Specialized
: Anabaena
  • The cyanobacterium Anabaena is well-known for its nitrogen-fixing abilities in aquatic ecosystems.

Examples

  • Headrick's project used molecular genetics techniques to isolate for the first time the gene that is necessary for nitrogen fixation in the blue-green alga Anabaena 7120.

    Academic text (1990)
  • In aquatic environments, Anabaena can establish symbiotic relationships with plants like water ferns.

  • Farmers incorporate Anabaena into rice paddies as a natural fertilizer to enhance soil nutrient levels.

Surface Forms

Anabaena main

Etymology

The word Anabaena comes from Greek parts ana- 'up' and bainein 'to go'. So it means 'to go up', like the English word 'ascend', a helpful picture because this genus of filamentous cyanobacteria often makes chains that rise to the water surface and fix nitrogen.