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Rich And Thick Lichens On Rocks , Southern Wales , UK Europe Lichens Are Symbiot ...

Rich And Thick Lichens On Rocks , Southern Wales , UK Europe Lichens Are Symbiot ...

  Stockphoto ID: 1222058

File name: Lichens1.jpg
Format: film, 35mm
Property release: no Model release: no
Source: photographer Based in: Australia

Description: Rich and thick lichens on rocks , southern Wales , UK Europe Lichens are symbiotic associations of a fungus with a photosynthetic partner ( called a photobiont or phycobiont ) that can produce food for the lichen from sunlight The photobiont is usually either green algae or cyanobacteria A few lichens are known to contain yellow green algae or , in one case , a brown alga Some lichens contain both green algae and cyanobacteria as photobionts ; in these cases , the cyanobacteria symbiont component may specialize in fixing atmospheric nitrogen for metabolic use The word is pronounced as though it is spelled " liken " ( IPA : [ la e ; k e ; n ] )

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