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Cyanolichens are lichens that apart from the basic fungal component ("mycobiont"), contain cyanobacteria, otherwise known as blue-green algae, as the photosynthesizing component ("photobiont"). Overall, about a third of lichen photobionts are cyanobacteria and the other two thirds are green algae.

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  • Cyanolichen (en)
  • Cyanolichen (fr)
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  • Cyanolichens are lichens that apart from the basic fungal component ("mycobiont"), contain cyanobacteria, otherwise known as blue-green algae, as the photosynthesizing component ("photobiont"). Overall, about a third of lichen photobionts are cyanobacteria and the other two thirds are green algae. (en)
  • Un cyanolichen est un lichen constitué d'une association symbiotique obligatoire entre un champignon et une cyanobactérie ou entre un champignon (mycobionte), une algue (photobionte) et une cyanobactérie ; dans ce dernier cas, la cyanobactérie est alors dite cyanobionte secondaire, ou symbionte secondaire. 8% environ des lichens décrits dans le monde avant 1990 sont des cyanolichens. En 1990 on avait déjà répertorié plus de 500 espèces de lichens tripartites, c'est-à-dire comportant un champignon, une algue et une cyanobactérie. (fr)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Bipartite_and_tripartite_cyanolichens_(10.3897-mycokeys.6.3869)_Figure_1.jpg
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  • Cyanolichens are lichens that apart from the basic fungal component ("mycobiont"), contain cyanobacteria, otherwise known as blue-green algae, as the photosynthesizing component ("photobiont"). Overall, about a third of lichen photobionts are cyanobacteria and the other two thirds are green algae. Some lichens contain both green algae and cyanobacteria apart from the fungal component, in which case they are called "tripartite". Normally the photobiont occupies an extensive layer covering much of the thallus, but in tripartite lichens, the cyanobacterium component may be enclosed in pustule-like outgrowths of the main thallus called cephalodia, which can take many forms. Apart from gaining energy through photosynthesis, the cyanobacteria which live in cephalodia may perform nitrogen fixation on behalf of the lichen community. These cyanobacteria are generally more rich in nitrogen-fixing cells called heterocysts than those which live in the main photobiont layer of lichens. (en)
  • Un cyanolichen est un lichen constitué d'une association symbiotique obligatoire entre un champignon et une cyanobactérie ou entre un champignon (mycobionte), une algue (photobionte) et une cyanobactérie ; dans ce dernier cas, la cyanobactérie est alors dite cyanobionte secondaire, ou symbionte secondaire. 8% environ des lichens décrits dans le monde avant 1990 sont des cyanolichens. En 1990 on avait déjà répertorié plus de 500 espèces de lichens tripartites, c'est-à-dire comportant un champignon, une algue et une cyanobactérie. Les lichens pour lesquels le seul symbionte du champignon est une algue verte, sont des , appelés aussi . (fr)
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