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Desmarestia is a genus of brown algae found worldwide. It is also called acid weed, acidweed, oseille de mer, sea sorrel, ウルシグサ (urushi-gusa), stacheltang, mermaid's hair, landlady's wig, or gruagach. However, 'sea sorrel' can also specifically refer to Desmarestia viridis. Members of this genus can be either annual or perennial. Annual members of this genus store sulfuric acid in intracellular vacuoles. When exposed to air they release the acid, thereby destroying themselves and nearby seaweeds in the process. They are found in shallow intertidal zones.

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rdf:type
rdfs:label
  • Desmarestia (en)
  • Desmarestia (de)
  • Desmarestia (fr)
  • 酸藻属 (zh)
rdfs:comment
  • Desmarestia est un genre d'algues brunes de la famille des Desmarestiaceae. Il est nommé en honneur d’Anselme Gaëtan Desmarest, zoologiste français du XIXe siècle. (fr)
  • 酸藻属(学名:Desmarestia)为酸藻科的一个属。 (zh)
  • Desmarestia ist die namensgebende Gattung der Familie die zu den Braunalgen gehört. Sie ist weltweit in den Küstengebieten verbreitet und umfasst Arten mit recht unterschiedlichen Wuchsformen, die teils mehrere Meter lang werden können. In der Gattung gibt es einjährige und mehrjährige Arten. Die einjährigen Arten, darunter Desmarestia ligulata und D. viridis speichern große Mengen an Schwefelsäure in ihren Vakuolen, die möglicherweise der Abwehr von Fressfeinden dient. In den mehrjährigen Arten, darunter D. aculeata (Stacheltang) konnte eine derartige Säureakkumulation nicht festgestellt werden. Der Lebenszyklus ist bei allen Arten heteromorph, wobei der Sporophyt den eigentlichen Thallus darstellt, während der Gametophyt mikroskopisch klein ist. (de)
  • Desmarestia is a genus of brown algae found worldwide. It is also called acid weed, acidweed, oseille de mer, sea sorrel, ウルシグサ (urushi-gusa), stacheltang, mermaid's hair, landlady's wig, or gruagach. However, 'sea sorrel' can also specifically refer to Desmarestia viridis. Members of this genus can be either annual or perennial. Annual members of this genus store sulfuric acid in intracellular vacuoles. When exposed to air they release the acid, thereby destroying themselves and nearby seaweeds in the process. They are found in shallow intertidal zones. (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Desmarestia_Kurilensis.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Desmarestia_Latifrons.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Desmarestia_ligulata_drawing.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Desmarestia_viridis_Crouan.jpg
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