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Zygnema is a genus of freshwater filamentous thalloid alga comprising about 100 species. A terrestrial species, Z. terrestre, is known from India. Zygnema grows as a free-floating mass of filaments, although young plants may be found anchored to streambeds with a holdfast. The filaments form a yellow-green to bright green colored tangled mat, and are composed of elongate barrel-shaped cells, each with two star-shaped (stellate) chloroplasts arrayed along the axis of the cell.

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rdf:type
rdfs:label
  • مترابطة (طحلب) (ar)
  • Zygnema (de)
  • Zygnema (it)
  • ホシミドロ属 (ja)
  • Zrostnica (pl)
  • Zygnema (en)
rdfs:comment
  • زيغنيما (الاسم العلمي: Zygnema) هو جنس من الطحالب الخضراء يتبع فصيلة المترابطية من رتبة المترابطيات. (ar)
  • Zygnema is a genus of freshwater filamentous thalloid alga comprising about 100 species. A terrestrial species, Z. terrestre, is known from India. Zygnema grows as a free-floating mass of filaments, although young plants may be found anchored to streambeds with a holdfast. The filaments form a yellow-green to bright green colored tangled mat, and are composed of elongate barrel-shaped cells, each with two star-shaped (stellate) chloroplasts arrayed along the axis of the cell. (en)
  • ホシミドロ属 Zygnema は、糸状の緑藻類。アオミドロなどに似て、葉緑体が星状であることからこの名がある。ただし、見かけだけでは区別出来ない別属がある。 (ja)
  • Zrostnica (Zygnema) - rodzaj glonów z gromady zielenic. Występuje w wodach słodkich Eurazji, Afryki i Ameryki. (pl)
  • Zygnema C.Agardh, 1817 è un genere di alghe verdi della famiglia Zygnemataceae. (it)
  • Zygnema (Fadenalge, Sternalge) ist eine Gattung der Grünalgen. Sie gehört zur Familie der Zygnemataceae. Zygnema tritt, wie Spirogyra, häufig im Frühjahr in ruhigen Gewässern als frei schwebende, fädige, hellgrüne „Watte“ auf. Sie zählt zu den Jochalgen (Vermehrung durch Jochbildung) und hat keine begeißelten Stadien. Jede Zelle enthält zwei große sternförmige Chloroplasten. (de)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/20110331_012556_Algae.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/20100417_005205_Zygnema.jpg
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  • C. Agardh, 1817 (en)
image
image caption
  • Zygnema, showing characteristic dual star-shaped chloroplasts. (en)
  • Numbered ticks are 20 μm apart. (en)
synonyms
  • * Globulina (Link in Nees 1820) * Lucernaria (Roussel, 1806) * Pleurodiscus (Lagerheim, 1895) * Rhynchonema (Kützing, 1849) * Stellulina (Link, 1833) * Thwaitesia (Montagne, 1845) * Tyndaridea (Bory de Saint-Vincent 1822) * Tendaridea (Bory de Saint-Vincent 1822) * Tendaridella (Gaillon, 1833) (en)
taxon
  • Zygnema (en)
has abstract
  • زيغنيما (الاسم العلمي: Zygnema) هو جنس من الطحالب الخضراء يتبع فصيلة المترابطية من رتبة المترابطيات. (ar)
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