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Dasycladales is an order of large unicellular green algae in the class Ulvophyceae. It contains two families, the Dasycladaceae and the Polyphysaceae. These single celled algae are from 2 mm to 200 mm long. They live on substrates in shallow warm marine waters, usually less than 20 meters deep. They are very large cells. They are able to attain these sizes without numerous internal cell wells because they build calcium carbonate shells around themselves. Because the nucleus is safely hidden in the holdfast, the cells easily regenerate if the top portions are broken off.

AttributesValues
rdf:type
rdfs:label
  • Dasycladales (en)
  • متفرعيات وبرية (ar)
  • Dasycladophyceae (cs)
  • Dasycladales (es)
  • Dasycladales (fr)
  • 우산파래목 (ko)
  • カサノリ目 (ja)
  • Dasycladales (pt)
  • 绒枝藻目 (zh)
rdfs:comment
  • المتفرعيات الوبرية (الاسم العلمي:Dasycladales) هي رتبة من الطحالب الخضراء تتبع طائفة الأشنيات الأولفانية. (ar)
  • Dasycladophyceae je třída zelených řas, v některých případech však je zařazována dovnitř třídy Ulvophyceae jakožto řád Dasycladales. Mají sifonální mnohojadernou stélku, bohatou na uhličitan vápenatý a β-1,4-mannan v buněčné stěně. Mají bohatý fosilní záznam minimálně od kambria. Známým rodem je Acetabularia se složitým životním cyklem. (cs)
  • Dasycladales es un orden de grandes algas unicelulares de la clase Ulvophyceae.​ (es)
  • Les Dasycladales sont un ordre d'algues vertes de la classe des Ulvophyceae. (fr)
  • 우산파래목 또는 바다삿갓말목(Dasycladales)은 갈파래강에 속하는 녹조식물 목의 하나이다. 2개의 과, 우산파래과와 폴리피사과로 이루어져 있다. (ko)
  • カサノリ目(カサノリもく) (学名: Dasycladales) は、緑藻植物門のアオサ藻綱に属する目の1つである。カサノリ目に属する生物は主軸と輪生する側枝からなる緑藻であり、しばしば石灰化する。基本的に多核嚢状性 (多数の核を含む1個の巨大細胞) であるが、カサノリ属などでは発生終期まで核を1個だけもつ。この性質を利用して核を含む部分と含まない部分を入れ替える接ぎ木実験に用いられ、生物の表現型を支配しているのが核であることや、遺伝情報を伝達する物質 (現在ではmRNAであることが明らかとなっている) が存在することを初めて示した。沿岸域に生育し、ほとんどが熱帯から亜熱帯域に分布する。カンブリア紀以降の化石記録が豊富であるが、現生種としてはおよそ10属50種のみが知られる。 (ja)
  • Dasycladales é uma ordem de grandes algas unicelulares da classe Ulvophyceae. (pt)
  • 絨枝藻目 (Dasycladales)為藻類之一目,歸於綠藻門(Chlorophyta)石蓴綱(Chlorophyceae),同綱者尚有剛毛藻目(Cladophorales) 等目。 (zh)
  • Dasycladales is an order of large unicellular green algae in the class Ulvophyceae. It contains two families, the Dasycladaceae and the Polyphysaceae. These single celled algae are from 2 mm to 200 mm long. They live on substrates in shallow warm marine waters, usually less than 20 meters deep. They are very large cells. They are able to attain these sizes without numerous internal cell wells because they build calcium carbonate shells around themselves. Because the nucleus is safely hidden in the holdfast, the cells easily regenerate if the top portions are broken off. (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Receptaculitid.jpg
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authority
  • Pascher 1931 (en)
fossil range
  • Ordovician to present (en)
subdivision
  • *Dasycladaceae *Polyphysaceae *†Triploporellaceae (en)
subdivision ranks
  • Families (en)
taxon
  • Dasycladales (en)
has abstract
  • المتفرعيات الوبرية (الاسم العلمي:Dasycladales) هي رتبة من الطحالب الخضراء تتبع طائفة الأشنيات الأولفانية. (ar)
  • Dasycladophyceae je třída zelených řas, v některých případech však je zařazována dovnitř třídy Ulvophyceae jakožto řád Dasycladales. Mají sifonální mnohojadernou stélku, bohatou na uhličitan vápenatý a β-1,4-mannan v buněčné stěně. Mají bohatý fosilní záznam minimálně od kambria. Známým rodem je Acetabularia se složitým životním cyklem. (cs)
  • Dasycladales is an order of large unicellular green algae in the class Ulvophyceae. It contains two families, the Dasycladaceae and the Polyphysaceae. These single celled algae are from 2 mm to 200 mm long. They live on substrates in shallow warm marine waters, usually less than 20 meters deep. They are very large cells. They are able to attain these sizes without numerous internal cell wells because they build calcium carbonate shells around themselves. They contain only one nucleus in their vegetative stage, which remains in the bottom of the cell in the holdfast at the substrate. Only when they are ready to produce gametes does the nucleus undergo meiosis and then numerous mitoses into many nuclei which then migrate into the gametangia at the top of the alga. Because the nucleus is safely hidden in the holdfast, the cells easily regenerate if the top portions are broken off. These algae are notable for having an intracellular network of 10 nm proteinaceous filaments, possibly for the storage and transport of ribonucleoprotein particles. Because of all these properties, and the fact that they are easy to manipulate they have been favorite organisms in the study of the role of the nucleus vs the unnucleated cytoplasm in the behavior of cells. (en)
  • Dasycladales es un orden de grandes algas unicelulares de la clase Ulvophyceae.​ (es)
  • Les Dasycladales sont un ordre d'algues vertes de la classe des Ulvophyceae. (fr)
  • 우산파래목 또는 바다삿갓말목(Dasycladales)은 갈파래강에 속하는 녹조식물 목의 하나이다. 2개의 과, 우산파래과와 폴리피사과로 이루어져 있다. (ko)
  • カサノリ目(カサノリもく) (学名: Dasycladales) は、緑藻植物門のアオサ藻綱に属する目の1つである。カサノリ目に属する生物は主軸と輪生する側枝からなる緑藻であり、しばしば石灰化する。基本的に多核嚢状性 (多数の核を含む1個の巨大細胞) であるが、カサノリ属などでは発生終期まで核を1個だけもつ。この性質を利用して核を含む部分と含まない部分を入れ替える接ぎ木実験に用いられ、生物の表現型を支配しているのが核であることや、遺伝情報を伝達する物質 (現在ではmRNAであることが明らかとなっている) が存在することを初めて示した。沿岸域に生育し、ほとんどが熱帯から亜熱帯域に分布する。カンブリア紀以降の化石記録が豊富であるが、現生種としてはおよそ10属50種のみが知られる。 (ja)
  • Dasycladales é uma ordem de grandes algas unicelulares da classe Ulvophyceae. (pt)
  • 絨枝藻目 (Dasycladales)為藻類之一目,歸於綠藻門(Chlorophyta)石蓴綱(Chlorophyceae),同綱者尚有剛毛藻目(Cladophorales) 等目。 (zh)
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