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Micrasterias
EntityQ149783· pop 13· linked from 11 articles

Micrasterias

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Micrasterias is a unicellular green alga of the order Desmidiales. Its species vary in size reaching up to hundreds of microns.

Species

GENUS

  1. KingdomPlantae
  2. PhylumCharophyta
  3. ClassConjugatophyceae
  4. OrderDesmidiales
  5. FamilyDesmidiaceae
Habitatfreshwater
Observations recorded6,104

Micrasterias radiata Stjärnalger (Micrasterias) är ett släkte grönalger som har fått sitt namn utifrån utseendet; liten stjärna. Referenser Svenska namn på alger[död länk] Denna artikel om mikroorganismer eller alger saknar väsentlig information. Du kan hjälpa till genom att tillföra sådan.

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Wikidata facts

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Micrasterias thomasiana.jpg
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Commons category
Micrasterias
taxon name
Micrasterias
taxon common name
ミクラステリアス属
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~12 min read

Article

9 sections
Contents
  • Description
  • Similar genera
  • Species
  • Accepted species
  • Species names with uncertain taxonomic status
  • Phylogenetics
  • Habitat and distribution
  • References
  • External links

Micrasterias is a unicellular green alga of the order Desmidiales. Its species vary in size reaching up to hundreds of microns.

Micrasterias displays a bilateral symmetry, with two mirror image semi-cells joined by a narrow isthmus containing the nucleus of the organism. This dual semi-cell structure is unique to the group of green algae to which Micrasterias belongs. Each semi-cell contains a single large chloroplast, the site of photosynthesis for Micrasterias. Chloroplasts within Micrasterias contain chlorophyll a and chlorophyll b and the enzymes required for photosynthesis. The sugar created is used to provide energy for the organism or, if not used, taken up by many small round pyrenoids which are embedded in the chloroplast. They convert the sugar to a starch for storage.

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