Euglena viridis

Classification

• Domain- Eukaria
• Kingdom- Excavata
• Superphylum- Discoba
• Phylum- Euglenozoa
• Class: Euglenoidea

Classification continued

• Order- Euglenales
• Family- Euglenaceae
• Genus- Euglena
• Species- Euglena viridis

overview

DOMAIN EUKARIA
Must be composed of eukaryotic cells.

KINGDOM EXCAVATA
Contain heavily modified “mitochondria.” They can have many flagella and a "ventral feeding groove."

SUPERPHYLUM DISCOBA
Mitochondria contain "discoid christae."

PHYLUM EUGLENOZA
Must have eugolenzoan flagella.

CLASS EUGLENOIDEA
Must have a uniform number of flagella.

ORDER EUGLENALES
Organisms spend most of their time in the "motile flagellate" stage.

FAMILY EUGLENECEAE
Green algae with one flagellum.

GENUS EUGLENA
Get most food by photosynthesis, but can be hetrothophical. When eating hetrotrophicly, it uses phagocytosis.

SPECIES EUGLENA VIRIDIS
Has a light sensor and an eyespot.

The w's

Untitled Slide

WHO?
Antoni van Leeuwenhoek noted "animalcules" in pond water. Later these micro-organisms were named Euglena viridis by O.F. Müller.

WHERE?
Delf, Holland

WHEN?
7 September 1674

WHAT?
A protist and an algae with an eyespot.

The circle of life

The Euglena Viridis is always performing mitosis and cytokenisis. They begin as free-swimming flagellates, but when they become palema, they lose their flagella and begin reproducing until their flagella grow back.

NUTRITion

The Viridis is a “mixotroph”; it typically makes food photoautotrophicly, like a plant, but, when necessary, it will eat any organic substance.

Response system

Having an eyespot, the viridis can detect light, but it cannot see. It will always move toward light.

What direction does the viridis move?

Environmental impact

NICHE
Protects and helps fish’immune systems,especially the Labeo rohita, or Rohu, particularly against the bacterium Aeromonas hydrophila.

SOURCES

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Rodríguez-Ezpeleta, Naiara, Hennor Brinkmann, Gertraud Burger, Andrew J. Roger, Michael W. Gray, Hervé Phillipe, and B. F. Lang. "Toward Resolving the Eukaryotic Tree: The Phylogenetic Positions of Jakobids and Cercozoans." Current Biology - Toward Resolving the Eukaryotic Tree: The Phylogenetic Positions of Jakobids and Cercozoans. Current Biology, 21 Aug. 2007. Web. 12 Mar. 2014.

Simpson, A. G. B. "Cytoskeletal Organization, Phylogenetic Affinities and Systematics in the Contentious Taxon Excavata (Eukaryota)." International Journal Of Systematic And Evolutionary Microbiology 53.6 (2003): 1759-777. Cytoskeletal Organization, Phylogenetic Affinities and Systematics in the Contentious Taxon Excavata (Eukaryota). International Journal of Systematic and Evolutionary Microbiology. Web. 12 Mar. 2014.

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"Chlamydomonas & Euglena Viridis." YouTube. YouTube, 01 Oct. 2011. Web. 23 Mar. 2014.