Euglenophyta: Characteristics and Classification
Explore the world of Euglenophyta, unicellular eukaryotic organisms with unique characteristics such as flagella, diverse plastid shapes, and distinctive pigments. Learn about Euglena and Phacus species, their structures, and movement mechanisms.
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Presentation Transcript
Division : Euglenophyta Class: Euglenophyceae 1-Order:Euglenales Genus: Euglena , Phacus
General Characteristics of Euglenophyta unicellular eukaryotic organisms, possessing single or double flagella . The plastids exhibit various shapes, such as disc- shaped, lamellar, ribbon-like, star-shaped, and reticular. Stored food appears in granules known as paramylum. photosynthetic species possesses green pigments including chlorophyll a and c, and golden brown pigment includes peridinin.
Euglena 1- oval or fusiform shape alga have a single flagellae 2-linear shape chloroplast 3-there is a red color eye spot near the front of the cell to direct algal movement toward the light source. 3-posses a flexible sheath surrounding cell called pellicle that gives the cell the ability to contract and move freely.
Phacus unicellular algae, oval-shaped or spherical cells tha are often flattened and leaf-like. The cells instead move by gliding and swimming with their single flagellum. that extends from the lateral side of the algae, and it features a protrusion at the tapered end known as a spine. The chloroplasts may be small and spherical . stored food is in the form of paramylum.
