Protozoans: Phylum Sarcomastigophora

Protozoan Taxonomy

• Phylum sarcomastigophora

Protozoologists: zoologists who specialize in study of protozoa.

Protozoa as a sub kingdom
7 separate phyla
Classification basis: types of nuclei, mode of reproduction, mechanism of locomotion.
Following are different phyla

Sarcomastigophora, labyrinthomorpha, apicomplexa, microspora, acetospora, myxozoa, and ciliophora

Phylum sarcomastigophora

Sarcomastigophora means flashy whip bearing.

Largest protozoan phylum

More than 18000 described species

They are unicellular or colonial

Locomotion by flagella, pseudopodia or both

Autotrophic, heterotrophic, saprozoic

Single type of nucleus

Sexual reproduction 

 Subphylum mastigophora

Members of subphylum mastigophora have flagella for locomotion. The flagella push or pull the protozoan through aquatic medium. The flagella may produce two dimension whip like or helical movements.
Examples: Euglena and Volvox

Classes of subphylum mastigophora

There are 2 classes of subphylum mastigophora

Phytomastigophora

Zoomastigophora

Phyto means plant like and zoo means animal like.

Class phytomastigophora

The members of class phytomastigophora possess chlorophyll and one or more flagella. There are two types of phytomastigophora. Marine phytomastigophora and freshwater phytomastigophora.

Due to the presence of chlorophyll produce a large portion of food in Marine food webs.
They also produce oxygen for marine animals.

Dinoflagellates These are are most unusual protists because of of the following characteristics Unicellular: most of the dinoflagellates are unicellular Shell: covered with shells of interlocking cellulose plates impregnated with silicates. Second group of producers: in the Marine ecosystem Red tides: population explosion or blooms. Flagella: two flagella, transverse flagella and longitudinal flagella or trailing flagella Pigments: Two types of pigments, chlorophyll and xanthophylls. Toxins: Gymnodinium, genus of dinoflagellates produce toxins. cause of of Moses plague, blood red tide, Red Sea named after the toxic dinoflagellate blooms. Gymnodinium is called naked dinoflagellate because of not having cellulosic plates.

For further details of the topic please visit the following link!!

https://docs.google.com/presentation/d/15kEthv77O_DSry0pY_vMC6NNyWIVGbaszm3Oehg_UQQ/edit?usp=drivesdk

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