Taxonomy of

ProtozoaPrepared by:

NOE P. MENDEZCENTRAL MINDANAO UNIVERSITY (CMU)

npolomendez@gmail.com

Protozoa

Unicellular

EukaryoteBinary Fission Replication

Motile

Taxonomy is the science of

naming, describing and classifying organisms

Classification of Protozoa• Protozoa as a subkingdom• Contains 7 phyla

Phylum SarcomastigophoraPhylum LabyrinthomorphaPhylum ApicomplexaPhylum MicrosporaPhylum AscetosporaPhylum MyxozoaPhylum Ciliophora

Phylum Sarcomastigophora• Protists that have a single type of

nucleus and possess flagella• Both Sexual and Asexual

reproduction • Subphylum Mastigophora and

SarcodinaMastigophoraSarcodina

Subphylum Mastigophora

• Contains both phytoflagellates and zooflagellates

• Class: Zoomastigophora• Examples: Trypanosoma, Giardia,

Trichomonas, Leishmania, Trichonympha

Trypanosoma brucei Giardia lamblia

Trichomonas vaginalis

Subphylum Sarcodina• Contains amoeboid protist• Found in both fresh and salt water• Class Rhizopoda• Examples: Amoeba, Elphidium,

Coccodiscus, Naegleria, Entamoeba

Amoeba

Entamoeba histolytica

Naegleria floweri

Phylum Labyrinthomorpha • Consist of protists that

have spindled-shaped• Example: Labyrinthula

Labyrinthula

Phylum Apicomplexa• Often called sporozoans• Spore-forming stage in their life cyle• Lack special locomotory organelles• Examples: Plasmodium, Taxoplasma,

Eimeria, Cryptosporidium

Plasmodium falciparum Taxoplasma gondii

Cryptosporidium parvum

Phylum Microspora

• Obligatory intracellular parasites lacking mitochondria

• Examples: Nosema

Nosema apis

Phylum Ascetospora • Small phylum • Consists exclusively of

parasitic protist • Example: Haplosporidium

Haplosporidium costale

Phylum Myxozoa• All parasitic• Found in freshwater and marine• Example: Myxosoma

Myxosoma cerebralis

Phylum Ciliophora• Largest phyla• 8,000 species• Cilia as locomotory organelles• Example: Didinium, stentor,

Vorticella, Tetrahymena, Paramecium, Tokophrya, Entodinium, Nyctotherus, Balantidium, Ichthyophthirius

Paramecium Stentor

Entodinium Nyctotherus ovalis

Balantidium coli Ichthyophthirius multifiliis

THE END! :D