The Eukaryotes 12 a Protozoans Eukaryotes in general

The Eukaryotes 12 a: Protozoans

Eukaryotes in general cells chromosomes made of chromatin cell division: mitosis & cytokinesis (if) sexual reproduction meiosis fertilization

http: //tolweb. org/Eukaryotes/3

Kingdom Protista highly diverse; may be more than 1 mostly unicellular 2 “lifestyles” photoautotrophic: algae chemohetero & often mobile: protozoa

Protozoa nutrition trophozoite vs. cyst “free-living” vs. parasite Protozoa locomotion cilia/flagella/amoeboid flow by vector Protozoa life cycle & reproduction asexual: fission, budding, coenocyte, schizogony

coenocyte budding schizogony

Protozoa nutrition trophozoite vs. cyst “free-living” vs. parasite Protozoa locomotion cilia/flagella/amoeboid flow by vector Protozoa life cycle & reproduction asexual: fission, budding, coenocyte, schizogony sexual: gametes, zygote Protozoa habitat

Eukaryotic Life Cycles/Histories (adult) Spores (adult) and some protists

http: //tolweb. org/Eukaryotes/3

P: Fornicata Diplomanada = diplomonads: Giardia lamblia

http: //tolweb. org/Eukaryotes/3

P: Parabasala Trichomonas vaginalis

http: //tolweb. org/Eukaryotes/3

P: Euglenozoa/phyta Euglenids Euglena

Secondary endosymbiosis

Kinetoplastids trypanosomes = hemoflagellates Trypanosoma brucei gambiense T. brucei rhodesiense T. cruzi

Kinetoplastids trypanosomes = hemoflagellates cutaneous form Leishmania mucocutaneous form also a visceral (organ-attacking) form

http: //tolweb. org/Eukaryotes/3

Alveolates P: Ciliophora = ciliates Didinium Paramecium

ciliate conjugation

Vorticella

Alveolates P: Apicomplexans

Plasmodium P. falciparum, P. vivax, P. ovale & P. malariae

Cyclospora cayetensis

Toxoplasma gondii

Alveolates P: Pyrrophyta = Dinoflagellates Peridinium red tide

At UCSB 2003 long exposure from Vieques Island, PR Lingulodinium/Gonyaulax

Alexandrium -> PSP Karenia/Gymnodinium breve -> NSP Pfiesteria -> PEAS

http: //tolweb. org/Eukaryotes/3

Cercozoa P: Foraminifera (forams) Ca. CO 3 shells

Cercozoa P: Radiolarians silica shells

http: //tolweb. org/Eukaryotes/3

P: Amoebozoa = amoebas http: //micro. magnet. fsu. edu/moviegall ery/pondscum/protozoa/amoeba/index. html

Acanthamoeba

Naegleria fowleri

EID: Balamuthia mandrillaria

Plasmodial slime mold: Physarum

Cellular slime mold: Dictyostelium