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Transcript 
The Eukaryotes 12a: 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)
(adult)
Spores
(adult)
(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)
CaCO3 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
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