Protistas
17 – 47 phyla
Polyphyletic
Existed way back 1.5 billion years ago:
earliest eukaryotes Free-living, parasitic, motile, stationary Unicellular, colonial, multicellular
When “nots and nos” are what remains
Protozoa
Algae Slime molds
Subkingdom Mastigobionta
No cell walls
Varied locomotion:
Pseudopodia
Cilia
Flagella
Pseudopodia, 3 famous phyla
Rhizopoda
amoeba
Foraminifera
Forams
Actinopoda
Radiolarians/heliozans
Cilia
Macronucleus = major metabolic
activities Micronucleus = genetic reserves Examples: paramecium, stentor Link. link2
Campbell, 9th edition
Flagella, thus, zooflagellates
Example: Trypanosoma spp. (sleeping
sickness) Example: Trichonympha campanulata (Termite symbionts)
Apicomplexa
Sporozoans “spores” for reproduction
Apical complexes for attaching to hosts Example: Plasmodium spp. (Malaria)
Campbell, 9th edition
Subkingdom Phycobionta
Photosynthetic
70% of total food production (world) Unicellular: phytoplanktons
Green algae
Chlorophyll a, b, carotenoids
Cell wall: cellulose Stored food: starch Example: Caulerpa, Chlamydomonas,
Spirogyra, Volvox
Brown algae
Chlorophyll a, c, carotenoids, fucoxanthin
Cell wall: cellulose, algin Stored food:laminarin and manitol Example: Sargassum ,
Postelsia
Red algae
Chlorophyll, carotenoids red and blue
phycobilins Cell wall: cellulose, pectin, agar Stored food: floridean starch Example: Euchema, Gracilaria, Gelidiella
Dinoflagellates
Chlorophyll a, c, carotenoids, peridinin
Cell wall: cellulose Example: Gonyaulax, Gymnodinium Causative agent of “Red Tide”
Diatoms
Chlorophyll a, c, fucoxanthin, diatomin
Cell wall: pectin and silica Stored food; laminarin and oil Example: Navicula monlifera
Euglenoids
Chlorophyll a and b
Cell wall: cellulose
Polyphyletic
Existed way back 1.5 billion years ago:
earliest eukaryotes Free-living, parasitic, motile, stationary Unicellular, colonial, multicellular
When “nots and nos” are what remains
Protozoa
Algae Slime molds
Subkingdom Mastigobionta
No cell walls
Varied locomotion:
Pseudopodia
Cilia
Flagella
Pseudopodia, 3 famous phyla
Rhizopoda
amoeba
Foraminifera
Forams
Actinopoda
Radiolarians/heliozans
Cilia
Macronucleus = major metabolic
activities Micronucleus = genetic reserves Examples: paramecium, stentor Link. link2
Campbell, 9th edition
Flagella, thus, zooflagellates
Example: Trypanosoma spp. (sleeping
sickness) Example: Trichonympha campanulata (Termite symbionts)
Apicomplexa
Sporozoans “spores” for reproduction
Apical complexes for attaching to hosts Example: Plasmodium spp. (Malaria)
Campbell, 9th edition
Subkingdom Phycobionta
Photosynthetic
70% of total food production (world) Unicellular: phytoplanktons
Green algae
Chlorophyll a, b, carotenoids
Cell wall: cellulose Stored food: starch Example: Caulerpa, Chlamydomonas,
Spirogyra, Volvox
Brown algae
Chlorophyll a, c, carotenoids, fucoxanthin
Cell wall: cellulose, algin Stored food:laminarin and manitol Example: Sargassum ,
Postelsia
Red algae
Chlorophyll, carotenoids red and blue
phycobilins Cell wall: cellulose, pectin, agar Stored food: floridean starch Example: Euchema, Gracilaria, Gelidiella
Dinoflagellates
Chlorophyll a, c, carotenoids, peridinin
Cell wall: cellulose Example: Gonyaulax, Gymnodinium Causative agent of “Red Tide”
Diatoms
Chlorophyll a, c, fucoxanthin, diatomin
Cell wall: pectin and silica Stored food; laminarin and oil Example: Navicula monlifera
Euglenoids
Chlorophyll a and b
Cell wall: cellulose