Protists I Lab 3 BIOL 171

Remember!: Classification System

Ancestral Eukaryote We’ll be looking at all of these! Protists are everywhere in Eukarya! “the junk drawer of the eukaryotes”

Ancestral Eukaryote We’ll be looking at all of these! Protists are everywhere in Eukarya! “the junk drawer of the eukaryotes” THIS WEEK

Old School: 6 Kingdoms Plants (Plantae) Animals (Animalia) Fungi (Fungi) Eubacteria Archaeabacteria Protista

Linnaeus [5] Linnaeus [5] (1735) 2 kingdoms Haeckel [6] Haeckel [6] (1866) 3 kingdoms Chatton [7] Chatton [7] (1925) 2 groups Copeland [8] Copeland [8] (1938) 4 kingdoms Whittaker [2] Whittaker [2] (1969) 5 kingdoms WoeseWoese [9][10] (1977,1990) 3 domains [9][10] Animalia Eukaryote Animalia Eukarya VegetabiliaPlantae Protoctista Fungi Protista (not treated) Protista ProkaryoteMonera Archaea Bacteria A constantly changing system…

This week A & B: Euglenozoans Trypanosoma levisii Euglena (alive and prepared) 2 A: Stramenopiles Diatoms (living) Diatomaceous Earth Brown Algae Ectocarpus (living) Sphacelaria (living) Fucus (preserved) Laminaria (preserved) Sargassum (preserved) Water mold Saprolegnia (prepared) 2 B: Alveolates Paramecium caudatum (living) Peridinium (dinoflagellate, living) Other random dinoflagellates 2 C: Rhizarians (Foraminiferans and Radiolarians) - prepared Pro-tip: - Write these down. - Circle exercises in your manual.

Lab Study 1 A & B: Euglenozoans – Trypanosoma levisi (prepared slide) – Euglena (make wet mount)

Trypanosoma and red blood cells

Euglena

Lab Study 2 A: Stramenopiles Diatoms (Bacillariophyta) – make wet mount Also observe diatomaceous earth (the cell wall deposits from diatoms) – make wet mount and look at prepared slides

Diatom diversity

Diatom cell wall made of silica

Stramenopile flagella WHY do they have two? Why might they be different? Is it an adaptation? What is the function?

Brown Algae (Phaeophyta) Living: Ectocarpus and Sphacelaria Preserved: Fucus, Laminaria, Sargassum

Water mold

Lab Study B: Alveolates Ciliate: Paramecium caudatum – (wet mount) in manual Dinoflagellates: mixed dinoflagellates (live & wet mount), and Peridinium (wet mount) not in manual

Paramecium structures

Dinoflaggelates

Lab Study 2 C: Rhizarians Foraminiferans - prepared slides

Radiolarians - prepared slides

Think about… Morphological characteristics Ecology of the organism How does the organism get around? What role do they play in the ecosystem? Do they have any economic value? Where do they live? Don’t know the answer?? It’s probably a great research question! Ask me about it.