Bacteria, Cyanobacteriam Unicellular Protists

Three Basic Forms

1) Rod-Shaped Bacilli

2) Spherical Cocci

3) Long, curve spirilla

Cyanobacteria (Nucleus)

Lack a well-organized nucleus.

Cyanobacteria (different from other prokaryotes)

Chlorophyll and several over pigments.

• A cell wall

Cyanobateria (cell wall)

• Outer gelatinous matrix

• Inner cellulose wall

Cyanobacteria (Forms)

1) Thread-like filaments

2) More or less spherical aggregations

Cyanobacteria (Reproduction)

Asexually by fission or fragmentation

Cyanobacteria (environment)

soil, marine and freshwater environments

Oscillatoria (is what/found where)

A common algae found in ponds, wet ditches and other small bodies of fresh water.

Oscillatoria (Reproduction)

Asexually through formation of hormogonia

Hormogonia (meaning)

Sections of the filament that are broken off by formation of separation disk.

Composed of gelatinous material

Nostoc (Filaments)

Individual cells or plants adhere to one another to form a sphere or compound macrocolony.

*Cells of filament are larger cells called heterocysts

Gloecapsa (cell)

Enclosed by concentric gelatinous sheaths.

Gloecapsa (Nucleoplasm)

Well-defined nucleus is not present.

Tolypothrix (Branched Filament)

Is called false branching. They branch from below the heterocysts.

Cyanophora (Flagellates)

Two unicellular flagellates that contain cyanobacterial symbionts (cyanelles).

Serial endosymbiont theory of eukaryote evolution

Cyanobacteria (blue-greens) Includes this organisms

Oscillatoria, Nostoc, Gloecapsa, Tolypothrix, Cyanophora, Glaucocystis.

Heterotrophic Protists Include three phyla

Oomycota, Myxomycota, and Dictyosteliomycota.

Myxomycota (Found where)

Moist soil, wood or decaying vegetation.

Myxomycota (sporocarps)

Spore-containing structures. Usually conspicuous in most species becuase they form in exposed positions on the organims.

Oomycota (cell walls)

It consists largely of cellulose.

Saprolegnia (Structures)

Hyphae, oogonia, antheridia, zoosporangia

Dictyosteliomycota (Are known as)

Cellular slime molds.

Dictyosteliomycota (Found where)

Inhabit the soil, dung, or litter where they eat bacteria.

Dictyosteliomycota (Structure)

Uninucleate, free-living amoeba-like cell.

Dictyosteliomycota (Under certain condition)

Myxamoeba aggregate to form a pseudoplasmodium while they retain their individuality. Forms into a spore-containing structure.

Unicellular Algae (four phyla of autotrophs)

Dinophyta, Bacillariophyta and Euglenophyta

Dinophyta, Bacillariophyta and Euglenophyta (chlorophyll)

Chlorophyll a, Chlorophyll b, and certain carotenoids

Dynophyta (Structures)

Dinoflagellates are unicellular and biflagellate organisms

Dynophyta (Flagellum)

Located towards the posterior end of the cell and other in a lateral groove encircling the middle of the cell.

Chrysophyta (classes)

Golden algae (Chrysophyceae), Synura, and yellow-green algae (Xanthophyceae) Vaucheria.

Chrysophyta (Chlorophyll)

carotenoids give the cells the colour of grass green.

Chrysophyta (Tribonema filament)

break up into smaller fragments. ‘H’ pieces can be detected as a result of this specific type of cell wall construction. The open ends of a cylinder.

Chrysophyta (Tribonema cell wall)

Two equal, slightly overlapping halves.

Bacillariophyta (Centric and pennate diatom)

• Centric - Bilateral Symmetry

• Pennate - Radial Symmetry

Euglenophyta (Flagellated)

Unicellular Flagellated organisms that lack a cell wall.

Euglenophyta (Sexual reproduction)

They have never been observed to reproduce sexually.

Bacillus subtilis

subtilis spores

Sarcina lutea

Spirillum volutans

Micrococcus aureus

Streptoccocus viridans

Streptococcus lactis

Diplococcus pneumoniae

Clostridium tetani

Corynebacterium diphtheriae

Salmonella typehosa

Mycobacterium tuberculosis

Microcystis and Gloeocapsa

Anabaena

Nostoc

Merismopedia

Gloeotrichia

Lyngbya

Oscillatoria

Life syscle of a slime mold - physarum polycephalum

Saprolegnia, zoosporangium

Stemonitis

Saprolegnia, antheridium & oogonium

Saprolegnia, oospores

Diatom (valve view)

Peridinium

Ceratium

Diatom (Girdle view)

Euglena