complete description about cyanobacteria

1. Cyanobacteria THE FIRST ALGAE!!!!! By shivang jindal

3. Cyanobacteria terminology - Division Cyanophyta - Cyanobacteria ‘formerly known as’ Blue Green Algae - Cyano = blue - Bacteria – acknowledges that they are more closely related to prokaryotic bacteria than eukaryotic algae

4. Bacteria Archeae Other Eukaryotes Animalia Fungi Green Plants Red Algae Prokaryotes Eukaryotes

5. Cyanobacteria Archeae Brown Algae Fungi Green Plants Red Algae BOTANY Diatoms

9. Cyanobacteria Characteristics - Pigments – chl a, phycobiliproteins - phycoerythrin - phycocyanin * Blue Green Color - allophycocyanin - Storage – glycogen - Cell Walls – amino acids, sugars

11. Features Trichome – row of cells Mucilaginous sheath – layer of mucilage outside of the cell wall. } Filament

12. Features Mucilaginous Sheath – Function – protects cells from drying and involved in gliding. Sheath is often colored: Red = acidic Blue = basic Yellow/Brown = high salt

13. Features Heterocyst – thick walled cell, hollow looking. Larger than vegetative cells. FUNCTION – provides the anerobic environment for N fixation. H- heterocyst

14. Anabaena Heterocyst Vegetative cells

27. Lyngbia martensiana Releases chemicals causing dermatitis

31. Oscillatoria (filamentous) with hormogonia

33. Akinete

37. Stromatolites – Shark Bay, W. Australia Cyanobacteria and Understanding the Past