Anabaena and Nostoc

Details of Cyanobacteria Nostoc and Anabaena

1. Anabaena & Nostoc In full details Prepared by: Ezel Anne R. Benitez

2. Anabaena & Nostoc Domain: Prokarya no true nucleus and no membrane bound organelles . Kingdom: Bacteria Phylum: Cyanobacteria acquire energy through photosynthesis blue-green algae.

3. Order: Nostocales they have trichomes and lack endospores and exospores . Family: Nostocaceae category of blue-green algae that form heterocysts and have unbranched trichomes . Nitrogen fixing Anabaena & Nostoc

4. Anabaena Genus :  Anabaena Known for its intercalary heterocysts and isolated or amorphous filaments.

5. Anabaena Comprehensive Description Filamentous ( trichomes ) May be coiled or straight With occational heterocysts Terminal cells may/ may not be narrowed Akinetes may form Rare: trichomes may be encased in mucilage Free floating Filaments are solitary or clustered Cell Size: 4-50um ( Akinetes >heterocyst>vegetative cell) Sraight Coiled Vegetative cell

6. Anabaena Habitat (based on 14 specimen) Depth range: 0-1m Large Temperature range: up to 74°C Large Salinity Range Source :  Ocean Biogeographic Information System Sraight Coiled Vegetative cell

7. Anabaena Reproduction: trichome fragmentation (usually at heterocytes ) and by akinetes . Motility: gliding type movement Predators: Bosmina longirostris Sraight Coiled

8. Nostoc Genus: Nostoc contains organisms that form spherical colonies of filaments embedded in a gelatinous substance Nostoc

9. Nostoc Comprehensive Description cylindrical, spherical or ovoid cells Heterocysts are intercalary Size of colonies range from microscopic to 20cm diameter Some form a gelatinous colony

10. Nostoc Habitat: Depth: 0-0m Temperature range: adapted to extreme environments Reproduction: by fragmentation Nostoc flagelliforme Edible, delicacies in Asia

11. Nostoc Predators: Leptodiaptomus siciloides Holopedium gibberum Daphnia pulex Diaphanosoma leuchtenbergianum

12. Sources: http:// bioweb.uwlax.edu/bio203/2010/towers_albe/Classification.htm http:// eol.org/pages/11687/details http://bioweb.uwlax.edu/bio203/s2008/kaisersa_jose/Life%20and%20Interactions.html http:// www.britannica.com/EBchecked/topic/420477/Nostoc http:// web2.uwindsor.ca/courses/biology/fackrell/Microbes/11725.htm http://eol.org/pages/11781/details