Bacteria and cyanobacteria

Bacteriology

1. Chapter # 2 Bacteria and cyanobacteria

2. Morphology of bacteria

3. Structure of bacterial cell Capsule Cell wall Cell membrane Cytoplasm Nucleoid Plasmid Ribosomes Flagellum Pilli

4. Growth in bacteria Lag phase Log phase Stationary phase Death or decline phase

5. Reproduction Asexual method Binary fisson endospore formation Sexual method Bacterial recombination transformation Transduction Conjugation

6. Binary fission

7. Endospore formation Video link https ://highered.mheducation.com/sites/9834092339/student_view0/chapter28/bacterial_endospore_formation.html

8. Bacterial transformation (Griffith experiment) https://www.youtube.com/watch?v=4LU71ubTCZA

9. Bacterial conjugation

10. Bacterial transduction

11. Specialized and generalized transduction https:// www.youtube.com/watch?v=ZxbPYekSTLg (specialized transduction ) https:// www.youtube.com/watch?v=C44ymgwgA-o (generalized transduction)

12. Nostoc Habitat Structure of colony Structure of cell Reproduction method

13. Habitat Nostoc is a diverse genus of  cyanobacteria . They are found in gelatinous colonies, composed of filaments called " trichomes " surrounded by a thin sheath. They are common in both aquatic and terrestrial habitats

14. Structure of colony Round colony Gelatinous material contain internal fillamnets called trichomes

15. Structure of nostoc cell Hetrocyst Trichomes Akinites

16. Reproduction Vegetative reproduction Hormogonia Akinites or anthrospores Hetrocysts Endospore formation