The document discusses two microorganisms: Methanospirillum hungatii, an anaerobic archaeon characterized by its spiral-shaped cells and ability to produce methane for fuel, and Streptomyces coelicolor, a gram-positive bacterium known for antibiotic production and environmental adaptability. Both are prokaryotic, unicellular, and play significant roles in ecological processes, with economic importance in waste treatment and nutrient cycling. They lack a nuclear membrane and do not perform photosynthesis.

3. Methanospirillum hungatii
DOMAIN ARCHAEA

4. Coloured transmission electron micrograph of
the archaeabacteria Methanospirillum
hungatii. It is here undergoing cell division.

5. ARCHAEABACTERIA – Methanospirillum hungatii
 It is mostly gram negative, but the
multicellular filaments at the end tests as
gram positive.
 The cultures are usually yellow in
color, circular in shape, and convex with
lobate margins.
 The cells are spiral shaped (curved rods).
 It is very sensitive to oxygen (anaerobic).

6. ARCHAEABACTERIA – Methanospirillum hungatii
 Domain: Archaea
 Kingdom: Euryarchaeota
 Phylum: Euryarchaeota
 Class: Methanomicrobia
 Order: Methanomicrobiales
 Family: Methanospirillaceae
 Genus: Methanospirillum
 Species: M. hungatii

7. ARCHAEABACTERIA – Methanospirillum hungatii
 Type of Cell: Prokaryotic
 Presence of Nuclear Membrane: Absent
 Unicellular/Multicellular: Unicellular
 Presence of Mitochondria: Absent
 Mode of Reproduction: Asexual, by
means of cell division.

8. ARCHAEABACTERIA – Methanospirillum hungatii
 Ability to Perform Photosynthesis: No.
 Mode of Nutrition: Chemoheterotrophic
 Motility: They are motile by archaeal
flagella.
 Habitat: Live in anaerobic conditions.

9. ECONOMIC IMPORTANCE
• to anaerobically treat organic
wastes, such as municipal wastewater or
industrial waste; can sometimes be good
at degrading particularly complex wastes
• production of methane that can become
a source of fuel
ARCHAEABACTERIA
Methanospirillum hungatii

11. Streptomyces coelicolor
DOMAIN BACTERIA

12. Bacterial antibiotic production. Colony of
Streptomyces coelicolor bacteria growing on an
agar medium (not seen) in a petri dish.

13. EUBACTERIA – Streptomyces coelicolor
 A filamentous, high G-C, gram-positive
bacteria, adaptable to environmental
stress.
 Streptomyces coelicolor release pigments
that are blue/green in alkali and red in
acidic conditions, thereby giving the
bacterial colonies those colors under the
respective conditions.

14. EUBACTERIA – Streptomyces coelicolor
 Domain: Bacteria
 Kingdom: Bacteria
 Phylum: Actinobacteria
 Class: Actinobacteria
 Order: Actinomycetales
 Family: Streptomycetaceae
 Genus: Streptomyces
 Species: S. coelicolor

15. EUBACTERIA – Streptomyces coelicolor
 Type of Cell: Prokaryotic
 Presence of Nuclear Membrane: Absent
 Unicellular/Multicellular: Unicellular
 Presence of Mitochondria: Absent
 Mode of Reproduction: Asexual, by
means of cell division then spore
formation.

16. EUBACTERIA – Streptomyces coelicolor
 Ability to Perform Photosynthesis: No.
 Mode of Nutrition: Chemoheterotrophic
 Motility: Non-motile, sessile.
 Habitat: Live in soil, where nutrient
conditions can change dramatically.

17. ECONOMIC IMPORTANCE
• metabolizing other organism's remains
• can degrade chitin and other compounds
• integral part of the global carbon cycle
• takes part in the nitrogen cycle
• produces many different types of
antibiotics
EUBACTERIA
Streptomyces coelicolor

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en.wikipedia.com
www.sciencephotolibrary.com
www.uniprot.org
www.chacha.com
microbewiki.kenyon.edu
uk.ask.com/wiki
REFERENCES