Archaeabacteriaand

EubacteriaSample Species

Christine Joyce M. Javier ☺II – LOVE (‘11-’12)

Domain Archaea

Methanospirillum hungatii

DOMAIN ARCHAEA

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

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).

ARCHAEABACTERIA – Methanospirillum hungatii

Domain: ArchaeaKingdom: EuryarchaeotaPhylum: EuryarchaeotaClass: MethanomicrobiaOrder: MethanomicrobialesFamily: MethanospirillaceaeGenus: MethanospirillumSpecies: M. hungatii

ARCHAEABACTERIA – Methanospirillum hungatii

Type of Cell: ProkaryoticPresence of Nuclear Membrane: AbsentUnicellular/Multicellular: UnicellularPresence of Mitochondria: AbsentMode of Reproduction: Asexual, by

means of cell division.

ARCHAEABACTERIA – Methanospirillum hungatii

Ability to Perform Photosynthesis: No.Mode of Nutrition:

ChemoheterotrophicMotility: They are motile by archaeal

flagella.Habitat: Live in anaerobic conditions.

ARCHAEABACTERIA – Methanospirillum hungatii

ARCHAEABACTERIAMethanospirillum hungatii

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

Domain Bacteria

Streptomyces coelicolor

DOMAIN BACTERIA

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

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.

EUBACTERIA – Streptomyces coelicolor Domain: BacteriaKingdom: BacteriaPhylum: Actinobacteria Class: ActinobacteriaOrder: ActinomycetalesFamily: StreptomycetaceaeGenus: StreptomycesSpecies: S. coelicolor

EUBACTERIA – Streptomyces coelicolorType of Cell: ProkaryoticPresence of Nuclear Membrane: AbsentUnicellular/Multicellular: UnicellularPresence of Mitochondria: AbsentMode of Reproduction: Asexual, by

means of cell division then spore formation.

EUBACTERIA – Streptomyces coelicolorAbility to Perform Photosynthesis: No.Mode of Nutrition:

ChemoheterotrophicMotility: Non-motile, sessile.Habitat: Live in soil, where nutrient

conditions can change dramatically.

EUBACTERIA Streptomyces coelicolor

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

REFERENCES

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