Classification of Microorganisms

Subdivision used to classify organisms, e.g. domain, kingdom, phylum

The science of classification of organisms

The evolutionary history of a group of organisms; phylogenetic relationships are evolutionary relationships

• Bacteria
• Archaea
• Eukarya

• Methanogens-strict anaerobes that produce methane (CH4) from carbon dioxide and hydrogen
• Extreme halophiles-which require high concentrations of salt for survival.
• Hyperthermophiles-which normally grow in extremely hot environments

• Animals
• Plants
• Fungi

The Domain Archaea

The first name of the scientific name (binomial); the taxon between family and species.

The second or species name in a scientific binomial.

The system that gives two names to each organism

Eukaryotic species

• All organisms
• Domain
• Kingdom
• Phylum
• Class
• Order
• Family
• Genus
• Species - most specific

Bacteria and Archaea

Enzyme-linked immunosorbent assay

It is fast and can be read by a computer scanner. Used in AIDS testing to detect the presence of antibodies against HIV.

Used to identify antibodies in a patient's serum. Test for proteins and confirms HIV infection and Lyme disease

A test for determining which phages a bacterium is susceptible.

A technique that uses DNA probes to detect the presence of specific DNA in restriction fragments separated by electrophoreis.

fluorescent in situ hybridization; Fluorescent dye-labeled RNA or DNA probes are used to specifically stain microorganisms in place.

ELISA and Western Blot