Genus S and J

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Classification

Domain: Bacteria; Phylum: Proteobacteria; Class: Gammaproteobacteria; Order: Pseudomonadales; Family: Pseudomonadaceae; Genus: Pseudomonas; Species: P. aeruginosa

Species

NCBI: Taxonomy

Genus species

Habitat Information

Describe the location and conditions under which the organism was isolated.

Genome Structure

Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence? Include S Ribosomal sequence that you obtained from PCR and sequencing here.

Cell Structure, Metabolism and Life Cycle

Interesting features of cell structure; how it gains energy; what important molecules it produces.

This microorganism is bacillus (rod shaped) and its colonial morphology is small, entire, convex, mucoid, and an opaque/tan color.

Physiology and Pathogenesis

Biochemical characteristics, enzymes made, other characteristics that may be used to identify the organism; contributions to environment (if any).
If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.

This organism is gram positive. This means it has a thick layer of peptidoglycan in its cell wall. It is endospore positive meaning that it can form spores when the environment is unfavorable and wait until conditions change. This increasing pathogenicity because it is harder to destroy in the body without harming good cells.

It produces the enzyme deaminase, which removes the amine group from the amino acid phenylalanine and releases it as ammonia, producing phenylpyruvic acid as a result. When 10% ferric chloride is added to this medium, the presence of phenylpyruvic acid causes the media to turn dark green, a positive test result for deaminase (see picture below).

References

[Sample reference] Takai, K., Sugai, A., Itoh, T., and Horikoshi, K. "Palaeococcus ferrophilus gen. nov., sp. nov., a barophilic, hyperthermophilic archaeon from a deep-sea hydrothermal vent chimney". International Journal of Systematic and Evolutionary Microbiology. 2000. Volume 50. p. 489-500.

Author

Page authored by Stephanie N. and Jessica G., students of Prof. Kristine Hollingsworth at Austin Community College.