Haloarcula argentinensis

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Classification

Domain: Cellular Organisms

Kingdom: Archaea

Phylum: Euryarchaeota

Class: Halobacteria

Order: Halobacteriales

Family:Halobacteriaceae

Genus: Haloarcula

Species: argentinensis

Species

NCBI: Taxonomy

Haloarcula argentinensis

Description and Significance

Recently Haloarcula argentinensis was isolated from Argentinian salt flats. Along with argentinensis, mukohaitaei was found within the same location. Haloarcula are extremely halophilic archaea. argentinensis thrives in soil concentrations of 2.5 M NaCl and 100 mM Mg 2+. After a week of being culture on agar plates they formed colonies that were 2mm in diameter, the individual cells that formed were mostly triangular disks. After prolonged culture, argentinensis produced a glutinous extracellular material.

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?

Cell Structure, Metabolism and Life Cycle

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

Ecology and Pathogenesis

Habitat: Haloarcula argentinensis thrives in environments with a saline concentration of 2.5 M NaCl and temperatures around 40 degrees celsius. Haloarcula argentinensis also grew well in soil with concentrations of 4.5 M NaCl.

symbiosis; biogeochemical significance; contributions to environment.

If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.

References

Tamura, T., S. Watanabe, and K. Ihara. "Haloarcula argentinensis sp. nov. and Haloarcula mukohataei sp. nov., Two New Extremely Halophilic Archaea Collected in Argentina." International Journal of systematic bacteriology 47 (): 73-77. Print.

Author

Page authored by Andrew Stoffel, student of Prof. Ned Walker and Kazem Kashefi at Michigan State University.