Shewanella loihica: Difference between revisions

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==Cell structure and metabolism==
==Cell structure and metabolism==
Describe any interesting features and/or cell structures; how it gains energy; what important molecules it produces.
Describe any interesting features and/or cell structures; how it gains energy; what important molecules it produces.
The ''S. loihica'' is noted as being gram-negative and motile through polar flagella.


==Ecology==
==Ecology==

Revision as of 03:00, 2 May 2007

A Microbial Biorealm page on the genus Shewanella loihica

Classification

Higher order taxa

Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales; Shewanellaceae; Shewanella; Shewanella loihica

Species

Shewanella loihica

Description and significance

Shewanella loihica.jpg

PV-4T marine bacterial strain of Shewanella loihica was isolated at the deep-sea, hydrothermal Naha Vent from iron-rich microbial mats on the South Rift of Loihi Seamount, Hawaii, in the Pacific Ocean. It is noted as orange and rodlike with a mean length of 1.8 µm and a mean width of 0.7 µm.

gram-negative, motile through use of polar flagella, anaerobic, and psychrotolerant at temperatures between 0-42 degrees C.

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? Does it have any plasmids? Are they important to the organism's lifestyle?

The loihica genome is recorded at having 4602594 nucleotides, 3859 protein genes, and 124 RNA genes. PV-4(T) exhibited 16S rRNA gene sequence similarity levels of 99.6% to Shewanella aquimarina, 97.5 % to S. marisflavi, 50.5 % to S. aquimarina and 8.5 % to S. marisflavi.

Cell structure and metabolism

Describe any interesting features and/or cell structures; how it gains energy; what important molecules it produces.

The S. loihica is noted as being gram-negative and motile through polar flagella.

Ecology

Describe any interactions with other organisms (included eukaryotes), contributions to the environment, effect on environment, etc.

Pathology

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

Application to Biotechnology

They are capable of using a variety of compounds as electron acceptors, including oxygen, iron, manganese, uranium, nitrate, nitrite, fumarate, to name a few. This ability makes Shewanella important for bioremediation of contaminated metals and radioactive wastes.

Current Research

Enter summaries of the most recent research here--at least three required

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.

Edited by Niru Sivakumar, a student of Rachel Larsen and Kit Pogliano