Perkinsus marinus: Difference between revisions

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Describe the appearance, habitat, etc. of the organism, and why you think it is important.
Describe the appearance, habitat, etc. of the organism, and why you think it is important.


In length, P.marinus is about 2-4 μm long. Containing two flagella, these protists are able to swim around their marine habitats freely. These protists are primarily located along the North American coast, from Maine to Florida to the Yucatán Peninsula of Mexico.
Perkinsus marinus, belonging to the Eukaryota Domain, is primarily found along the North American coast from Maine to Florida, as well as to the Yucatan Pennisula of Mexico. These protists are primarily located along the North American East coast from Maine to Florida, as well as along the Gulf coast to the Yucatan Pennisula. Known as just Perkinsus, or Dermo, this parasite is responsible for increasing mortality rates of many Eastern oysters.
 
This is an important issue to recognize because these parasites affect many oyster farming operations. Oyster farming is an aquaculture practice that consists of breeding and raising oyster species for pearls, mainly, and for their inner organs, to be eaten, and their shells. Increasing mortality rates of oyster could overall affect many regions of the world, considering that the French oyster industry have be heavily relied on oyster farming since the late 18th century.  


==Genome Structure==
==Genome Structure==
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Interesting features of cell structure; how it gains energy; what important molecules it produces.
Interesting features of cell structure; how it gains energy; what important molecules it produces.
P. marinus is about 2-4 um long.


==Pathogenesis==


 
Found mainly on the East coast of the US, Perkinsus marinus causes the disease known as dermo or perkinsosis. These diseases are characterized by the degradation and mortality in oyster populations. Transmission of this parasite is direct from oyster to oyster. Once the protist is inside its host, it releases trophozoites into host tissue and or their bloodstream. There, they infect more cells or are excreted or released when the host dies. Victims of this disease become stressed, their tissues turn pail, reproductive rates decline, and its growth rate slows, become emaciated, their mantles shrivel and pulls away from the shell, which can cause pockets of pus-like fluid. Blockage of blood vessels and lysis of tissues causes fatality. But surprisingly, oysters can live up to 3 years which active infections.  
==Ecology and Pathogenesis==
 
Habitat; symbiosis; biogeochemical significance; contributions to environment.<br>
 
If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.<br><br>
 
Perkinsus marinus causes the disease known as dermo or perkinsosis. These diseases are characterized by the degradation and mortality in oyster populations.


==References==
==References==
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==Author==
==Author==


Page authored by _____, student of Prof. Bradley Tolar at UNC Wilmington.
Page authored by Kieran Duncan, student of Prof. Bradley Tolar at UNC Wilmington.


   
   


<!-- Do not remove this line-->[[Category:Pages edited by students of Bradley Tolar at UNC Wilmington]]
<!-- Do not remove this line-->[[Category:Pages edited by students of Bradley Tolar at UNC Wilmington]]

Revision as of 23:29, 20 November 2022

This student page has not been curated.

[[1]]


Classification

Eukaryota; Perkinsozoa; Perkinsea; Perkinsida; Perkinsidae


Species

NCBI: [2]


Perkinsus marinus

Description and Significance

Describe the appearance, habitat, etc. of the organism, and why you think it is important.

Perkinsus marinus, belonging to the Eukaryota Domain, is primarily found along the North American coast from Maine to Florida, as well as to the Yucatan Pennisula of Mexico. These protists are primarily located along the North American East coast from Maine to Florida, as well as along the Gulf coast to the Yucatan Pennisula. Known as just Perkinsus, or Dermo, this parasite is responsible for increasing mortality rates of many Eastern oysters.

This is an important issue to recognize because these parasites affect many oyster farming operations. Oyster farming is an aquaculture practice that consists of breeding and raising oyster species for pearls, mainly, and for their inner organs, to be eaten, and their shells. Increasing mortality rates of oyster could overall affect many regions of the world, considering that the French oyster industry have be heavily relied on oyster farming since the late 18th century.

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. P. marinus is about 2-4 um long.

Pathogenesis

Found mainly on the East coast of the US, Perkinsus marinus causes the disease known as dermo or perkinsosis. These diseases are characterized by the degradation and mortality in oyster populations. Transmission of this parasite is direct from oyster to oyster. Once the protist is inside its host, it releases trophozoites into host tissue and or their bloodstream. There, they infect more cells or are excreted or released when the host dies. Victims of this disease become stressed, their tissues turn pail, reproductive rates decline, and its growth rate slows, become emaciated, their mantles shrivel and pulls away from the shell, which can cause pockets of pus-like fluid. Blockage of blood vessels and lysis of tissues causes fatality. But surprisingly, oysters can live up to 3 years which active infections.

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 Kieran Duncan, student of Prof. Bradley Tolar at UNC Wilmington.