Host Defense Mechanisms in the Crayfish: the Effect of Injection with Live or Killed Bacteria.

<p>An increase in attachment of SRBCs to <em>Procambarus clarkii</em> hemocytes has been shown after the crayfish were injected with a live or killed <em>Pseudomonas</em> strain RS2b. The increase in attachment occurred at 8 hours post injection and peaked at 24 hours for both experimental groups. The population of hemocytes with receptors for LPS and mannose also increased at 8 hours post injection and peaked at 24 hours for both experimental groups. At 96 hours post injection the number of receptor bearing hemocytes and hemocytes bound to SRBCs began to decrease to the level of the control for both groups. The protein concentration of hemolymph from the experimental groups remained stable at 8 and 24 hours post injection and increased at 96 hours. The correlation of the protein concentration increase at 96 hours with the decrease of receptor bearing hemocytes may be due to the degranulation of the receptor bearing hemocytes.</p>

Name thesis:degree_name

MS (Master of Science)

Level thesis:degree_level

Thesis - unrestricted

Discipline thesis:degree_discipline

Biology

Year dc:date.issued

2003

Author dc:creator

• Goins, Kimberly R.

• LPS and mannose receptors
• Phagocytosis
• Hemocytes
• Invertebrate Immunology
• Biology
• Life Sciences

Statement dc:rights

• Copyright by the authors.

Repository record dc:identifier

https://dc.etsu.edu/etd/757

OAI identifier oai:identifier

oai:dc.etsu.edu:etd-1914