Haemocytic and humoral activities of eastern and Pacific oysters following challenge by the protozoan Perkinsus marinus
Eastern oysters (Crassostrea virginica) and Pacific oysters (Crassostrea gigas) were exposed to the protozoan parasite Perkinsus marinus. Pacific oysters were less susceptible to P. marinus infection than eastern oysters. The concentration of circulating haemocytes, percentage of granulocytes and pl...
Published in: | Fish & Shellfish Immunology |
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LSU Digital Commons
1995
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ftlouisianastuir:oai:digitalcommons.lsu.edu:animalsciences_pubs-1848 2023-06-11T04:11:04+02:00 Haemocytic and humoral activities of eastern and Pacific oysters following challenge by the protozoan Perkinsus marinus La Peyre, Jerome F. Chu, Fu Lin E. Meyers, Judith M. 1995-01-01T08:00:00Z https://digitalcommons.lsu.edu/animalsciences_pubs/849 https://doi.org/10.1016/S1050-4648(05)80012-9 unknown LSU Digital Commons https://digitalcommons.lsu.edu/animalsciences_pubs/849 doi:10.1016/S1050-4648(05)80012-9 Faculty Publications Crassostrea gigas Crassostrea virginica Eastern and Pacific oysters haemagglutinin haemocyte host defence lysozyme Perkinsus marinus protein protozoan parasite text 1995 ftlouisianastuir https://doi.org/10.1016/S1050-4648(05)80012-9 2023-05-28T18:12:50Z Eastern oysters (Crassostrea virginica) and Pacific oysters (Crassostrea gigas) were exposed to the protozoan parasite Perkinsus marinus. Pacific oysters were less susceptible to P. marinus infection than eastern oysters. The concentration of circulating haemocytes, percentage of granulocytes and plasma haemagglutinin titre increased in Pacific oysters exposed to P. marinus as compared to unexposed Pacific oysters. Similar increases were not observed in eastern oysters exposed to P. marinus. The percentage of granulocytes, percentage of phagocytic haemocytes, number of zymosan per phagocytic haemocytes and plasma haemagglutinin titre were greater in Pacific oysters than in eastern oysters heavily infected with P. marinus. However, the concentration of circulating haemocytes and the concentrations of plasma protein and lysozyme were lower in Pacific oysters. The data suggest that Pacific oysters may offer a less favourable environment for the development of P. marinus as compared to eastern oysters for at least two possible reasons; i.e. the elevated cellular and humoral activities may degrade the parasite more effectively, and/or the lower plasma protein levels may limit parasite growth. © 1995 Academic Press Limited. Text Crassostrea gigas LSU Digital Commons (Louisiana State University) Pacific Fish & Shellfish Immunology 5 3 179 190 |
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LSU Digital Commons (Louisiana State University) |
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unknown |
topic |
Crassostrea gigas Crassostrea virginica Eastern and Pacific oysters haemagglutinin haemocyte host defence lysozyme Perkinsus marinus protein protozoan parasite |
spellingShingle |
Crassostrea gigas Crassostrea virginica Eastern and Pacific oysters haemagglutinin haemocyte host defence lysozyme Perkinsus marinus protein protozoan parasite La Peyre, Jerome F. Chu, Fu Lin E. Meyers, Judith M. Haemocytic and humoral activities of eastern and Pacific oysters following challenge by the protozoan Perkinsus marinus |
topic_facet |
Crassostrea gigas Crassostrea virginica Eastern and Pacific oysters haemagglutinin haemocyte host defence lysozyme Perkinsus marinus protein protozoan parasite |
description |
Eastern oysters (Crassostrea virginica) and Pacific oysters (Crassostrea gigas) were exposed to the protozoan parasite Perkinsus marinus. Pacific oysters were less susceptible to P. marinus infection than eastern oysters. The concentration of circulating haemocytes, percentage of granulocytes and plasma haemagglutinin titre increased in Pacific oysters exposed to P. marinus as compared to unexposed Pacific oysters. Similar increases were not observed in eastern oysters exposed to P. marinus. The percentage of granulocytes, percentage of phagocytic haemocytes, number of zymosan per phagocytic haemocytes and plasma haemagglutinin titre were greater in Pacific oysters than in eastern oysters heavily infected with P. marinus. However, the concentration of circulating haemocytes and the concentrations of plasma protein and lysozyme were lower in Pacific oysters. The data suggest that Pacific oysters may offer a less favourable environment for the development of P. marinus as compared to eastern oysters for at least two possible reasons; i.e. the elevated cellular and humoral activities may degrade the parasite more effectively, and/or the lower plasma protein levels may limit parasite growth. © 1995 Academic Press Limited. |
format |
Text |
author |
La Peyre, Jerome F. Chu, Fu Lin E. Meyers, Judith M. |
author_facet |
La Peyre, Jerome F. Chu, Fu Lin E. Meyers, Judith M. |
author_sort |
La Peyre, Jerome F. |
title |
Haemocytic and humoral activities of eastern and Pacific oysters following challenge by the protozoan Perkinsus marinus |
title_short |
Haemocytic and humoral activities of eastern and Pacific oysters following challenge by the protozoan Perkinsus marinus |
title_full |
Haemocytic and humoral activities of eastern and Pacific oysters following challenge by the protozoan Perkinsus marinus |
title_fullStr |
Haemocytic and humoral activities of eastern and Pacific oysters following challenge by the protozoan Perkinsus marinus |
title_full_unstemmed |
Haemocytic and humoral activities of eastern and Pacific oysters following challenge by the protozoan Perkinsus marinus |
title_sort |
haemocytic and humoral activities of eastern and pacific oysters following challenge by the protozoan perkinsus marinus |
publisher |
LSU Digital Commons |
publishDate |
1995 |
url |
https://digitalcommons.lsu.edu/animalsciences_pubs/849 https://doi.org/10.1016/S1050-4648(05)80012-9 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Faculty Publications |
op_relation |
https://digitalcommons.lsu.edu/animalsciences_pubs/849 doi:10.1016/S1050-4648(05)80012-9 |
op_doi |
https://doi.org/10.1016/S1050-4648(05)80012-9 |
container_title |
Fish & Shellfish Immunology |
container_volume |
5 |
container_issue |
3 |
container_start_page |
179 |
op_container_end_page |
190 |
_version_ |
1768385921106837504 |