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Histopathological alterations associated with Perkinsus spp. infection in the softshell clam Mya arenaria


, : Histopathological alterations associated with Perkinsus spp. infection in the softshell clam Mya arenaria. Parasite 5(3): 263-271

Mya arenaria collected from the Chester River in the upper Chesapeake Bay, Maryland, USA, showed the presence of Perkinsus spp. in about 12% of clams examined (28 of 240). The infection seemed to run a mild course with the host prevailing in encapsulating invading parasites. The gills appeared to be the major site of infection. However, the parasite was also found in the digestive gland, gonads and kidneys and occasionally in the tissue and sinuses of adductor muscles.

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Accession: 003161169

DOI: 10.1051/parasite/1998053263

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Related references

Mclaughlin, S.M.; Faisal, M., 1998: In vitro propagation of two Perkinsus species from the softshell clam Mya arenaria. Two continuous, axenic cultures of Perkinsus spp. (H49 and G117) were obtained from the softshell clam Mya arenaria collected from Swan Point in the Chester River, Chesapeake Bay (Maryland). isolate H49 was obtained from the hemolymph of a heavily...

McLaughlin, S.M.; Faisal, M., 1999: A comparison of diagnostic assays for detection of Perkinsus spp. in the softshell clam Mya arenaria. Perkinsus spp. infections are increasing in prevalence and intensity in softshell clams Mya arenaria, a commercially and ecologically important bivalve of the Chesapeake Bay. In the present study, the gills, labial palps, rectal tissue, and hemoly...

McLaughlin, S.M.; Tall, B.D.; Shaheen, A.; Elsayed, E.E.; Faisal, M., 2000: Zoosporulation of a new Perkinsus species isolated from the gills of the softshell clam Mya arenaria. A gill-associated Perkinsus sp. isolated from the softshell clam (Mya arenaria) in Chesapeake Bay, Maryland, USA, in 1998 is described as a new species, P. chesapeaki sp. nov. Examination of the parasite in seawater cultures revealed life cycle st...

Mclaughlin, S.M.; Faisal, M., 1999: A comparison of diagnostic assays for the detection of Perkinsus spp. in the softshell clam Mya arenaria. Aquaculture 172(1 2): 7-204

Mclaughlin, S.M.; Elsayed, E.E.; Faisal, M., 2000: Analysis of extracellular proteins of two Perkinsus spp. isolated from the softshell clam Mya arenaria in vitro. Biochemical characterization of the extracellular proteins (ECP) of two softshell clam Perkinsus spp. cloned isolates, Perkinsus chesapeaki isolate G-117 and Perkinsus marinus H-49, was performed and compared to that of the oyster-derived P. marin...

McLaughlin, S.M.; Elsayed, E.E.; Faisal, M., 2000: Analysis of extracellular proteins of two Perkinsus spp. isolated from the softshell clam Mya arenaria in vitro. Biochemical characterization of the extracellular proteins (ECP) of two softshell clam Perkinsus spp. cloned isolates, Perkinsus chesapeaki isolate G-117 and Perkinsus marinus H-49, was performed and compared to that of the oyster-derived P. marin...

Kotob, S.I.; McLaughlin, S.M.; Berkum, P. van; Faisal, M., 1999: Characterization of two Perkinsus spp. from the softshell clam, Mya arenaria using the small subunit ribosomal RNA gene. Sequence analysis and riboprinting of the small subunit ribosomal RNA genes were used to characterize two morphologically different Perkinsus species isolates from the gill (G117) and the hemolymph (H49) of the softshell clam, Mya arenaria. Sequen...

Kotob, S.I.; McLaughlin, S.M.; van Berkum, P.; Faisal, M., 1999: Characterization of two Perkinsus spp. from the softshell clam, Mya arenaria using the small subunit ribosomal RNA gene. Sequence analysis and riboprinting of the small subunit ribosomal RNA genes were used to characterize two morphologically different Perkinsus species isolates from the gill (G117) and the hemolymph (H49) of the softshell clam, Mya arenaria. Sequen...

Kotob, S.I.; McLaughlin, S.M.; Van Berkum, P.; Faisal, M., 1999: Discrimination between two Perkinsus spp. isolated from the softshell clam, Mya arenaria, by sequence analysis of two internal transcribed spacer regions and the 5.8S ribosomal RNA gene. The internal transcribed spacer (ITS-1 and ITS-2) regions and the 5.8S ribosomal RNA gene of 2 Perkinsus spp. (G117 and H49) originating from the softshell clam, Mya arenaria, of the Chesapeake Bay, USA, were cloned and sequenced to obtain evidenc...

Mclaughlin, S.M.; Faisal, M., 1997: Isolation of Perkinsus sp from the softshell clam. Journal of Shellfish Research 16(1): 335