Studies on the Life History of Vahlkampfia Patuxent N.SP., Parasitic in the Oyster, With Experiments Regarding Its Pathogenicity*

Hogue, Mary Jane

doi:10.1093/oxfordjournals.aje.a118040

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…It was evident from microscopic studies of living and stained specimens that the amebae were intermediate between The 2nd new ameba, Pseudovahlkampju emersoni, is of particular interest because of its association with the digestive tract and gill surfaces of decapod crustacea. The round hyaline form which resumes the ameboid shape without emerging from a cyst resembles those described in species of Flabellula described by Hogue (28,29) from the digestive tract of oysters. It seems likely that P. emersoni, F. patuxent Hogue, and F. culkinsi Hogue are inquilinic in or on shellfish when adequate bacterial food organisms are present, or occur as rounded resistant forms which pass through the digestive tract after accidental ingestion.…”

Section: Discussionsupporting

confidence: 70%

Marine Amebae From Clean and Stressed Bottom Sediments of the Atlantic Ocean and Gulf of Mexico*^,^†^,^‡

Sawyer

1980

The Journal of Protozoology

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SYNOPSIS Amebae isolated from sediments of the Atlantic Ocean and Gulf of Mexico were maintained in continuous culture and most were identified to genus and species. Twenty‐six species representing 12 genera were recognized from existing literature and several others (Flabellula, Mastigamoeba, Cochliopododium) were identified only to genus. One ameboflagellate and several small limax‐type amebae which require further study also were isolated. Other sarcodmids belonging to the Heliozoida, Testocida, Leptomyxida, and Proteomyxida were identified only tentatively. the distribution of the amebae and ameba‐like organisms was tabulated for the following geographic areas: Atlantic Ocean near Long Island, New York: Atlantic Ocean 16‐65 miles offshore from New York and New Jersey: Atlantic Ocean 1‐50 miles offshore from Maryland and Delaware: and the Gulf of Mexico 3.5‐41 miles offshore from the southeastern United States. Amebae present in shellfish holding trays at Lewis. Delaware, were isolated, and identified to compare the distribution of species in laboratory tanks with those present in natural ocean bottoms. Published accounts of each collection site were reviewed to obtain specific data on contamination with sewage wastes, acid wastes, dredge spoils, and petroleum hydrocarbons. Two previously undescribed amebae were found to represent new genera and species and are described herein, one from the Delaware mariculture facility, and the other from the digestive tract of the blue crab, Callinectes sapidus, and the gill surface of the lady crab, Ovalipes ocellatus. Sarcodinids present in clean or stressed environments were listed, and genera and species that were widespread or apparently geographically restricted were recorded.

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Section: Discussionsupporting

confidence: 70%

Marine Amebae From Clean and Stressed Bottom Sediments of the Atlantic Ocean and Gulf of Mexico*^,^†^,^‡

Sawyer

1980

The Journal of Protozoology

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“…The gregarine protozoon, Nematopsis ostrearum (121), is widespread in the same area and host, but does not appear responsible for unusual mortalities (42, 73). Harmless amoebae (Vahlkampfia patuxent) have been recorded from the intestine of C. virginica (54), and several saprozoic and bacteriafeeding protozoa have been listed from oysters by authors (16,17,102,113,129) who did not view them as primarily injurious. As already stated, Hexamita has been ranked high among oyster pathogens (89,124).…”

Section: Oysters and Other Organismsmentioning

confidence: 99%

Microecological Factors in Oyster Epizootics

Laird¹

1961

Can. J. Zool.

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On oyster beds as elsewhere, mud-water interfa-exhibit a biological film harboring saprobic microo~anisms. The nbundallce of thew is dimctly proportional to the amount of decornposin~f orpanic matter present. Different cornmunities of protozoa and bacteria characterize each of the levels of organic pollution, which may be defined biolo~ically in terms of a modification of the "Sapmbiensystem" of liolkwita ancl S I a m n , IVhile the microoqanims concerned are not conspic~ra~~s on clean s u b s t r m e x a p t where especially favorable conditions are afforded certain of them by some dead animal or plant, their general abundanm is indicative ~, f pollution. 'l'his follows nveraccumulation of reducible de osits, i~iitiated by irregular tidal flushing, freshets, and winter icing, and renzring the microenvironment anaerobic. O~trecn edulis and Cm~~sastrea uirginica s u r v i~e temporary exposure to thc direcl: effects of such conditians as well as to near-lethal tempcmtrrms, hut, weakened thereby, become vulnerable to invasion Iyy saprobes Irom the enriched biologkd film. Unless environmental conditions improve before the oysters lose ability to mover, abnormal mortalities will be hastened bv the activities or these microorganisms, notably Ifexu~nita imflala ( I'rotozoa ). lielevan t literature is reviewed, and possible local remedim are ili~cussed. Canadian data are supported by o r i~i d observatiom from W.=iles and Pakistan. Among other new host and locali@ records, CGtispira balbinndi (Spirnchaetales) and cercariae of a bucephalid trematode are lifted from Ostrea beklieri from Karachi. 'Manuscript received December 5, 1960. Contribution from the Institute of Parasitology, McGill University, Macdonald College P.O.. Oue.. with financial assistance from the National Research Council of Canada and the ~i s h e r z s ~e s e a r c h Board of Canada. aInstitute of Parasitology, McGill University, Macdonald College. C a n J. Zool. Vol. 39 (1961) Can. J. Zool. Downloaded from www.nrcresearchpress.com by University of Waterloo on 11/26/14 For personal use only. *Since this went to press my attention has been drawn to a research note by G. F. M. Smith (Science, 84, 157 (1936)) recording 0. stellarum from about 25% of a small collection of female A . vulgaris from Malpeque Bay oyster beds. Can. J. Zool. Downloaded from www.nrcresearchpress.com by University of Waterloo on 11/26/14 For personal use only. R l : y~~c h u r~a o~t a r rtuJ4rIo (Sto1,es) (33. 47, IlOJ Polvmastldun Uollingerifl dryxdali Kent (65, 71 I l c x i r r~r~l , r inj?otu 13ujordin (16.

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A comparison of an amoeba, Vahlkampfia patuxent, with tissue‐culture cells

Hogue

1922

J. Exp. Zool.

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Studies on the Life History of Vahlkampfia Patuxent N.SP., Parasitic in the Oyster, With Experiments Regarding Its Pathogenicity*

Cited by 3 publications

References 3 publications

Marine Amebae From Clean and Stressed Bottom Sediments of the Atlantic Ocean and Gulf of Mexico*^,^†^,^‡

Marine Amebae From Clean and Stressed Bottom Sediments of the Atlantic Ocean and Gulf of Mexico*^,^†^,^‡

Microecological Factors in Oyster Epizootics

A comparison of an amoeba, Vahlkampfia patuxent, with tissue‐culture cells

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Studies on the Life History of Vahlkampfia Patuxent N.SP., Parasitic in the Oyster, With Experiments Regarding Its Pathogenicity*

Cited by 3 publications

References 3 publications

Marine Amebae From Clean and Stressed Bottom Sediments of the Atlantic Ocean and Gulf of Mexico*,†,‡

Marine Amebae From Clean and Stressed Bottom Sediments of the Atlantic Ocean and Gulf of Mexico*,†,‡

Microecological Factors in Oyster Epizootics

A comparison of an amoeba, Vahlkampfia patuxent, with tissue‐culture cells

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Product

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Marine Amebae From Clean and Stressed Bottom Sediments of the Atlantic Ocean and Gulf of Mexico*^,^†^,^‡

Marine Amebae From Clean and Stressed Bottom Sediments of the Atlantic Ocean and Gulf of Mexico*^,^†^,^‡