Pfiesteria piscicida


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Pfiesteria piscicida

A dinoflagellate species that periodically causes algal blooms in estuaries along the Atlantic seaboard of the US, which kills fish by releasing a potent neurotoxin. There have been anecdotal reports that Pfiesteria piscicida may also affect humans, causing an array of symptoms including headache, confusion, skin rash and eye irritation, but the public health impact of P piscicida is unknown.

Pfiesteria piscicida

(fēs-tĕr′ē-ă pĭs-ĭ-sīd′ā) [NL fish killer]
A unicellular marine organism, which may or may not produce a toxin, depending on environmental conditions. When toxic, it has been implicated in the death of millions of fish in the estuaries of North Carolina, Delaware, and Maryland. The toxin can become aerosolized, and if humans are exposed to it, severe neurological, mental, and physical illness may occur. Specific therapy to combat the toxin is not available, but concomitant infections can be treated with tetracyclines.
References in periodicals archive ?
At that time, an outbreak of unexplained human illness, associated with exposure to blooms of a dinoflagellate, Pfiesteria piscicida, attracted his attention and interest.
Quantitative real-time PCR assays targeting "harmful" algal species Alexandrium monilalum, Margalefidinium polykrikoides (previously Cochlodinium), Karlodinium veneficum, Luciella spp., Pfiesteria piscicida, Pseudopfiesteria shumwayae, and Prorocentrum minimum were executed for each of the DNA samples as previously described (VA DEQ 2014, Vandersea et al.
IRI-160, isolated from the Delaware River, USA, with a negative effect on the growth of three dinoflagellates (Pfiesteria piscicida, Prorocentrum minimum and Gyrodinium uncatenum).
Em mananciais da costa leste dos Estados Unidos, surtos de Pfiesteria piscicida ocorridos na decada de 1990, em eventos de eutrofizacao, provocaram danos neurologicos irreversiveis nas pessoas expostas ao material toxico e volatil produzido (6).
In the dinoflagellates, to date, CYP protein has been isolated in 4 other species (Alexandrium fundyense, Karlodinium veneficum, Pfiesteria piscicida, and Prorocentrum minimum), with no further characterization; herein, we analyzed those sequences and identified 3 groups as follows: CYP A, CYP B to which our CpCYP belongs, and CYP C (Figure 2(b)).
This new algae was named Pfiesteria piscicida (pronounced fist-area piss-ki-sida).
Hutchins, "A bacterium that inhibits the growth of Pfiesteria piscicida and other dinoflagellates," Harmful Algae, vol.
Schrader A, 2010, "Responding to Pfiesteria piscicida (the fish killer): phantomatic ontologies, indeterminacy and responsibility in toxic microbiology" Social Studies of Science 40 275-306
The fish kills were associated with Pfiesteria piscicida, a toxic microorganism which caused skin lesions on fish and health problems for fisherman and scientists studying the problem.
Hog waste spills have caused the rapid spread of Pfiesteria piscicida, which has killed a billion fish in North Carolina alone.
Pfiesteria piscicida and other Pfiesteria-like dinoflagellates: behavior, impacts, and environmental controls.