Results 171 to 180 of about 2,332 (209)

New Targets in Diarrhetic Shellfish Poisoning Control

Journal of Natural Products, 2005
The toxic profile of dinoflagellates varies even among identical species, raising an interesting question about the mechanism of toxin regulation and production. In consequence, it also poses a considerable problem in their control methods. In this paper, we report on the isolation and structural elucidation of several new ester derivatives of okadaic ...
Blanca, Suárez-Gómez, María L, Souto, Patricia G, Cruz, José J, Fernández, Manuel, Norte   +4 more
openaire   +2 more sources

Diarrhetic Shellfish Poisoning in Narragansett Bay

Estuaries, 1987
A two-year survey for diarrhetic shellfish poisoning (DSP) was conducted in Narragansett Bay using the mouse assay method. The suspected causative organisms,Dinophysis spp., were monitored at the same time. Only one shellfish sample, in September 1984, yielded an unequivocal positive result at a time when the dinoflagellate population was dominated byD.
Lucie Maranda, Yuzuru Shimizu
openaire   +1 more source

Diarrhetic shellfish poisoning (DSP) toxins in South Australian shellfish

Harmful Algae, 2006
Abstract In December 2003 a bloom of the toxic dinoflagellate Dinophysis acuminata (Claparede and Lachmann, 1859) was detected during routine plankton monitoring at Smoky Bay, on the west coast of South Australia (SA). Samples of scallops, razorfish and oysters were collected and analysed by LC–MS/MS to compare diarrhetic shellfish poisoning (DSP ...
Thomas L. Madigan, Ken G. Lee, David J. Padula, Paul McNabb, Andrew M. Pointon   +4 more
openaire   +1 more source

Enzymatic hydrolysis of esterified diarrhetic shellfish poisoning toxins and pectenotoxins

Analytical and Bioanalytical Chemistry, 2007
Okadaic acid (OA) and dinophysistoxins-1 and -2 (DTX1, DTX2), the toxins responsible for incidents of diarrhetic shellfish poisoning (DSP), can occur as complex mixtures of ester derivatives in both plankton and shellfish. Alkaline hydrolysis is usually employed to release parent OA/DTX toxins, and analyses are conducted before and after hydrolysis to ...
Doucet, Erin, Ross, Neil N., Quilliam, Michael A.   +2 more
openaire   +2 more sources

Phytoplankton selection by mussels, and diarrhetic shellfish poisoning

Marine Biology, 1998
To better understand the dynamics of diarrhetic shellfish poisoning (DSP) contamination a field study was carried out on the feeding behavior of Mytilus galloprovincialis (Lmk) during an important DSP outbreak. The study was focused on the relationships between phytoplankton in seawater and algal cells, or their remnants, in mussel stomachs. During the
L. SIDARI, P. NICHETTO, S. COK, S. SOSA, A. TUBARO, HONSELL, Giorgio, R. DELLA LOGGIA   +6 more
openaire   +1 more source

Causative species of diarrhetic shellfish poisoning (DSP) in Norway

Marine Biology, 1990
This study was performed at Vikane in the Sognefjord, Norway, from September 1987 to October 1988 on the blue musselMytilus edulis collected monthly at three different depths (3 to 6, 6 to 8 and 8 to 12 m). Cell numbers of three species ofDinophysis from mussel digestive glands and in seawater were counted for each specimen.
V. S�chet, P. Safran, P. Hovgaard, T. Yasumoto   +3 more
openaire   +1 more source

Diarrhetic shellfish poisoning toxin profile of shellfish from Southern Atlantic coasts of Morocco

South Asian Journal of Experimental Biology, 2011
During the monitoring program of phycotoxins conducted in 2005 and 2006, lipophilic shell fish toxins (LSTs) are involved in shellfish toxicity phenomena in the South Atlantic Moroccan coasts (Dakhla region). Toxicity was assessed by the traditional mouse bioassay (MBA); the content and the nature of the toxic components were established through ...
Rachid Abouabdellaha, Asmae Bennouna, Jaouad El Attar, Katrin Erler, Mina Dellal, Abdel ghani Chafik, Abdelatif Moukrim   +6 more
openaire   +1 more source

Isolation of a new diarrhetic shellfish poison from Irish mussels

Journal of the Chemical Society, Chemical Communications, 1992
A new marine toxin dinophysistoxin-2 (DTX-2)4, isolated from toxic Irish mussels and biogenetically related to the toxins okadaic acid 1 and dinophysistoxin-1 (DTX-1)2, the principal agents responsible for diarrhetic shellfish poisoning (DSP), is reported.
Hu, Tingmo, Doyle, Jacqueline, Jackson, David, Marr, Julie, Nixon, Eugene, Pleasance, Stephen, Quilliam, Michael A., Walter, John A., Wright, Jeffrey L. C.   +8 more
openaire   +2 more sources

Diarrhetic shellfish poisoning toxin esters in Danish blue mussels and surf clams

Food Additives and Contaminants, 2005
Until recently, little focus was given to the presence of diarrhetic shellfish poisoning (DSP) toxin esters in seafood products. However, during the last few years, the occurrence of a high percentage of esters of the total amount of DSP toxins present in some seafood products has been observed.
K, Jørgensen, S, Scanlon, L B, Jensen
openaire   +2 more sources

Automatic high-performance liquid chromatographic method for the determination of diarrhetic shellfish poison

Journal of Chromatography A, 1996
A rapid HPLC method with fluorescence detection for the determination of okadaic acid (OA) and dinophysistoxin-1 (DTX-1) in mussels and mussel products is presented. For fluorescence labelling of OA and DTX-1, 9-anthryldiazomethane (ADAM) is used.
C, Hummert, J L, Shen, B, Luckas
openaire   +2 more sources