First detection of cyanobacterial PSP (paralytic shellfish poisoning) toxins in Spanish freshwaters |
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| Authors: | Lars Wö rmerSamuel Ciré s,Ramsy AghaMarí a Verdugo,Caridad de HoyosAntonio Quesada |
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| Affiliation: | a Dpto de Biología, Universidad Autónoma de Madrid, C. Darwin 2, 28049 Madrid, Spain
b Centro de Estudios Hidrográficos (CEDEX), Paseo Bajo de la Virgen del Puerto 3, 28005 Madrid, Spain |
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| Abstract: | Presence of the paralytic shellfish toxins (PSTs) saxitoxin, neosaxitoxin, decarbamoyl saxitoxin and gonyautoxin-5 was analyzed by mass spectrometry in 41 Spanish freshwaters and 13 strains of potential PST-producing planktonic cyanobacteria. Toxins were detected in five waterbodies, but were absent from the isolated strains. PST containing samples belonged to the same geographical region (South Western Spain) and were most likely related to the presence of the genus Aphanizomenon. |
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| Keywords: | Cyanobacteria PSP Saxitoxin |
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