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Title

Determination of microcystin variants and related peptides present in a water bloom of Planktothrix (Oscillatoria) rubescens in a Spanish drinking water reservoir by LC/ESI-MS

AuthorsBarco, Mónica; Flores, Cintia; Rivera Aranda, Josep; Caixach Gamisans, Josep
KeywordsWater bloom
Cyanobacteria
Planktothrix rubescens
Oscillatoria rubescens
Microcystins
Anabaenopeptins
Oscillamide
LC/MS
Occurrence
Spain
Issue Date13-Oct-2004
PublisherElsevier
CitationToxicon 44(8): 881-886 (2004)
AbstractA water bloom of Planktothrix (Oscillatoria) rubescens was observed in a drinking water reservoir in central Spain in 2003. Microcystins where analysed by LC/ESI-MS in 21 samples collected from this reservoir in five different days between March and May. A demethylated variant of microcystin-RR was identified as the major microcystin in most samples. Trace levels of microcystin-LR, -RR and -YR were detected in some samples. Four less common microcystins, with [M+H]+ ions at m/z 960, 981, 1045 and 1053, were also found. Total extracellular microcystin concentration varied from 0.010 to 19.126 μg l−1. Furthermore, anabaenopeptins B and F as well as Oscillamide Y were also identified in these samples.
Description6 pages, 3 figures, 2 tables.-- PMID: 15530970 [PubMed].-- Printed version published Dec 15, 2004.
Publisher version (URL)http://dx.doi.org/10.1016/j.toxicon.2004.08.011
URIhttp://hdl.handle.net/10261/19169
DOI10.1016/j.toxicon.2004.08.011
ISSN0041-0101
E-ISSN1879-3150
Appears in Collections:(IDAEA) Artículos
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