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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-009-0375-5
|2 doi
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|a pubmed24n0634.xml
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|a (DE-627)NLM190104406
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|a (NLM)19618268
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Osswald, Joana
|e verfasserin
|4 aut
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|a Production of anatoxin-a by cyanobacterial strains isolated from Portuguese fresh water systems
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 07.12.2009
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|a Date Revised 03.12.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The occurrence of anatoxin-a in several freshwater systems in Portugal and its production by Portuguese cyanobacterial strains, after cultivation in laboratory, were studied. Surface water samples from 9 water bodies, for recreational and human consumption usage, were surveyed for anatoxin-a presence and for obtaining cultures of pure cyanobacterial strains. Anatoxin-a analysis was performed by high performance liquid chromatography (HPLC) with fluorescence detection (FLD) followed by Mass Spectrometry (MS) confirmation. No anatoxin-a was detected in all the natural water samples (limit of detection (LOD) = 25 ng l(-1)) but among the 22 isolated cyanobacterial strains, 13 could produce anatoxin-a in laboratory conditions (LOD = 3 ng g(-1) dw). This proportion of anatoxin-a producing strains (59.1%) in laboratory is discussed considering the hypothesis that anatoxin-a is a more frequent metabolite in cyanobacteria than it was thought before and making its occurrence in Portuguese freshwaters almost certain. Therefore, health and ecological risks caused by anatoxin-a in Portugal, should be seriously considered
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Cyanobacteria Toxins
|2 NLM
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| 650 |
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|a Tropanes
|2 NLM
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| 650 |
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|a Water Pollutants
|2 NLM
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|a anatoxin a
|2 NLM
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| 650 |
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|a 80023A73NK
|2 NLM
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| 700 |
1 |
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|a Rellán, Sandra
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gago-Martinez, Ana
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vasconcelos, Vítor
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 18(2009), 8 vom: 15. Nov., Seite 1110-5
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
1 |
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|g volume:18
|g year:2009
|g number:8
|g day:15
|g month:11
|g pages:1110-5
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|u http://dx.doi.org/10.1007/s10646-009-0375-5
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