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Seasonal occurrence and toxicity of Microcystis spp. and Oscillatoria tenuis in the Lebna Dam, Tunisia
Physicochemical and biological water quality, including the total microcystin concentrations, was investigated for the first time from January to December 2005 in the Lebna Dam, Tunisia. Microcystin levels and characterization of the different microcystin variants present were measured by protein ph...
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Published in: | Water research (Oxford) 2008-02, Vol.42 (4), p.1263-1273 |
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description | Physicochemical and biological water quality, including the total microcystin concentrations, was investigated for the first time from January to December 2005 in the Lebna Dam, Tunisia. Microcystin levels and characterization of the different microcystin variants present were measured by protein phosphatase (PP2A) inhibition assays and by LC/MS/MS, respectively. Nutrient values were high, with total inorganic nitrogen and phosphorus concentrations ranging from 0.05 to 8.4
mg
L
−1 and from 0.03 to 1.37
mg
L
−1, respectively. However, the chlorophyll-
a concentrations were very low with a peak (5.32
μg
L
−1) on 20 September 2005 at 9
m depth water samples. Microscopic examination of the phytoplankton samples showed the dominance in the autumn of three morphospecies of the genus
Microcystis and the species
Oscillatoria tenuis. The total (particulate and dissolved) microcystin concentrations at the surface and at 9
m depth water samples ranged between 0.008 and 1.73, and 0.005 and 5.57
μg microcystin (MC)-LR equivalent
L
−1, respectively, with a peak on 20 September. The presence of the microcystin synthetase genes (
mcyA, -
B, and -
C) in the lysates of the three morphospecies of the genus
Microcystis and the species
O. tenuis indicated that these species were responsible for the microcystin production in this system. The analysis of the field cyanobacterial sample extract containing these species by LC/MS/MS revealed the presence of two microcystin variants: microcystin-LR (MC-LR) and microcystin-YR (MC-YR). |
doi_str_mv | 10.1016/j.watres.2007.09.019 |
format | article |
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mg
L
−1 and from 0.03 to 1.37
mg
L
−1, respectively. However, the chlorophyll-
a concentrations were very low with a peak (5.32
μg
L
−1) on 20 September 2005 at 9
m depth water samples. Microscopic examination of the phytoplankton samples showed the dominance in the autumn of three morphospecies of the genus
Microcystis and the species
Oscillatoria tenuis. The total (particulate and dissolved) microcystin concentrations at the surface and at 9
m depth water samples ranged between 0.008 and 1.73, and 0.005 and 5.57
μg microcystin (MC)-LR equivalent
L
−1, respectively, with a peak on 20 September. The presence of the microcystin synthetase genes (
mcyA, -
B, and -
C) in the lysates of the three morphospecies of the genus
Microcystis and the species
O. tenuis indicated that these species were responsible for the microcystin production in this system. The analysis of the field cyanobacterial sample extract containing these species by LC/MS/MS revealed the presence of two microcystin variants: microcystin-LR (MC-LR) and microcystin-YR (MC-YR).</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2007.09.019</identifier><identifier>PMID: 17936328</identifier><identifier>CODEN: WATRAG</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Bacterial Proteins - genetics ; Bacterial Toxins - analysis ; Bacterial Toxins - genetics ; chlorophyll ; Cyanobacteria ; cyanobacterial toxins ; dams (hydrology) ; Environmental Monitoring ; enzyme inhibition ; eutrophication ; Exact sciences and technology ; Fresh Water ; Freshwater ; genes ; Lebna Dam ; microbial genetics ; Microcystin ; microcystin-LR ; microcystin-YR ; Microcystins - analysis ; Microcystins - genetics ; Microcystis ; Microcystis - chemistry ; Microcystis - genetics ; Microcystis - isolation & purification ; nitrogen ; nutrient content ; Oscillatoria - chemistry ; Oscillatoria - genetics ; Oscillatoria - isolation & purification ; Oscillatoria tenuis ; Other industrial wastes. Sewage sludge ; Peptide Synthases - genetics ; phosphoprotein phosphatase ; phosphorus ; Phytoplankton - chemistry ; Phytoplankton - genetics ; Phytoplankton - isolation & purification ; Pollution ; population density ; population dynamics ; Protein Phosphatase 2 - antagonists & inhibitors ; reservoirs ; seasonal variation ; Seasons ; Tunisia ; Wastes ; Water Pollutants, Chemical - analysis ; Water Supply ; Water treatment and pollution</subject><ispartof>Water research (Oxford), 2008-02, Vol.42 (4), p.1263-1273</ispartof><rights>2007 Elsevier Ltd</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c457t-57b6cacb78de83d421f8bfa5dd72bd9686bc80f9fa7bbbb0713a3170ffbde3f33</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20126038$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17936328$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>El Herry, Soumaya</creatorcontrib><creatorcontrib>Fathalli, Afef</creatorcontrib><creatorcontrib>Rejeb, Amel Jenhani-Ben</creatorcontrib><creatorcontrib>Bouaïcha, Noureddine</creatorcontrib><title>Seasonal occurrence and toxicity of Microcystis spp. and Oscillatoria tenuis in the Lebna Dam, Tunisia</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>Physicochemical and biological water quality, including the total microcystin concentrations, was investigated for the first time from January to December 2005 in the Lebna Dam, Tunisia. Microcystin levels and characterization of the different microcystin variants present were measured by protein phosphatase (PP2A) inhibition assays and by LC/MS/MS, respectively. Nutrient values were high, with total inorganic nitrogen and phosphorus concentrations ranging from 0.05 to 8.4
mg
L
−1 and from 0.03 to 1.37
mg
L
−1, respectively. However, the chlorophyll-
a concentrations were very low with a peak (5.32
μg
L
−1) on 20 September 2005 at 9
m depth water samples. Microscopic examination of the phytoplankton samples showed the dominance in the autumn of three morphospecies of the genus
Microcystis and the species
Oscillatoria tenuis. The total (particulate and dissolved) microcystin concentrations at the surface and at 9
m depth water samples ranged between 0.008 and 1.73, and 0.005 and 5.57
μg microcystin (MC)-LR equivalent
L
−1, respectively, with a peak on 20 September. The presence of the microcystin synthetase genes (
mcyA, -
B, and -
C) in the lysates of the three morphospecies of the genus
Microcystis and the species
O. tenuis indicated that these species were responsible for the microcystin production in this system. The analysis of the field cyanobacterial sample extract containing these species by LC/MS/MS revealed the presence of two microcystin variants: microcystin-LR (MC-LR) and microcystin-YR (MC-YR).</description><subject>Applied sciences</subject><subject>Bacterial Proteins - genetics</subject><subject>Bacterial Toxins - analysis</subject><subject>Bacterial Toxins - genetics</subject><subject>chlorophyll</subject><subject>Cyanobacteria</subject><subject>cyanobacterial toxins</subject><subject>dams (hydrology)</subject><subject>Environmental Monitoring</subject><subject>enzyme inhibition</subject><subject>eutrophication</subject><subject>Exact sciences and technology</subject><subject>Fresh Water</subject><subject>Freshwater</subject><subject>genes</subject><subject>Lebna Dam</subject><subject>microbial genetics</subject><subject>Microcystin</subject><subject>microcystin-LR</subject><subject>microcystin-YR</subject><subject>Microcystins - analysis</subject><subject>Microcystins - genetics</subject><subject>Microcystis</subject><subject>Microcystis - chemistry</subject><subject>Microcystis - genetics</subject><subject>Microcystis - isolation & purification</subject><subject>nitrogen</subject><subject>nutrient content</subject><subject>Oscillatoria - chemistry</subject><subject>Oscillatoria - genetics</subject><subject>Oscillatoria - isolation & purification</subject><subject>Oscillatoria tenuis</subject><subject>Other industrial wastes. Sewage sludge</subject><subject>Peptide Synthases - genetics</subject><subject>phosphoprotein phosphatase</subject><subject>phosphorus</subject><subject>Phytoplankton - chemistry</subject><subject>Phytoplankton - genetics</subject><subject>Phytoplankton - isolation & purification</subject><subject>Pollution</subject><subject>population density</subject><subject>population dynamics</subject><subject>Protein Phosphatase 2 - antagonists & inhibitors</subject><subject>reservoirs</subject><subject>seasonal variation</subject><subject>Seasons</subject><subject>Tunisia</subject><subject>Wastes</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Supply</subject><subject>Water treatment and pollution</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkU1v1DAQhi0EokvhHyDwhZ7YMI6T2L5UQi1f0qIe2p6tiWODV9l4sR1g_z1esoIb-DKHeWY8eh9CnjOoGLDuzbb6gTnaVNUAogJVAVMPyIpJodZ108iHZAXQ8DXjbXNGnqS0BYC65uoxOWNC8Y7XckXcrcUUJhxpMGaO0U7GUpwGmsNPb3w-0ODoZ29iMIeUfaJpv69-AzfJ-HHEHKJHmu00l6afaP5q6cb2E9Jr3L2md_Pkk8en5JHDMdlnp3pO7t-_u7v6uN7cfPh09XazNk0r8roVfWfQ9EIOVvKhqZmTvcN2GETdD6qTXW8kOOVQ9OWBYBw5E-BcP1juOD8nF8vefQzfZpuy3vlkbLlzsmFOmikOvG3F_8FGtq3qVAGbBSwRpBSt0_vodxgPmoE-itBbvYjQRxEalC4iytiL0_6539nh79Ap-QK8OgGYDI4u4mR8-sPVwOoO-JF7uXAOg8YvsTD3t6XLAaQo_7NCXC6ELcF-9zbqYubocfDRmqyH4P996y_VzbNc</recordid><startdate>200802</startdate><enddate>200802</enddate><creator>El Herry, Soumaya</creator><creator>Fathalli, Afef</creator><creator>Rejeb, Amel Jenhani-Ben</creator><creator>Bouaïcha, Noureddine</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7QH</scope><scope>7TV</scope><scope>7U7</scope><scope>7UA</scope><scope>F1W</scope><scope>H95</scope><scope>H97</scope><scope>L.G</scope><scope>M7N</scope></search><sort><creationdate>200802</creationdate><title>Seasonal occurrence and toxicity of Microcystis spp. and Oscillatoria tenuis in the Lebna Dam, Tunisia</title><author>El Herry, Soumaya ; Fathalli, Afef ; Rejeb, Amel Jenhani-Ben ; Bouaïcha, Noureddine</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c457t-57b6cacb78de83d421f8bfa5dd72bd9686bc80f9fa7bbbb0713a3170ffbde3f33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Bacterial Proteins - genetics</topic><topic>Bacterial Toxins - analysis</topic><topic>Bacterial Toxins - genetics</topic><topic>chlorophyll</topic><topic>Cyanobacteria</topic><topic>cyanobacterial toxins</topic><topic>dams (hydrology)</topic><topic>Environmental Monitoring</topic><topic>enzyme inhibition</topic><topic>eutrophication</topic><topic>Exact sciences and technology</topic><topic>Fresh Water</topic><topic>Freshwater</topic><topic>genes</topic><topic>Lebna Dam</topic><topic>microbial genetics</topic><topic>Microcystin</topic><topic>microcystin-LR</topic><topic>microcystin-YR</topic><topic>Microcystins - analysis</topic><topic>Microcystins - genetics</topic><topic>Microcystis</topic><topic>Microcystis - chemistry</topic><topic>Microcystis - genetics</topic><topic>Microcystis - isolation & purification</topic><topic>nitrogen</topic><topic>nutrient content</topic><topic>Oscillatoria - chemistry</topic><topic>Oscillatoria - genetics</topic><topic>Oscillatoria - isolation & purification</topic><topic>Oscillatoria tenuis</topic><topic>Other industrial wastes. Sewage sludge</topic><topic>Peptide Synthases - genetics</topic><topic>phosphoprotein phosphatase</topic><topic>phosphorus</topic><topic>Phytoplankton - chemistry</topic><topic>Phytoplankton - genetics</topic><topic>Phytoplankton - isolation & purification</topic><topic>Pollution</topic><topic>population density</topic><topic>population dynamics</topic><topic>Protein Phosphatase 2 - antagonists & inhibitors</topic><topic>reservoirs</topic><topic>seasonal variation</topic><topic>Seasons</topic><topic>Tunisia</topic><topic>Wastes</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water Supply</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>El Herry, Soumaya</creatorcontrib><creatorcontrib>Fathalli, Afef</creatorcontrib><creatorcontrib>Rejeb, Amel Jenhani-Ben</creatorcontrib><creatorcontrib>Bouaïcha, Noureddine</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Aqualine</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>El Herry, Soumaya</au><au>Fathalli, Afef</au><au>Rejeb, Amel Jenhani-Ben</au><au>Bouaïcha, Noureddine</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Seasonal occurrence and toxicity of Microcystis spp. and Oscillatoria tenuis in the Lebna Dam, Tunisia</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2008-02</date><risdate>2008</risdate><volume>42</volume><issue>4</issue><spage>1263</spage><epage>1273</epage><pages>1263-1273</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><coden>WATRAG</coden><abstract>Physicochemical and biological water quality, including the total microcystin concentrations, was investigated for the first time from January to December 2005 in the Lebna Dam, Tunisia. Microcystin levels and characterization of the different microcystin variants present were measured by protein phosphatase (PP2A) inhibition assays and by LC/MS/MS, respectively. Nutrient values were high, with total inorganic nitrogen and phosphorus concentrations ranging from 0.05 to 8.4
mg
L
−1 and from 0.03 to 1.37
mg
L
−1, respectively. However, the chlorophyll-
a concentrations were very low with a peak (5.32
μg
L
−1) on 20 September 2005 at 9
m depth water samples. Microscopic examination of the phytoplankton samples showed the dominance in the autumn of three morphospecies of the genus
Microcystis and the species
Oscillatoria tenuis. The total (particulate and dissolved) microcystin concentrations at the surface and at 9
m depth water samples ranged between 0.008 and 1.73, and 0.005 and 5.57
μg microcystin (MC)-LR equivalent
L
−1, respectively, with a peak on 20 September. The presence of the microcystin synthetase genes (
mcyA, -
B, and -
C) in the lysates of the three morphospecies of the genus
Microcystis and the species
O. tenuis indicated that these species were responsible for the microcystin production in this system. The analysis of the field cyanobacterial sample extract containing these species by LC/MS/MS revealed the presence of two microcystin variants: microcystin-LR (MC-LR) and microcystin-YR (MC-YR).</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>17936328</pmid><doi>10.1016/j.watres.2007.09.019</doi><tpages>11</tpages></addata></record> |
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issn | 0043-1354 1879-2448 |
language | eng |
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source | ScienceDirect Freedom Collection 2022-2024 |
subjects | Applied sciences Bacterial Proteins - genetics Bacterial Toxins - analysis Bacterial Toxins - genetics chlorophyll Cyanobacteria cyanobacterial toxins dams (hydrology) Environmental Monitoring enzyme inhibition eutrophication Exact sciences and technology Fresh Water Freshwater genes Lebna Dam microbial genetics Microcystin microcystin-LR microcystin-YR Microcystins - analysis Microcystins - genetics Microcystis Microcystis - chemistry Microcystis - genetics Microcystis - isolation & purification nitrogen nutrient content Oscillatoria - chemistry Oscillatoria - genetics Oscillatoria - isolation & purification Oscillatoria tenuis Other industrial wastes. Sewage sludge Peptide Synthases - genetics phosphoprotein phosphatase phosphorus Phytoplankton - chemistry Phytoplankton - genetics Phytoplankton - isolation & purification Pollution population density population dynamics Protein Phosphatase 2 - antagonists & inhibitors reservoirs seasonal variation Seasons Tunisia Wastes Water Pollutants, Chemical - analysis Water Supply Water treatment and pollution |
title | Seasonal occurrence and toxicity of Microcystis spp. and Oscillatoria tenuis in the Lebna Dam, Tunisia |
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