Variation along the year of trace metal levels in the compartments of the seagrass Posidonia oceanica in Port El Kantaoui, Tunisia.
Identifieur interne : 000009 ( Main/Exploration ); précédent : 000008; suivant : 000010Variation along the year of trace metal levels in the compartments of the seagrass Posidonia oceanica in Port El Kantaoui, Tunisia.
Auteurs : Rym Zakhama-Sraieb [Tunisie] ; Yassine Ramzi Sghaier [Tunisie] ; Ahmed Ben Hmida [Tunisie] ; Giovanna Cappai [Italie] ; Alessandra Carucci [Italie] ; Faouzia Charfi-Cheikhrouha [Tunisie]Source :
- Environmental science and pollution research international [ 1614-7499 ] ; 2016.
Descripteurs français
- Wicri :
- geographic : Tunisie.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Cadmium, Copper, Lead, Nickel, Trace Elements.
- geographic : Tunisia.
- chemistry : Alismatidae, Plant Leaves.
- Adult, Humans.
Abstract
The accumulation of the five trace metals (TMs) cadmium, copper, lead, nickel and zinc was measured in Posidonia oceanica leaves. Shoots were seasonally sampled at 8-10-m depth from four stations located in Port El Kantaoui area, Tunisia, during four campaigns performed in 2012. Levels of the five TMs were analyzed using inductively coupled plasma atomic emission spectrometry (ICP-AES) in three compartments of P. oceanica shoots: blades and sheaths of adult leaves and intermediate leaves. Results showed a preferential accumulation of Cd, Pb, Ni and Zn in adult leaf blades. Therefore, we focus on the study of this compartment. TM levels of blades of adult leaves decreased in the following order: Zn > Ni > Cu > Pb > Cd, irrespective of the season. Levels of the five TMs significantly differed between seasons (p < 0.01). Levels of Cd and Cu showed a seasonal pattern: Cd decreased from spring to winter while Cu increased during that same period of time. A significant correlation (p < 0.01) was found between Cd-Cu and Cd-Pb. A significant correlation (p < 0.05) was also noted between Cd-Ni in the adult leaf blades. A relationship was recorded between the foliar surface of the adult leaf blades and Zn accumulation. This survey allowed to highlight the annual variation of TM accumulation in adult leaf blades of P. oceanica, in relation with ecophysiology of this seagrass. Therefore, this study reinforces the usefulness and the relevance of this compartment of P. oceanica, easy to sample without destruction of whole shoot, as a bioindicator of Zn, Ni, Cd and Pb contamination.
DOI: 10.1007/s11356-015-5163-6
PubMed: 26386852
Affiliations:
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El Manar</orgName><placeName><settlement type="city">Tunis</settlement><region type="region" nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author></analytic><series><title level="j">Environmental science and pollution research international</title><idno type="eISSN">1614-7499</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Alismatidae (chemistry)</term><term>Cadmium (analysis)</term><term>Copper (analysis)</term><term>Humans</term><term>Lead (analysis)</term><term>Nickel (analysis)</term><term>Plant Leaves (chemistry)</term><term>Trace Elements (analysis)</term><term>Tunisia</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Cadmium</term><term>Copper</term><term>Lead</term><term>Nickel</term><term>Trace Elements</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Tunisia</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Alismatidae</term><term>Plant Leaves</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Humans</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Tunisie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The accumulation of the five trace metals (TMs) cadmium, copper, lead, nickel and zinc was measured in Posidonia oceanica leaves. Shoots were seasonally sampled at 8-10-m depth from four stations located in Port El Kantaoui area, Tunisia, during four campaigns performed in 2012. Levels of the five TMs were analyzed using inductively coupled plasma atomic emission spectrometry (ICP-AES) in three compartments of P. oceanica shoots: blades and sheaths of adult leaves and intermediate leaves. Results showed a preferential accumulation of Cd, Pb, Ni and Zn in adult leaf blades. Therefore, we focus on the study of this compartment. TM levels of blades of adult leaves decreased in the following order: Zn > Ni > Cu > Pb > Cd, irrespective of the season. Levels of the five TMs significantly differed between seasons (p < 0.01). Levels of Cd and Cu showed a seasonal pattern: Cd decreased from spring to winter while Cu increased during that same period of time. A significant correlation (p < 0.01) was found between Cd-Cu and Cd-Pb. A significant correlation (p < 0.05) was also noted between Cd-Ni in the adult leaf blades. A relationship was recorded between the foliar surface of the adult leaf blades and Zn accumulation. This survey allowed to highlight the annual variation of TM accumulation in adult leaf blades of P. oceanica, in relation with ecophysiology of this seagrass. Therefore, this study reinforces the usefulness and the relevance of this compartment of P. oceanica, easy to sample without destruction of whole shoot, as a bioindicator of Zn, Ni, Cd and Pb contamination.</div></front></TEI><affiliations><list><country><li>Italie</li><li>Tunisie</li></country><region><li>Gouvernorat de Tunis</li></region><settlement><li>Tunis</li></settlement><orgName><li>Université de Tunis - El Manar</li></orgName></list><tree><country name="Tunisie"><region name="Gouvernorat de Tunis"><name sortKey="Zakhama Sraieb, Rym" sort="Zakhama Sraieb, Rym" uniqKey="Zakhama Sraieb R" first="Rym" last="Zakhama-Sraieb">Rym Zakhama-Sraieb</name></region><name sortKey="Charfi Cheikhrouha, Faouzia" sort="Charfi Cheikhrouha, Faouzia" uniqKey="Charfi Cheikhrouha F" first="Faouzia" last="Charfi-Cheikhrouha">Faouzia Charfi-Cheikhrouha</name><name sortKey="Hmida, Ahmed Ben" sort="Hmida, Ahmed Ben" uniqKey="Hmida A" first="Ahmed Ben" last="Hmida">Ahmed Ben Hmida</name><name sortKey="Sghaier, Yassine Ramzi" sort="Sghaier, Yassine Ramzi" uniqKey="Sghaier Y" first="Yassine Ramzi" last="Sghaier">Yassine Ramzi Sghaier</name></country><country name="Italie"><noRegion><name sortKey="Cappai, Giovanna" sort="Cappai, Giovanna" uniqKey="Cappai G" first="Giovanna" last="Cappai">Giovanna Cappai</name></noRegion><name sortKey="Carucci, Alessandra" sort="Carucci, Alessandra" uniqKey="Carucci A" first="Alessandra" last="Carucci">Alessandra Carucci</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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