Natural attenuation in a slag heap contaminated with cadmium: the role of plants and arbuscular mycorrhizal fungi.
Identifieur interne : 002C60 ( Main/Curation ); précédent : 002C59; suivant : 002C61Natural attenuation in a slag heap contaminated with cadmium: the role of plants and arbuscular mycorrhizal fungi.
Auteurs : M C González-Chávez [Mexique] ; R. Carrillo-González ; M C Gutiérrez-CastorenaSource :
- Journal of hazardous materials [ 0304-3894 ] ; 2009.
Descripteurs français
- KwdFr :
- Alliages (MeSH), Biodiversité (MeSH), Cadmium (composition chimique), Champignons (métabolisme), Concentration en ions d'hydrogène (MeSH), Conservation des ressources naturelles (MeSH), Dépollution biologique de l'environnement (MeSH), Minéraux (composition chimique), Mycelium (métabolisme), Mycorhizes (composition chimique), Plantes (microbiologie), Racines de plante (métabolisme), Sol (MeSH), Écologie (MeSH).
- MESH :
- composition chimique : Cadmium, Minéraux, Mycorhizes.
- microbiologie : Plantes.
- métabolisme : Champignons, Mycelium, Racines de plante.
- Alliages, Biodiversité, Concentration en ions d'hydrogène, Conservation des ressources naturelles, Dépollution biologique de l'environnement, Sol, Écologie.
English descriptors
- KwdEn :
- Alloys (MeSH), Biodegradation, Environmental (MeSH), Biodiversity (MeSH), Cadmium (chemistry), Conservation of Natural Resources (MeSH), Ecology (MeSH), Fungi (metabolism), Hydrogen-Ion Concentration (MeSH), Minerals (chemistry), Mycelium (metabolism), Mycorrhizae (chemistry), Plant Roots (metabolism), Plants (microbiology), Soil (MeSH).
- MESH :
- chemical , chemistry : Cadmium, Minerals.
- chemical : Alloys, Soil.
- chemistry : Mycorrhizae.
- metabolism : Fungi, Mycelium, Plant Roots.
- microbiology : Plants.
- Biodegradation, Environmental, Biodiversity, Conservation of Natural Resources, Ecology, Hydrogen-Ion Concentration.
Abstract
A field study of the natural attenuation occurring in a slag heap contaminated with high available cadmium was carried out. The aims of this research were: to determine plants colonizing this slag heap; to analyze colonization and morphological biodiversity of spores of arbuscular mycorrhizal fungi (AMF); to determine spore distribution in undisturbed samples; to know mycelium and glomalin abundance in the rhizosphere of these plants, and to investigate glomalin participation in Cd-stabilization. Forming vegetal islands, 22 different pioneering plant species from 11 families were colonizing the slag heap. The most common plants were species of Fabaceae, Asteraceae and Poaceae. Almost all plants were hosting AMF in their roots, and spores belonging to Gigaspora, Glomus, Scutellospora and Acaulospora species were observed. Micromorphological analysis showed that spores were related to decomposing vegetal residues and excrements, which means that mesofauna is contributing to their dispersion in the groundmass. Mycelium mass ranged from 0.11 to 26.3 mg/g, which contained between 13 and 75 mg of glomalin/g. Slag-extracted total glomalin was between 0.36 and 4.74 mg/g. Cadmium sequestered by glomalin extracted from either slag or mycelium was 0.028 mg/g. The ecological implication of these results is that organisms occupying vegetal patches are modifying mine residues, which contribute to soil formation.
DOI: 10.1016/j.jhazmat.2008.04.110
PubMed: 18554782
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Colegio de Postgraduados en Ciencias Agrícolas, Campus Montecillo. Carretera México-Texcoco, km 36.5. Montecillo, Texcoco, México, 56230, Mexico. carmeng@colpos.mx</nlm:affiliation><country xml:lang="fr">Mexique</country><wicri:regionArea>Programa de Edafología. Colegio de Postgraduados en Ciencias Agrícolas, Campus Montecillo. Carretera México-Texcoco, km 36.5. Montecillo, Texcoco, México, 56230</wicri:regionArea></affiliation></author><author><name sortKey="Carrillo Gonzalez, R" sort="Carrillo Gonzalez, R" uniqKey="Carrillo Gonzalez R" first="R" last="Carrillo-González">R. 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The aims of this research were: to determine plants colonizing this slag heap; to analyze colonization and morphological biodiversity of spores of arbuscular mycorrhizal fungi (AMF); to determine spore distribution in undisturbed samples; to know mycelium and glomalin abundance in the rhizosphere of these plants, and to investigate glomalin participation in Cd-stabilization. Forming vegetal islands, 22 different pioneering plant species from 11 families were colonizing the slag heap. The most common plants were species of Fabaceae, Asteraceae and Poaceae. Almost all plants were hosting AMF in their roots, and spores belonging to Gigaspora, Glomus, Scutellospora and Acaulospora species were observed. Micromorphological analysis showed that spores were related to decomposing vegetal residues and excrements, which means that mesofauna is contributing to their dispersion in the groundmass. Mycelium mass ranged from 0.11 to 26.3 mg/g, which contained between 13 and 75 mg of glomalin/g. Slag-extracted total glomalin was between 0.36 and 4.74 mg/g. Cadmium sequestered by glomalin extracted from either slag or mycelium was 0.028 mg/g. The ecological implication of these results is that organisms occupying vegetal patches are modifying mine residues, which contribute to soil formation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18554782</PMID><DateCompleted><Year>2009</Year><Month>03</Month><Day>03</Day></DateCompleted><DateRevised><Year>2017</Year><Month>11</Month><Day>16</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0304-3894</ISSN><JournalIssue CitedMedium="Print"><Volume>161</Volume><Issue>2-3</Issue><PubDate><Year>2009</Year><Month>Jan</Month><Day>30</Day></PubDate></JournalIssue><Title>Journal of hazardous materials</Title><ISOAbbreviation>J Hazard Mater</ISOAbbreviation></Journal><ArticleTitle>Natural attenuation in a slag heap contaminated with cadmium: the role of plants and arbuscular mycorrhizal fungi.</ArticleTitle><Pagination><MedlinePgn>1288-98</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.jhazmat.2008.04.110</ELocationID><Abstract><AbstractText>A field study of the natural attenuation occurring in a slag heap contaminated with high available cadmium was carried out. The aims of this research were: to determine plants colonizing this slag heap; to analyze colonization and morphological biodiversity of spores of arbuscular mycorrhizal fungi (AMF); to determine spore distribution in undisturbed samples; to know mycelium and glomalin abundance in the rhizosphere of these plants, and to investigate glomalin participation in Cd-stabilization. Forming vegetal islands, 22 different pioneering plant species from 11 families were colonizing the slag heap. The most common plants were species of Fabaceae, Asteraceae and Poaceae. Almost all plants were hosting AMF in their roots, and spores belonging to Gigaspora, Glomus, Scutellospora and Acaulospora species were observed. Micromorphological analysis showed that spores were related to decomposing vegetal residues and excrements, which means that mesofauna is contributing to their dispersion in the groundmass. Mycelium mass ranged from 0.11 to 26.3 mg/g, which contained between 13 and 75 mg of glomalin/g. Slag-extracted total glomalin was between 0.36 and 4.74 mg/g. Cadmium sequestered by glomalin extracted from either slag or mycelium was 0.028 mg/g. The ecological implication of these results is that organisms occupying vegetal patches are modifying mine residues, which contribute to soil formation.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>González-Chávez</LastName><ForeName>M C</ForeName><Initials>MC</Initials><AffiliationInfo><Affiliation>Programa de Edafología. Colegio de Postgraduados en Ciencias Agrícolas, Campus Montecillo. Carretera México-Texcoco, km 36.5. 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