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| HAL : halsde-00155909, version 1 |
| DOI : 10.1016/j.ejsobi.2006.12.001 |
| Fiche détaillée |  Récupérer au format |
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| European Journal of Soil Biology 43 (2007) 130-139 |
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| Species richness and phylogenetic diversity comparisons of soil microbial communities affected by nickel-mining and revegetation efforts in New Caledonia |
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Aude Herrera 1, 2Marina Hery 1, 2 |
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| (2007) |
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| In order to understand the impact of human activities on soil microbial diversity, we investigated bacterial communities in samples recovered from four New Caledonia environments that have been disturbed by varying degrees of nickel mining associated activities: an undisturbed area with natural soil (characterized by pristine vegetation), a mine spoil (devoid of vegetation), two revegetated mine spoils by endemic plants. For each sample, total DNAwas extracted and 16S rDNA clone library were constructed. 442 clones were sequenced and analyzed. Using these clones, diversity was estimated not only in terms of species richness (nonparametric estimators) and evenness (Reciprocal of Simpson's index), but also in terms of phylogenetic diversity (LIBSHUFF program). Statistically significant differences were detected in phylogenetic composition between mine spoils and natural soil (p ¼ 0.001), between revegetated soils and natural soil (p ¼ 0.001), and between revegetated soils and mine spoils (p ¼ 0.001). On the other hand, no significant differences in species richness were observed between the different environmental samples. These findings provide insights into the response of bacterial community following environmental perturbations caused by nickel-mining activities and revegetation efforts. 2006 Elsevier Masson SAS. All rights reserved. |
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| 1 : | Ecologie microbienne (EM) |
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CNRS : UMR5557 – INRA : UR1193 – Université Claude Bernard - Lyon I – Ecole Nationale Vétérinaire de Lyon |
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| 2 : | Laboratoire des symbioses tropicales et méditerranéennes (LSTM) |
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CIRAD : UMR82 – INRA – IRD – Université Montpellier II - Sciences et Techniques du Languedoc – Université Montpellier I – Montpellier SupAgro |
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| 3 : | School of Biology |
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Newcastle |
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| 4 : | Laboratoire de Botanique et d'Ecologie Végétale Appliquées |
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IRD |
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| domaine | : | Sciences de l'environnement/Biodiversité et Ecologie Sciences du Vivant/Biochimie, Biologie Moléculaire/Génomique, Transcriptomique et Protéomique |
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| Mining – Revegetation – Bacterial diversity – Species richness – Phylogenetic composition |
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| halsde-00155909, version 1 | |
| http://hal-sde.archives-ouvertes.fr/halsde-00155909 | |
| oai:hal-sde.archives-ouvertes.fr:halsde-00155909 | |
| Contributeur : Christine Delorme | |
| Soumis le : Mardi 19 Juin 2007, 14:34:00 | |
| Dernière modification le : Mardi 19 Juin 2007, 14:47:13 | |
