StefaniIsabelMorencyEtAl2018

Référence

Stefani, F., Isabel, N., Morency, M.-J., Lamothe, M., Nadeau, S., Lachance, D., Li, E.H.Y., Greer, C., Yergeau, É., Pinno, B.D., Séguin, A. (2018) The impact of reconstructed soils following oil sands exploitation on aspen and its associated belowground microbiome. Scientific reports, 8(1):2761. (Scopus )

Résumé

The objective of this study was to investigate the impact of different soil covers used to reclaim decommissioned oil sands mining sites on the genetic diversity of aspen and their associated belowground microbiota. Aspen genotyping showed that trees mostly originated from sexual reproduction on sites reclaimed with soil covers made of upland forest floor-mineral mix (FFMM) and lowland peat-mineral mix (PMM). In contrast, most individuals in mature and burned stands sampled as benchmarks for natural disturbances originated from vegetative reproduction. Nonetheless, aspen populations in the FFMM and PMM sites were not genetically different from those in mature and burned stands. DNA metabarcoding of bacteria and fungi in root and soil samples revealed that the diversity of the belowground microbiota associated with aspen and the relative abundance of putative symbiotic taxa in PMM were significantly lower than for FFMM and naturally disturbed sites. Despite similar aspen genetic diversity between FFMM and PMM sites, trees were not associated with the same belowground microbiota. Because the soil microbiome and more specifically the mycorrhizal communities are variable both in space and time, long-term monitoring is particularly important to better understand the ecological trajectory of these novel ecosystems.

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@ARTICLE { StefaniIsabelMorencyEtAl2018,
    AUTHOR = { Stefani, F. and Isabel, N. and Morency, M.-J. and Lamothe, M. and Nadeau, S. and Lachance, D. and Li, E.H.Y. and Greer, C. and Yergeau, É. and Pinno, B.D. and Séguin, A. },
    TITLE = { The impact of reconstructed soils following oil sands exploitation on aspen and its associated belowground microbiome },
    JOURNAL = { Scientific reports },
    YEAR = { 2018 },
    VOLUME = { 8 },
    NUMBER = { 1 },
    PAGES = { 2761 },
    NOTE = { cited By 3 },
    ABSTRACT = { The objective of this study was to investigate the impact of different soil covers used to reclaim decommissioned oil sands mining sites on the genetic diversity of aspen and their associated belowground microbiota. Aspen genotyping showed that trees mostly originated from sexual reproduction on sites reclaimed with soil covers made of upland forest floor-mineral mix (FFMM) and lowland peat-mineral mix (PMM). In contrast, most individuals in mature and burned stands sampled as benchmarks for natural disturbances originated from vegetative reproduction. Nonetheless, aspen populations in the FFMM and PMM sites were not genetically different from those in mature and burned stands. DNA metabarcoding of bacteria and fungi in root and soil samples revealed that the diversity of the belowground microbiota associated with aspen and the relative abundance of putative symbiotic taxa in PMM were significantly lower than for FFMM and naturally disturbed sites. Despite similar aspen genetic diversity between FFMM and PMM sites, trees were not associated with the same belowground microbiota. Because the soil microbiome and more specifically the mycorrhizal communities are variable both in space and time, long-term monitoring is particularly important to better understand the ecological trajectory of these novel ecosystems. },
    AFFILIATION = { Natural Resources Canada, Canadian Forest Service, Laurentian Forestry CentreQuébec G1V4C7, Canada; Agriculture and Agri-Food Canada, Ottawa, K1A 0C6, Canada; Natural Resources Canada, Canadian Forest Service, Northern Forestry Centre, Edmonton, T6H 3S5, Canada; National Research Council Canada, Energy, Mining and Environment, Montréal, H4P 2R2, Canada; Institut national de la recherche scientifique, Centre INRS-Institut Armand-Frappier, Laval, H7V 1B7, Canada },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1038/s41598-018-20783-6 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047171230&doi=10.1038%2fs41598-018-20783-6&partnerID=40&md5=18bed6a500e3dd406df6d47198c68c30 },
}

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