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Decrease due to pollution in the rhizosphere microbial diversity can be amended by supplementation from adapted plants of another species
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Decrease due to pollution in the rhizosphere microbial diversity can be amended by supplementation from adapted plants of another species
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Journal Article
Decrease due to pollution in the rhizosphere microbial diversity can be amended by supplementation from adapted plants of another species
2024
Overview
Manipulating the rhizosphere microbiome to enhance plant stress tolerance is an environmentally friendly technology and a renewable resource to restore degraded environments. Here we suggest a sustainable bioremediation strategy on the example of Stebnyk mine tailings storage. We consider
Salicornia europaea
rhizosphere community, and the ability of the phytoremediation plant
Salix viminalis
to recruit its beneficial microbiome to mediate the pollution stress at the Stebnyk mine tailings storage. The tailings contain large amounts of brine salts and heavy metals that contaminate the ground water and surrounding areas, changing soil biogeochemistry and causing increased erosion. The species richness of the endophytic bacterial community of
S. viminalis
roots was assessed based on observed OTUs, Shannon-InvSimpson, and evenness index. Our results obtained using the plant-based enrichment strategy show that biodiversity was decreased across the contamination zones and that
S. europaea
supplementation significantly increased the species richness. Our results also indicate that the number of dominating bacteria was not changed across zones in both
S. europaea
-treated and untreated bacterial populations, and that the decrease in richness was mainly caused by the low abundant bacterial OTUs. The importance of selecting the bioremediation strains that are likely to harbor a reservoir of genetic traits that aid in bioremediation function from the target environment is discussed
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
