Endophytic and rhizospheric bacterial communities are affected differently by the host plant species and environmental contamination

Bacteria are associated with the root system of plants in the endophytic and rhizospheric micro-habitats. In this paper, we used cultivation-independent methods to examine how the soil mercury contamination (present or absent) and the host plant species ( Aeschynomene fluminensis and P. acuminatum )...

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Published in:Symbiosis (Philadelphia, Pa.) Pa.), 2021-11, Vol.85 (2), p.191-206
Main Authors: da Silva Maciel, Jonatham Hercules, Mello, Ivani Souza, Vendrusculo, Suzana Junges, Senabio, Jaqueline Alves, da Silva, Rafael Correia, de Siqueira, Adriano Buzutti, Pinheiro, Daniel Guariz, Soares, Marcos Antonio
Format: Article
Language:English
Subjects:
Alginic acid
Bacteria
Biomedical and Life Sciences
Contaminants
Contamination
Developmental Biology
Ecology
Endophytes
Evolutionary Biology
Flowers & plants
Genera
Herbivores
Host plants
Life Sciences
Mercury
Microbiology
Plant Sciences
Soil pollution
Species
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Summary:Bacteria are associated with the root system of plants in the endophytic and rhizospheric micro-habitats. In this paper, we used cultivation-independent methods to examine how the soil mercury contamination (present or absent) and the host plant species ( Aeschynomene fluminensis and P. acuminatum ) interfered with endophytic and rhizospheric bacterial communities in a humid area of the Pantanal biome. The capacity of the most abundant species to remediate the metal was assessed in cells immobilized on alginate spheres. The endophytic and rhizospheric communities were composed of respectively 22 and 26 phyla, 237 and 382 genera, and 644 and 3549 bacterial operational taxonomic units. The soil mercury contamination increased the alpha diversity indicators ( p  
ISSN:0334-5114
1878-7665
DOI:10.1007/s13199-021-00804-1