Anthropogenic remediation of heavy metals selects against natural microbial remediation.
Proc Biol Sci
; 286(1905): 20190804, 2019 06 26.
Article
em En
| MEDLINE
| ID: mdl-31213187
ABSTRACT
In an era of unprecedented environmental change, there have been increasing ecological and global public health concerns associated with exposure to anthropogenic pollutants. While there is a pressing need to remediate polluted ecosystems, human intervention might unwittingly oppose selection for natural detoxification, which is primarily carried out by microbes. We test this possibility in the context of a ubiquitous chemical remediation strategy aimed at targeting metal pollution the addition of lime-containing materials. Here, we show that raising pH by liming decreased the availability of toxic metals in acidic mine-degraded soils, but as a consequence selected against microbial taxa that naturally remediate soil through the production of metal-binding siderophores. Our results therefore highlight the crucial need to consider the eco-evolutionary consequences of human environmental strategies on microbial ecosystem services and other traits.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes do Solo
/
Metais Pesados
/
Recuperação e Remediação Ambiental
Limite:
Humans
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article