Adaption of microbial communities to the hostile environment in the Doce River after the collapse of two iron ore tailing dams.

ABSTRACT: In November 2015, two iron ore tailing dams collapsed in the city of Mariana, Brazil. The dams' collapse generated a wave of approximately 50 million m³ of a mixture of mining waste and water. It was a major environmental tragedy in Brazilian history, which damaged rivers, and cities 660 km away in the Doce River basin until it reached the ocean coast. Shortly after the incident, several reports informed that the concentration of metals in the water was above acceptable legal limits under Brazilian laws. Here the microbial communities in samples of water, mud, foam, and rhizosphere of Eichhornia from Doce River were analyzed for 16S and 18S rRNA-based amplicon sequencing, along with microbial isolation, chemical and mineralogical analyses. Samples were collected one month

SUBMITTER: Giongo A 

PROVIDER: S-EPMC7475130 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature