Microbial custody: key microbiome inhabitant Sphingomonas alleviates silver nanoparticle toxicity in Daphnia magna.

ABSTRACT: Increased usage of nanotechnological applications inevitably leads to exposure of hosts and their associated microbiomes to metallic nanoparticles. Various bacteria within the microbiome harbour mechanisms to protect themselves against metal-related toxicity. These mechanisms have been broadly described in the absence of a host. Here, we studied how silver ion-resistant bacteria isolated from the Daphnia magna microbiome shape the host's exposure to silver nanoparticles. With germfree and mono-associated neonates, the effects of these microbes on the sensitivity of D. magna to silver nanoparticles were studied. By using this approach, a core member of the D. magna microbiome Sphingomonas yanoikuyae was identified to be silver-resistant. Neonates mono-associated with S. yanoikuyae were as s

SUBMITTER: Ouwehand J 

PROVIDER: S-EPMC12199703 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature