Extracellular biogenic nanomaterials inhibit pyoverdine production in Pseudomonas aeruginosa: a novel insight into impacts of metal(loid)s on environmental bacteria

摘要: Anthropogenic activities such as mining, smelting, and industrial use have caused serious problems of metal(loid) pollution in nearly every country the world. A wide range environmental microorganisms are capable transforming metal(loid)s into nanomaterials, i.e., biogenic nanomaterials (bio-NMs), environment. Although impacts various on ecosystems been extensively studied, potential influence bio-NMs generated environment to organisms is largely unexplored. Using tellurium transformed from tellurite by a metal-reducing bacterium model bio-NMs, we demonstrated that significantly decreased siderophore production an Pseudomonas aeruginosa both planktonic cultures biofilms. Transcriptomic analysis revealed inhibited expression genes involved biosynthesis transport siderophores. Siderophores secreted certain bacteria microbial communities can be considered public goods exploited local communities, playing important role shaping communities. The inhibition implies may through altering specific functions bacteria. Taken together, this study provides novel insight metal(loid)s.