Interactive effects of hypoxia and polybrominated diphenyl ethers (PBDEs) on microbial community assembly in surface marine sediments

摘要: Abstract Hypoxia alters the oxidation–reduction balance and biogeochemical processes in sediments, but little is known about its impacts on microbial community that responsible for such processes. In this study, we investigated effects of hypoxia ubiquitously dispersed flame-retardant BDE47 bacterial communities marine surface sediments during a 28-days microcosm experiment. Both alone significantly altered reduced species genetic diversity. UniFrac analysis revealed selected certain resulted major shifts, whereas changed relative abundances taxa, suggesting slower nonetheless significant shifts. These two stressors targeted mostly different they both favored Bacteroidetes suppressed Gammaproteobacteria. Importantly, were under hypoxic normoxic conditions, highlighting need to consider risk assessments broader context interaction with hypoxia.