Riboflavin secreted by Shewanella sp. FDL-2 facilitates its reduction of Se(iv) and Te(iv) by promoting electron transfer.

ABSTRACT: The biological reduction of selenite (Se(iv)) or tellurite (Te(iv)) to Se⁰ or Te⁰ has received increasing attention, as related studies have favored the development of Se/Te pollution control methods. In the presence of the electron donor, the microbes acquired energy and transferred electrons to Se(iv) or Te(iv) to achieve their detoxication. However, the microbial electron transfer pathways involved in this process are still not fully understood. In this study, we reported that marine Shewanella sp. FDL-2 (FDL-2) was capable of reducing Se(iv) and Te(iv) through a novel riboflavin-involved pathway. The results showed that FDL-2 can effectively reduce 10 mM Se(iv) and 5 mM Te(iv) to Se⁰ and Te⁰, which was further confirmed by XPS and XRD

SUBMITTER: Cheng M 

PROVIDER: S-EPMC10667860 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature