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

doi:10.1039/d3ra07093j

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 海岸带生物学与生物资源利用重点实验室

	Riboflavin secreted by Shewanella sp. FDL-2 facilitates its reduction of Se(iv) and Te(iv) by promoting electron transfer
	Cheng, Manman 1,2; Zhang, Haikun 3; Li, Yan 1; Chen, Wenhao 2
刊名	RSC ADVANCES
	2023-11-22
卷号	13 期号:49 页码:34445-34454
DOI	10.1039/d3ra07093j
通讯作者	Li, Yan(liyan0709@hotmail.com) ; Chen, Wenhao(84460462@qq.com)
英文摘要	The biological reduction of selenite (Se(iv)) or tellurite (Te(iv)) to Se-0 or Te-0 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 Se-0 and Te-0, which was further confirmed by XPS and XRD analyses. RT-qPCR results indicate the upregulation of genes coding flavin-related proteins, and the production of flavin-related substances by strain FDL-2 during Se(iv)/Te(iv) bioreduction was proven by fluorescence chromatography analysis. In addition, the presence of riboflavin enhanced the electron transfer efficiency, indicating its promoting effect on the bioreduction of Se(iv)/Te(iv). Overall, our results highlight a riboflavin-involved electron transfer pathway during Se(iv)/Te(iv) bioreduction and thus deepen our understanding of the corresponding mechanism.
WOS关键词	TELLURIUM ; METABOLISM ; COMMUNITY ; RECOVERY ; SELENITE ; FLAVINS
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:001109525800001
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/33189]
专题	海岸带生物学与生物资源利用重点实验室
通讯作者	Li, Yan; Chen, Wenhao
作者单位	1.Yantai Univ, Coll Life Sci, Yantai 264000, Peoples R China 2.Yibin Univ, Solid State Fermentat Resource Utilizat Key Lab Si, Yibin 644000, Sichuan, Peoples R China 3.Chinese Acad Sci, Yantai Inst Costal Zone Res, Yantai 264000, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Manman,Zhang, Haikun,Li, Yan,et al. Riboflavin secreted by Shewanella sp. FDL-2 facilitates its reduction of Se(iv) and Te(iv) by promoting electron transfer[J]. RSC ADVANCES,2023,13(49):34445-34454.
APA	Cheng, Manman,Zhang, Haikun,Li, Yan,&Chen, Wenhao.(2023).Riboflavin secreted by Shewanella sp. FDL-2 facilitates its reduction of Se(iv) and Te(iv) by promoting electron transfer.RSC ADVANCES,13(49),34445-34454.
MLA	Cheng, Manman,et al."Riboflavin secreted by Shewanella sp. FDL-2 facilitates its reduction of Se(iv) and Te(iv) by promoting electron transfer".RSC ADVANCES 13.49(2023):34445-34454.