PMID- 32880083 OWN - NLM STAT- MEDLINE DCOM- 20210825 LR - 20220531 IS - 1573-3017 (Electronic) IS - 0963-9292 (Linking) VI - 30 IP - 7 DP - 2021 Sep TI - Two new selenite reducing bacterial isolates from paddy soil and the potential Se biofortification of paddy rice. PG - 1465-1475 LID - 10.1007/s10646-020-02273-6 [doi] AB - Selenium (Se) is an essential element for human health. Se-enriched agricultural products can promote people's intake of Se. Microorganisms play an important role in Se cycling. In this study, two new bacterial strains were isolated from paddy soil and were identified as Chitinophaga sp. and Comamonas testosteroni, respectively. More than 44% and 39% of 1.0 mM selenite were reduced in 84 h by them using yeast extract as carbon source, respectively. Scanning electron microscope (SEM) and Energy dispersive X-ray spectrometry (EDS) results indicated that the reduction product of selenite was nanometer Se. These strains could promote the available Se in soil and the content of Se in rice plants in pot experiments. Organic combined Se in soils was increased up to 35%, accompanied by the 92% and 130% increase of Se in rice plants. To our best knowledge, this is the first report of Se reduction by Chitinophaga. This work might provide a prospective strategy for microbial fortification of Se in corps. CI - (c) 2020. Springer Science+Business Media, LLC, part of Springer Nature. FAU - Huang, Chunlei AU - Huang C AD - State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PR China. AD - School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China. AD - Zhejiang Institute of Geological Survey, Hangzhou, 311203, PR China. FAU - Wang, Helin AU - Wang H AD - State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PR China. FAU - Shi, Xinyan AU - Shi X AD - State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PR China. FAU - Wang, Yanhong AU - Wang Y AD - State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PR China. FAU - Li, Ping AU - Li P AD - State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PR China. pli@cug.edu.cn. AD - School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China. pli@cug.edu.cn. FAU - Yin, Hanqin AU - Yin H AD - State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PR China. AD - Zhejiang Institute of Geological Survey, Hangzhou, 311203, PR China. FAU - Shao, Yixian AU - Shao Y AD - Zhejiang Institute of Geological Survey, Hangzhou, 311203, PR China. LA - eng GR - 41772260/National Natural Science Foundation of China/ GR - 2020006/Financial fund of Zhejiang Province/ PT - Journal Article DEP - 20200902 PL - United States TA - Ecotoxicology JT - Ecotoxicology (London, England) JID - 9885956 RN - 0 (Soil) RN - F6A27P4Q4R (Selenious Acid) RN - H6241UJ22B (Selenium) SB - IM MH - Biofortification MH - Humans MH - *Oryza MH - Selenious Acid MH - *Selenium MH - Soil OTO - NOTNLM OT - Bioavailability OT - Biofortification OT - Chitinophaga sp. OT - Comamonas testosteroni OT - SeNPs OT - Selenite reduction EDAT- 2020/09/04 06:00 MHDA- 2021/08/26 06:00 CRDT- 2020/09/04 06:00 PHST- 2020/08/19 00:00 [accepted] PHST- 2020/09/04 06:00 [pubmed] PHST- 2021/08/26 06:00 [medline] PHST- 2020/09/04 06:00 [entrez] AID - 10.1007/s10646-020-02273-6 [pii] AID - 10.1007/s10646-020-02273-6 [doi] PST - ppublish SO - Ecotoxicology. 2021 Sep;30(7):1465-1475. doi: 10.1007/s10646-020-02273-6. Epub 2020 Sep 2.