Pressure-dependent adaptation strategies implied by the dissimilatory iron reducer Orenia metallireducens Z6OA
Impact statement Tolerance of high hydrostatic pressure(HHP)is the hallmark of deep subsurface microorganisms,while its mechanisms remain under-investigated.This study explores HHP adaptation in the piezotolerant bacterium Orenia metallireducens across its near-full pressure range(0.1-40 MPa).At inhibitory pressure(40 MPa),the organism redirected carbon flux toward more favorable energy generation and biosynthesis using ferric mineral as the“electron sink.”Furthermore,both universal and pressure-dependent strategies enabled the organism to withstand varying pressures.These findings highlight the role of iron minerals in microbial HHP adaptation and reveal novel survival strategies,advancing our understanding of deep-life evolution and biogeochemical impacts.
Shuyi Li;Jiahao Pei;Jiasong Fang;Rulong Liu;Yuli Wei;Xianyu Huang;Guang Yang;Min Liu;Qin Lin;Robert RSanford;Hongbo Shao;Yongguang Jiang;Yidan Hu;Zhou Jiang;Qi Feng;Yu He;Chenxi Zhang;Yizhou Fan;Yiran Dong;Liang Shi
School of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaShanghai Engineering Research Center of Hadal Science and Technology,Shanghai Ocean University,Shanghai,ChinaShanghai Engineering Research Center of Hadal Science and Technology,Shanghai Ocean University,Shanghai,ChinaShanghai Engineering Research Center of Hadal Science and Technology,Shanghai Ocean University,Shanghai,ChinaShanghai Engineering Research Center of Hadal Science and Technology,Shanghai Ocean University,Shanghai,ChinaState Key Laboratory of Geomicrobiology and Environmental Changes,China University of Geosciences(Wuhan),Wuhan,ChinaState Key Laboratory of Geomicrobiology and Environmental Changes,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Nuclear Science and Technology,University of South China,Hengyang,ChinaShanghai Biozeron Biotechnology Co.,Ltd.,Shanghai,ChinaDepartment of Earth Science&Environmental Change,University of Illinois Urbana-Champaign,Champaign,Illinois,USAIllinois State Geological Survey,Champaign,Illinois,USASchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,China State Key Laboratory of Geomicrobiology and Environmental Changes,China University of Geosciences(Wuhan),Wuhan,China State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution,Ministry of Ecology and Environment,Wuhan,China Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science,China University of Geosciences(Wuhan),Wuhan,China MOE Key Laboratory of Groundwater Quality and Health,School of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,ChinaSchool of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,China State Key Laboratory of Geomicrobiology and Environmental Changes,China University of Geosciences(Wuhan),Wuhan,China State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution,Ministry of Ecology and Environment,Wuhan,China Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science,China University of Geosciences(Wuhan),Wuhan,China MOE Key Laboratory of Groundwater Quality and Health,School of Environmental Studies,China University of Geosciences(Wuhan),Wuhan,China
生物科学
carbon fluxferric mineralhigh hydrostatic pressure hhppressure adaptationOrenia metallireducensdeep subsurface microorganismsiron reductionpiezotolerant bacterium orenia metallireducens
《mLife》 2026 (1)
P.122-125,4
funded by the National Natural Science Foundation of China(Nos.42472366,U2444218,41877321,and 92051111)Hadal Science and Technology Research Center at Shanghai Ocean University,and the Fundamental Research Funds for the Central Universities(122-G1323522144).
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