Work

Pressure‐dependent adaptation strategies implied by the dissimilatory iron reducer Orenia metallireducens Z6

Year: 2026

Type: article

Abstract: 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.

Source: mLife

DOI: 10.1002/mlf2.70070

Institutions: China University of Geosciences, Shanghai Ocean University, University of South China, Shanghai Biozeron Biotechnology Co., Ltd (China), University of Illinois Urbana-Champaign, Illinois State Geological Survey, Ministry of Ecology and Environment

Language: English

Topic: Microbial Community Ecology and Physiology

Subfield: Ecology

Field: Environmental Science

Domain: Physical Sciences

Open Access status: diamond

Funders: National Natural Science Foundation of China, Shanghai Jiao Tong University, Shanghai Ocean University, Fundamental Research Funds for the Central Universities

Awards: G1151889514, G5930617889, G6033605826, G6036602279

OpenAlex ID: W7130510857

FWCI: 3.612

Cites: 19

Cited by: 1

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