Blar i Bergen Open Research Archive på forfatter "Zhao, Rui"
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Ammonia-oxidizing archaea have similar power requirements in diverse marine oxic sediments
Zhao, Rui; Mogollon, Jose M; Roerdink, Desiree Lisette; Thorseth, Ingunn Hindenes; Økland, Ingeborg Elisabet; Jørgensen, Steffen Leth (Journal article; Peer reviewed, 2021)Energy/power availability is regarded as one of the ultimate controlling factors of microbial abundance in the deep biosphere, where fewer cells are found in habitats of lower energy availability. A critical assumption ... -
"Candidatus Subterrananammoxibiaceae," a New Anammox Bacterial Family in Globally Distributed Marine and Terrestrial Subsurfaces
Zhao, Rui; Moine-Bauer, Sven Le; Babbin, Andrew R. (Journal article; Peer reviewed, 2023)Bacteria specialized in anaerobic ammonium oxidation (anammox) are widespread in many anoxic habitats and form an important functional guild in the global nitrogen cycle by consuming bio-available nitrogen for energy rather ... -
Deep-sea sponge grounds as nutrient sinks: Denitrification is common in boreo-Arctic sponges
Rooks, Christine; Fang, James Kar-Hei; Mørkved, Pål Tore; Zhao, Rui; Rapp, Hans Tore; Xavier, Joana R; Hoffmann, Friederike (Journal article; Peer reviewed, 2020-03)Sponges are commonly known as general nutrient providers for the marine ecosystem, recycling organic matter into various forms of bioavailable nutrients such as ammonium and nitrate. In this study we challenge this view. ... -
Genomes of Thaumarchaeota from deep sea sediments reveal specific adaptations of three independently evolved lineages
Kerou, Melina; Ponce-Toledo, Rafael I.; Zhao, Rui; Abby, Sophie S.; Hirai, Miho; Nomaki, Hidetaka; Takaki, Yoshihiro; Nunoura, Takuro; Jørgensen, Steffen Leth; Schleper, Christa (Journal article; Peer reviewed, 2021)Marine sediments represent a vast habitat for complex microbiomes. Among these, ammonia oxidizing archaea (AOA) of the phylum Thaumarchaeota are one of the most common, yet little explored, inhabitants, which seem ... -
Geochemical transition zone powering microbial growth in subsurface sediments
Zhao, Rui; Mogollon, Jose M; Abby, Sophie; Schleper, Christa; Biddle, Jennifer; Roerdink, Desiree; Thorseth, Ingunn Hindenes; Jørgensen, Steffen Leth (Journal article; Peer reviewed, 2020)No other environment hosts as many microbial cells as the marine sedimentary biosphere. While the majority of these cells are expected to be alive, they are speculated to be persisting in a state of maintenance without net ... -
Indigenous Ammonia-Oxidizing Archaea in Oxic Subseafloor Oceanic Crust
Zhao, Rui; Dahle, Håkon; Ramírez, Gustavo A.; Jørgensen, Steffen Leth (Journal article, 2020-03-10)Oceanic ridge flank systems represent one of the largest and leastexplored microbial habitats on Earth. Fundamental ecological questions regarding community activity, recruitment, and succession in this environment remain ... -
Mapping Microbial Abundance and Prevalence to Changing Oxygen Concentration in Deep-Sea Sediments Using Machine Learning and Differential Abundance
Møller, Tor Einar; Moine-Bauer, Sven Le; Hannisdal, Bjarte; Zhao, Rui; Baumberger, Tamara; Roerdink, Desiree Lisette; Dupuis, Amandine; Thorseth, Ingunn Hindenes; Pedersen, Rolf B.; Jørgensen, Steffen Leth (Journal article; Peer reviewed, 2022)Oxygen constitutes one of the strongest factors explaining microbial taxonomic variability in deep-sea sediments. However, deep-sea microbiome studies often lack the spatial resolution to study the oxygen gradient and ... -
Microbial inventory of deeply buried oceanic crust from a young ridge flank
Jørgensen, Steffen Leth; Zhao, Rui (Peer reviewed; Journal article, 2016-05-27)The deep marine biosphere has over the past decades been exposed as an immense habitat for microorganisms with wide-reaching implications for our understanding of life on Earth. Recent advances in knowledge concerning this ... -
Microbial Nitrogen Cycling in the Marine Deep Biosphere
Zhao, Rui (Doctoral thesis, 2018-11-22) -
Nitrifier abundance and diversity peak at deep redox transition zones
Zhao, Rui; Hannisdal, Bjarte; Mogollon, Josè M.; Jørgensen, Steffen Leth (Peer reviewed; Journal article, 2019-06-14)More than half of the global ocean floor is draped by nutrient-starved sediments characterized by deep oxygen penetration and a prevalence of oxidized nitrogen. Despite low energy availability, this habitat hosts a vast ... -
Nitrite accumulation and anammox bacterial niche partitioning in Arctic Mid-Ocean Ridge sediments
Zhao, Rui; Babbin, AR; Roerdink, Desiree Lisette; Thorseth, Ingunn Hindenes; Jørgensen, Steffen Leth (Journal article; Peer reviewed, 2023)By consuming ammonium and nitrite, anammox bacteria form an important functional guild in nitrogen cycling in many environments, including marine sediments. However, their distribution and impact on the important substrate ...