Results 11 to 20 of about 8,714 (205)

Microbial Autotrophy Recorded by Carbonate Dual Clumped Isotope Disequilibrium

Geochemistry, Geophysics, Geosystems
The proliferation of microbial carbon fixation is a key control on the evolution of the biosphere and global carbon cycle. Most records of these metabolisms in ancient rocks come from organic matter or fossils, which are not always preserved.
Miquela Ingalls, Hanna C. Leapaldt, Max K. Lloyd   +2 more
doaj   +2 more sources

Carbon Assimilation by the Picoplanktonic Community Inhabiting the Secondary Chlorophyll Maximum of the Anoxic Marine Zones of the Eastern Tropical North and South Pacific

Frontiers in Marine Science, 2022
Anoxic marine zones (AMZs) constitute pelagic systems distinguished from the oxygen minimum zones (OMZs) by the complete absence of detectable oxygen and the accumulation of nitrite in mid-waters.
Montserrat Aldunate, Montserrat Aldunate, Montserrat Aldunate, Peter von Dassow, Peter von Dassow, Peter von Dassow, Cristian A. Vargas, Cristian A. Vargas, Osvaldo Ulloa, Osvaldo Ulloa   +9 more
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Methylotrophic Autotrophy in Beijerinckia mobilis [PDF]

Journal of Bacteriology, 2005
ABSTRACT Representatives of the genus Beijerinckia are known as heterotrophic, dinitrogen-fixing bacteria which utilize a wide range of multicarbon compounds. Here we show that at least one of the currently known species of this genus, i.e., Beijerinckia ...
Dedysh, S., Smirnova, K., Khmelenina, V., Suzina, N., Liesack, W., Trotsenko, Y.   +5 more
openaire   +3 more sources

(S)-3-Hydroxybutyryl-CoA Dehydrogenase From the Autotrophic 3-Hydroxypropionate/4-Hydroxybutyrate Cycle in Nitrosopumilus maritimus

Frontiers in Microbiology, 2021
Ammonia-oxidizing archaea of the phylum Thaumarchaeota are among the most abundant organisms that exert primary control of oceanic and soil nitrification and are responsible for a large part of dark ocean primary production.
Li Liu, Daniel M. Schubert, Martin Könneke, Martin Könneke, Ivan A. Berg   +4 more
doaj   +1 more source

Autotrophy in Nitrosocystis oceanus [PDF]

Journal of Bacteriology, 1968
Enzymatic assays of cell-free extracts of the ammonia-oxidizing bacterium Nitrosocystis oceanus failed to establish that the biochemical basis of its obligate autotrophy stemmed solely from a metabolic defect. All of the Embden-Meyerhof enzymes except phosphofructokinase, and all of the tricarboxylic acid-cycle ...
P J, Williams, S W, Watson
openaire   +2 more sources

Novel insights into the Thaumarchaeota in the deepest oceans: their metabolism and potential adaptation mechanisms [PDF]

, 2020
Background: Marine Group I (MGI) Thaumarchaeota, which play key roles in the global biogeochemical cycling of nitrogen and carbon (ammonia oxidizers), thrive in the aphotic deep sea with massive populations.
Lehtovirta-Morley, Laura, Lin, Heyu, Liu, Jiwen, Song, Delei, Tian, Jiwei, Todd, Jonathan, Zhang, Xiao-Hua, Zheng, Yanfen, Zhong, Haohui   +8 more
core   +2 more sources

Shedding Light on Microbial “Dark Matter”: Insights Into Novel Cloacimonadota and Omnitrophota From an Antarctic Lake

Frontiers in Microbiology, 2021
The potential metabolism and ecological roles of many microbial taxa remain unknown because insufficient genomic data are available to assess their functional potential.
Timothy J. Williams, Michelle A. Allen, Jonathan F. Berengut, Ricardo Cavicchioli   +3 more
doaj   +1 more source

Erratum: A TetR-family protein (CAETHG_0459) activates transcription from a new promoter motif associated with essential genes for autotrophic growth in acetogens [PDF]

Frontiers in Microbiology
Frontiers Production Office
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Concomitant knockout of target and transporter genes in filamentous fungi by genome co‐editing

MicrobiologyOpen, 2022
In most countries, genetically modified microorganisms are not approved for use for fermentation in the food industry. Therefore, random mutagenesis and subsequent screening are performed to improve the productivities of valuable metabolites and enzymes ...
Koichi Tamano
doaj   +1 more source

Red Light Variation an Effective Alternative to Regulate Biomass and Lipid Profiles in Phaeodactylum tricornutum

Applied Sciences, 2020
Marine water diatom Phaeodactylum tricornutum is a photosynthetic organism that is known to respond to the changing light environment and adapt to different temperatures to prevent photoinhibition and maintain its metabolic functions.
Nikunj Sharma, Gabriel Fleurent, Fatima Awwad, Michael Cheng, Fatma Meddeb-Mouelhi, Suzanne M. Budge, Hugo Germain, Isabel Desgagné-Penix   +7 more
doaj   +1 more source