Results 1 to 10 of about 1,405 (160)

Genetic Evidence Reveals the Indispensable Role of the rseC Gene for Autotrophy and the Importance of a Functional Electron Balance for Nitrate Reduction in Clostridium ljungdahlii

Frontiers in Microbiology, 2022
For Clostridium ljungdahlii, the RNF complex plays a key role for energy conversion from gaseous substrates such as hydrogen and carbon dioxide. In a previous study, a disruption of RNF-complex genes led to the loss of autotrophy, while heterotrophy was ...
Isabella Casini, Largus T Angenent, Bastian Molitor   +2 more
exaly   +5 more sources

Levels of autotrophy and heterotrophy in mesophotic corals near the end photic zone

Frontiers in Marine Science, 2023
Mesophotic corals live at ~30-150 m depth and can sustain metabolic processes under light-limited conditions by enhancing autotrophy through specialized photoadaptations or increasing heterotrophic nutrient acquisition.
Veronica Z Radice, Kathryn Mcmahon, Kliti Grice   +2 more
exaly   +5 more sources

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   +4 more sources

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
exaly   +2 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

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

Effects of Trophic Acclimation on Growth and Expression Profiles of Genes Encoding Enzymes of Primary Metabolism and Plastid Transporters of Chlamydomonas reinhardtii

Life, 2023
In this paper, the effect of prolonged trophic acclimation on the subsequent growth of Chlamydomonas reinhardtii batch cultures was studied. The mixotrophic (light + acetate) acclimation stimulated subsequent growth at both mixotrophy and autotrophy ...
Roman K. Puzanskiy, Daria A. Romanyuk, Anastasia A. Kirpichnikova, Maria F. Shishova   +3 more
doaj   +1 more source

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
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

Metabolomic Study of Heterotrophically Grown Chlorella sp. Isolated from Wastewater in Northern Sweden

Molecules, 2021
There are numerous strains of Chlorella with a corresponding variety of metabolic pathways. A strain we previously isolated from wastewater in northern Sweden can grow heterotrophically as well as autotrophically in light and has higher lipid contents ...
Jean Claude Nzayisenga, Anita Sellstedt
doaj   +1 more source