Results 11 to 20 of about 2,026 (131)

Current understanding of electroautotrophy and its relevance in astrobiology-related research. [PDF]

mLife
Abstract Electroautotrophy—the use of extracellular electrons as the primary energy source for autotrophic metabolism—remains understudied compared to photoautotrophy and chemoautotrophy. Its occurrence in deep‐earth and deep‐sea environments suggests profound implications for astrobiology, yet electroautotrophic microorganisms remain poorly explored ...
Wang Q, Lau Vetter MCY.
europepmc   +2 more sources

Chemoautotrophic growth of hydrogen-uptake-positive strains of Rhizobium japonicum [PDF]

Journal of Bacteriology, 1980
Recently reported research from this laboratory has demonstrated the autotrophic growth of certain hydrogen-uptake-positive strains of Rhizobium japonicum and defined minimal conditions for such growth. Ribulose 1,5-bisphosphate carboxylase has been detected in autotrophically growing cells, but at low specific activity. Moreover, growth rates were low,
J E, Lepo, F J, Hanus, H J, Evans
openaire   +2 more sources

Fe(II) Addition Drives Soil Bacterial Co-Ocurrence Patterns and Functions Mediated by Anaerobic and Chemoautotrophic Taxa

Microorganisms, 2022
Iron is among the most abundant elements in the soil of paddy fields, and its valence state and partitioning can be transformed by flooding and drainage alternations. However, little is known about the function of soil microbes that interact with Fe(II).
Chenyang Zhang, Senlin Liu, Sarfraz Hussain, Lifeng Li, Baiome Abdelmaguid Baiome, Shuiqing Xiao, Hui Cao   +6 more
doaj   +1 more source

Fractionation of Stable Carbon Isotopes during Chemoautotrophic Growth of Sulfur-Oxidizing Bacteria [PDF]

Applied and Environmental Microbiology, 1987
Laboratory-grown strains of chemoautotrophic Thiomicrospira sp. strain L-12 and Thiobacillus neapolitanus produced cell carbon that was 24.6 to 25.1 ppt (24.6 to 25.1 mg/g) lower in 13 C isotope abundance than the ambient source of carbon dioxide and bicarbonate.
E G, Ruby, H W, Jannasch, W G, Deuser
openaire   +2 more sources

Growth Pattern and Yield of a Chemoautotrophic Beggiatoa sp. in Oxygen-Sulfide Microgradients [PDF]

Applied and Environmental Microbiology, 1986
Recently developed techniques involving opposed, gel-stabilized gradients of O 2 and H 2 S permit cultivation of a marine Beggiatoa strain as a chemolithoautotroph which uses gliding motility to precisely track the interface between H 2 S and O
D C, Nelson, B B, Jørgensen, N P, Revsbech   +2 more
openaire   +2 more sources

Effect of Three Pesticides Used in Salmon Farming on Ammonium Uptake in Central-Southern and Northern Patagonia, Chile

Frontiers in Marine Science, 2021
Chile is the second largest global producer of farmed salmon. The growth of salmon production has not been free of environmental challenges, such as the increasing use of pesticides to control the parasitic load of the sea lice Caligus rogercresseyi. The
Valentina Valdés-Castro, Camila Fernandez, Camila Fernandez, Camila Fernandez, Camila Fernandez   +4 more
doaj   +1 more source

Growth of the photosynthetic bacterium Rhodopseudomonas capsulata chemoautotrophically in darkness with H2 as the energy source [PDF]

Journal of Bacteriology, 1979
The phototrophic bacterium Rhodopseudomonas capsulata was found to be capable of growing chemoautotrophically under aerobic conditions in darkness. Growth was strictly dependent on the presence of H2 as the source of energy and reducing power, O2 as the terminal electron acceptor for energy transduction, and CO2 as the sole carbon source; under optimal
M T, Madigan, H, Gest
openaire   +2 more sources

Cold seep epifaunal communities on the Hikurangi margin, New Zealand: composition, succession, and vulnerability to human activities. [PDF]

PLoS ONE, 2013
Cold seep communities with distinctive chemoautotrophic fauna occur where hydrocarbon-rich fluids escape from the seabed. We describe community composition, population densities, spatial extent, and within-region variability of epifaunal communities at ...
David A Bowden, Ashley A Rowden, Andrew R Thurber, Amy R Baco, Lisa A Levin, Craig R Smith   +5 more
doaj   +1 more source

Characterization of Poly(3-hydroxybutyrate) (P3HB) from Alternative, Scalable (Waste) Feedstocks

Bioengineering, 2023
Bioplastics hold significant promise in replacing conventional plastic materials, linked to various serious issues such as fossil resource consumption, microplastic formation, non-degradability, and limited end-of-life options.
Rogerio Ramos de Sousa Junior, Fabiano Eduardo Marques Cezario, Leonardo Dalseno Antonino, Demetrio Jackson dos Santos, Maximilian Lackner   +4 more
doaj   +1 more source

Nested interactions between chemosynthetic lucinid bivalves and seagrass promote ecosystem functioning in contaminated sediments

Frontiers in Plant Science, 2022
In seagrass sediments, lucinid bivalves and their chemoautotrophic bacterial symbionts consume H2S, relying indirectly on the plant productivity for the presence of the reduced chemical. Additionally, the role of lucinid bivalves in N provisioning to the
Ulisse Cardini, Lazaro Marín-Guirao, Lazaro Marín-Guirao, Luis M. Montilla, Ugo Marzocchi, Ugo Marzocchi, Salvatore Chiavarini, Juri Rimauro, Grazia Marina Quero, Grazia Marina Quero, Jillian M. Petersen, Gabriele Procaccini   +11 more
doaj   +1 more source