Results 31 to 40 of about 43,240 (245)

Composition and Ecological Roles of the Core Microbiome along the Abyssal-Hadal Transition Zone Sediments of the Mariana Trench

Microbiology Spectrum, 2022
The unique geological features of hadal trenches are known to influence both the structure and ecological function of microbial communities. It is also well known that heterotrophs and chemoautotrophs dominate the hadal and abyssal pelagic zones ...
Hongmei Jing, Xiang Xiao, Yue Zhang, Zhiyong Li, Huahua Jian, Yingfeng Luo, Zhuang Han   +6 more
doaj   +1 more source

Re-Programing Glucose Catabolism in the Microalga Chlorella sorokiniana under Light Condition

Biomolecules, 2022
The microalga Chlorella sorokiniana has attracted much attention for lipid production and wastewater treatment. It can perform photosynthesis and organic carbon utilization concurrently.
Tingting Li, Na Pang, Lian He, Yuan Xu, Xinyu Fu, Yinjie Tang, Yair Shachar-Hill, Shulin Chen   +7 more
doaj   +1 more source

Enhanced Dark Carbon Dioxide Fixation in Maize [PDF]

Plant Physiology, 1979
The enhanced dark CO(2) uptake after a preillumination period under varying O(2) concentrations has been measured with maize, a C(4) plant. For comparison the same study has been conducted with tomato, a C(3) plant. Increasing the O(2) concentration during preillumination inhibits by 70% the subsequent dark CO(2) uptake in tomato but stimulates 2-fold ...
openaire   +1 more source

Relevance of Nutrient-Limited Phytoplankton Production and Its Bacterial Remineralization for Carbon and Oxygen Fluxes in the Baltic Sea

Frontiers in Marine Science, 2019
The Baltic Sea is prone to oxygen deficiency due to the restricted water exchange with the North Sea in coincidence with a high biological oxygen demand.
Judith Piontek, Sonja Endres, Frédéric A. C. Le Moigne, Markus Schartau, Anja Engel   +4 more
doaj   +1 more source

Heterotrophic Carbon Fixation in a Salamander-Alga Symbiosis

Frontiers in Microbiology, 2020
The unique symbiosis between a vertebrate salamander, Ambystoma maculatum, and unicellular green alga, Oophila amblystomatis, involves multiple modes of interaction. These include an ectosymbiotic interaction where the alga colonizes the egg capsule, and
John A. Burns, John A. Burns, Ryan Kerney, Solange Duhamel, Solange Duhamel   +4 more
doaj   +1 more source

Deoxygenation enhances photosynthetic performance and increases N2 fixation in the marine cyanobacterium Trichodesmium under elevated pCO2

Frontiers in Microbiology, 2023
Effects of changed levels of dissolved O2 and CO2 on marine primary producers are of general concern with respect to ecological effects of ongoing ocean deoxygenation and acidification as well as upwelled seawaters.
He Li, Kunshan Gao, Kunshan Gao
doaj   +1 more source

Direct and indirect costs of dinitrogen fixation in Crocosphaera watsonii WH8501 and possible implications for the nitrogen cycle

Frontiers in Microbiology, 2012
The recent detection of heterotrophic nitrogen (N2) fixation in deep waters of the southern Californian and Peruvian OMZ questions our current understanding of marine N2 fixation as a process confined to oligotrophic surface waters of the oceans.
Tobias eGroßkopf, Julie eLaRoche
doaj   +1 more source

Critical Role of Light in the Growth and Activity of the Marine N2-Fixing UCYN-A Symbiosis

Frontiers in Microbiology, 2021
The unicellular N2-fixing cyanobacteria UCYN-A live in symbiosis with haptophytes in the Braarudosphaera bigelowii lineage. Maintaining N2-fixing symbioses between two unicellular partners requires tight coordination of multiple biological processes ...
Marine Landa, Kendra A. Turk-Kubo, Francisco M. Cornejo-Castillo, Britt A. Henke, Jonathan P. Zehr   +4 more
doaj   +1 more source

Major role of microbes in carbon fluxes during Austral winter in the Southern Drake Passage. [PDF]

PLoS ONE, 2009
Carbon cycling in Southern Ocean is a major issue in climate change, hence the need to understand the role of biota in the regulation of carbon fixation and cycling.
Maura Manganelli, Francesca Malfatti, Ty J Samo, B Greg Mitchell, Haili Wang, Farooq Azam   +5 more
doaj   +1 more source

Prokaryotic responses to ammonium and organic carbon reveal alternative CO2 fixation pathways and importance of alkaline phosphatase in the mesopelagic North Atlantic

Frontiers in Microbiology, 2016
To decipher the response of mesopelagic prokaryotic communities to input of nutrients, we tracked changes in prokaryotic abundance, extracellular enzymatic activities, heterotrophic production, dark dissolved inorganic carbon (DIC) fixation, community ...
Federico Baltar, Federico Baltar, Daniel Lundin, Joakim Palovaara, Itziar Lekunberri, Thomas Reinthaler, Gerhard Josef Herndl, Jarone Pinhassi   +7 more
doaj   +1 more source