Results 31 to 40 of about 31,993 (271)

Inducing the Alternative Oxidase Forms Part of the Molecular Strategy of Anoxic Survival in Freshwater Bivalves

open access: yesFrontiers in Physiology, 2018
Hypoxia in freshwater ecosystems is spreading as a consequence of global change, including pollution and eutrophication. In the Patagonian Andes, a decline in precipitation causes reduced lake water volumes and stagnant conditions that limit oxygen ...
Maria S. Yusseppone   +6 more
doaj   +1 more source

A two-stage, two-organism process for biohydrogen from glucose [PDF]

open access: yes, 2006
H2 can potentially be produced in a two-stage biological process: the fermentation of glucose by Escherichia coli HD701 and the photofermentation of the residual medium by Rhodobacter sphaeroides O.U. 001. In a typical batch fermentation, E.
Macaskie, LE, Redwood, MD
core   +1 more source

Corrosion protection by anaerobiosis

open access: yesWater Science and Technology, 2001
Biofilm-forming bacteria can protect mild (unalloyed) steel from corrosion. Mild steel coupons incubated with Rhodoccocus sp. strain C125 and Pseudomonas putida mt2 in an aerobic phosphate-buffered medium containing benzoate as carbon and energy source, underwent a surface reaction leading to the formation of a corrosion-inhibiting vivianite layer [Fe3(
H P, Volkland   +3 more
openaire   +2 more sources

Fnr and ArcA Regulate Lipid A Hydroxylation in Salmonella Enteritidis by Controlling lpxO Expression in Response to Oxygen Availability

open access: yesFrontiers in Microbiology, 2018
Lipid A is the bioactive component of lipopolysaccharide, and presents a dynamic structure that undergoes modifications in response to environmental signals. Many of these structural modifications influence Salmonella virulence. This is the case of lipid
Paulina A. Fernández   +7 more
doaj   +1 more source

Differential Gene Expression of Mucor lusitanicus under Aerobic and Anaerobic Conditions

open access: yesJournal of Fungi, 2022
Mucor lusitanicus and some other members of the fungal order Mucorales display the phenomenon of morphological dimorphism. This means that these fungi aerobically produce filamentous hyphae, developing a coenocytic mycelium, but they grow in a multipolar
Mónika Homa   +8 more
doaj   +1 more source

The aggregation of Brucella abortus occurs under microaerobic conditions and promotes desiccation tolerance and biofilm formation [PDF]

open access: yes, 2012
Brucella abortus causes brucellosis mainly in cattle. The infection is transmitted to humans by ingestion of animal products or direct contact with infected material.
Almiron, Marta A.   +2 more
core   +1 more source

Temperature affects the use of storage fatty acids as energy source in a benthic copepod (Platychelipus littoralis, Harpacticoida) [PDF]

open access: yes, 2016
The utilization of storage lipids and their associated fatty acids (FA) is an important means for organisms to cope with periods of food shortage, however, little is known about the dynamics and FA mobilization in benthic copepods (order Harpacticoida ...
De Troch, Marleen   +3 more
core   +2 more sources

Haloferax volcanii Immersed Liquid Biofilms Develop Independently of Known Biofilm Machineries and Exhibit Rapid Honeycomb Pattern Formation

open access: yesmSphere, 2020
The ability to form biofilms is shared by many microorganisms, including archaea. Cells in a biofilm are encased in extracellular polymeric substances that typically include polysaccharides, proteins, and extracellular DNA, conferring protection while ...
Heather Schiller   +8 more
doaj   +1 more source

Oxygen availability strongly affects chronological lifespan and thermotolerance in batch cultures of Saccharomyces cerevisiae

open access: yesMicrobial Cell, 2015
Stationary-phase (SP) batch cultures of Saccharomyces cerevisiae, in which growth has been arrested by carbon-source depletion, are widely applied to study chronological lifespan, quiescence and SP-associated robustness.
Markus M.M. Bisschops   +5 more
doaj   +1 more source

Climate change and temperature dependent biogeography: oxygen limitation of thermal tolerance in animals [PDF]

open access: yes, 2001
Recent years have shown a rise in mean global temperatures and a shift in the geographical distribution of ectothermic animals. For a cause and effect analysis the present paper discusses those physiological processes limiting thermal tolerance.
Pörtner, Hans-Otto
core   +1 more source

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