Results 21 to 30 of about 5,235,766 (308)

Bomb-14C analysis of ecosystem respiration reveals that peatland vegetation facilitates release of old carbon [PDF]

open access: yes, 2009
The largest terrestrial-to-atmosphere carbon flux is respired CO2. However, the partitioning of soil and plant sources, understanding of contributory mechanisms, and their response to climate change are uncertain.
Fallick, A. E.   +9 more
core   +1 more source

Experimental substantiation of permeabilized hepatocytes model for investigation of mitochondria in situ respiration [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2015
To verify experimentally the model of permeabilized hepatocytes, the degree of cell permeability was assessed using trypan blue and polarographycally determined cell respiration rate upon succinate (0.35 mM) and α-ketoglutarate (1 mM) oxidation ...
V. M. Merlavsky   +3 more
doaj   +1 more source

Uncoupled respiration stability of isolated pancreatic acini as a novel functional test for cell vitality

open access: yesБіологічні студії, 2023
Background. Assessment of cell viability is crucial in cell studies. Testing plasma membrane integrity is a traditional approach of evaluating cell viability. Mitochondrial functional capacity closely correlates with plasma membrane integrity and overall
Anastasiia Zub   +4 more
doaj   +1 more source

Role of Second Quinone Binding Site in Proton Pumping by Respiratory Complex I

open access: yesFrontiers in Chemistry, 2019
Respiratory complex I performs the reduction of quinone (Q) to quinol (QH2) and pumps protons across the membrane. Structural data on complex I have provided spectacular insights into the electron and proton transfer paths, as well as into the long (~30 ...
Outi Haapanen   +3 more
doaj   +1 more source

Alternative oxidase dependent respiration leads to an increased mitochondrial content in two long-lived mutants of the aging model Podospora anserina [PDF]

open access: yes, 2011
The retrograde response constitutes an important signalling pathway from mitochondria to the nucleus which induces several genes to allow compensation of mitochondrial impairments.
Koen Houthoofd   +24 more
core   +1 more source

ESTIMATING CONTRIBUTION OF ZOOXANTHELLAE TO ANIMAL RESPIRATION (CZAR) AND TO ANIMAL GROWTH (CZAG) OF GIANT CLAM Tridacna maxima [PDF]

open access: yes, 2006
Zooxanthellae are symbiotic dinoflagellate algae which live in association with marine invertebrates including giant clams. These algae are capable of translocating part of their photosynthetic products to the host.
Ambariyanto, A
core   +1 more source

Nrf2 impacts cellular bioenergetics by controlling substrate availability for mitochondrial respiration [PDF]

open access: yes, 2013
Transcription factor Nrf2 and its repressor Keap1 regulate a network of cytoprotective genes involving more than 1% of the genome, their best known targets being drug-metabolizing and antioxidant genes.
Iain Hargreaves   +29 more
core   +1 more source

Bacteria hold their breath upon surface contact as shown in a strain of Escherichia coli, using dispersed surfaces and flow cytometry analysis. [PDF]

open access: yesPLoS ONE, 2014
Bacteria are ubiquitously distributed throughout our planet, mainly in the form of adherent communities in which cells exhibit specific traits. The mechanisms underpinning the physiological shift in surface-attached bacteria are complex, multifactorial ...
Jing Geng   +3 more
doaj   +1 more source

Largen: A Molecular Regulator of Mammalian Cell Size Control [PDF]

open access: yes, 2014
Little is known about how mammalian cells maintain cell size homeostasis. We conducted a novel genetic screen to identify cell-size-controlling genes and isolated Largen, the product of a gene (PRR16) that increased cell size upon overexpression in human
Gandin, Valentina   +22 more
core   +1 more source

Multi-Sensor Arrays for Online Monitoring of Cell Dynamics in in vitro Studies with Choroid Plexus Epithelial Cells

open access: yesSensors, 2012
Sensors and multi-sensor arrays are the basis of new technologies for the non-label monitoring of cell activity. In this paper we show that choroid plexus cells can be cultured on silicon chips and that sensors register in real time changes in their ...
Soledad García Gómez de las Heras   +2 more
doaj   +1 more source

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