Results 21 to 30 of about 659,606 (256)

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

Improving measurements of microbial growth, death, and turnover by accounting for extracellular DNA in soils [PDF]

open access: yesSOIL
Microbial respiration, growth, and turnover are driving processes in the formation and decomposition of soil organic matter. In contrast to respiration and growth, microbial turnover and death currently lack distinct methods to be determined.
J. Schnecker   +5 more
doaj   +1 more source

Plant and Soil Enzyme Activities Regulate CO2 Efflux in Alpine Peatlands After 5 Years of Simulated Extreme Drought

open access: yesFrontiers in Plant Science, 2021
Increasing attention has been given to the impact of extreme drought stress on ecosystem ecological processes. Ecosystem respiration (Re) and soil respiration (Rs) play a significant role in the regulation of the carbon (C) balance because they are two ...
Zhongqing Yan   +19 more
doaj   +1 more source

Impact of Trametes versicolor and Phanerochaete chrysosporium on differential breakdown of pesticide mixtures in soil microcosms at two water potentials and associated respiration and enzyme activity. [PDF]

open access: yes, 2008
This study has examined the effect of inoculation of soil microcosms with Trametes versicolor and Phanerochaete chrysosporium on wood chips on differential degradation of pesticides (simazine, trifluralin and dieldrin, 10 mg kg−1 soil) at two water ...
Magan, Naresh, Fragoeiro, Silvia
core   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer. [PDF]

open access: yesFEBS Open Bio
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Martínková S, Trnka J.
europepmc   +2 more sources

β-Lactam Exposure Triggers Reactive Oxygen Species Formation in Enterococcus faecalis via the Respiratory Chain Component DMK

open access: yesCell Reports, 2019
Summary: Whereas the primary actions of β-lactams are well characterized, their downstream effects are less well understood. Although their targets are extracellular, β-lactams stimulate respiration in Escherichia coli leading to increased intracellular ...
Loïc Léger   +5 more
doaj   +1 more source

Extracellular ATP and glutamate drive pyruvate production and energy demand to regulate mitochondrial respiration in astrocytes [PDF]

open access: yes, 2020
Astrocytes respond to energetic demands by upregulating glycolysis, lactate production, and respiration. This study addresses the role of respiration and calcium regulation of respiration as part of the astrocyte response to the workloads caused by ...
Satrústegui   +3 more
core   +1 more source

Heme and menaquinone induced electron transport in lactic acid bacteria [PDF]

open access: yes, 2009
Background For some lactic acid bacteria higher biomass production as a result of aerobic respiration has been reported upon supplementation with heme and menaquinone.
Vos, W.M., de   +14 more
core   +1 more source

Distinct RNA profiles in subpopulations of extracellular vesicles: apoptotic bodies, microvesicles and exosomes [PDF]

open access: yes, 2013
Introduction: In recent years, there has been an exponential increase in the number of studies aiming to understand the biology of exosomes, as well as other extracellular vesicles.
Szabó, Tamas G   +21 more
core   +1 more source

Extracellular ATP alleviates the salicylic acid-induced inhibition of cell viability and respiration through a Ca2+-dependent mechanism

open access: yesBiologia Plantarum, 2015
Extracellular ATP (eATP) has been considered as signalling compound to mediate several physiological processes. Here we show that eATP played a role in alleviating the salicylic acid (SA)-induced inhibition of cell viability and respiration in tobacco ...
H. Q. Feng   +5 more
doaj   +1 more source

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