Results 201 to 210 of about 40,295 (219)
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Respiration in Heterotrophic Unicellular Eukaryotic Organisms
Protist, 2014Surface:volume quotient, mitochondrial volume fraction, and their distribution within cells were investigated and oxygen gradients within and outside cells were modelled. Cell surface increases allometrically with cell size. Mitochondrial volume fraction is invariant with cell size and constitutes about 10% and mitochondria are predominantly found ...
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Rhizospheric, mycorrhizal and heterotrophic respiration in dry grasslands
European Journal of Soil Biology, 2018Abstract The main objective of the present study was to determine the contributions of autotrophic and heterotrophic components to the total soil CO2 efflux over three years with high-frequency data acquisition by means of automated measurements.
Marianna Papp +7 more
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Amino acid uptake and respiration by marine heterotrophs
Marine Biology, 1976The concentration and turnover of dissolved free amino acids were measured in samples from 25 and 100 m on three occasions at a station 6 miles off the California (USA) coast. Individual amino acid concentrations varied from undetectable (
P. J. Le B. Williams +2 more
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Diel patterns of autotrophic and heterotrophic respiration among phenological stages
Global Change Biology, 2013AbstractImproved understanding of the links between aboveground production and allocation of photosynthate to belowground processes and the temporal variation in those links is needed to interpret observations of belowground carbon cycling processes. Here, we show that combining a trenching manipulation with high‐frequency soil respiration measurements
K, Savage, E A, Davidson, J, Tang
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Heterotrophic respiration causes seasonal hysteresis in soil respiration in a warm-temperate forest
Journal of Forest Research, 2012To assess the effect of changes in organic litter stock on seasonal changes in heterotrophic respiration (R H), soil respiration (R S), and total ecosystem respiration (R E), we measured seasonal changes in leaf litter respiration (R LL) by the chamber method and estimated the seasonal ...
Yuji Kominami +7 more
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Thermal Compensatory Response of Soil Heterotrophic Respiration Following Wildfire
Environmental Science & TechnologyFrequent wildfires pose a serious threat to carbon (C) dynamics of forest ecosystems under a warming climate. Yet, how wildfires alter the temperature sensitivity (Q10) of soil heterotrophic respiration (Rh) as a critical parameter determining the C efflux from burned landscapes remains unknown.
Haojie Shen +8 more
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Science of The Total Environment
Soil respiration (Rs) is a major component of the global carbon (C) cycle and is influenced by the availability of nutrients such as phosphorus (P). However, the response of Rs to P addition in P-limited subtropical forest ecosystems and the underlying mechanisms remain poorly understood.
Yun, Xia +7 more
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Soil respiration (Rs) is a major component of the global carbon (C) cycle and is influenced by the availability of nutrients such as phosphorus (P). However, the response of Rs to P addition in P-limited subtropical forest ecosystems and the underlying mechanisms remain poorly understood.
Yun, Xia +7 more
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Thermal adaptation of heterotrophic soil respiration in laboratory microcosms
Global Change Biology, 2010AbstractRespiration of heterotrophic microorganisms decomposing soil organic carbon releases carbon dioxide from soils to the atmosphere. In the short term, soil microbial respiration is strongly dependent on temperature. In the long term, the response of heterotrophic soil respiration to temperature is uncertain.
MARK A. BRADFORD +2 more
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Widespread asymmetric response of soil heterotrophic respiration to warming and cooling
Science of The Total Environment, 2018Soil is the largest organic carbon (C) pool in terrestrial ecosystems. Periodic changes in environmental temperature occur diurnally and seasonally; yet, the response of soil organic matter (SOM) decomposition to varying temperatures remains unclear. In this study, we conducted a modified incubation experiment using soils from 16 forest ecosystems in ...
Yuan Liu +9 more
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Soil Biology and Biochemistry, 2016
Abstract Decline in soil biodiversity associated with anthropogenic activities has raised concerns about the consequences for ecosystem functions. It remains uncertain how important soil microbial diversity is relative to abiotic factors, and how they interact, in driving ecosystem processes.
Fen-Guo Zhang, Quan-Guo Zhang
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Abstract Decline in soil biodiversity associated with anthropogenic activities has raised concerns about the consequences for ecosystem functions. It remains uncertain how important soil microbial diversity is relative to abiotic factors, and how they interact, in driving ecosystem processes.
Fen-Guo Zhang, Quan-Guo Zhang
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