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7 results for “dark respiration”
Light-saturated photosynthetic rate, dark respiration, stomatal conductance and ratio of internal to external carbon dioxide concentration from the 1980-82 Eriophorum vaginatum reciprocal transplant plots from Eagle Creek to Prudhoe Bay, Alaska, 2010
In 1980-1982, six transplant gardens were established along a latitudinal gradient in interior Alaska from Eagle Creek, AK, in the south to Prudhoe Bay, AK, in the north (Shaver et al. 1986) .Three sites, Toolik Lake (TL), Sagwon (SAG), and Prudhoe Bay (PB) are north of the continental divide and the remaining three, Eagle Creek (EC), No Name Creek (NN), and Coldfoot (CF), are south of the continental divide. Each garden consisted of 10 individual tussocks transplanted back to their home-site, as well as 10 individuals from each of the other transplant sites. Data were collected in July 2010 for tussocks transplanted in 1980-82 in a reciprocal transplant experiment and then harvested in 2011. Important variables are garden name, source population, light-saturated photosynthetic rate, dark respiration, stomatal conductance and ratio of internal to external carbon dioxide concentration.
Carbon dioxide response curve, dark respiration, specific leaf area, and leaf nitrogen data for the 2014 Eriophorum vaginatum reciprocal transplant gardens at Toolik Lake and Sagwon, AK, collected in 2016.
Transplant gardens at Toolik Lake and Sagwon were established in 2014. At each location, 60 tussocks each from ecotypes of Eriophorum vaginatum from Coldfoot (CF, 67°15′32″N, 150°10′12″W), Toolik Lake (TL, 68°37′44″N, 149°35′0″W), and Sagwon (SAG, 69°25′26″N, 148°42′49″W) were transplanted. Half the transplanted tussocks were grown under ambient conditions, while the other half were exposed to passive warming supplied by open-top chambers (OTC). Data were collected in late June through July 2016 include carbon dioxide response curve data, dark respiration, specific leaf area, and leaf nitrogen content.
Dark respiration and photosynthesis data from Dry Heath Nitrogen & Phosphorus addition plots, Arctic LTER, Toolik Field Station, Alaska, summers 2023-2024.
To determine the effects of weather variability on Arctic plant functioning, we conducted this study looking at the response of plant dark respiration and photosynthesis to short-term, high-frequency, temperature and light variability. We measured Betula nana, Chamaenerion angustifolium, and Calamagrostis stricta from the dry heath tundra N&P fertilized plots. We took measurements through two summer seasons. The first summer we obtained data regarding responses to variable temperature and light, and in the second summer we obtained the dark respiration to temperature response and photosynthesis to light response curves.
Temperature response of dark respiration from the 1980-82 Eriophorum vaginatum reciprocal transplant experiment along Dalton Highway, Alaska.
These data were collected in July 2011 for tussocks transplanted in 1980-82 in a reciprocal transplant experiment and harvested in 2011. Important variables are garden name, source population, and dark respiration.
Data archive for: Resting cells of Skeletonema marinoi assimilate organic compounds and respire by dissimilatory nitrate reduction to ammonium in dark, anoxic conditions
<p>Data archive for: “Resting cells of <em>Skeletonema marinoi</em> assimilate organic compounds and respire by dissimilatory nitrate reduction to ammonium in dark, anoxic conditions” <a href="https://doi.org/10.1111/1462-2920.16625">https://doi.org/10.1111/1462-2920.16625</a></p> <p> </p> <p>Dataset of single cell assimilation of organic/inorganic C/N by resting cells of the marine diatom <em>Skeletonema marinoi</em> captured using secondary ion mass spectrometry (SIMS) and stable isotopic tracers. The dataset also contains POC/PON changes over time during dormancy, DNRA (<sup>15</sup>N-NH<sub>4</sub><sup>+</sup> production), denitrification (<sup>15</sup>N-N<sub>2</sub> production) and a germination assay to determine survival rate, most probable number analysis (MPN). </p> <p>Two strains (GF04 and R05) were incubated in dark and anoxic conditions in two different incubation experiments.</p> <p>Incubation 1: Diatoms treated with antibiotics before entering dormancy compared to a control not treated with antibiotics then given <sup>15</sup>N-NO<sub>3</sub><sup>-</sup> in dark anoxic conditions.</p> <p>Incubation 2: Diatoms treated with antibiotics given, <sup>15</sup>N & <sup>13</sup>C urea, <sup>15</sup>N & <sup>13</sup>C urea + <sup>14</sup>N-NO<sub>3</sub><sup>-</sup>, <sup>13</sup>C-acetate, <sup>13</sup>C-acetate + <sup>15</sup>N-NO<sub>3</sub><sup>-</sup>, or <sup>15</sup>N-NO<sub>3</sub><sup>-</sup>.</p> <p>See the main manuscript for a extensive experimental setup.</p> <p> </p> <p><strong>Each file is uploaded as both a .CSV and .XLSX, so that you can choose which you prefer.</strong></p> <p><strong>DNRA_and_denitrification.csv/xlsx:</strong> DRNA and denitrification depending on volume (Incubation 1)</p> <p><strong>DNRA_per_cell.csv/xlsx:</strong> DNRA per cell (Incubation 1 & 2)</p> <p><strong>MPN_data.csv/xlsx:</strong> Most probable number analysis (Incubation 1 & 2)</p> <p><strong>POC_PON.csv/xlsx:</strong> POC and PON per cell and volume (Incubation 1 & 2)</p> <p><strong>SIMS_data.csv/xlsx:</strong> SIMS data (Incubation 1 & 2)</p> <p> </p> <p> </p>
Respiration patterns in the dark ocean
<p><strong>O2_utilization_rates.mat</strong></p> <p>Matlab data file containing the OUR data showed in Fig. 5. For each variable, the first dimension is for each of the 5000 Monte Carlo simulations, the second dimension is for each of the 10 regions, and the third dimension is for each of the defined isopycnals. </p> <p> </p> <p><strong>DOC_consumption_rates.mat</strong></p> <p>Matlab data file containing the OUR data showed in Fig. 5. For each variable, the first dimension is for each of the 5000 Monte Carlo simulations, the second dimension is for each of the 10 regions, and the third dimension is for each of the defined isopycnals. </p> <p> </p> <p><strong>Results_summary.xlsx</strong></p> <p>These are all the data included in Table S1, the data necessary to plot Fig. 10, and the data required to compute the spatially integrated values. </p> <p> </p> <p><strong>OUR_data_compil.xlsx</strong></p> <p>This is a short data compilation of oxygen utilisation rates, that was used to compare with results obtained in Sulpis et al. (in preparation): "Respiration patterns in the dark ocean". </p> <p>Data included in this file are from the following studies: </p> <p>Feely, R. A., Sabine, C. L., Schlitzer, R., Bullister, J. L., Mecking, S., & Greeley, D. (2004). Oxygen Utilization and Organic Carbon Remineralization in the Upper Water Column of the Pacific Ocean. Journal of Oceanography, 60, 45–52.</p> <p>Hinga, K. R. (1985). Evidence for a higher average primary productivity in the Pacific than in the Atlantic Ocean. Deep Sea Research Part A. Oceanographic Research Papers, 32(2), 117–126. https://doi.org/10.1016/0198-0149(85)90023-8</p> <p>Karstensen, J., Stramma, L., & Visbeck, M. (2008). Oxygen minimum zones in the eastern tropical Atlantic and Pacific oceans. Progress in Oceanography, 77(4), 331–350. https://doi.org/10.1016/j.pocean.2007.05.009</p> <p>Wang, W., Cai, M., Huang, P., Ke, H., Liu, M., Liu, L., Deng, H., Luo, B., Wang, C., Zheng, X., & Li, W. (2021). Transit Time Distributions and Apparent Oxygen Utilization Rates in Northern South China Sea Using Chlorofluorocarbons and Sulfur Hexafluoride Data—Wang—2021—Journal of Geophysical Research: Oceans—Wiley Online Library. Journal of Geophysical Research Oceans, 126(8). https://agupubs-onlinelibrary-wiley-com.proxy.library.uu.nl/doi/10.1029/2021JC017535</p> <p>Craig, H. (1971). The deep metabolism: Oxygen consumption in abyssal ocean water. Journal of Geophysical Research (1896-1977), 76(21), 5078–5086. https://doi.org/10.1029/JC076i021p05078</p> <p>Jenkins, W. J. (1998). Studying subtropical thermocline ventilation and circulation using tritium and 3He. Journal of Geophysical Research: Oceans, 103(C8), 15817–15831. https://doi.org/10.1029/98JC00141</p> <p>Jenkins, W. J. (1982). Oxygen utilization rates in North Atlantic subtropical gyre and primary production in oligotrophic systems. Nature, 300(5889), 246–248.</p> <p>Sarmiento, J. L., Thiele, G., Key, R. M., & Moore, W. S. (1990). Oxygen and nitrate new production and remineralization in the North Atlantic subtropical gyre. Journal of Geophysical Research: Oceans, 95(C10), 18303–18315. https://doi.org/10.1029/JC095iC10p18303</p> <p>Naqvi, S. W. A., Shailaja, M. S., Dileep Kumar, M., & Sen Gupta, R. (1996). Respiration rates in subsurface waters of the northern Indian Ocean: Evidence for low decomposition rates of organic matter within the water column in the Bay of Bengal. Deep Sea Research Part II: Topical Studies in Oceanography, 43(1), 73–81. https://doi.org/10.1016/0967-0645(95)00080-1</p> <p>Arı́stegui, J., Denis, M., Almunia, J., & Montero, M. F. (2002). Water-column remineralization in the Indian sector of the Southern Ocean during early spring. Deep Sea Research Part II: Topical Studies in Oceanography, 49(9–10), 1707–1720. https://doi.org/10.1016/S0967-0645(02)00008-5</p> <p>Broecker, W. S., Blanton, S., Smethie, W. M., & Ostlund, G. (1991). Radiocarbon decay and oxygen utilization in the Deep Atlantic Ocean. Global Biogeochemical Cycles, 5(1), 87–117. https://doi.org/10.1029/90GB02279</p>
Developmental stage specificity of transcriptional, biochemical and CO2 efflux responses of leaf dark respiration to growth of Arabidopsis thaliana at elevated [CO2]
GEO Series GSE56480. Arabidopsis thaliana. 22 samples. Type: Expression profiling by array.
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