Results 91 to 100 of about 1,383 (182)
Nutritional modes of unicellular eukaryotes range from pure photoautotrophy of some phytoplankton to pure heterotrophy of species typically called protozoa.
Kevin J. Carpenter +5 more
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Undocumented potential for primary productivity in a globally-distributed bacterial photoautotroph
Aerobic anoxygenic phototrophs (AAnPs) are common in the global oceans and are associated with photoheterotrophic activity. To date, AAnPs have not been identified in the surface ocean that possess the potential for carbon fixation. Using the Tara Oceans
J.F. Heidelberg, E.D. Graham, B.J. Tully
core +1 more source
The paleobiological record of photosynthesis [PDF]
Fossil evidence of photosynthesis, documented in Precambrian sediments by microbially laminated stromatolites, cyanobacterial microscopic fossils, and carbon isotopic data consistent with the presence of Rubisco-mediated CO2-fixation, extends from the ...
J. William Schopf, William Schopf, J
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Variability in Radiocarbon Ages of Individual Organic Compounds from Marine Sediments [PDF]
Organic carbon (OC) from multiple sources can be delivered contemporaneously to aquatic sediments. The influence of different OC inputs on carbon-14-based sediment chronologies is illustrated in the carbon-14 ages of purified, source-specific (biomarker)
T. I. Eglinton +6 more
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Sugarcane (Saccharum spp.) shoots were transferred from a heterotrophic micropropagation environment and cultured on sugar-free Murashige and Skoog (MS) salts medium in the controlled atmosphere of a growth chamber.
Walker, Paul N., Ertürk, Handan
core
Identification of two genes, sll0804 and slr1306, as putative components of the CO\u3csub\u3e2\u3c/sub\u3e-concentrating mechanism in the cyanobacterium Synechocystis sp. strain PCC 6803 [PDF]
Insertional transposon mutations in the sll0804 and slr1306 genes were found to lead to a loss of optimal photoautotrophy in the cyanobacterium Synechocystis sp. strain PCC 6803 grown under ambient CO2 concentrations (350 ppm).
Spann, Kevin W. +4 more
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Bacterial community in biological soil crusts from a Brazilian semiarid region under desertification process [PDF]
Biological soil crusts (BSC) are commonly found in soils in the drylands regions, which can influence stabilization, water retention, nutrient cycling (particularly carbon (C) and nitrogen (N) dynamics), and several ecological processes.
José Israel Pinheiro +8 more
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Sunlight, the ultimate energy source for life on our planet, enters the biosphere as a direct consequence of the evolution of photoautotrophy. Photoautotrophs must balance the light energy absorbed and trapped through extremely fast, temperature ...
Norman eHuner +6 more
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Table_1_Contrasting Soil Bacterial Community, Diversity, and Function in Two Forests in China.XLSX
Bacteria are the highest abundant microorganisms in the soil. To investigate bacteria community structures, diversity, and functions, contrasting them in four different seasons all the year round with/within two different forest type soils of China.
Xiaojing Liu (1282134) +13 more
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The aim of the present research is to observe the effect of sucrose level (0 – 6%) in the nutrient medium at the elongation stage on the rooting ability of in vitro cultivated apple rootstock M 26 (Malus domestica Borkh).
Lilyana Nacheva
doaj

