Double limitation kinetics of Sulfolobus metallicus by oxygen, energy, and carbon source.
Best insight from top research papers
Double limitation kinetics of Sulfolobus metallicus by oxygen, energy, and carbon source have been studied in several papers. Silva et al. found that the growth of Sulfolobus metallicus is affected by the availability of nitrogen and phosphorus, which influence cellular growth and the types of products generated . Cautivo et al. investigated the gas limitations in bioleaching microorganisms and concluded that CO2 is the limiting nutrient for cell growth in the bioleaching of chalcopyrite concentrate using hyperthermophilic microorganisms . De Kock et al. examined the effects of dissolved oxygen (DO) concentration on the microbial activity of Sulfolobus sp. U40813 and found that the optimal DO concentration for iron oxidation was between 1.5 and 4.1 mg.l(-1) . Bae and Rittmann developed a structured model of substrate-utilization kinetics that incorporates dual-limitation conditions caused by low concentrations of the electron donor and acceptor . Tsaplina et al. compared the growth characteristics of Sulfobacillus sibiricus N1 and SSO under oxygen limitation and found that oxygen limitation resulted in longer generation time, decreased cell yield, and accumulation of exometabolites in the medium .
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
5 Citations | The provided paper does not mention the double limitation kinetics of Sulfolobus metallicus by oxygen, energy, and carbon source. |
18 Citations | The provided paper does not mention Sulfolobus metallicus or double limitation kinetics. The paper is about the response to oxygen limitation in bacteria of the genus Sulfobacillus. |
| The provided paper does not discuss the double limitation kinetics of Sulfolobus metallicus by oxygen, energy, and carbon source. | |
115 Citations | The provided paper does not mention the specific organism Sulfolobus metallicus or the specific substrates oxygen, energy, and carbon source. Therefore, the paper does not provide information on the double limitation kinetics of Sulfolobus metallicus by these substrates. |
29 Citations | The provided paper does not mention Sulfolobus metallicus or double limitation kinetics. The paper focuses on the effects of dissolved oxygen and CO2 concentrations on the microbial activity of Sulfolobus sp. U40813, a thermophilic bioleaching archaeon. |
Related Questions
Do other metallic ions, similar to copper, work optimally at a threshold concentration in metabolic pathways?5 answersMetal ions, including copper, play essential roles in metabolic pathways, with optimal intracellular concentrations crucial for proper function. Research indicates that iron and copper affect metabolism in Trichoderma harzianum, with specific concentrations impacting glycolysis and the TCA cycle metabolites. Moreover, copper is vital for bacterial cells' survival, with systems like the Cus system in E. coli involved in copper homeostasis and resistance mechanisms. The study of gene annotations using Gene Ontology reveals the importance of determining optimal similarity thresholds to interpret results accurately, highlighting the significance of thresholds in assessing gene similarities and functions. Therefore, similar to copper, other metallic ions may also exhibit optimal threshold concentrations in metabolic pathways to ensure proper cellular function and homeostasis.
How to determine if a reaction is limited by mass transfer or kinetics?5 answersThe determination of whether a reaction is limited by mass transfer or kinetics can be made by examining various factors. The degree of crosslinking, swelling behavior, and hydrophile/hydrophobe ratio of a complex can influence the diffusional characteristics of a membrane. Solvent properties like viscosity, ionic strength, and hydrogen bonding propensity can affect the kinetics of reactions in solution. Damkohler number matrices can be used to measure the rates of reactions and mass transfer relative to product removal, providing insights into the effects of kinetics and mass transfer on extractive reaction processes. In the polycondensation process of poly(ethylene terephthalate), stagnant film experiments can be used to study the characteristics of reactions without the effect of mass transfer. The kinetic rate equations, using a kernel determined by the clusters fractal geometry, can model reaction-limited cluster aggregation and provide insights into the kinetics of the process.
What are the limiting factors for the application of electron shuttles in microbial fuel cells?5 answersThe limiting factors for the application of electron shuttles in microbial fuel cells (MFCs) include the availability of electron carriers and the efficiency of extracellular electron transfer (EET) between the electrogens and the anodes. The power density and current density in MFCs can be increased by reducing the surface area of the cathode, changing the order of the strains in the consortium, and adding additional electron carriers such as humic acids and cytochrome C. The composition of the microbial community and the different types of electron transfer mechanisms to the anode also affect the performance of MFCs. MFCs with a naked anode and a biofilm allowed unrestricted development showed the best performance, with both direct and mediated electron transfer occurring simultaneously. Manipulating the synthesis pathways of electron shuttles, such as pyocyanin, can improve the EET efficiency and power output of MFCs. In addition, the presence of electrochemical active compounds, such as 2,6-di-tert-butyl-p-benzoquinone (2,6-DTBBQ), can act as recyclable electron shuttles and enhance the electricity power output of MFCs.
What are the factors that limit photosynthetic efficiency?5 answersPhotosynthetic efficiency is limited by various factors. These include stomatal conductance, mesophyll conductance, biochemical capacity combined with Rubisco, the Calvin-Benson cycle, thylakoid membrane electron transport, nonphotochemical quenching, and carbon metabolism or fixation pathways. Additionally, abiotic stresses such as salinity, drought, flooding, and adverse temperatures can also negatively impact photosynthetic carbon fixation. Under such stresses, the photoproduction of reactive oxygen species (ROS) can damage the photosynthetic reaction centers, resulting in a decline in primary productivity. Furthermore, fluctuations in light intensity and variations in the spectrum can decrease photosystem II efficiency. The responses of plant photosynthesis to rapid fluctuations in environmental conditions are also critical for efficient capture of light energy. By understanding and targeting these limiting factors, it may be possible to improve photosynthetic efficiency and enhance crop productivity.
What are the limitations of?1 answersTranscatheter aortic valve implantation (TAVI) has limitations including adverse events such as vascular complications, the need for pacemaker implantation, and paravalvular regurgitation. There are also uncertainties regarding valve durability, which can limit TAVI treatment in younger patients at lower risk. Radar altimeter measurements of the marine geoid have limitations due to insufficient track density, but the combination of high-density data sets has provided a global view of all the ocean basins. The situation calculus methodology for expressing facts about action and change has limitations that have not been systematically investigated. Concentration limits for exposure to radioactivity or chemicals have limitations in terms of proving compliance, as measurements are subject to uncertainties and there is always a certain probability for a wrong decision. There are practical and in-principle limitations to what can be computed, described, communicated, and proven, particularly in relation to the natural numbers.
What are the limitations of the current methods for synthesising sulfur organic compounds?4 answersThe current methods for synthesizing sulfur organic compounds have several limitations. These include the use of volatile, toxic, and unstable sulfur sources, as well as the use of volatile organic compound (VOC) solvents. Additionally, the analysis of sulfur gases using Carboxen/PDMS fibers for solid-phase microextraction (SPME) can lead to potential errors due to competition for active sites on the fiber and varying interactions between different sulfur compounds. Furthermore, the selective addition of 34S enriched nucleophiles can result in 34S enrichment during sulfurization reactions, which can affect the accuracy of isotope equilibrium measurements. Finally, the synthesis of sulfur-containing compounds often requires the use of specific donor compounds and amine catalysts, limiting the range of compounds that can be prepared.