Results 41 to 50 of about 24,736 (213)
Frontiers in Microbiology, 2016 To evaluate microbiological safety of tulathromycin on human intestinal bacteria, tulathromycin (0, 0.1, 1,10 and 100μg/mL) was added into Chemostats. Before and after drug exposure, we monitored 1) population, SCFA products, antimicrobial resistance and
Haihong eHao +7 more
doaj +1 more source
Making the most of clade selection [PDF]
, 2017 Clade selection is unpopular with philosophers who otherwise accept multilevel selection theory. Clades cannot reproduce, and reproduction is widely thought necessary for evolution by natural selection, especially of complex adaptations.
Doolittle, W. Ford
core +1 more source
Proteomic and Isotopic Response of Desulfovibrio vulgaris to DsrC Perturbation
Frontiers in Microbiology, 2019 Dissimilatory sulfate reduction is a microbial energy metabolism that can produce sulfur isotopic fractionations over a large range in magnitude. Calibrating sulfur isotopic fractionation in laboratory experiments allows for better interpretations of ...
William D. Leavitt +9 more
doaj +1 more source
Influence of diffusion and convection on the chemostat dynamics [PDF]
Компьютерные исследования и моделирование, 2012 Population dynamics is considered in a modified chemostat model including diffusion, chemotaxis, and nonlocal competitive losses. To account for influence of the external environment on the population of the ecosystem, a random parameter is included into
Aleksei Vladimirovich Borisov +2 more
doaj +1 more source
A Rosenzweig-MacArthur (1963) Criterion for the Chemostat
The Scientific World Journal, 2016 The Rosenzweig-MacArthur (1963) criterion is a graphical criterion that has been widely used for elucidating the local stability properties of the Gause (1934) type predator-prey systems.
Torsten Lindström, Yuanji Cheng
doaj +1 more source
The chemostat with lateral gene transfer [PDF]
Journal of Biological Dynamics, 2010 We investigate the standard chemostat model when lateral gene transfer is taken into account. We will show that when the different genotypes have growth rate functions that are sufficiently close to a common growth rate function, and when the yields of the genotypes are sufficiently close to a common value, then the population evolves to a globally ...
Patrick, De Leenheer +3 more
openaire +2 more sources
Genetically Programmed Control of Overflow Metabolism
Biotechnology and Bioengineering, EarlyView.ABSTRACT Overflow metabolism is a highly undesirable phenomenon that occurs in virtually all cell factories. Although several schemes have been applied to avoid overflow metabolism, this problem remains far from being solved. In this study, a genetic sensor for detecting overflow metabolism was designed, and its substrate specificity and reversibility ...
Lærke M. Jensen +3 more
wiley +1 more source
mSystems, 2020 Ammonia-oxidizing microorganisms perform the first step of nitrification, the oxidation of ammonia to nitrite. The bacterium Nitrosomonas europaea is the best-characterized ammonia oxidizer to date. Exposure to hypoxic conditions has a profound effect on
Christopher J. Sedlacek +10 more
doaj +1 more source
Biotechnology and Bioengineering, EarlyView.Conventional bulk media are often unsuitable for single‐cell cultivation and analysis because they provide excess nutrients or lack essential components. Redesigning the medium allows for controlled, defined growth, enabling the development of a robust minimal medium that supports quantitative and reproducible single‐cell analysis across different ...
Judith Wegmann +5 more
wiley +1 more source
Thermodynamic Evaluation of Dual Substrate Growth
Biotechnology and Bioengineering, EarlyView.ABSTRACT Various C₁–C₂ compounds are increasingly available through electrochemical reduction of CO2. Although not always suitable as a sole substrate, these compounds can supplement a primary substrate like glucose to enhance microbial growth. Yet, the mechanisms underlying the effects of dual substrate consumption on growth rate and growth yield ...
Marit A. Verheijen +3 more
wiley +1 more source