搜索结果: 91-105 共查到“理学 Bacteria”相关记录183条 . 查询时间(0.062 秒)
Analysis of a mathematical model of syntrophic bacteria in a chemostat
Syntrophic relationship Mathematical modelling Coexistence Asymptotic stability Anaerobic digestion
2011/9/23
Abstract: A mathematical model involving a syntrophic relationship between two populations of bacteria in a continuous culture is proposed. A detailed qualitative analysis is carried out. The local an...
Growth of a population of bacteria in a dynamical hostile environment
Growth population bacteria dynamical hostile environment
2010/11/15
We study the growth of a population of bacteria in a dynamical hostile environment corresponding to the immune system of the colonised organism. The immune cells evolve as subcritical open clusters of...
Engineering microorganisms to manufacture chemicals is not a new idea: In the 1980s, scientists figured out how to get bacteria to produce insulin, which diabetics need to control their disease. This ...
Effects of Protease-resistant Antimicrobial Substances Produced by Lactic Acid Bacteria on Rumen Methanogenesis
Methane Production Lactic Acid Bacteria In vitro Fermentation
2016/5/4
Effects of protease-resistant antimicrobial substances (PRA) produced by Lactobacillus plantarum and Leuconostoc citreum on rumen methanogenesis were examined using the in vitro continuous methane qua...
The relative importance of heterotrophic bacteria to pelagic ecosystem dynamics varies with reservoir trophic state
heterotrophic bacteria pelagic ecosystem dynamics varies reservoir trophic state
2014/4/17
We tested the hypothesis that nutrient sequestration and carbon flow through heterotrophic bacteria is relatively highest in oligotrophic systems and decreases with trophic state in 17 reservoirs in T...
Biogeneration of chromophoric dissolved organic matter by bacteria and krill in the Southern Ocean
chromophoric dissolved organic matter bacteria krill the Southern Ocean
2014/4/17
Chromophoric dissolved organic matter (CDOM), the optically active fraction of dissolved organic matter, is primarily generated by pelagic organisms in the open ocean. In this study,we experimentally ...
Variations in the optical properties of a particle suspension associated with viral infection of marine bacteria
Variations particle suspension associated marine bacteria
2014/4/17
A laboratory experiment was conducted to examine the temporal dynamics of the particle size distribution
(PSD) and associated optical variability caused by viral infection of marine heterotrophic bac...
Spatiotemporal distribution and activity patterns of bacteria from three phylogenetic groups in an oligomesotrophic lake
Spatiotemporal distribution an oligomesotrophic lake
2014/4/16
We explored the seasonal and vertical patterns of cell numbers, biomass, and amino acid incorporation of three
major phylogenetic groups of the bacterioplankton in an oligomesotrophic alpine lake. Th...
Effect of viruses and protists on bacteria in eddies of the Canary Current region (subtropical northeast Atlantic)
Effect of viruses Canary Current region
2014/4/16
The effect of oceanic eddies on microbial processes, with emphasis on bacterial losses due to protists and
phages, was examined in the Canary Current region (subtropical northeast Atlantic) through t...
The interplay between bacterial community composition and the environment determining function of inland water bacteria
bacterial community composition the environment determining function inland water bacteria
2014/4/16
We hypothesized that habitats differing in water flow regime would differ in bacterial function either because of differences in the local environment, in bacterial community composition (BCC), or in ...
Nutritional importance of benthic bacteria for deep-sea nematodes from the Arctic ice margin: Results of an isotope tracer experiment
Nutritional importance benthic bacteria deep-sea nematodes the Arctic ice margin Results an isotope
2014/4/16
A stable isotope (13C)-labeling experiment was performed to quantify the importance of bacterial carbon as a food source for an Arctic deep-sea nematode community. Bacterial functional groups were iso...
Molecular evidence for anaerobic ammonium–oxidizing (anammox) bacteria in continental shelf and slope sediments off northwest Africa
Molecular evidence anaerobic ammonium–oxidizing bacteria in continental shelf slope sediments off northwest Africa
2014/4/16
The presence and abundance of anaerobic ammonium–oxidizing (anammox) bacteria was investigated in continental shelf and slope sediments (300–3000 m water depth) off northwest Africa in a combined appr...
It’s well established that critical human body functions, including sleep, hormone production and regulation of body temperature, follow a circadian (24-hour) cycle. These genetically programmed patte...
Biologists Discover How Biological Clock Controls Cell Division in Bacteria（图）
Biologists Biological Clock Cell Division Bacteria
2010/3/4
A team of biologists has unraveled the biochemistry of how bacteria so precisely time cell division, a key element in understanding how all organisms from bacteria to humans use their biological clock...
Rapid Determination of Nanotoxicity Using Luminous Bacteria
Nanotoxicity Luminous Bacteria
2010/9/17
A new luminescence-based toxicity test using luminous bacteria as a reporting agent has been developed to determine EC50 of different nanomaterials, such as gold nanoparticles and carbon nanotubes on ...