Oxygen consumption bacterial

UV fluorescence, UV photometry, electromagnetic absorption, optical scattering and reflection, capacitive, vapor purging, and VOC gas sensor Bacterial biosensor, biomass oxygen consumption... 

Bacterial oxygen consumption, algal fluorescence, microbial respiration inhibition... 

Top the equation R = 1.92 ETS — 0.99, where R is the oxygen-consumption rate, describes the samples taken from the Georges Bank-Gulf of Maine cruise on the R.V. Eastward in July 1980. Bottom the equation R = 1.29 ETS + 4.71 describes the ETS dependence of oxygen consumption of the bacterium, P. perfectomarinus. The differences in the equations may reflect the differences of the analysis of bacterial and phytoplankton ETS. In bacteria the ETS is housed in the cell mall, so crude homogenates must be used. In phytoplankton the ETS is housed in the mitochondria thus, partially purified homogenates free of cell walls and nuclei are used. (Reproduced with permission from Ref. 67 and 75.)... 

Facultative bacteria may provide an environment conducive to the growth of anaerobic bacteria. Although many bacteria isolated in mixed infections are nonpathogenic by themselves, their presence may be essential for the pathogenicity of the bacterial mixture. The role of facultative bacteria in mixed infections can include (1) promotion of an appropriate environment for anaerobic growth through oxygen consumption, (2) production of nutrients necessary for anaerobes, and (3) production of extracellular enzymes that promote tissue invasion by anaerobes. 

Licochalcone A and C have been shown to possess activity in vitro against Gram-positive bacteria (Haraguchi et al., 1998). The mechanism of this effect is hypothesized to be inhibition of oxygen consumption and NADH oxidation in susceptible bacterial cells through inhibition of mitochondrial NADH-cytochrome c reductase. 

Another interesting application of the Hb02 method is the determination of ethanol concentration in the presence of NAD+, alcohol dehydrogenase and bacterial NADH-oxidase as an indicator system (Figure 11). Since the standard curve is expressed in terms of the rate of oxygen consumption, the interval of linearity as well as the slope depend on the... 

In bacterially regulated (nonilluminated, nonphotosynthetic) organic sediments, rates of bacterial metabolism and oxygen consumption increased with increasing temperatures, particularly above 17°C (Kamp-Nielsen, 1975). Above this temperature, release of phosphorus to the overlying... 

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