The effects of microbial iron reduction and oxidation on the immobilization and mobilization of copper were investigated in a high concentration of sulfate with synthesized Fe(III) minerals and red earth soils rich in amorphous Fe (hydr)oxides. Batch microcosm experiments showed that red earth soil inoculated with subsurface sediments had a faster Fe(III) bioreduction rate than pure amorphous F...

The early chemical changes in continuously contracting muscle have been definitely shown to involve anaerobic reactions. The formation of lactic acid from glycogen, the hydrolysis of phosphocreatine, the hydrolysis of adenosinetriphosphate, and the formation of hexosemonophosphate liberate energy which may be used for muscular contraction. Most of the theories of muscular contraction postulate ...

This contribution deals with a novel anaerobic-anoxic reactor for biological nutrient removal (BNR) from wastewater, termed AnoxAn. In the AnoxAn reactor, the anaerobic and anoxic zones for phosphate removal and denitrification are integrated in a single continuous upflow sludge blanket reactor, aiming at high compactness and efficiency. Its application is envisaged in those cases where retrofi...

In our laboratory, culture of sputum was extremely useful in diagnosing the etiology of pneumococcal pneumonia. Of 31 consecutive patients with bacteremic pneumococcal pneumonia, 29 (94%) had Streptococcus pneumoniae cultured from sputum. Recovery of pneumococci in culture was enhanced by anaerobic incubation as well as by a plate bile test and an optochin disk on a primary blood agar plate.

Resistance in Gram-negative pathogens is an increasing concern, with carbapenems often appearing as the only acceptable treatment option in serious infections. Reviving older compounds that have fallen into disuse may help to alleviate this burden. Temocillin (6-alpha-methoxy-ticarcillin) is resistant to most if not all classical and extended-spectrum beta-lactamases and to AmpC enzymes. It is ...

Here, we report the genome sequence for Leucobacter sp. strain G161 due to its distinct and effective hexavalent chromium reduction under aerobic growth conditions, followed by facultative anaerobic incubation. The draft genome sequence of Leucobacter sp. G161 comprises 3,554,188 bp, with an average G+C content of 65.3%, exhibiting 3,341 protein-coding genes and 55 predicted RNA genes.

5. Anaerobic incubation caused an inhibition of synthesis only in the presence of oxaloacetate; no inhibition was observed anaerobically in the presence of a-oxoglutarate plus malonate. 6. Hg2+ and arsenate almost completely abolished fatty acid synthesis; cyanide and 2:4-dinitrophenol caused a moderate (30-70%) inhibition, while azide and fluoride were without effect. 7. The implication of the...

Rhodopseudomonas acidophila KU001 was isolated from leather industry effluents and the effect of different cultural conditions on hydrogen production was studied. Anaerobic light induced more hydrogen production than anaerobic dark conditions. Growing cells produced more amounts of hydrogen between 96 and 144 h of incubation. Resting and growing cells preferred a pH of 6.0 ± 0.24 for hydrogen p...

Addition of physiological concentrations of 20 l-amino acids to the incubation medium facilitates the uptake of copper by liver slices. This effect can be observed in a wide range of initial concentrations of copper in the medium, including the low physiological concentrations. The uptake of copper was not influenced by the addition of sodium lactate or d-glucose to the incubation media. The fa...

The abundance of growth and size of colonies of 10 isolates of Eikenella corrodens were studied using 15 commonly available media in aerobic, 5% CO2, and anaerobic atmospheres of incubation. Chocolate agar was the best medium for overall growth in all three atmospheres. Growth on Mueller-Hinton agar supplemented with 5% blood and on Brucella agar supplemented with 5% blood was equivalent to tha...