Uses of Yeast In nature, yeasts are found abundantly in sugar-rich environments, like the nectars of flowers. Commercially it is the ability of yeasts to convert sugars into alcohol and carbon dioxide through fermentation, a type of anaerobic respiration, which is especially important. Yeasts are...
The transition from anaerobic to aerobic photosynthesis 2.7 billion years ago was accompanied by profound changes on the acceptor side of the ancestral Type I reaction center. At the advent of oxygen evolution, the mobile bacterial dicluster ferredoxin, which initially served to transfer electrons ...
Streptococci are Gram-positive, catalase-negative, facultatively anaerobic, coccoid bacteria less than 2 μm in diameter that grow in characteristic chains in broth culture. Streptococci are nutritionally fastidious, and growth in complex media is enhanced by the addition of blood or serum. Phenotypic...
rodentium to permit its more rapid growth while potentially restraining competition with anaerobic constituents of the microbiota that are impaired by increased oxygen. These studies suggest that A/E lesion formation represents an evolutionary adaptation by C. rodentium to compete with the endogenous ...
The gut microbiome is an important determinant in various diseases. Here we perform a cross-sectional study of Japanese adults and identify the Blautia genus, especially B. wexlerae, as a commensal bacterium that is inversely correlated with obesity and
which also regulate lipoylation, the highly conserved lysine posttranslational modification. pdh complex catalyzes oxidation of pyruvate and its conversion into acetyl-coa prior to its utilization in tca cycle; thus, connecting the anaerobic process of glycolysis and the oxidative phosphorylation. during ...
Similarly, the expression of other energy metabolism genes was less decreased, as was case for nuoK, which is part of complex I of the respiratory chain, or arcDAB of arginine fermentation, which is one of the major pathways of anaerobic energy metabolism in P. aeruginosa. In conclusion, ...
1. A control method in an intermittent aeration activated sludge process for eliminating nitrogen and phosphorus from sewage in which the sewage is input to an aeration tank where it is subjected to an aerobic condition under aeration and to an anaerobic condition under agitation with the aeration...
(H2S) through anaerobic respiration or the sulfur-containing amino acids cysteine and methionine through assimilation into biomass. Previous studies have shown that high concentrations of H2S from sulfate-reducing bacteria in gut microbiota can adversely affect the bowel environment by increasing toxicity ...
sediments of salt marshes are characterized with high concentrations of sulfides and ammonium originating from the high rates of anaerobic reduction5,23, which can affect plant root respiration29. Research has shown that poor water drainage of marsh sediments can be a critical factor limiting plant ...