نتایج جستجو برای: aerobe
تعداد نتایج: 192 فیلتر نتایج به سال:
Microbiologically Influenced Corrosion (MIC) is a serious problem in many industries because it causes huge economic losses. Due to its excellent resistance to chemical corrosion, 2707 hyper duplex stainless steel (2707 HDSS) has been used in the marine environment. However, its resistance to MIC was not experimentally proven. In this study, the MIC behavior of 2707 HDSS caused by the marine ae...
Background Alcaligenes faecalis (A.faecalis) is a Gramnegative, rod-shaped, motile, oxidase, catalase and citrate positive obligate aerobe that is commonly found in the environment. A. faecalis is the most frequently isolated member of family Alcaligenaceae in the clinical laboratory. Infections caused by A. faecalis are opportunistic and are acquired from moist items such as nebulizers, respir...
Mitochondrial diseases, which altogether represent not so rare diseases, can be due to mutations either in the nuclear or mitochondrial genomes. Several model organisms or cell lines are usually employed to understand the mechanisms underlying diseases, yeast being one of them. However, in the case of mutations within the mitochondrial genome, yeast is a major model because it is a facultative ...
Azotobacter vinelandii is a soil bacterium related to the Pseudomonas genus that fixes nitrogen under aerobic conditions while simultaneously protecting nitrogenase from oxygen damage. In response to carbon availability, this organism undergoes a simple differentiation process to form cysts that are resistant to drought and other physical and chemical agents. Here we report the complete genome ...
Abstract Das aktive Zentrum der partikulären Methan‐Monooxygenase (pMMO) und ihr Wirkungsmechanismus sind nicht bekannt. In den letzten Jahren trat die Cu C ‐Seite als potentielles aktives auf, jedoch fehlt es bisher an biomimetischen Studien zu dieser vom Enzym bereitgestellten Koordinationssphäre. Hier wird über Synthese eines Käfigliganden berichtet, welcher solch eine Koordinationssphäre be...
To live anaerobically an organism must generate its energy and synthesize its substance without recourse to molecular 02. Thus any discussion of the biochemistry of anaerobiosis must centre on what alternatives there are to aerobic respiration and oxygenic photosynthesis as means of biological energy conservation, and to what extent an anaerobe is constrained by being denied the facility of exp...
The pioneering studies of Hofmann and co-workers on the lipids of lactobacilli led to the discovery of a 19 carbon fatty acid containing a cyclopropane ring (l-5). This acid was characterized as cis-11 ,12-methyleneoctadecanoic acid and was given the trivial name, lactobacillic acid. A 17 carbon fatty acid from Escherichia coli was described by Dauchy and Asselineau (6) and characterized as cis...
Members of the Neisseria genus typically display the ability to carry out denitrification of nitrite to nitrous oxide as an alternative to oxygen respiration when oxygen is depleted. The key enzymes nitrite and nitric oxide reductase are found across the Neisseria genus. Within Neisseria meningitidis, however, a number of research groups have found that a significant proportion of strains lack ...
Sphaerobacter thermophilus Demharter et al. 1989 is the sole and type species of the genus Sphaerobacter, which is the type genus of the family Sphaerobacteraceae, the order Sphaerobacterales and the subclass Sphaerobacteridae. Phylogenetically, it belongs to the genomically little studied class of the Thermomicrobia in the bacterial phylum Chloroflexi. Here, the genome of strain S 6022(T) is d...
The cellulose-producing bacterium Acetobacter xylinum has been considered a strict aerobe, and it has been suggested that the function of cellulose is to hold cells in an aerobic environment. In this study, we showed that A. xylinum is capable of growing microaerophilically. Cellulose pellicles provided significant protection to A. xylinum cells from the killing effects of UV light. In experime...
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