Anaerobiosis
Gene Expression Regulation, Bacterial
Oxygen
Escherichia coli
A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.
Nitrate Reductase
Nitrates
Iron-Sulfur Proteins
Formates
Culture Media
Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.
Cyanides
Fermentation
Pyruvate Synthase
Formate Dehydrogenases
Flavoproteins that catalyze reversibly the reduction of carbon dioxide to formate. Many compounds can act as acceptors, but the only physiologically active acceptor is NAD. The enzymes are active in the fermentation of sugars and other compounds to carbon dioxide and are the key enzymes in obtaining energy when bacteria are grown on formate as the main carbon source. They have been purified from bovine blood. EC 1.2.1.2.
Chlamydomonas reinhardtii
Hydrogenase
Operon
Oxidation-Reduction
A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).
Lac Operon
2,4-Dinitrophenol
beta-Galactosidase
Hydrogen-Ion Concentration
Electron Transport
Molecular Sequence Data
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
NAD
A coenzyme composed of ribosylnicotinamide 5'-diphosphate coupled to adenosine 5'-phosphate by pyrophosphate linkage. It is found widely in nature and is involved in numerous enzymatic reactions in which it serves as an electron carrier by being alternately oxidized (NAD+) and reduced (NADH). (Dorland, 27th ed)
Transcription, Genetic
Oxygen Consumption
Salmonella typhimurium
Antimycin A
Bacillus cereus
Metabolism
Hydrogen
The first chemical element in the periodic table. It has the atomic symbol H, atomic number 1, and atomic weight [1.00784; 1.00811]. It exists, under normal conditions, as a colorless, odorless, tasteless, diatomic gas. Hydrogen ions are PROTONS. Besides the common H1 isotope, hydrogen exists as the stable isotope DEUTERIUM and the unstable, radioactive isotope TRITIUM.
Base Sequence
Carbonyl Cyanide m-Chlorophenyl Hydrazone
Genes, Regulator
Molybdenum
Succinate Dehydrogenase
Oxidoreductases
The class of all enzymes catalyzing oxidoreduction reactions. The substrate that is oxidized is regarded as a hydrogen donor. The systematic name is based on donor:acceptor oxidoreductase. The recommended name will be dehydrogenase, wherever this is possible; as an alternative, reductase can be used. Oxidase is only used in cases where O2 is the acceptor. (Enzyme Nomenclature, 1992, p9)
Bioreactors
Tools or devices for generating products using the synthetic or chemical conversion capacity of a biological system. They can be classical fermentors, cell culture perfusion systems, or enzyme bioreactors. For production of proteins or enzymes, recombinant microorganisms such as bacteria, mammalian cells, or insect or plant cells are usually chosen.
Mutation
Glucose
Photosynthesis
The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide using energy obtained from light rather than from the oxidation of chemical compounds. Photosynthesis comprises two separate processes: the light reactions and the dark reactions. In higher plants; GREEN ALGAE; and CYANOBACTERIA; NADPH and ATP formed by the light reactions drive the dark reactions which result in the fixation of carbon dioxide. (from Oxford Dictionary of Biochemistry and Molecular Biology, 2001)
Promoter Regions, Genetic
Gene Expression Regulation, Enzymologic
Gene Expression Regulation, Fungal
Amino Acid Sequence
Adaptation, Physiological
Biomass
Glycolysis
A metabolic process that converts GLUCOSE into two molecules of PYRUVIC ACID through a series of enzymatic reactions. Energy generated by this process is conserved in two molecules of ATP. Glycolysis is the universal catabolic pathway for glucose, free glucose, or glucose derived from complex CARBOHYDRATES, such as GLYCOGEN and STARCH.
Acetyltransferases
Ethanol
A clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in ALCOHOLIC BEVERAGES.
Energy Metabolism
Cloning, Molecular
Carbon Dioxide
Gene Deletion
Saccharomyces cerevisiae
Biological Transport, Active
Spectrophotometry
Pseudomonas aeruginosa
Transcription Factors
Spectrophotometry, Infrared
Mitochondria
Semiautonomous, self-reproducing organelles that occur in the cytoplasm of all cells of most, but not all, eukaryotes. Each mitochondrion is surrounded by a double limiting membrane. The inner membrane is highly invaginated, and its projections are called cristae. Mitochondria are the sites of the reactions of oxidative phosphorylation, which result in the formation of ATP. They contain distinctive RIBOSOMES, transfer RNAs (RNA, TRANSFER); AMINO ACYL T RNA SYNTHETASES; and elongation and termination factors. Mitochondria depend upon genes within the nucleus of the cells in which they reside for many essential messenger RNAs (RNA, MESSENGER). Mitochondria are believed to have arisen from aerobic bacteria that established a symbiotic relationship with primitive protoeukaryotes. (King & Stansfield, A Dictionary of Genetics, 4th ed)
Recombinant Fusion Proteins
Restriction Mapping
Denitrifying Pseudomonas aeruginosa: some parameters of growth and active transport. (1/4712)
Optimal cell yield of Pseudomonas aeruginosa grown under denitrifying conditions was obtained with 100 mM nitrate as the terminal electron acceptor, irrespective of the medium used. Nitrite as the terminal electron acceptor supported poor denitrifying growth when concentrations of less than 15 mM, but not higher, were used, apparently owing to toxicity exerted by nitrite. Nitrite accumulated in the medium during early exponential phase when nitrate was the terminal electron acceptor and then decreased to extinction before midexponential phase. The maximal rate of glucose and gluconate transport was supported by 1 mM nitrate or nitrite as the terminal electron acceptor under anaerobic conditions. The transport rate was greater with nitrate than with nitrite as the terminal electron acceptor, but the greatest transport rate was observed under aerobic conditions with oxygen as the terminal electron acceptor. When P. aeruginosa was inoculated into a denitrifying environment, nitrate reductase was detected after 3 h of incubation, nitrite reductase was detected after another 4 h of incubation, and maximal nitrate and nitrite reductase activities peaked together during midexponential phase. The latter coincided with maximal glucose transport activity. (+info)Molecular characterization of the nitrite-reducing system of Staphylococcus carnosus. (2/4712)
Characterization of a nitrite reductase-negative Staphylococcus carnosus Tn917 mutant led to the identification of the nir operon, which encodes NirBD, the dissimilatory NADH-dependent nitrite reductase; SirA, the putative oxidase and chelatase, and SirB, the uroporphyrinogen III methylase, both of which are necessary for biosynthesis of the siroheme prosthetic group; and NirR, which revealed no convincing similarity to proteins with known functions. We suggest that NirR is essential for nir promoter activity. In the absence of NirR, a weak promoter upstream of sirA seems to drive transcription of sirA, nirB, nirD, and sirB in the stationary-growth phase. In primer extension experiments one predominant and several weaker transcription start sites were identified in the nir promoter region. Northern blot analyses indicated that anaerobiosis and nitrite are induction factors of the nir operon: cells grown aerobically with nitrite revealed small amounts of full-length transcript whereas cells grown anaerobically with or without nitrite showed large amounts of full-length transcript. Although a transcript is detectable, no nitrite reduction occurs in cells grown aerobically with nitrite, indicating an additional oxygen-controlled step at the level of translation, enzyme folding, assembly, or insertion of prosthetic groups. The nitrite-reducing activity expressed during anaerobiosis is switched off reversibly when the oxygen tension increases, most likely due to competition for electrons with the aerobic respiratory chain. Another gene, nirC, is located upstream of the nir operon. nirC encodes a putative integral membrane-spanning protein of unknown function. A nirC mutant showed no distinct phenotype. (+info)Unusual ribulose 1,5-bisphosphate carboxylase/oxygenase of anoxic Archaea. (3/4712)
The predominant pool of organic matter on earth is derived from the biological reduction and assimilation of carbon dioxide gas, catalyzed primarily by the enzyme ribulose 1,5-bisphosphate carboxylase/oxygenase (RubisCO). By virtue of its capacity to use molecular oxygen as an alternative and competing gaseous substrate, the catalytic efficiency of RubisCO and the enzyme's ability to assimilate CO2 may be severely limited, with consequent environmental and agricultural effects. Recent genomic sequencing projects, however, have identified putative RubisCO genes from anoxic Archaea. In the present study, these potential RubisCO sequences, from Methanococcus jannaschii and Archaeoglobus fulgidus, were analyzed in order to ascertain whether such sequences might encode functional proteins. We also report the isolation and properties of recombinant RubisCO using sequences obtained from the obligately anaerobic hyperthermophilic methanogen M. jannaschii. This is the first description of an archaeal RubisCO sequence; this study also represents the initial characterization of a RubisCO molecule that has evolved in the absence of molecular oxygen. The enzyme was shown to be a homodimer whose deduced sequence, along with other recently obtained archaeal RubisCO sequences, differs substantially from those of known RubisCO molecules. The recombinant M. jannaschii enzyme has a somewhat low, but reasonable kcat, however, unlike previously isolated RubisCO molecules, this enzyme is very oxygen sensitive yet it is stable to hyperthermal temperatures and catalyzes the formation of the expected carboxylation product. Despite inhibition by oxygen, this unusual RubisCO still catalyzes a weak yet demonstrable oxygenase activity, with perhaps the lowest capacity for CO2/O2 discrimination ever encountered for any RubisCO. (+info)Metal-catalyzed oxidation of phenylalanine-sensitive 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase from Escherichia coli: inactivation and destabilization by oxidation of active-site cysteines. (4/4712)
The in vitro instability of the phenylalanine-sensitive 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase [DAHPS(Phe)] from Escherichia coli has been found to be due to a metal-catalyzed oxidation mechanism. DAHPS(Phe) is one of three differentially feedback-regulated isoforms of the enzyme which catalyzes the first step of aromatic biosynthesis, the formation of DAHP from phosphoenolpyruvate and D-erythrose-4-phosphate. The activity of the apoenzyme decayed exponentially, with a half-life of about 1 day at room temperature, and the heterotetramer slowly dissociated to the monomeric state. The enzyme was stabilized by the presence of phosphoenolpyruvate or EDTA, indicating that in the absence of substrate, a trace metal(s) was the inactivating agent. Cu2+ and Fe2+, but none of the other divalent metals that activate the enzyme, greatly accelerated the rate of inactivation and subunit dissociation. Both anaerobiosis and the addition of catalase significantly reduced Cu2+-catalyzed inactivation. In the spontaneously inactivated enzyme, there was a net loss of two of the seven thiols per subunit; this value increased with increasing concentrations of added Cu2+. Dithiothreitol completely restored the enzymatic activity and the two lost thiols in the spontaneously inactivated enzyme but was only partially effective in reactivation of the Cu2+-inactivated enzyme. Mutant enzymes with conservative replacements at either of the two active-site cysteines, Cys61 or Cys328, were insensitive to the metal attack. Peptide mapping of the Cu2+-inactivated enzyme revealed a disulfide linkage between these two cysteine residues. All results indicate that DAHPS(Phe) is a metal-catalyzed oxidation system wherein bound substrate protects active-site residues from oxidative attack catalyzed by bound redox metal cofactor. A mechanism of inactivation of DAHPS is proposed that features a metal redox cycle that requires the sequential oxidation of its two active-site cysteines. (+info)Anaerobic oxidation of o-xylene, m-xylene, and homologous alkylbenzenes by new types of sulfate-reducing bacteria. (5/4712)
Various alkylbenzenes were depleted during growth of an anaerobic, sulfate-reducing enrichment culture with crude oil as the only source of organic substrates. From this culture, two new types of mesophilic, rod-shaped sulfate-reducing bacteria, strains oXyS1 and mXyS1, were isolated with o-xylene and m-xylene, respectively, as organic substrates. Sequence analyses of 16S rRNA genes revealed that the isolates affiliated with known completely oxidizing sulfate-reducing bacteria of the delta subclass of the class Proteobacteria. Strain oXyS1 showed the highest similarities to Desulfobacterium cetonicum and Desulfosarcina variabilis (similarity values, 98.4 and 98.7%, respectively). Strain mXyS1 was less closely related to known species, the closest relative being Desulfococcus multivorans (similarity value, 86.9%). Complete mineralization of o-xylene and m-xylene was demonstrated in quantitative growth experiments. Strain oXyS1 was able to utilize toluene, o-ethyltoluene, benzoate, and o-methylbenzoate in addition to o-xylene. Strain mXyS1 oxidized toluene, m-ethyltoluene, m-isoproyltoluene, benzoate, and m-methylbenzoate in addition to m-xylene. Strain oXyS1 did not utilize m-alkyltoluenes, whereas strain mXyS1 did not utilize o-alkyltoluenes. Like the enrichment culture, both isolates grew anaerobically on crude oil with concomitant reduction of sulfate to sulfide. (+info)Immobilization patterns and dynamics of acetate-utilizing methanogens immobilized in sterile granular sludge in upflow anaerobic sludge blanket reactors. (6/4712)
Sterile granular sludge was inoculated with either Methanosarcina mazeii S-6, Methanosaeta concilii GP-6, or both species in acetate-fed upflow anaerobic sludge blanket (UASB) reactors to investigate the immobilization patterns and dynamics of aceticlastic methanogens in granular sludge. After several months of reactor operation, the methanogens were immobilized, either separately or together. The fastest immobilization was observed in the reactor containing M. mazeii S-6. The highest effluent concentration of acetate was observed in the reactor with only M. mazeii S-6 immobilized, while the lowest effluent concentration of acetate was observed in the reactor where both types of methanogens were immobilized together. No changes were observed in the kinetic parameters (Ks and mumax) of immobilized M. concilii GP-6 or M. mazeii S-6 compared with suspended cultures, indicating that immobilization does not affect the growth kinetics of these methanogens. An enzyme-linked immunosorbent assay using polyclonal antibodies against either M. concilii GP-6 or M. mazeii S-6 showed significant variations in the two methanogenic populations in the different reactors. Polyclonal antibodies were further used to study the spatial distribution of the two methanogens. M. concilii GP-6 was immobilized only on existing support material without any specific pattern. M. mazeii S-6, however, showed a different immobilization pattern: large clumps were formed when the concentration of acetate was high, but where the acetate concentration was low this strain was immobilized on support material as single cells or small clumps. The data clearly show that the two aceticlastic methanogens immobilize differently in UASB systems, depending on the conditions found throughout the UASB reactor. (+info)Anaerobic degradation of phthalate isomers by methanogenic consortia. (7/4712)
Three methanogenic enrichment cultures, grown on ortho-phthalate, iso-phthalate, or terephthalate were obtained from digested sewage sludge or methanogenic granular sludge. Cultures grown on one of the phthalate isomers were not capable of degrading the other phthalate isomers. All three cultures had the ability to degrade benzoate. Maximum specific growth rates (microseconds max) and biomass yields (YXtotS) of the mixed cultures were determined by using both the phthalate isomers and benzoate as substrates. Comparable values for these parameters were found for all three cultures. Values for microseconds max and YXtotS were higher for growth on benzoate compared to the phthalate isomers. Based on measured and estimated values for the microbial yield of the methanogens in the mixed culture, specific yields for the phthalate and benzoate fermenting organisms were calculated. A kinetic model, involving three microbial species, was developed to predict intermediate acetate and hydrogen accumulation and the final production of methane. Values for the ratio of the concentrations of methanogenic organisms, versus the phthalate isomer and benzoate fermenting organisms, and apparent half-saturation constants (KS) for the methanogens were calculated. By using this combination of measured and estimated parameter values, a reasonable description of intermediate accumulation and methane formation was obtained, with the initial concentration of phthalate fermenting organisms being the only variable. The energetic efficiency for growth of the fermenting organisms on the phthalate isomers was calculated to be significantly smaller than for growth on benzoate. (+info)The role of benzoate in anaerobic degradation of terephthalate. (8/4712)
The effects of acetate, benzoate, and periods without substrate on the anaerobic degradation of terephthalate (1, 4-benzene-dicarboxylate) by a syntrophic methanogenic culture were studied. The culture had been enriched on terephthalate and was capable of benzoate degradation without a lag phase. When incubated with a mixture of benzoate and terephthalate, subsequent degradation with preference for benzoate was observed. Both benzoate and acetate inhibited the anaerobic degradation of terephthalate. The observed inhibition is partially irreversible, resulting in a decrease (or even a complete loss) of the terephthalate-degrading activity after complete degradation of benzoate or acetate. Irreversible inhibition was characteristic for terephthalate degradation only because the inhibition of benzoate degradation by acetate could well be described by reversible noncompetitive product inhibition. Terephthalate degradation was furthermore irreversibly inhibited by periods without substrate of only a few hours. The inhibition of terephthalate degradation due to periods without substrate could be overcome through incubation of the culture with a mixture of benzoate and terephthalate. In this case no influence of a period without substrate was observed. Based on these observations it is postulated that decarboxylation of terephthalate, resulting in the formation of benzoate, is strictly dependent on the concomitant fermentation of benzoate. In the presence of higher concentrations of benzoate, however, benzoate is the favored substrate over terephthalate, and the culture loses its ability to degrade terephthalate. In order to overcome the inhibition of terephthalate degradation by benzoate and acetate, a two-stage reactor system is suggested for the treatment of wastewater generated during terephthalic acid production. (+info)
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in anaerobic respiration in plants
Chiropractic Sports Institutes TIDBITS: 2013
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Anaerobic cultures
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Monera6 - the cell membrane and move in a back and forth motion Facultative anaerobes Organisms that do not require oxygen to...
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Stepwise metabolic adaption from pure metabolization to balanced anaerobic growth on xylose explored for recombinant...
end product of anaerobic respiration
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process of anaerobic respiration
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Bacteria
Ślesak I, Kula M, Ślesak H, Miszalski Z, Strzałka K (August 2019). "How to define obligatory anaerobiosis? An evolutionary view ...
Beetle
doi:10.1674/0003-0031(1998)140[0027:SOIAAB]2.0.CO;2. Conradi-Larsen, Else-Margrete; Sømme, Lauritz (1973). "Anaerobiosis in the ...
Alison Mary Smith
Smith, Alison Mary (1978). Effect of anaerobiosis on plant metabolism (PhD thesis). University of Cambridge. OCLC 500566304. ... was educated at the University of Cambridge where she was awarded a PhD in 1978 for research into the effect of anaerobiosis on ...
Geomyces pannorum
"Growth of the fungus Geomyces pannorum under anaerobiosis". Microbiology. 79 (6): 845-848. doi:10.1134/s0026261710060184. ...
Ethanol
... is also produced during the germination of many plants as a result of natural anaerobiosis. Ethanol has been detected ... Leblová S, Sinecká E, Vaníčková V (1974). "Pyruvate metabolism in germinating seeds during natural anaerobiosis". Biologia ...
Gas vesicle
Hechler T, Pfeifer F (January 2009). "Anaerobiosis inhibits gas vesicle formation in halophilic Archaea". Molecular ...
Vacuole
Hechler, Torsten; Pfeifer, Felicitas (2009). "Anaerobiosis inhibits gas vesicle formation in halophilic Archaea". Molecular ...
Raymond Lindeman
Lindeman, RL (1942). "Experimental simulation of winter anaerobiosis in a senescent lake". Ecology. 23 (1): 1-13. Lindeman, RL ... Lindeman, Raymond L. (January 1942). "Experimental Simulation of Winter Anaerobiosis in a Senescent Lake". Ecology. 23 (1): 1- ...
Pichia anomala
ethanol under anaerobiosis acetate under respiratory and respirofermentative growth. ethyl acetate from glucose under oxygen ...
Streptococcus agalactiae
Vagino-rectal culture 18h incubation 36°C anaerobiosis. Streptococcus agalactiae colonies in chromogenic medium (ChromID CPS ...
Tuctoria
"Anaerobiosis as a stimulus to germination in two vernal pool grasses" (PDF). American Journal of Botany. 75 (7): 1086-1089. doi ... online pdf here: https://www.docdroid.net/LAenrBq/anaerobiosis-as-a-stimulus-to-germination-in-two-vernal-pool-grasses.pdf) ...
Ventilatory threshold
One's threshold is said to reflect levels of anaerobiosis and lactate accumulation. As the intensity level of the activity ...
Methanogen
2014). "Microbial Ecology of Anaerobic Digesters: The Key Players of Anaerobiosis" ScientificWorldJournal. 3852369 (1). doi: ...
Parablepharismea
"Genomics of New Ciliate Lineages Provides Insight into the Evolution of Obligate Anaerobiosis". Current Biology. 30 (11): 2037- ...
FNR regulon
In anaerobiosis an additional completely Fnr-dependent transcript starting at Pa, is present. Both of these genes then ... coli Active FNR protein activates and represses target genes in response to anaerobiosis. It also represses the aerobic genes, ...
Pho regulon
These specific nutrients being present or in low concentrations, anaerobiosis, and host-produced factors. Wanner, B. L.; Chang ...
McIntosh and Filde's anaerobic jar
This method of anaerobiosis as others is used to culture bacteria which die or fail to grow in presence of oxygen (anaerobes). ... A growth free culture plate at the end of the process indicates a successful anaerobiosis. However, P. aeruginosa possesses a ...
Microbial cooperation
This important link between quorum sensing and anaerobiosis has a significant impact on production of virulence factors of this ... Recent studies have discovered that anaerobiosis can significantly impact the major regulatory circuit of quorum sensing. ...
Fumarate reductase
2007). "Role in anaerobiosis of the isoenzymes for Saccharomyces cerevisiae fumarate reductase encoded by OSM1 and FRDS1". ...
Non-fermenter
This does not necessarily exclude that species can catabolize other sugars or have anaerobiosis like fermenting bacteria. The ...
Hypoxia in fish
... during anaerobiosis". Thermochimica Acta. 373: 23-30. doi:10.1016/S0040-6031(01)00463-4. Regan, MD; Gill, IS; Richards, JG ( ... during anaerobiosis". Thermochimica Acta. 373: 23-30. doi:10.1016/S0040-6031(01)00463-4. Hochachka, P. (1986), "Defense ...
Halomonas nitroreducens
... that is able to respire on nitrate and nitrite in anaerobiosis. Halomonas nitroreducens's closest relatives are Halomonas ...
Microbiologically induced calcite precipitation
Non-methylotrophic methanogegenesis is carried out by methanogenic archaebacteria, which use CO2 and H2 in anaerobiosis to give ...
Cysteine transaminase
... and pyridoxal phosphate in the enzymatic formation of hydrogen sulfide from cysteine by the rat liver under anaerobiosis.]". ...
Moerman Therapy
Moerman referred to the theory of Nobel Prize winner Otto Warburg, which is anaerobiosis as a first cause of cancerous cells. ...
Lactobacillus
Smalla, Pamela LC; Watermanb, Scott R (June 1998). "Acid stress, anaerobiosis and gadCB: lessons from Lactococcus lactis and ...
Originea cancerului
Ivanovic Z. and Vlaski-Lafarge M.: Anaerobiosis and stemness, an evolutionary paradigm. p. 190-191.. ...
எத்தனால் - தமிழ் விக்கிப்பீடியா
Leblová, Sylva; Sinecká, Eva; Vaníčková, Věra (1974). "Pyruvate metabolism in germinating seeds during natural anaerobiosis". ...
Warburg hypothesis
In this speech, Warburg presented additional evidence supporting his theory that the elevated anaerobiosis seen in cancer cells ...
Proteins induced by anaerobiosis in Escherichia coli. | Journal of Bacteriology
Proteins induced by anaerobiosis in Escherichia coli. Message Subject (Your Name) has forwarded a page to you from Journal of ... Proteins induced by anaerobiosis in Escherichia coli.. M W Smith, F C Neidhardt ... at significant levels during aerobic growth and appeared to undergo metabolic regulation by stimuli other than anaerobiosis. ...
Anaerobiosis and a Theory of Growth Line Formation | Science
Microstructural growth increments within the shells of numerous Recent and fossil molluscs are interpreted as reflections of alternating periods of shell deposition and dissolution, occurring during aerobic and anaerobic respiration, respectively. The acidic end products of anaerobic metabolism are neutralized by calcium carbonate from the shell, leaving a relatively insoluble organic residue at the mantle-shell interface. With the return of oxygenated conditions and resumption of aerobic respiration, this organic material is reincorporated within the shell. Inasmuch as metabolic changes are often synchronized with lunar or solar cycles (or both), we are led to the nearly paradoxical conclusion that, as a result of shell destructive processes, a relatively complete and detailed record of both short- and long-term growth is often preserved within the molluscan exoskeleton. Analyses of relationships between ambient oxygen concentrations and shell structural types may eventually prove useful, in ...
Anaerobiosis in the segmenting eggs of Bufo arenarum | Development
In the last few years our interest has been devoted to the energy metabolism of the eggs of the common toad Bufo arenarum Hensel which, like some other amphibian eggs, can cleave at a normal rate in the absence of oxygen or in the presence of cyanide (Barbieri & Legname, 1957). Under anaerobic conditions a rapid accumulation of lactic acid gives evidence of an intense glycolytic activity, which is inhibited when the eggs are returned to oxygen (Pasteur effect) (Barbieri & Salomón, 1963). Furthermore, an increase in oxygen uptake during the first 2 h of recovery has been observed (payment of the oxygen debt) (Legname, 1966). Taking into account the low value of the respiratory quotient (r.q. = 0·5-0·7) during this period it can be assumed that most of the oxygen is not involved in the oxidation of lactate (Legname, 1966).. ...
Anaerobiosis and fungi in the germination of two vernal pool grasses
9780128005408: Anaerobiosis and Stemness: An Evolutionary Paradigm for Therapeutic Applications - AbeBooks - Zoran Ivanovic;...
Anaerobiosis and Stemness: An Evolutionary Paradigm for Therapeutic Applications (9780128005408) by Zoran Ivanovic; Marija ... Anaerobiosis and Stemness: An evolutionary paradigm provides a context for understanding the many complexities and evolutionary ... Anaerobiosis and Stemness is an important resource for stem cell and developmental biologists alike, as well as oncologists, ... 1. Anaerobiosis and Stemness: An Evolutionary Paradigm for Therapeutic Applications (Hardback) Zoran Ivanovic, Marija Vlaski- ...
Effect of anaerobiosis on cysteine protease regulation during the embryonic-larval transition in | Journal of Experimental...
Effect of anaerobiosis on cysteine protease regulation during the embryonic-larval transition in ... Effect of anaerobiosis on cysteine protease regulation during the embryonic-larval transition in ... Effect of anaerobiosis on cysteine protease regulation during the embryonic-larval transition in ... Effect of anaerobiosis on cysteine protease regulation during the embryonic-larval transition in ...
Subject: Anaerobic infections and Anaerobiosis | Search Results | Academic Commons
You searched for: Subject Anaerobic infections Remove constraint Subject: Anaerobic infections Subject Anaerobiosis Remove ... 1. Affect of anaerobiosis on the antibiotic susceptibility of H. influenzae Smith, Hannah; Nelson, Kevin; Calaunan, Edison; ... Effect of antibiotics onAnaerobiosisMedicineMicrobiology. ...
Glycogen Degradation and the Accumulation of Compounds During Anaerobiosis in the Fresh Water Snail Lymnaea Stagnalis in:...
Plant mitochondrial function during anaerobiosis : Annals of Botany - oi
RNA-seq analysis of the influence of anaerobiosis and FNR on Shigella flexneri | BMC Genomics | Full Text
Anaerobiosis promotes survival and adaption strategies of Shigella, while modulating virulence plasmid genes involved in T3SS- ... These genes, located on the large Shigella virulence plasmid, were down regulated in anaerobiosis in an FNR-dependent manner. ... To define the influence of anaerobiosis on the virulence of Shigella, we performed deep RNA sequencing to identify ... transcriptomic differences that are induced by anaerobiosis and modulated by the anaerobic Fumarate and Nitrate Reduction ...
Anaerobiosis and acid-base status in marine invertebrates: effect of environmental hypoxia on extracellular and intracellular...
International Society for Plant Anaerobiosis
HKU Scholars Hub: Restoration of GABA production machinery in Lactobacillus brevis by accessible carbohydrates, anaerobiosis...
Article: Restoration of GABA production machinery in Lactobacillus brevis by accessible carbohydrates, anaerobiosis and early ... Restoration of GABA production machinery in Lactobacillus brevis by accessible carbohydrates, anaerobiosis and early ... Restoration of GABA production machinery in Lactobacillus brevis by accessible carbohydrates, anaerobiosis and early ...
Anaerobiosis induced virulence of Salmonella typhi. | IMSEAR
Effects of the twin-arginine translocase on secretion of virulence factors, stress response, and pathogenesis | PNAS
Light-induced photosynthetic electron transfer upon anaerobiosis in Chlamydomonas : kinetics, electron sinks and setup of a...
In this work, light-induced photosynthetic electron transfer after a prolonged dark-anaerobiosis period was studied by ... Light-induced photosynthetic electron transfer upon anaerobiosis in Chlamydomonas : kinetics, electron sinks and setup of a ... In Chlamydomonas reinhardtii, prolonged anaerobiosis leads to the expression of various fermentative pathways. Among them, ... on the basis of the fluorescence induction kinetics upon a shift from dark-anaerobiosis to light. Five mutants display the ...
Modelling soil anaerobiosis from water retention characteristics and soil respiration<...
Modelling soil anaerobiosis from water retention characteristics and soil respiration. G. Schurgers, P. Dörsch, L. Bakken, P.A ... Modelling soil anaerobiosis from water retention characteristics and soil respiration. / Schurgers, G.; Dörsch, P.; Bakken, L ... A modified pore model is proposed, in which anaerobiosis is calculated from a range of air filled pore size classes, based on ... A modified pore model is proposed, in which anaerobiosis is calculated from a range of air filled pore size classes, based on ...
The potential probiotic Lactobacillus rhamnosus CNCM I-3690 strain protects the intestinal barrier by stimulating both mucus...
Frontiers | Transcriptional Control of Dual Transporters Involved in α-Ketoglutarate Utilization Reveals Their Distinct Roles...
Global anaerobic transcriptional regulators FNR and ArcA induced c5038 expression in anaerobiosis, and C5038 played a major ... Global anaerobic transcriptional regulators FNR and ArcA induced c5038 expression in anaerobiosis, and C5038 played a major ... FIGURE 2. c5038 transcription was induced whereas kgtP repressed in anaerobiosis. (A) Promoter region of kgtP. (B) Promoter ... Anaerobiosis Induced c5038 but Repressed kgtP Expression. Given that kgtP and c5038 contributed differentially to growth on KG ...
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Photoproduction of ammonia by immobilized heterocystic cyanobacteria. Effect of nitrite and anaerobiosis - Semantic Scholar
When reactors were placed in anaerobiosis by N2 bubbling, ammonia production was sustained several days and the total ammonia ... Long term effects of MSX, nitrite and anaerobiosis are discussed. ... When reactors were placed in anaerobiosis by N2 bubbling, ... Effect of nitrite and anaerobiosis}, author={Joseph Jeanfils and Roland Loudeche}, journal={Biotechnology Letters}, year={2005 ...
"Metabolic Support of Anaerobiosis in Embryos of the Annual Killifish A" by Andrew McCracken
A new approach for sustained and efficient H 2 photoproduction by Chlamydomonas reinhardtii - Energy & Environmental Science ...
3 H2 photoproduction in C. reinhardtii cultures requires anaerobiosis. (A) Accumulation of H2 under a train of light pulses ... In a low O2 environment, such pulse-illuminated algae can spontaneously establish anaerobiosis and produce H2 for up to three ... H2ase activation, however, requires strong anaerobiosis, which contradicts the suggestion of Liran and co-authors28 about the ... 3) occur only after the establishment of anaerobiosis in the culture. As shown in Fig. 3A, the photoautotrophic C. reinhardtii ...
NATO Advanced study Institute on Plant Molecular Biology; Copenhagen, Denmark; 10-19 Jun 1987. Proceedings
A Mutant in the ADH1 Gene of Chlamydomonas reinhardtii Elicits Metabolic Restructuring during Anaerobiosis | IBIS-Flora
A Mutant in the ADH1 Gene of Chlamydomonas reinhardtii Elicits Metabolic Restructuring during Anaerobiosis Publication Type:. ... Title: A Mutant in the ADH1 Gene of Chlamydomonas reinhardtii Elicits Metabolic Restructuring during Anaerobiosis. Date: Fri, ... Home » A Mutant in the ADH1 Gene of Chlamydomonas reinhardtii Elicits Metabolic Restructuring during Anaerobiosis ...
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Metabolic rate depression and biochemical adaptation in anaerobiosis,...
Metabolic rate depression and biochemical adaptation in anaerobiosis, hibernation and estivation. Publication. Publication. ... Facultative metabolic rate depression is the common adaptive strategy of anaerobiosis, hibernation, and estivation, as well as ... Storey, K, & Storey, J. (1990). Metabolic rate depression and biochemical adaptation in anaerobiosis, hibernation and ...
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Initial Hypoglycemia and Neonatal Brain Injury in Term Infants With Severe Fetal Acidemia | Articles | Pediatrics
In vitro cell growth of marine archaeal-bacterial consortia during anaerobic oxidation of methane with sulfate
Role of Saccharomyces cerevisiae oxidoreductases Bdh1p and Ara1p in the metabolism of acetoin and 2,3-butanediol
NAD-dependent butanediol dehydrogenase (Bdh1p) from Saccharomyces cerevisiae reversibly transforms acetoin to 2,3-butanediol in a stereospecific manner. Deletion of BDH1 resulted in an accumulation of acetoin and a diminution of 2,3-butanediol in two S. cerevisiae strains under two different growth …
Anaerobic4
- Global anaerobic transcriptional regulators Fumarate and nitrate reduction (FNR) and ArcA induced c5038 expression in anaerobiosis, and C5038 played a major role in anaerobic growth on KG. (frontiersin.org)
- The classical theory, since defined as the cardiovascular/anaerobic/catastrophic model of exercise physiology, 16 17 postulates that fatigue during high intensity exercise of short duration results from a skeletal muscle "anaerobiosis" (see Addendum) that develops when the oxygen requirement of the active skeletal muscles exceeds the heart's capacity to further augment oxygen delivery to exercising muscle by increasing the cardiac output. (bmj.com)
- anaerobiosis was obtained by using an anaerobic jar as described in Materials and Methods. (asm.org)
- In this study, we aimed to localize currently known key proteins involved in the anaerobic response to within or outside of the chloroplast as well as to identify proteins that are significantly induced under anaerobiosis through quantitative proteomics. (mcponline.org)
Aerobiosis2
- When reactors were placed in anaerobiosis by N2 bubbling, ammonia production was sustained several days and the total ammonia formed was about two fold higher than in aerobiosis. (semanticscholar.org)
- Comparative evaluation of the protein profile by resolving M. tuberculosis proteins in a two-dimensional gel following exposure to pH 6 and anaerobiosis (A) or pH 7 and aerobiosis (B). At least 10 proteins showed upregulation of expression. (asm.org)
Stemness3
- Anaerobiosis and Stemness: An evolutionary paradigm provides a context for understanding the many complexities and evolutionary features of stem cells and the clinical implications of anaerobiosis stem cells. (abebooks.com)
- Anaerobiosis and Stemness is an important resource for stem cell and developmental biologists alike, as well as oncologists, cancer biologists, and researchers using stem cells for regeneration. (abebooks.com)
- The concept of anaerobiosis and stemness presented in this unique book implies the epigenetic missing link in stem cells behavior. (abebooks.com)
Mitochondrial3
- NADH, produced from glycolysis during anaerobiosis and oxidized in the mitochondrial electron transport chain, should shift the composition of metabolites formed during anaerobiosis with increased conversion of pyruvate to alanine and greater involvement of other transamination reactions, such as those involving γ-aminobutyric acid formation. (oup.com)
- The stimulatory effect of anaerobiosis was mimicked by infiltrating leaves with inhibitors of mitochondrial respiration or of the chlororespiratory oxidase, therefore, showing that changes in the redox state of intersystem electron carriers tightly control the rate of PS I-driven cyclic electron flow in vivo. (plantphysiol.org)
- To expand the current knowledge on the subject, we investigated the chloroplast and mitochondrial proteomes of C. reinhardtii under anaerobiosis. (mcponline.org)
Nitrite1
- Long term effects of MSX, nitrite and anaerobiosis are discussed. (semanticscholar.org)
Chlamydomonas3
- Light-induced photosynthetic electron transfer upon anaerobiosis in Chlamydomonas : kinetics, electron sinks and setup of a fluorescence screen to identify new players. (uliege.be)
- Reference : Light-induced photosynthetic electron transfer upon anaerobiosis in Chlamydomonas : k. (uliege.be)
- In Chlamydomonas reinhardtii, prolonged anaerobiosis leads to the expression of various fermentative pathways. (uliege.be)
Lactic acid1
- Such skeletal muscle anaerobiosis ultimately prevented the neutralization of the lactic acid that, Hill believed, initiated muscle contraction. (bmj.com)
Nitrate1
- Effect of anaerobiosis and nitrate on gene expression in Pseudomonas aeruginosa. (nih.gov)
Proteins2
Effect4
- Anaerobiosis and acid-base status in marine invertebrates: effect of environmental hypoxia on extracellular and intracellular pH in Sipunculus nudus L. (awi.de)
- In the present study, we examined the effect of anaerobiosis on the virulence of Salmonella Typhi , a Gram negative bacteria which invades through the gut mucosa and is responsible for typhoid fever . (bvsalud.org)
- Effect of blocking integrins as well as mannose receptors on the uptake of M. tuberculosis grown under anaerobiosis by macrophages cultured in the presence of 10% autologous serum. (asm.org)
- Effect of anaerobiosis on soybean roots. (plantphysiol.org)
Shift1
- In a next step, we screen an insertional mutant library (~3000 clones) on the basis of the fluorescence induction kinetics upon a shift from dark-anaerobiosis to light. (uliege.be)
Metabolic1
- Facultative metabolic rate depression is the common adaptive strategy of anaerobiosis, hibernation, and estivation, as well as a number of other arrested states. (carleton.ca)
Expression1
- A group of 87 genes showed a delayed and steady increase in expression that specifically responded to anaerobiosis. (biomedcentral.com)
Light2
- In this work, light-induced photosynthetic electron transfer after a prolonged dark-anaerobiosis period was studied by following the kinetics of chlorophyll fluorescence emission, P700 oxidation and proton-motive force formation and consumption during the first 3 seconds of illumination. (uliege.be)
- Measurements of energy storage at different modulation frequencies of far-red light showed that anaerobiosis-induced cyclic PS I activity in leaves of a tobacco mutant deficient in the plastid Ndh complex was kinetically different from that of the wild type, the cycle being slower in the former leaves. (plantphysiol.org)
High2
- The original model of Hill and his colleagues proposed that performance during exercise of high intensity was limited by skeletal muscle anaerobiosis that developed as the result of a limiting skeletal muscle blood flow, following the onset of myocardial ischaemia. (bmj.com)
- When leaf discs were placed in anaerobiosis, a high and rapid cyclic PS I activity was measured. (plantphysiol.org)
Range2
- A modified pore model is proposed, in which anaerobiosis is calculated from a range of air filled pore size classes, based on the soil water retention curve and the soil moisture content. (wur.nl)
- Despite the wide range of knowledge regarding C. reinhardtii and anaerobiosis, many of the studies have been based on transcript or metabolite levels ( 6 ⇓ ⇓ ⇓ - 10 ). (mcponline.org)
Reduction1
- Transmembrane reduction of α-lipoic acid was strongly stimulated by anaerobiosis and anaerobic stimulation was inhibited by 2-(n-heptyl)-4- hydroxyquinoline-N-oxide. (elsevier.com)