Search Results - "Trchounian, A."

Novel approach to combat antibiotic resistance: evaluation of some Armenian herb crude extracts for their antibiotic modulatory and antiviral properties by Ginovyan, M., Trchounian, A.

“…Aims One of the strategies to combat antibiotic resistance can be the use of plant materials in combination with antibiotics, taking into account that…”
Get full text

Effects of iron oxide (Fe3O4) nanoparticles on Escherichia coli antibiotic‐resistant strains by Gabrielyan, L., Hakobyan, L., Hovhannisyan, A., Trchounian, A.

“…Aims Antibiotic resistance of different bacteria requires the development of alternative approaches for overcoming this phenomenon. The antibacterial effects…”
Get full text

Hydrogen producing activity by Escherichia coli hydrogenase 4 (hyf) depends on glucose concentration by Trchounian, K., Trchounian, A.

“…Escherichia coli produces molecular hydrogen (H2) during glucose fermentation. This production of H2 occurs via multiple and reversible membrane-associated…”
Get full text

Different role of focA and focB encoding formate channels for hydrogen production by Escherichia coli during glucose or glycerol fermentation by Trchounian, K, Trchounian, A

“…The dependence of H sub(2) production on the formate channels, FocA and FocB, by Escherichia coli at pH 5.5, 6.5 and 7.5 was shown using focA and focB mutants…”
Get full text

The survival of irradiated lactobacilli in the simulated gastrointestinal conditions with antibiotic ceftazidime by Soghomonyan, D., Trchounian, A.

“…Lactobacillus acidophilus is one of the widespread probiotic bacteria that can overcome acid and bile barrier of stomach and intestine, respectively, and then…”
Get full text

External succinate and potassium ions influence Dcu dependent FOF1-ATPase activity and H+ flux of Escherichia coli at different pHs by Mikoyan, G., Karapetyan, L., Vassilian, A., Trchounian, A., Trchounian, K.

“…During fermentation Escherichia coli transport succinate mainly via Dcu family carriers. Current paper describes the role of externally added succinate on N’N’…”
Get full text

Ultrastructural investigation of acidocalcisomes and ATPase activity in yeast Candida guilliermondii NP‐4 as ‘complementary’ stress‐targets by Hovnanyan, K., Marutyan, S., Marutyan, S., Hovnanyan, M., Navasardyan, L., Trchounian, A.

“…As a result of electron microscopic studies of morphogenesis in yeast Candida guilliermondii NP‐4, the formation of new structures of volutin acidocalcisomes…”
Get full text

Evidence for Escherichia coli DcuD carrier dependent F O F 1 -ATPase activity during fermentation of glycerol by Karapetyan, L, Valle, A, Bolivar, J, Trchounian, A, Trchounian, K

“…During fermentation Escherichia coli excrete succinate mainly via Dcu family carriers. Current work reveals the total and N,N'-dicyclohexylcarbodiimide (DCCD)…”
Get full text

Evidence for Escherichia coli DcuD carrier dependent FOF1-ATPase activity during fermentation of glycerol by Karapetyan, L., Valle, A., Bolivar, J., Trchounian, A., Trchounian, K.

“…During fermentation Escherichia coli excrete succinate mainly via Dcu family carriers. Current work reveals the total and N,N’ -dicyclohexylcarbodiimide (DCCD)…”
Get full text

Hydrogen production by Escherichia coli depends on glucose concentration and its combination with glycerol at different pHs by TRCHOUNIAN, K, SARGSYAN, H, TRCHOUNIAN, A

“…Escherichia coli produces molecular hydrogen (H sub(2)) during glucose or mixed carbon (glucose and glycerol) fermentation. Dependence of H sub(2) production…”
Get full text

pH and a mixed carbon-substrate spectrum influence FocA- and FocB-dependent, formate-driven H2 production in Escherichia coli by Hakobyan, B, Pinske, C, Sawers, G, Trchounian, A, Trchounian, K

“…Escherichia coli encodes two formate channels, FocA and FocB, that either export formate or import it for further disproportionation by the formate…”
Get full text

Escherichia coli Dcu C4-dicarboxylate transporters dependent proton and potassium fluxes and FOF1-ATPase activity during glucose fermentation at pH 7.5 by Karapetyan, L., Mikoyan, G., Vassilian, A., Valle, A., Bolivar, J., Trchounian, A., Trchounian, K.

“…•DcuD dependent FOF1-ATPase activity was shown.•DCCD-sensitive proton fluxes were absent in dcuD mutant.•Potassium uptake was absent in dcuD and stimulated in…”
Get full text

Aggregation and Adhesion Activity of Lactobacilli Isolated from Fermented Products In Vitro and In Vivo: a Potential Probiotic Strain by Grigoryan, S., Bazukyan, I., Trchounian, A.

“…Approximately 25 strains of lactobacilli isolated from different dairy products and fermented vegetables were screened according to their possibility to show…”
Get full text

The distinguishing effects of low‐intensity electromagnetic radiation of different extremely high frequencies on Enterococcus hirae: growth rate inhibition and scanning electron microscopy analysis by Hovnanyan, K., Kalantaryan, V., Trchounian, A.

“…A low‐intensity electromagnetic field of extremely high frequency has inhibitory and stimulatory effects on bacteria, including Enterococcus hirae. It was…”
Get full text

Comparative Analysis of UV Irradiation Effects on Escherichia coli and Pseudomonas aeruginosa Bacterial Cells Utilizing Biological and Computational Approaches by Margaryan, A., Badalyan, H., Trchounian, A.

“…Microorganisms have a large number of tools to withstand different, and sometimes strong, environmental stresses, including irradiation, but this ability…”
Get full text

The Effects of Low Doses of Gamma-Radiation on Growth and Membrane Activity of Pseudomonas aeruginosa GRP3 and Escherichia coli M17 by Soghomonyan, D., Margaryan, A., Trchounian, K., Ohanyan, K., Badalyan, H., Trchounian, A.

“…Microorganisms are part of the natural environments and reflect the effects of different physical factors of surrounding environment, such as gamma (γ)…”
Get full text

Structural and functional features of formate hydrogen lyase, an enzyme of mixed-acid fermentation from Escherichia coli by Bagramyan, K, Trchounian, A

“…Formate hydrogen lyase from Escherichia coli is a membrane-bound complex that oxidizes formic acid to carbon dioxide and molecular hydrogen. Under anaerobic…”
Get full text

Adhesive Properties and Acid-Forming Activity of Lactobacilli and Streptococci Under Inhibitory Substances, Such as Nitrates by Hakobyan, L., Harutyunyan, K., Harutyunyan, N., Melik-Andreasyan, G., Trchounian, A.

“…One of the main requirements for probiotics is their ability to survive during passage through gastrointestinal tract and to maintain their activity at…”
Get full text

The role of a space patrol of solar X-ray radiation in the provisioning of the safety of orbital and interplanetary manned space flights by Avakyan, S.V., Kovalenok, V.V., Savinykh, V.P., Ivanchenkov, A.S., Voronin, N.A., Trchounian, A., Baranova, L.A.

“…In interplanetary flight, after large solar flares, cosmonauts are subjected to the action of energetic solar protons and electrons. These energetic particles…”
Get full text

pH and oxidation-reduction potential change of environment during growth of lactic acid bacteria: Effects of oxidizers and reducers by Soghomonyan, D, Akopyan, K, Trchounian, A

“…Decrease of pH and dropping of oxidation-reduction potential have been observed during growing Lactobacillus salivarius 1588 and 3823, Lactobacillus…”
Get full text