Phenol-water extracts of gram-positive Listeria monocytogenes and gram-negative Salmonella typhimurium. Comparison of biological activities.

abstract：:Plenty of metagenomic studies have suggested possible associations between microbiome composition and colorectal cancer (CRC). However, these techniques are not economic enough for routine use so far. Therefore, we explored the possibility to detect species associated with colorectal cancer by conventional culture fro...

journal_title：Folia microbiologica

authors： Starý L,Mezerová K,Vysloužil K,Zbořil P,Skalický P,Stašek M,Raclavský V

更新日期：2020-12-01 00:00:00

abstract：:A small-colony forming variant of Escherichia coli with a mutation in the ncf gene was analysed. The alternation of the protein composition in the cytoplasmic membrane and the interaction with K and E group colicins indicated a membrane mutation. The effect of this mutation on some membrane-bound processes, the activi...

journal_title：Folia microbiologica

authors： Braná H,Hubácek J,Michaljanicová D,Holubová I,Cejka K

更新日期：1977-01-01 00:00:00

abstract：:During cultivation in a minimal medium with glucose Alternaria tenuissima and Aspergillus vesicolor produce constitutively alpha- and beta-glucanases. Fractions of beta-1,3-glucanases exhibiting affinity for laminarin were separated by means of gel filtration chromatography. Two neutral beta-1,3-glucanases with affini...

journal_title：Folia microbiologica

authors： Jirků V,Kraxnerová B,Krumphanzl V

更新日期：1980-01-01 00:00:00

abstract：:The biological activity and the presence of genes sfp and ituD (surfactin and iturin A) among Bacillus strains isolated from the Amazon basin were determined. Bacillus spp. were tested for hemolytic activity and inhibition of fungal growth by agar plate assays in parallel with PCR for identification of sfp and ituD ge...

journal_title：Folia microbiologica

authors： Velho RV,Medina LF,Segalin J,Brandelli A

更新日期：2011-07-01 00:00:00

abstract：:Killer strains of Saccharomyces cerevisiae producing killer toxin K1 kill sensitive cells but are resistant to their own toxin. It is assumed that in the producer, an effective interaction between the external toxin and its plasma membrane receptor or the final effector is not possible on the grounds of a conformation...

journal_title：Folia microbiologica

authors： Valis K,Masek T,Novotná D,Pospísek M,Janderová B

更新日期：2006-01-01 00:00:00

abstract：:The temperature dependence of fluorescence anisotropy, lifetime and differential tangent of 1,6-diphenyl-1,3,5-hexatriene (DPH) and its polar trimethylammonium derivative (TMA-DPH) were investigated in cytoplasmic membranes of Bacillus subtilis. The fluorescence parameters were compared in the two types of membranes p...

journal_title：Folia microbiologica

authors： Konopásek I,Svobodová J,Toptygin DD,Svoboda P

更新日期：1990-01-01 00:00:00

abstract：:Coxiella burnetii (C. burnetii), an intracellular zoonotic bacterium causing Q fever, occurs widely in cattle herds. After invasion of the pregnant uterus and initial localization in the placenta, active C. burnetii infections may spread to the fetus hematogenously or by the amniotic-oral route and thus may cause abor...

journal_title：Folia microbiologica

authors： Freick M,Konrath A,Enbergs H,Walraph J,Weber J,Eulenberger K

更新日期：2018-03-01 00:00:00

abstract：:The microflora of the chernozem soil mineralized 62% of the lactose retained on a column consisting of three 10-g layers of the soil at a daily flow of 48 mg of the sugar. Only 45% of the sugar was mineralized when the daily flow was 136 mg. The highest value of the beta-galactosidase activity in the system of heteroc...

journal_title：Folia microbiologica

authors： Rysavý P

更新日期：1981-01-01 00:00:00

abstract：:Diseases of the central nervous system (CNS) mean for the human organism a potentially dangerous situation. An investigation of cerebrospinal fluid (CSF) provides important information about a character of CNS impairment in the decision-making diagnostic and therapeutic algorithm. The authors present a brief overview ...

journal_title：Folia microbiologica

authors： Hepnar D,Adam P,Žáková H,Krušina M,Kalvach P,Kasík J,Karpowicz I,Nasler J,Bechyně K,Fiala T,Mamiňák M,Malíková I,Mareš J,Šigut V,Tokár Z,Vránová J

更新日期：2019-05-01 00:00:00

abstract：:The purpose of this study was to isolate bioluminescent strains and to phenotypically and biochemically identify them based on the 16S rRNA gene sequence. 16S rRNA gene sequence analysis of the 11 isolates revealed that they belonged to Shewanella woodyi. Nevertheless, they were determined to exhibit various growth ch...

journal_title：Folia microbiologica

authors： Ersoy Omeroglu E,Karaboz I,Sudagidan M

更新日期：2014-01-01 00:00:00

abstract：:Antibody response to major porin proteins of S. Typhi (OmpC and OmpF) was evaluated in sera of typhoid patients (culture positive, n = 28; Widal positive, n = 16). Sera from fever patients (n = 6) having etiology other than Salmonella, and normal healthy human controls (n = 18) were also included. No significant diffe...

journal_title：Folia microbiologica

authors： Kumar S,Kapil S,Gautam V,Verma SK,Ray P

更新日期：2010-09-01 00:00:00

abstract：:Antibacterial effect of chitooligosaccharides (COS) and low molar mass chitosans (LMWC) is considered as one of the most important characteristics of chitosan (CS) hydrolysates. Here, we show the in vitro effect of different COS, LMWC, and CS on representative anaerobic bacteria isolated from human colon as a possibil...

journal_title：Folia microbiologica

authors： Simůnek J,Brandysová V,Koppová I,Simůnek J Jr

更新日期：2012-07-01 00:00:00

abstract：:Ecosystems worldwide are exposed to pollutants connected to the industrial production of pharmaceuticals. The objective of this study was to study the composition and characteristics of the soil microbial communities that had been exposed to long-term selection pressure caused by the industrial production of penicilli...

journal_title：Folia microbiologica

authors： Borčinová M,Pitkina A,Marešová H,Štěpánek V,Palyzová A,Kyslík P

更新日期：2020-12-01 00:00:00

abstract：:This is the first report describing precipitation of bacteriophage particles with zinc chloride as a method of choice to isolate infectious lytic bacteriophages against Pectobacterium spp. and Dickeya spp. from environmental samples. The isolated bacteriophages are ready to use to study various (ecological) aspects of...

journal_title：Folia microbiologica

authors： Czajkowski R,Ozymko Z,Lojkowska E

更新日期：2016-01-01 00:00:00

abstract：:A decrease in the content of ochratoxin A (OA) was observed in milk samples fermented by yoghurt bacteria and bifidobacteria. OA was added to the milk before fermentation at a rate of 0.05-1.5 mg/L. No residues of OA were found in samples containing 0.05 and 0.1 mg/L of OA, fermented by S. Salivarius subsp. thermophil...

journal_title：Folia microbiologica

authors： Skrinjar M,Rasić JL,Stojicić V

更新日期：1996-01-01 00:00:00

abstract：:Streptomyces caelestis DSM 40084 produces two osmolytes, viz. 2-O-(alpha-D-glucopyranosyl)-zeta-glyceric acid (GG) and trehalose. Both compounds were isolated and identified by nuclear magnetic resonance spectroscopy and mass spectrometry. A very sensitive regulation of the cell osmolytes was demonstrated in exponenti...

journal_title：Folia microbiologica

authors： Pospísl S,Halada P,Petrícek M,Sedmera P

更新日期：2007-01-01 00:00:00

abstract：:Spatial distribution of ectomycorrhizae-associated basidiomycetes was determined in oakbirch forest using terminal restriction fragment length polymorphism (T-RFLP) analysis. The data were correlated with actual soil humidity, pH, electric conductivity of the soil extract, absorbance A(465) and A(665) of water and alk...

journal_title：Folia microbiologica

authors： Gryndler M,Soukupová L,Gryndlerová H,Baldrian P,Hršelová H

更新日期：2010-09-01 00:00:00

abstract：:The minimum inhibitory concentrations (MICs) of 24 antibiotics were determined for 45 Stenotrophomonas maltophilia strains by the microdilution method at 37 and 30 degrees C (after 24 h and 48 h of incubation). The isolates were obtained from mouth swabs and pus of 116 captive snakes whereas the identical strains (bas...

journal_title：Folia microbiologica

authors： Hejnar P,Kolár M,Sauer P

更新日期：2010-01-01 00:00:00

abstract：:Microorganisms that cause chronic infections exist predominantly as surface-attached stable communities known as biofilms. Microbial cells in biofilms are highly resistant to conventional antibiotics and other forms of antimicrobial treatment; therefore, modern medicine tries to develop new drugs that exhibit anti-bio...

journal_title：Folia microbiologica

authors： Paldrychová M,Kolouchová I,Vaňková E,Maťátková O,Šmidrkal J,Krmela A,Schulzová V,Hajšlová J,Masák J

更新日期：2019-01-01 00:00:00

abstract：:A rifampicin-resistant variant of two strains of Lactobacillus plantarum, one strain of Pediococcus acidilactici, and one strain of Enterococcus faecium were used for the experimental production of lucerne silage. Laboratory silage without inoculants served as a control. Counts of total anaerobes, total lactic acid ba...

journal_title：Folia microbiologica

authors： Vlková E,Rada V,Bunešová V,Ročková S

更新日期：2012-07-01 00:00:00

abstract：:The postantibiotic effect (PAE) and the postantibiotic sub-MIC effect (PASME) of ciprofloxacin, pefloxacin and amikacin were studied for Salmonella typhimurium and S. enteritidis strains. PAE was induced by 2 x and 4 x MIC of antibiotics studied for 0.5 h. After PAE and PASME their effect on prophage induction of a ly...

journal_title：Folia microbiologica

authors： Majtán V,Majtánová L

更新日期：1997-01-01 00:00:00

abstract：:The majority of antibiotics and substances with diverse biological activity used in medicine are produced by actinomycetes, nonfilamentous bacteria and fungi. Other microorganisms, such as myxobacteria, pseudomonads, nocardias, basidiomycetes, marine microorganisms, enterobacteria, halobacteria, hyperthermophiles etc....

journal_title：Folia microbiologica

authors： Bĕhal V

更新日期：2003-01-01 00:00:00

abstract：:Submerged cultures of the low-production strain of Tolypocladium inflatum DSM 63544 formed a mixture of cyclosporins (CS) consisting of CS-A, CS-B, "CS-3" and "CS-4". Glucose, sucrose and maltose were highly favored for biomass production but provided a different physiological state necessary for CS biosynthesis. Not ...

journal_title：Folia microbiologica

authors： Zhao DX,Beran M,Kozová J,Rehácek Z

更新日期：1991-01-01 00:00:00

abstract：:The ability of six bifidobacterial strains (3 of human origin and 3 isolates from fermented milk products) to utilize glucose, lactose, melezitose, sucrose, raffinose, and stachyose was determined. Dairy-related bifidobacterial strains were identified as Bifidobacterium animalis (2 strains) or as B. pseudolongum (1 st...

journal_title：Folia microbiologica

authors： Rada V,Bartonová J,Vlková E

更新日期：2002-01-01 00:00:00

abstract：:Mutations occurring in viral polymerase gene of hepatitis B virus (HBV) due to the use of nucleos(t)id analogs reduce the activity of the drugs by causing antiviral resistance. In this study, it was aimed to evaluate mutations responsible for drug resistance and drug resistance mutation rates in patients followed up b...

journal_title：Folia microbiologica

authors： Alacam S,Karabulut N,Yolcu A,Onel M,Atasoy A,Kaymakoglu S,Agacfidan A

更新日期：2019-03-01 00:00:00

abstract：:Infiltration of immune cells into CNS is one of the essential events in multiple sclerosis (MS) development. Adhesion molecules like the intercellular adhesion molecule 1 (ICAM-1) play critical role in this process. Therefore, the ICAM1 gene containing two important single-nucleotide polymorphisms (SNPs) belongs to ca...

journal_title：Folia microbiologica

authors： Shawkatová I,Javor J,Párnická Z,Bucová M,Čopíková-Cudráková D,Michalík J,Gmitterová K,Čierny D,Buc M,Ďurmanová V

更新日期：2017-07-01 00:00:00

abstract：:The effects of pH on denitrifying enzyme activity (DEA) and on the ratio of the denitrification products, N(2)O and N(2), were determined in three pasture soils differing in cattle impact. The linkage between intrinsic differences in the denitrifying communities and pH effects on relative N(2)O production was also ass...

journal_title：Folia microbiologica

authors： Cuhel J,Simek M

更新日期：2011-05-01 00:00:00

abstract：:A gram-negative bacterium GXGL-4A was originally isolated from maize roots. It displayed nitrogen-fixing (NF) ability under nitrogen-free culture condition, and had a significant promotion effect on cucumber growth in the pot inoculation test. The preliminary physiological and biochemical traits of GXGL-4A were charac...

journal_title：Folia microbiologica

authors： Sun S,Chen Y,Cheng J,Li Q,Zhang Z,Lan Z

更新日期：2018-11-01 00:00:00

abstract：:An extracellular acid phosphatase isolated from the culture of a wild strain Aspergillus niger, producing the dephosphorylating 3-phytase, was obtained in a homogeneous form by sequential application of ultrafiltration through PS 50 membrane, gel filtration on Sephadex G-100 and ion exchange chromatography on DEAE-Sep...

journal_title：Folia microbiologica

authors： Gargova S,Sariyska M,Angelov A,Stoilova I

更新日期：2006-01-01 00:00:00

abstract：:Superoxide dismutases, both cytosolic Cu, Zn-SOD encoded by SOD1 and mitochondrial Mn-SOD encoded by SOD2, serve Saccharomyces cerevisiae cells for defense against the superoxide radical but the phenotypes of sod1A and sod2delta mutant strains are different. Compared with the parent strain and the sod1delta mutant, th...

journal_title：Folia microbiologica

authors： Dziadkowiec D,Krasowska A,Liebner A,Sigler K

更新日期：2007-01-01 00:00:00