Alternative sources of biologically active substances.

abstract：:Extrusion of metabolites (glycerol, lactic, malic, and succinic acid) during the medium acidification caused by resting baker's yeast supplied with 200 mM glucose was studied under aerobic and anaerobic conditions and in the absence and presence of 14 mM KCl. The maximum levels of glycerol and of the sum of acids (abo...

journal_title：Folia microbiologica

authors： Sigler K,Knotková A,Páca J,Wurst M

更新日期：1980-01-01 00:00:00

abstract：:The autofluorescence (primary fluorescence, AF) of agar cultures of the brown-rot fungus Piptoporus betulinus was investigated in Zeiss Jenalumar and Nikon Eclipse 8201 fluorescence microscopes at various excitations. The strongest AF of hyphae was found in minimal medium with glucose, where the hyphae exhibited green...

journal_title：Folia microbiologica

authors： Zižka Z,Vêtrovský T,Gabriel J

更新日期：2010-11-01 00:00:00

abstract：:Pullulanase of Klebsiella oxytoca is one of a wide variety of extracellular proteins that are secreted by Gram-negative bacteria by the complex main terminal branch (MTB) of the general secretory pathway. The roles of some of the 14 components of the MTB are now becoming clear. In this review it is proposed that most ...

journal_title：Folia microbiologica

authors： Pugsley AP,Francetic O,Hardie K,Possot OM,Sauvonnet N,Seydel A

更新日期：1997-01-01 00:00:00

abstract：:Rabbits, sensitized with M. kansasii, responded by a profound inhibition of migration of macrophages elicited by both antigens: the migration index for homologous antigen was 0.51 in the direct test and 0.65 in the indirect test; for heterologous antigen the indexes were 0.53 and 0.67. However, significant differences...

journal_title：Folia microbiologica

authors： Kubín M,Svejcar J,Wisingerová E,Pekárek J,Svandová E,Kubícková M

更新日期：1980-01-01 00:00:00

abstract：:Over the years, quinones or its derivatives have been extensively studied due to their broad therapeutic spectrum. However, due to the significant structural differences between the individual naturally occurring quinones, investigation of the precise mechanism of their action is essential. In this context, we have an...

journal_title：Folia microbiologica

authors： Castro FAV,de Souza GFM,Pereira MD

更新日期：2020-02-01 00:00:00

abstract：:Distribution of microtubules and F-actin in aerobically growing cells of Dipodascus magnusii, belonging to the class Saccharomycetes was analyzed using immunofluorescence microscopy and labeling with rhodamine-tagged phalloidin. A conspicuous system of permanent cytoplasmic microtubules was observed in association wit...

journal_title：Folia microbiologica

authors： Hasek J,Trachtulcová P,Kohlwein SD,Streiblová E

更新日期：2003-01-01 00:00:00

abstract：:Genetic diversity of 89 isolates of Rhizoctonia solani isolated from different pulse crops representing 21 states from 16 agro-ecological regions of India, 49 morphological, and 7 anastomosis groups (AGs) was analyzed using 12 universal rice primers (URPs), 22 random amplified polymorphic DNA (RAPD), and 23 inter-simp...

journal_title：Folia microbiologica

authors： Dubey SC,Tripathi A,Upadhyay BK

更新日期：2012-11-01 00:00:00

abstract：:Biological activity of secondary metabolites produced by a plant-growth-promoting Pseudomonas fluorescens was evaluated. The strain produced antibiotics phenazine (PHE), 2,4-diacetylphloroglucinol (PHL) and siderophore pyoverdin (PYO) in standard King's B and succinic acid media, respectively. After extraction, PYO wa...

journal_title：Folia microbiologica

authors： Boruah HP,Kumar BS

更新日期：2002-01-01 00:00:00

abstract：:The effect of subinhibitory concentrations (subMICs) of new organic ammonium salts of four homologous series of alkylammonium bromides (32 compounds) was determined with respect to the induction of lysogenic strain prophage, influence of permeability reactions in a rabbit skin test and cytotoxic changes of monolayers ...

journal_title：Folia microbiologica

authors： Majtánová L,Hostacká A,Majtán V

更新日期：1995-01-01 00:00:00

abstract：:Inhibition of methanogenesis in ruminal cultures was attempted by hindering thiamine availability through its degradation by 'polyphenols' and competition for active sites on enzymes and transporters using thiamine structural analogs. Effects on fermentation were small and not consistently reversed by adding thiamine....

journal_title：Folia microbiologica

authors： Ungerfeld EM,Rust SR,Burnett R

更新日期：2009-11-01 00:00:00

abstract：:Using fermentation with a selected strain of Acetomonas oxydans it was possible to convert 2-deoxy-2-fluro-D-glucitol to 5-deoxy-5-fluoro-L-sorbose, in agreement with Bertrand's and Hudson's rule. The last-named compound was isolated in a yield of 88%. Both compounds were little toxic against Acetomonas oxydans. ...

journal_title：Folia microbiologica

authors： Kulhánek M,Tadra M,Pacák J,Trejbalová H,Cerný M

更新日期：1977-01-01 00:00:00

abstract：:Purification of streptococcal extracellular NAD+ nucleosidase is associated with changes of kinetic properties. A high-molecular weight component is required for a full activity of the enzyme. The component is not produced by bacteria and is present in the Todd-Hewitt cultivation medium, the beef-heart extract serving...

journal_title：Folia microbiologica

authors： Zahradník FJ

更新日期：1980-01-01 00:00:00

abstract：:This work was aimed to develop a multiplex PCR assay to detect infectious agents such as Clavibacter michiganensis subsp. michiganensis, Fusarium sp, Leveillula taurica, and begomoviruses in tomato (Solanum lycopersicum) plants. Specific primer sets of each pathogen were designed based on intergenic ribosomal RNA sequ...

journal_title：Folia microbiologica

authors： Quintero-Vásquez GA,Bazán-Tejeda ML,Martínez-Peñafiel E,Kameyama-Kawabe L,Bermúdez-Cruz RM

更新日期：2013-07-01 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：:Enzyme synthesis of tryptophan from indole, pyruvate and ammonium salts was studied using Escherichia coli cells exhibiting a significant tryptophanase activity. In addition to the effect of cultivation medium composition and cultivation conditions, factors affecting the course of the conversion were investigated. Pro...

journal_title：Folia microbiologica

authors： Zeman R,Plachý J,Bulantová H,Sikyta B,Pavlasová E,Stejskalová E

更新日期：1990-01-01 00:00:00

abstract：:Using fluorescein-labelled antibodies against gamma, mu and alpha chains, Ig-containing cells in palatine tonsils were studied in 120 patients. The aim of this study was to determine the most frequently repeated typical findings as regards the numbers and localisation of these cells in tonsils and to confront the data...

journal_title：Folia microbiologica

authors： Franĕk J,Kubín V,Novák V,Bedka J

更新日期：1981-01-01 00:00:00

abstract：:Candida bracarensis is an emerging cryptic species within the Candida glabrata clade. To date, little is known about its epidemiology, virulence, and antifungal susceptibility. This study documents the occurrence of C. bracarensis for the first time in Mexico and focuses on its in vitro production of hydrolytic enzyme...

journal_title：Folia microbiologica

authors： Treviño-Rangel RJ,Espinosa-Pérez JF,Villanueva-Lozano H,Montoya AM,Andrade A,Bonifaz A,González GM

更新日期：2018-07-01 00:00:00

abstract：:We report a novel application of calcein-acetomethyl ester in flow cytometry for rapid estimation of the number of G+-bacteria in rodent feces (Apodemus sylvaticus and Mus sp.f. muridae). We also use the combined application of flow cytometry and Syto-13 or Sypro Orange staining to count rapidly the total bacterial po...

journal_title：Folia microbiologica

authors： Moragues M,Comas-Riu J,Vives-Rego J

更新日期：2004-01-01 00:00:00

abstract：:Procedures to introduce point mutations, restriction sites and insert or delete DNA fragments are very important tools to study protein function. We describe here two-step PCR-based method for generating single or multiple mutations, insertions and deletions in a small region of the sequence. In the first step, a uniq...

journal_title：Folia microbiologica

authors： Adamec J,Kalousek F

更新日期：1999-01-01 00:00:00

abstract：:Some Bacillus subtilis mutants with different levels of homoserine dehydrogenase were described. Strains that do not accumulate methionine have a high homoserine dehydrogenase activity. Low activity was detected in mutants where cell growth was completely inhibited by 0.7 mmol/L methionine. A low concentration of dime...

journal_title：Folia microbiologica

authors： Kalcheva HO,Shanskaya VO,Smutny J,Maluta SS

更新日期：1991-01-01 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：:When investigating the possible antitrichomodal effect of 41 phenylsazones, nitro- and dinitro-phenylhydrazones a significant inhibitory effect on multiplication of Trichomonas foetus could be detected in 14 derivatives; eight derivatives were ineffective, other derivatives exhibited only a slight effect. The inhibito...

journal_title：Folia microbiologica

authors： Fuska J,Fusková A,Kettner M,Frank V,Linek K

更新日期：1982-01-01 00:00:00

abstract：:Studies on the production of extracellular cellulase in two aquatic hyphomycetes Lunulospora curvula and Flagellospora penicillioides have shown that several factors such as carbon source, nitrogen source, pH and temperature affect the production of the enzyme. Experiments have shown that carboxymethyl cellulose is th...

journal_title：Folia microbiologica

authors： Chandrashekar KR,Kaveriappa KM

更新日期：1991-01-01 00:00:00

abstract：:Effects of increasing doses of UV-B radiation on photosynthetic efficiency (PE) and motility in Chlamydomonas reinhardtii were investigated. The exposure time ranged from 10 to 120 min at 0.73 W/m2 UV-B radiation. A decrease in compensation points (CP) was followed by an increase in PE on extending the UV-B treatment ...

journal_title：Folia microbiologica

authors： Danilov RA,Ekelund NG

更新日期：2000-01-01 00:00:00

abstract：:The pathogenesis of bacillary dysentery can be studied at different levels of integration of the cellular components that constitute the colonic mucosal barrier. We considered the interaction of Shigella flexneri in three experimental systems that provide complementary information and a scheme of events occurring in h...

journal_title：Folia microbiologica

authors： Sansonetti PJ

更新日期：1998-01-01 00:00:00

abstract：:Nalidixic acid was used for describing more accurately the terminal replication region of the Mycobacterium phlei chromosome. Cell division in synchronized cultures was not sensitive to this acid any more between 185-190 min, i.e. about 10 min after replication of the ser gene, the last of 24 genes of the replication ...

journal_title：Folia microbiologica

authors： Konícek J,Konícková-Radochová M,Cáslavská J,Wolf A

更新日期：1981-01-01 00:00:00

abstract：:Addition of glucose to a resting cell suspension of the yeast Saccharomyces cerevisiae was accompanied by marked shifts of the G alpha-protein subunits from the plasma membrane to the cell interior. This process was rapid with half-times between < 10 and 20 s. The decrease of the plasma membrane pool of the Gi alpha/G...

journal_title：Folia microbiologica

authors： Kotyk A,Ihnatovych I,Lapathitis G,Lamash N,Svoboda P

更新日期：2001-01-01 00:00:00

abstract：:Two Bacillus cereus feather-degrading strains (23/1 and 6/2) were transformed using a recombinant plasmid p5.2 carrying the alkaline proteinase gene (aprE). A high level of the aprE gene expression was observed when the recombinant strains were grown on sporulation medium. The expression of the aprE gene proceeded dur...

journal_title：Folia microbiologica

authors： Ouled-Haddar H,Zaghloul TI,Saeed HM

更新日期：2010-01-01 00:00:00

abstract：:Physiological and biochemical properties were tested in 45 isolates of Aspergillus egyptiacus (16 isolates), Emericella nidulans (16) and Aspergillus versicolor (13). The three fungal species exhibited common and similar features. The big similarity between A. egyptiacus and E. nidulans was greater than between A. egy...

journal_title：Folia microbiologica

authors： Zohri AA,Ismail MA

更新日期：1994-01-01 00:00:00

abstract：:The possibility of utilizing derivatives of 4-methylumbelliferone (4-MUBF) for the determination of activity of enzymes from the group of hydrolyses was tested in 20 strains of 12 species of mycobacteria. The method proved to be suitable especially for determination of arylsulphatase, beta-D-galactose and acid phospha...

journal_title：Folia microbiologica

authors： Slosárek M

更新日期：1980-01-01 00:00:00