Abstract：
:Inducible pigmentation changes were observed in pigmented strains of Brevibacterium sp. M27 and B. flavum treated with N-methyl-N'-nitro-N-nitrosoguanidine. The highest frequency of induction was reached already at a survival of 30-40% with the maximal yield of 6-10%. As compared with the initial yellow colour, three new pigmentation types, viz. white, pink and orange, were observed. The yellow pigmented parent strains are most resistant to the lethal effects of UV radiation. By selecting pigmented mutants of all types on media containing antibiotics it was possible to obtain strains that were resistant either to tetracycline or to streptomycin. Auxotrophic pigmented mutants were also isolated. In multiple mutant strains of Brevibacterium sp. M27 a number of strainsexhibited a changed L-lysine production. In some strains the production was variable, whereasother strains did not produce L-lysine at all and stains with a limited production of other amino acids were also detected.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Konícková-Radochová M,Konícek J,Rytír Vdoi
10.1007/BF02928007subject
Has Abstractpub_date
1988-01-01 00:00:00pages
10-4issue
1eissn
0015-5632issn
1874-9356journal_volume
33pub_type
杂志文章abstract：:Treatment of human group C and G streptococci with cyanogen bromide results in solubilization of surface protein G molecules. Strain-to-strain variation in the quantity, molar mass and functional activity of protein G extracted from representative group C and G isolates led to the identification of three structurally ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02825666
更新日期：1999-01-01 00:00:00
abstract：:Cultures of 33 basidiomycete strains out of 35 tested were viable with unchanged characteristics after four years of maintenance on perlite in cryovials. These cultures can be a good substitute for agar cultures in long-term maintenance of fungi. For comparison, the storage under oil was evaluated but it turned out to...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-008-0084-0
更新日期：2008-01-01 00:00:00
abstract：:Adhesion of group B streptococci to human epithelial vaginal and buccal cells proceeded in three phases which differed qualitatively. Maximum adhesion took place within 10 min of interaction, during the second phase (10-15 min), the percentage of adherent cells decreased significantly (P less than 0.05) whereas during...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02884088
更新日期：1983-01-01 00:00:00
abstract：:Mathematical expressions were derived for the dilution rate and concentration of algae determining the maximum biomass production in a semicontinuous algal culture. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02926655
更新日期：1979-01-01 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
pub_type： 杂志文章
doi：10.1007/s12223-018-0633-0
更新日期：2019-01-01 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
pub_type： 杂志文章
doi：10.1007/BF02876396
更新日期：1980-01-01 00:00:00
abstract：:Genome projects produce a huge amount of sequence information. As a result, the focus of genomics research is turning toward deduction of functional information about newly discovered genes. Thus structural genomics paves the way for a new discipline called functional genomics by providing the information required for...
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/BF02931546
更新日期：2004-01-01 00:00:00
abstract：:Vinasse, a recalcitrant waste of the ethanol industry was employed for the production of polyhydroxyalkanoate (PHA) by the extremely halophilic archaeon, Haloarcula marismortui in shake flasks. The PHA was recovered by osmotic lysis of the cells and subsequent purification by sodium hypochlorite and organic solvents. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-011-0092-3
更新日期：2012-01-01 00:00:00
abstract：:The properties of the 37400 oncogenic strain of Agrobacterium tumefaciens are described. This strain was derived from the VI lysogenic strain originally isolated by Hamilton from a Zinnia elegans tumour. Strain 37400 has a number of properties which render it suitable for quantitative and genetic studies. It is cured ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876963
更新日期：1976-01-01 00:00:00
abstract：:Virulence factors were compared in 15 Aeromonas spp. isolated from faeces of patients with Aeromonas-associated gastroenteritis and in 81 strains isolated from food. Strains from food did not show differences in the distribution of virulence factors when compared with strains isolated from faeces. However, 88.8% of Ae...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02814323
更新日期：1994-01-01 00:00:00
abstract：:The kinetics of extracellular neutral proteinase synthesis by an isogenic stringent (IS58) and a relaxed (IS56) strain of B. subtilis were compared. The specific enzyme formation rate by the stringent strain was higher than that of the relaxed one. Norvaline addition (1 mg/mL) induced the formation of pppGpp and ppGpp...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02883234
更新日期：1987-01-01 00:00:00
abstract：:Kocuria spp. are widely distributed in nature. They are Gram-positive, coagulase-negative, coccoid bacteria belonging to the family Micrococcaceae, suborder Micrococcineae, order Actinomycetales, class Actinobacteria. In general, limited knowledge exists concerning the properties associated with the representants of t...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-015-0431-x
更新日期：2016-05-01 00:00:00
abstract：:Cord and newborn sera were found to possess a significantly decreased in vitro bactericidal activity to Escherichia coli as compared to sera of adult individuals. Hyperbilirubinaemia in neonates suffering from both Rh and ABO incompatibility results in a further significant impairment of the bactericidal activity of t...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02927298
更新日期：1979-01-01 00:00:00
abstract：:A new strain of Bacillus sp. was isolated from a hot water spring in India. This strain generated a high activity of extracellular beta-galactosidase at 37 degrees C in shake flasks. The beta-galactosidase activity was found to increase continuously but the production rate was slower than with some other organisms rep...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02903706
更新日期：1999-01-01 00:00:00
abstract：:Regulatory mechanism of primary metabolism responsible for the biosynthesis of peptide ergot alkaloids was proposed on the basis of experimental results from the production phase of Claviceps purpurea (FR.) Tul. in parasitic and saprophytic cultures. The production-phase metabolism is characterized by uncoupling of gl...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02927365
更新日期：1981-01-01 00:00:00
abstract：:Aeromonads represent bacteria thought to be primarily mostly autochthonous to aquatic environments. This study was focused on the relation with antibiotics and enterocins of identified Aeromonas species isolated from the intestine of trouts living in Slovakian aquatic sources. Intestinal samples from 50 trouts (3 Salm...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-018-0616-1
更新日期：2018-11-01 00:00:00
abstract：:3-(1,1-Dioxadibenzothien-4-oyl)acrylic acid (1) was condensed with compounds containing active methylene groups under Michael reaction conditions to furnish the Michael adducts (lactones 2a-c, lactams 3a-c, ketones 4a,b). The behavior of these adducts toward the action of hydrazine hydrate were investigated. The compo...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02817670
更新日期：2002-01-01 00:00:00
abstract：:The ability of surfactants obtained from three Lactobacillus acidophilus strains to inhibit Staphylococcus aureus and S. epidermidis biofilms was evaluated. Their influence was determined on bacterial initial adhesion, biofilm formation and dispersal using MTT-reduction assay, confocal laser scanning microscopy and im...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-008-0009-y
更新日期：2008-01-01 00:00:00
abstract：:Viridans group streptococci bloodstream infections (VGS BSI) remain a significant cause of mortality and morbidity in patients with severe neutropenia. The goal of our study was to evaluate clinical course and microbiological susceptibility of VGS BSI at our center. Retrospective analysis of all microbiologically docu...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-017-0542-7
更新日期：2018-03-01 00:00:00
abstract：:Hemolytic factor production by pathogenic Candida species is considered an important attribute in promoting survival within the mammal host through the ability to assimilate iron from the hemoglobin-heme group. Hemolytic capability has been evaluated for Candida species based on hemolysis zones on plate assay, analysi...
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/s12223-018-0584-5
更新日期：2018-07-01 00:00:00
abstract：:We present the results of analysis of membrane phosphoproteomes from individual morphological stages of Streptomyces coelicolor that reflect developmentally dependent heterogeneity and phosphorylation of intrinsic and externally added purified Strepomyces aureofaciens EF-Tu. Fast growing nonpathogenic Mycobacterium sm...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-010-0029-2
更新日期：2010-05-01 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
pub_type： 杂志文章
doi：10.1007/BF02816335
更新日期：1996-01-01 00:00:00
abstract：:Isolates of Stenotrophomonas maltophilia species display the feature "temperature-dependent susceptibility" (TDS) to antibiotics. Both 30TDS strains (at least 4 times lower value of minimum inhibitory concentration (MIC) of an antibiotic at 30 than at 37 degrees C) and 37TDS strains (at least 4 times lower value of MI...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02818682
更新日期：2002-01-01 00:00:00
abstract：:Biodegradation of two amphiphilic "soft" antimicrobially active derivatives of lauric (dodecanoic) acid, a quaternary ammonium salt and an amine oxide bearing an amide or ester group, was followed using microorganisms from activated sludge. Primary biodegradation was determined by ion-selective electrodes, total biode...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02814548
更新日期：1993-01-01 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
pub_type： 杂志文章,评审
doi：10.1007/BF02993460
更新日期：2003-01-01 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
pub_type： 杂志文章
doi：10.1007/s12223-018-0608-1
更新日期：2018-11-01 00:00:00
abstract：:The ribosomal stalk is involved directly in the interaction of the elongation factors with the ribosome during protein synthesis. The stalk is formed by a complex of five proteins, four small acidic polypeptides and a larger protein which directly interacts with the rRNA at the GTPase center. In eukaryotes, the acidic...
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/BF02816234
更新日期：1999-01-01 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
pub_type： 杂志文章,评审
doi：10.1007/BF02818976
更新日期：1997-01-01 00:00:00
abstract：:The level of an antibiotic capable of inhibiting the etiological agent at the site of infection is an essential prerequisite for successful antibiotic therapy. In some cases, locally applied antibiotics may compensate for limitations of systemic administration and shorten systemic therapy. We aimed at verifying to wha...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-011-0093-2
更新日期：2012-09-01 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
pub_type： 杂志文章
doi：10.1007/BF02931538
更新日期：2004-01-01 00:00:00
