Abstract：
:The synthesis of exocellular proteinase decreases with increasing concentration of amino acids in the growth medium. After removal of amino acids the enzyme synthesis is gradually restored to normal values. The presence of inhibitors of transcription (actinomycin D) or translation (chloramphenicol) blocks the restoration of enzyme synthesis. No active or inactive precursors of the exocellular enzyme could be detected in the cell. It is likely that the enzyme synthesis is regulated by amino acids at the level of specific mRNA synthesis rather than at the translation level or at the level of secretion. The activity of the enzyme that has already been secreted to the external medium is partially inhibited by amino acids. The periplasmic proteinase is repressed by amino acids to the same extent as the exocellular enzyme. The content of the enzyme(s) inside the protoplast is also decreased during growth in the presence of amino acids.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Moravcová J,Chaloupka Jdoi
10.1007/BF02875957subject
Has Abstractpub_date
1984-01-01 00:00:00pages
273-81issue
4eissn
0015-5632issn
1874-9356journal_volume
29pub_type
杂志文章abstract：:Mycobacterium avium paratuberculosis (Map) is a pathogen which causes a chronic progressive granulomatous enteritis known as paratuberculosis or Johne's disease and it primarily affects wild and domestic ruminants. The aim of this research was to examine a flock which consisted of 294 goats and was located in Garfagna...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-017-0518-7
更新日期：2017-11-01 00:00:00
abstract：:Streptococcus dysgalactiae subsp. equisimilis (SDSE), belonging to the group C and G streptococci, are human pathogens reported to cause clinical manifestations similar to infections caused by Streptococcus pyogenes. To scrutinize the distribution of gene coding for S. pyogenes virulence factors in SDSE, 255 isolates ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-018-0595-2
更新日期：2018-09-01 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
pub_type： 杂志文章
doi：10.1007/BF02884064
更新日期：1991-01-01 00:00:00
abstract：:Uropathogenic Escherichia coli (UPEC) isolates contain large genomic segments, termed pathogenicity islands (PAIs), that contribute to their virulence. A total of 150 UPEC and 50 commensal E. coli isolates from outpatients were investigated for antimicrobial susceptibility and the presence of eight PAI markers. One hu...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-015-0433-8
更新日期：2016-05-01 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
pub_type： 杂志文章
doi：10.1007/BF02816944
更新日期：1997-01-01 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：:Fungal cells of Aureobasidium pullulans ATCC 201253 were immobilized by entrapment in chitosan beads, and the immobilized cells were investigated for their ability to produce the polysaccharide pullulan using batch fermentation. The 1% chitosan-entrapped fungal cells were capable of producing pullulan for two cycles o...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-011-0048-7
更新日期：2011-07-01 00:00:00
abstract：:Staphylococcus epidermidis is a biofilm-forming bacterial strain that can cause major problems as an agent of nosocomial infections. Bacteria in biofilms are shielded from the environment and can survive high doses of antibiotics. We here test the antibiotic susceptibility of Staphylococcus epidermidis to rising genta...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-017-0568-x
更新日期：2018-05-01 00:00:00
abstract：:Saccharomyces cerevisiae strain MW11 is a temperature-sensitive mutant which exports twenty times more proteins at 37 degrees C than parental or wild-type strains do. To understand the mechanism underlying the protein overexport in the mutant the possibility of an altered cell-wall structure leading to facilitated rel...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02908954
更新日期：2000-01-01 00:00:00
abstract：:Although humic acids (HA) are involved in many biological processes in soils and thus their ecological importance has received much attention, the degradative pathways and corresponding catalytic genes underlying the HA degradation by bacteria remain unclear. To unveil those uncertainties, we analyzed transcriptomes e...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-017-0573-0
更新日期：2018-05-01 00:00:00
abstract：:As phospholipases of mycoplasma species may play a role in the pathogenesis of respiratory tract and urogenital tract diseases Mycoplasma mycoides and Acholeplasma laidlawii were examined as to the production of phospholipase A2 (PLA) and attempts were made to purify and characterize it. Both species produced PLA. The...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02814471
更新日期：1989-01-01 00:00:00
abstract：:In the present study, the cDNA sequences of Hsp70 and Hsp90 genes of Isaria farinosa (designated IFHSP70 and IFHSP90) were cloned and characterized using multiple techniques of molecular biology and bioinformatics. The genetic differentiation of the two genes was investigated among 10 geographically separated populati...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-018-00676-x
更新日期：2019-07-01 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
pub_type： 杂志文章
doi：10.1007/BF02931618
更新日期：2006-01-01 00:00:00
abstract：:The effect of dental plaque bacteria on LFA-1 beta expression on peripheral blood leukocytes was studied in 20 patients with early-onset periodontitis and in 10 healthy controls. Stimulation of PMN with selected dental plaque bacteria which play a role in the pathogeny of periodontitis significantly increased the expr...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02815697
更新日期：1996-01-01 00:00:00
abstract：:Several amino acids affected the amount of bacitracin produced by Bacillus licheniformis ATCC 10716 and the high-yielding mutant B. licheniformis AL. The possibility of an amino acid control mechanism for bacitracin biosynthesis is discussed. The two strains showed a different response to the addition of some amino ac...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02926454
更新日期：1979-01-01 00:00:00
abstract：:A strain of Aspergillus giganteus cultivated in a medium with xylan produced two xylanases (xylanase I and II) which were purified to homogeneity. Their molar mass, estimated by SDS-PAGE, were 21 and 24 kDa, respectively. Both enzymes are glycoproteins with 50 degrees C temperature optimum; optimum pH was 6.0-6.5 for ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02931639
更新日期：2004-01-01 00:00:00
abstract：:Analysis of actA gene sequence polymorphism has been shown to be an effective and relatively inexpensive method for subtyping Listeria monocytogenes isolates, allowing the division of the population of this species into two deeply separate lineages. This sequence-based method as well as PCR-mediated fingerprinting wer...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-009-0003-z
更新日期：2009-01-01 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
pub_type： 杂志文章,评审
doi：10.1007/s12223-018-0663-7
更新日期：2019-05-01 00:00:00
abstract：:In this report, Gluconobacter strains were screened for coenzyme Q10 (CoQ10) production. A thermotolerant strain, Gluconobacter japonicus FM10, was eventually employed for CoQ10 production optimization. To do so, a two-step optimization strategy was used. The first step focused on biomass increase and the second step ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-018-0666-4
更新日期：2019-07-01 00:00:00
abstract：:The microbial fuel cells (MFCs) are recognized to be highly effective for the biodegradation of phenol. For isolating the phenol-degrading bacteria, the sample containing 500 mg/L phenol was collected from the MFCs. The strain (WL027) was identified basing on the 16S rRNA gene analysis and phylogenetic analysis as Bac...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-017-0536-5
更新日期：2018-01-01 00:00:00
abstract：:Inactivation of seven strains derived from Escherichia coli B differing in their capacity to repair damage to their DNA (exc, pol, rec) after irradiation with far (254 nm) and middle and near (300 to 380 and 320--400 nm) UV light was investigated. The same bacterial strains were also used as hosts for the UV-irradiate...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876690
更新日期：1980-01-01 00:00:00
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：:Mutants of Streptomyces coeruleorubidus, blocked in the biosynthesis of anthracycline antibiotics of the daunomycine complex, were isolated from the production strains after treatment with UV light, gamma-radiation, nitrous acid, and after natural selection; according to their different biosynthetic activity the mutan...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876678
更新日期：1978-01-01 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：:We constructed a SmaI genomic library of Cellulomonas biazotea DNA in E. coli and in the S. cerevisiae shuttle vector, YEP 24. Three clone were identified that conferred the ability for E. coli or S. cerevisiae transformants to produce carboxymethylcellulase (CMCase). Cells transformed with these clones were compared ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02814307
更新日期：1994-01-01 00:00:00
abstract：:The treatment of three patients suffering from chronic bacterial prostatitis who were qualified for an experimental phage therapy protocol managed at the Phage Therapy Unit in Wrocław is described. They had previously been treated unsuccessfully with long-term targeted antibiotics, autovaccines, and laser biostimulati...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-009-0064-z
更新日期：2009-09-01 00:00:00
abstract：:The yellow-green alga Trachydiscus minutus (class Xanthophyta) was cultivated in a standard medium and in media without sulfur and nitrogen. Its yield after a 16-d cultivation reached 13 g dry mass per 1 L medium. The content of oligoenoic ('polyenoic') fatty acid (PUFA), i.e. eicosapentaenoic (EPA), was in excess of ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-010-0039-0
更新日期：2010-05-01 00:00:00
abstract：:Genetic mapping of the chromosome of the bacteriophage PS8 of Agrobacterium tumefaciens using temperature sensitive (ts) mutants of the bacteriophage is described. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02927304
更新日期：1979-01-01 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：:A comparative examination of reduced methyl [MV·](+) and benzyl [BV·](+) viologens (as artificial electron donors for quantitative estimation of the respiratory periplasmic (Nap) and membrane-embedded (Nar) nitrate reductases) using a newly constructed nap mutant strain of Paracocccus denitrificans was done. The activ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-011-0004-6
更新日期：2011-01-01 00:00:00
