Abstract:
:Patients suffering from periodontitis or periodontosis were selected for the study. Further subdivision of these groups was based on the presence or absence of herpes and/or adenoviruses in their oral lymphocytes and epithelial cells. The phagocytic and bactericidal activities of oral leukocytes isolated from the same individuals were compared with virus carriage. In the periodontitis group, 60.5%, and in the periodontosis group 61.5% of patients carried viruses, while this was established only in 21.1% of control cases. On the other hand, emigration and sulcular gathering of the less viable polymorphonuclear leukocytes was elevated but their phagocytotic activity was decreased among periodontitis patients. Bactericidal capacity was significantly lowered among those subjects who carried viruses in their cells, as compared with virus-free persons, especially in the periodontitis group. The functions of the polymorphonuclear leukocytes accumulated in the sulcus gingivalis may be modified by mediators released from the virus-carrying cells. These mediators could achieve a greater concentration locally, and the damaged leukocytes would not be able to eliminate the microbes continuously so that the accumulation of bacterial products, among them endotoxins, could lead to periodontal inflammation.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Ongrádi J,Sallay K,Kulcsár Gdoi
10.1007/BF02887577subject
Has Abstractpub_date
1987-01-01 00:00:00pages
438-47issue
5eissn
0015-5632issn
1874-9356journal_volume
32pub_type
杂志文章abstract::Glutamate was converted to glutamine by Corynebacterium glutamicum permeabilized by ethanol (10%). ATP was supplied to the reaction by dried Saccharomyces cerevisiae or regenerated by acetyl kinase. High glutamine synthetase activity in C. glutamicum was induced by cultivation of the microorganism in media containing ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02816248
更新日期:1999-01-01 00:00:00
abstract::A proteus strain inhibited mycelial growth of Fusarium oxysporum in vitro. Seed bacterization showed significant plant growth promotion and Fusarium-wilt suppression activity of Phaseolus mungo in a gnotobiotic system. The culture filtrate of this strain exhibited three prominent bands in UV-VIS spectra between 300 an...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02818723
更新日期:2000-01-01 00:00:00
abstract::We report the complete nucleotide sequence and characterization of a small cryptic plasmid of Moraxella macacae 0408225, a newly described bacterial species within the family Moraxellaceae and a causative agent of epistaxis in macaques. The complete nucleotide sequence of the plasmid pMoma1 was determined and found to...
journal_title:Folia microbiologica
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更新日期:2015-05-01 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
pub_type: 杂志文章
doi:10.1007/BF02817448
更新日期:2000-01-01 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::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::The submerged culture of the Claviceps purpurea strain studied was polymorphous. In the process of alkaloid synthesis, cytodifferentiation preceded biochemical differentiation. The onset of the alkaloid phase was characterized by: predominance of chlamydospores in the culture, the presence of vegetative cells with red...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02876766
更新日期:1975-01-01 00:00:00
abstract::Oxidizing and assimilating ability of the yeast Candida utilis 49 was tested with 21 different low-boiling organic compounds which come as components of raw synthetic ethanol. The highest yields of yeast dry weight were obtained with ethanol (72.0%), propanol (48.2%), ethyl acetate (43.4%) and acetic acid (34.2%). To ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02876965
更新日期:1976-01-01 00:00:00
abstract::The present study was designed to characterize six Trueperella (T.) abortisuis strains, cultured over a period of 5 months from fetus and abortion material of six pigs of a single farm in Mecklenburg-West Pomerania federal state, Germany. It was of interest to investigate the epidemiological relationships of the six s...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/s12223-019-00753-9
更新日期:2020-06-01 00:00:00
abstract::The rosettes formed by mouse peritoneal macrophages or DCH-5 cells and TNP-erythrocytes coated with anti-TNP antibodies of different isotypes were inhibited to various extent by monosaccharides. The most effective inhibitors were N-acetylglucosamine, glucosamine, mannose and N-acetylneuraminic acid in 1-5 mmol/L conce...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02814584
更新日期:1992-01-01 00:00:00
abstract::Overpopulation of domestic pigeons is considered to be one of the major problems of urban centers, as these birds are responsible for the dissemination of relevant pathogens to animal and human health. The aim of this study was to detect potentially pathogenic Escherichia coli and Salmonella spp. in domestic pigeons c...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/s12223-020-00781-w
更新日期:2020-08-01 00:00:00
abstract::The aim of this study was to determine the prevalence of Listeria sp. and Listeria monocytogenes in soil samples with reference to type of fertilizers (natural and artificial) and distance from places intensively exploited by men, as well as to determine the relationship between the presence of L. monocytogenes in the...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/s12223-013-0260-8
更新日期:2014-01-01 00:00:00
abstract::The structural gene coding for YompC has been identified in the genome of a pathogenic strain of Yersinia enterocolitica O:9, and was subsequently cloned and sequenced. Detailed alignment of the deduced amino acid sequence showed that YompC is a member of the OmpC porin family with the highest degree of homology to Kl...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02932142
更新日期:2007-01-01 00:00:00
abstract::The potentiality of twenty-five fungal species belonging to 14 genera isolated from Egyptian soils to produce mevinolin, a hypocholesterolemic agent, when grown on selected substrates was tested. For the first screening samples of culture filtrates were tested by TLC and the positive results were further estimated by ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02826557
更新日期:1997-01-01 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::Bacillus subtilis strains expressing listeriolysin O (LLO) and simultaneously LLO and p60 protein were constructed. The effect of p60 protein on hemolytic activity and on the invasion of professional phagocytes was demonstrated in the absence of other virulence factors of L. monocytogenes. The hemolytic activity of LL...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931440
更新日期:2005-01-01 00:00:00
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 ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02928007
更新日期:1988-01-01 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::Lengths of permuted regions in the P22 and L phage genomes were estimated from the relative yields of DNA in many electrophoretic bands obtained using several restriction endonucleases. It was found that 3.6 kb (8.7%) of P22-DNA and 7.2 kb (17.8%) of L-DNA were circularly permuted. In both phages the sequential packag...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02933145
更新日期:1992-01-01 00:00:00
abstract::The resistance to killing by free radicals of two mutants ofPhaffia rhodozyma was determined. Mutant 5-7 did not produce astaxanthin but produced beta-carotene, while mutant 3-4 did not produce any carotenoid pigments. The resistance of mutant 5-7 was the same as that of the wild type but mutant 3-4 was rapidly killed...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02816505
更新日期:1998-01-01 00:00:00
abstract::In yeast, the STB5 gene encodes a transcriptional factor belonging to binuclear cluster class (Zn2Cys6) of transcriptional regulators specific to ascomycetes. In this study, we prepared the Kluyveromyces lactis stb5Δ strain and assessed its responses to different stresses. We showed that KlSTB5 gene is able to complem...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/s12223-019-00682-7
更新日期:2019-07-01 00:00:00
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
pub_type: 杂志文章
doi:10.1007/BF02876611
更新日期:1980-01-01 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::NaN3 was found to inhibit transformation but not the irreversible binding of donor 3H-DNA in competent cells of the original low-transformable strain Bacillus subtilis 168 trp2. Addition of NaN3 to cells of two mutants Bacillus subtilis HT39 and HT46 with an increased transformability decreased substantially the irrev...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02877669
更新日期:1977-01-01 00:00:00
abstract::The activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSP) as well as of succinate dehydrogenase (SDG), NADH dehydrogenase (NDG) and fumarate hydratase (FHT) were examined in relation to mitochondrial ultrastructure changes in Aspergillus niger exposed to N,N-bis(3-aminopropyl)dodecy...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931448
更新日期:2006-01-01 00:00:00
abstract::Murine herpesvirus 68 (MHV-68) is a natural pathogen that infects murid rodents, which serves as hosts for Ixodes ricinus ticks. For the first time, MHV-68 was detected in immature I. ricinus ticks feeding on Lacerta viridis lizards trapped in Slovakia, which supports the idea that ticks can acquire the virus from fee...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/s12223-018-0586-3
更新日期:2018-07-01 00:00:00
abstract::Resistance determinants for HgCl2 and CdCl2 were eliminated along with a number of antibiotic resistance factors from Acinetobacter lwoffi and Micrococcus sp. at 44 degrees C. These organisms were orginally resistant to HgCl2, merbromin, CdCl2, Pb(NO3)2, benzylpenicillin, erythromycin, carbenicillin, tetracycline and ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02925907
更新日期:1988-01-01 00:00:00
abstract::As a part of a program to develop starter cultures aiding in the spoilage control and sanitation of African fermented foods, a cereal-based food ('ogi' and its solid form 'agidi' or 'eko') was prepared using a bacteriocin-producing Lactobacillus strain as the starter culture. The survival of an enterotoxigenic Escheri...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02898642
更新日期:1997-01-01 00:00:00
abstract::Strains of fungi imperfecti of genera Aspergillus and Rhizopus were tested for the ability to produce alpha-mannosidases. The most suitable alpha-mannosidase producer of a total of 20 strains under study was Aspergillus Ravus Link 69. The parameters studied during the cultivation included the growth rate expressed as ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02876433
更新日期:1978-01-01 00:00:00
abstract::One hundred clinical isolates of Pseudomonas aeruginosa were checked for their sensitivity towards silver nitrate. Majority of the isolates were resistant at 20 mg/L and the resistance decreased with increasing concentration of silver nitrate, only 5% of the organisms showed resistance above 70 mg/L. These silver-resi...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02820752
更新日期:1989-01-01 00:00:00