Abstract:
:Sodium fluoride showed pH-dependent physiological responses in the two test microalgae Anabaena khannae and Chlorococcum humicola. A. khannae showed severe membrane damage with fluoride at low pH with leakage of pigments and electrolytes. Annihilation of photosynthesis along with inhibition in 14C uptake was observed at pH 6 with 50 mg/L fluoride. While respiration was less affected in the cyanobacterium, C. humicola showed 30 % inhibition in respiratory activity. Resistance of C. humicola to fluoride toxicity has been attributed to the hindrance provided by the thick cell envelope, intracellular compartmentation and increase in extracellular pH as a consequence of its metabolism.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Bhatnagar M,Bhatnagar Adoi
10.1007/BF02931045keywords:
subject
Has Abstractpub_date
2004-01-01 00:00:00pages
291-6issue
3eissn
0015-5632issn
1874-9356journal_volume
49pub_type
杂志文章abstract::Among 18 tested strains of Claviceps spp., 7 produced significant amounts of exocellular polysaccharide (EPS). The maximum production of EPS was found in fermentation broth of Claviceps viridis. The kinetics of growth, substrate consumption, and EPS production in the batch, aerobic, submerged culture of this fungus we...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02993470
更新日期:2003-01-01 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
pub_type: 杂志文章
doi:10.1007/BF02816335
更新日期:1996-01-01 00:00:00
abstract::Three methods were used for the isolation of fungi in the present investigation: the dilution-plate method, hair-baiting technique with horse hairs and the "exposed plate" method. Sabouraud's glucose agar at 28 degrees C was also used as isolation medium. 102 species and 2 species varieties belonging to 36 genera were...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02821282
更新日期:1990-01-01 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::Biochemical properties of a termostable alkaline phosphatase obtained from the mycelium extract of A. caespitosus were described. The enzyme was purified 42-fold with 32% recovery by DEAE-cellulose and concanavalin A-Sepharose chromatography. The molar mass estimated by Sephacryl S-200 or by 7% SDS-PAGE was 138 kDa an...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931303
更新日期:2007-01-01 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::Mice (strains Balb/c and A/J) received an intravenous infusion of bilirubin for a 1 d period. The infusion was delivered at various phases of the primary reaction; the degree of the immune response was expressed as the number of antibody-forming cells against sheep erythrocytes. Bilirubin infusion during both the indu...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02897214
更新日期:1980-01-01 00:00:00
abstract::Poly-gamma-L-glutamic acid was synthesized in optimized fermentor cultivation of Bacillus licheniformis. The polypeptide obtained was esterified using benzyl- and butylbromides. Benzyl esters with 30, 60 and 100% degree of esterification were prepared. Solubility of the products in dimethyl sulfoxide, chloroform, meth...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02818530
更新日期:2001-01-01 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
abstract::The prevalence of extended-spectrum beta-lactamases (ESBL) was determined among isolates of Escherichia coli (n = 63) isolated from hospitalized (43) and healthy (20) children. Ten isolates (21%) were ESBL-positive for two screening tests, the double disk-synergy test and the Oxoid Combination Disk method. One ESBL-po...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02930963
更新日期:2003-01-01 00:00:00
abstract::Ten thermophilic Gram-positive bacteria were isolated from various soils of Saudi Arabia. The strains are spore-forming rods belonging to the species Bacillus stearothermophilus. The cells are motile, strictly aerobic, catalase and oxidase positive. The sporangia appear to be swollen and their position varies from ter...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02927328
更新日期:1981-01-01 00:00:00
abstract::Sixty four biopsy specimens of oral Candida leukoplakias were examined. Histological sections were stained with periodic acid-Schiff (PAS) reagent and by Grocott's silver method. C. albicans isolates were cultivated from all the patients but fungal hyphae were proved histologically only in 23 of them. PAS-positive and...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02814437
更新日期:2001-01-01 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
pub_type: 杂志文章
doi:10.1007/BF02877345
更新日期:1980-01-01 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::Thirty-three fully breast-fed infants aged between 1 and 12 weeks were screened for bifidobacteria in feces. Bifidobacteria counts in most fecal samples determined both by TPY agar and FISH procedure ranged from 10(8) to 10(11) CFU/g. Three infants did not contain any bifidobacteria in their fecal samples. One child w...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931404
更新日期:2004-01-01 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::For the first time, it was reported in France a cluster of autochthonous severe community-acquired (CA) infections due to the USA300 methicillin-resistant Staphylococcus aureus (MRSA) clone. The three cases belonged to the same family without any identified clue of abroad importation pathway. The domestic spread of US...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/s12223-014-0322-6
更新日期:2014-11-01 00:00:00
abstract::Microorganisms in the midgut and rectum of the honeybee were enumerated and characterized. Counts of aerobic microorganisms were distinctly lower than counts of anaerobes (10(5)-10(6) viable cells per g of intestinal content vs. 10(8)-10(9) per g). Total numbers of anaerobic microorganisms were almost identical with t...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931394
更新日期:2004-01-01 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::Raoultella spp. representatives are Gram-negative capsulated, nonmotile rods. These bacteria are found in the natural environment: plants, water, soil and insects. R. ornithinolytica is one of the three species of Raoultella. R. ornithinolytica is the only species within the genus which has the ability to produce orni...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/s12223-015-0390-2
更新日期:2015-11-01 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
pub_type: 杂志文章
doi:10.1007/s12223-012-0138-1
更新日期:2012-07-01 00:00:00
abstract::Frequency of heterocytes and nitrogenase activity (NA) under light and dark cultivation conditions was determined in 12 cyanobacterial strains isolated from various soil habitats. In spite of a high variability, significant differences in NA among the strains were found in response of light and dark cultivation. Relat...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931606
更新日期:2004-01-01 00:00:00
abstract::The levels of anti-Candida antibodies were determined in experimental animals immunized with 4 different yeast doses (0.3, 0.6, 1.2, 2.4 x 10(8) CFU) at weekly intervals. After immunization (sampling intervals 1, 2, and 3 months), the intravenous blood was examined for the presence of serum anti-Candida antibodies. Af...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931340
更新日期:2003-01-01 00:00:00
abstract::A new simple method used to eliminate polysaccharides that cause problems during DNA isolation was established for 6 different white-rot fungi using 1% hexadecyltrimethylammonium bromide (CTAB) as wash buffer and followed by centrifugation. Variation in the DNA yield and quality was ascertained using precipitating age...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931383
更新日期:2004-01-01 00:00:00
abstract::White-rot fungi, Coriolus versicolor and Funalia trogii, produced laccase on media with diluted olive-oil mill wastewater and vinasse. Addition of spent cotton stalks enhanced the laccase activity with a maximum after 12 d of cultivation. ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02873591
更新日期:2001-01-01 00:00:00
abstract::A total of 20 putative strains of Erwinia amylovora originating from 11 samples of host plants with symptoms of fire blight were analyzed in detail using commercial polyclonal antibodies in immunochemical tests. Fourteen strains reacted negatively in all tests; 6 strains reacted positively with a polyclonal antibody f...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931569
更新日期:2005-01-01 00:00:00
abstract::A quarantine organism, "Candidatus Phytoplasma mali," is the causal agent of apple proliferation, one of the most important apple diseases in Europe. The genetic diversity of this pathogen in Central and Southern Europe has already been reported; however, almost no data exists from Eastern Europe. In this study, "Ca. ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/s12223-018-0660-x
更新日期:2019-05-01 00:00:00
abstract::The characterization of 11- and 18-residue peptaibols (peptides synthesized by peptide synthetases) at Trichoderma harzianum CECT 2413 (a filamentous fungus) was performed. Using a heterologous probe from tex1, the only peptaibol synthetase cloned and characterized so far in Trichoderma species, was cloned; a region t...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02932165
更新日期:2006-01-01 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::A group of sixteen esculin-positive fluorescent pseudomonads isolated from an underground brook flowing through a cave complex was characterized by biotyping, multiple enzyme restriction fragment length polymorphism analysis of 16S rDNA (MERFLP), ribotyping and whole-cell fatty-acid methyl-esters analysis (FAME). All ...
journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931556
更新日期:2004-01-01 00:00:00