Abstract：
:Streptomyces caelestis DSM 40084 produces two osmolytes, viz. 2-O-(alpha-D-glucopyranosyl)-zeta-glyceric acid (GG) and trehalose. Both compounds were isolated and identified by nuclear magnetic resonance spectroscopy and mass spectrometry. A very sensitive regulation of the cell osmolytes was demonstrated in exponentially growing cultures. The intracellular levels of GG and trehalose increased 2x in response to a step change of medium osmolarity caused by 0.3% NaCl. 1H NMR analysis of the cell extracts did not confirm the presence of additional osmolytes. GG is a S. caelestis metabolite commonly released from the cells; its concentration reached 3 g/L during the cultivation in a yeast extract--(NH4)2SO4-glycerol medium. This is the first report on the occurrence of the ionic osmolyte GG in the genus Streptomyces and on its free excretion to the medium.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Pospísl S,Halada P,Petrícek M,Sedmera Pdoi
10.1007/BF02932103subject
Has Abstractpub_date
2007-01-01 00:00:00pages
451-6issue
5eissn
0015-5632issn
1874-9356journal_volume
52pub_type
杂志文章abstract：:Dithiocarbamates were found to enhance the production of citric acid under solid-state fermentation conditions by Aspergillus niger. Maximum increase was observed with tetramethylthiuram disulfide (TMTD). Percent increases observed were 74.2% with 2.5 micrograms/mL of TMTD, 19.6% with 2.5 micrograms/mL of sodium dimet...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02926953
更新日期：1986-01-01 00:00:00
abstract：:Strains of Rhodospordium torloides produced two peptides into the culture filtrate. Peptide I contained 6 amino acids and peptide II contained 5 amino acids. The peptides however, are, not homologous to the alpha-factor, and become assimilated at a later phase of growth. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876614
更新日期：1980-01-01 00:00:00
abstract：:The survival of Herbaspirillum spp. cells added directly or encapsulated in alginate beads and colonization of wheat roots was evaluated in soil microcosms. Cells entrapped in alginate in the presence of JNFb-broth and introduced into unplanted non-sterile clay loamy and sandy soils survived better than cells added di...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02825879
更新日期：2001-01-01 00:00:00
abstract：:Rumen ciliate protozoa intensively engulf bacteria. However, their ability to utilize murein which is the main polysaccharide of bacterial cell wall has hardly been recognized. The present study concerns the ability of the rumen protozoa Diploplastron affine to digest and ferment murein. The ciliates were isolated fro...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-010-0047-0
更新日期：2010-07-01 00:00:00
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 restorat...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02875957
更新日期：1984-01-01 00:00:00
abstract：:Candidiases, infections caused by germination forms of the Candida fungus, represent a heterogeneous group of diseases from systemic infection, through mucocutaneous form, to vulvovaginal form. Although caused by one organism, each form is controlled by distinct host immune mechanisms. Phagocytosis by polymorphonuclea...
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/BF02931313
更新日期：2007-01-01 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：: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：: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
pub_type： 杂志文章
doi：10.1007/s12223-010-0101-y
更新日期：2010-11-01 00:00:00
abstract：:Numerous antibodies with a known mechanism of action are utilized as possible means for studying morphogenesis and differentiation. Inhibitors of biosynthesis of nucleic acids and proteins, compounds intervening with the synthesis and/or function of cell walls and membranes or compounds influencing the energy metaboli...
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/BF02897219
更新日期：1980-01-01 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：:The regulation of gene transcription allows yeast cells to respond properly to changing environmental conditions. Several protein complexes take part in this process. They involve RNA polymerase complexes, chromatin remodeling complexes, mediators, general transcription factors and specific transcriptional regulators....
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/s12223-008-0044-8
更新日期：2008-01-01 00:00:00
abstract：:Ovine and caprine scrapie occupies a unique place among animal transmissive spongiform encephalopathies (TSE). It is an object of intensive biomedicinal, ecological and economical studies. Its causative agents are demonstrably associated with the development of TSE in farmed minks, goats and moufflons. Ovine strains o...
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/BF02818713
更新日期：2000-01-01 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：:Small plasmid pKST23 was isolated from sheep ruminal Escherichia coli population. Plasmid sequence was determined to be 2,779 bp in length and was found to have an overall 42 % of GC pairs. However, its sequence can be divided into two regions based on genetic composition and the GC content. It was found that the high...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-012-0124-7
更新日期：2012-07-01 00:00:00
abstract：:A naturally deficient thiamine and methionine requiring strain of Bacillus coagulans (Ms 5) accumulates lysine in medium only when exogenous pyridoxine (optimal concentration, 0.1 mu g/ml) are supplied. Threonine exerts an inhibitory effect at higher concentrations but pyridoxine does not. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02877085
更新日期：1975-01-01 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：: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
pub_type： 杂志文章
doi：10.1007/s12223-018-0592-5
更新日期：2018-07-01 00:00:00
abstract：:Euglena ignobilis cells in natural puddle water of pH 7.8, when kept at 21 +/- 2 degrees C and under continuous light (intensity of approximately 30 micromol m(-2) s(-1)) in a culture chamber, decreased their speed of movement from > or = 78000 microm/min (after a 12-h cultivation), to 850-1300 microm/min after 18 h. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02931412
更新日期：2005-01-01 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：:Human immunodeficiency virus type 1 (HIV-1) viral protein R (Vpr) exerts multiple effects on viral and host cellular activities during infection, including induction of the cell cycle G2 arrest, and cell death in both human cells and the fission yeast Schizosaccharomyces pombe. We show that treament of exponential-pha...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02931584
更新日期：2006-01-01 00:00:00
abstract：:Strains ofRhodotorula sp.,Candida spp. andLangermania sp. cultivated on polyunsaturated oil preferentially incorporated more unsaturated fatty acids. These fatty acids were used mainly for growth needs whereas the saturated ones accumulated in the microbial cell. The cellular oil and the remaining oil in the culture h...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02898718
更新日期：1997-04-01 00:00:00
abstract：:The color of light (white, red, blue, and green) had a significant effect on the growth and reproductive processes (both in the nucleocytoplasmic and chloroplast compartment of the cells) in synchronous cultures of Scenedesmus obliquus. This effect decreased in the order red > white > blue > green. In the same order, ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02931828
更新日期：2006-01-01 00:00:00
abstract：:Bifidobacteria (246 strains in total) were isolated from rectal samples of infants and adult humans and animals, and from intestinal samples of calves. Twenty-five strains grew well on mucin: 20 from infants, two from adults, and three from goatlings. Poor or no growth on mucin was observed in 156 bifidobacterial stra...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-011-0022-4
更新日期：2011-03-01 00:00:00
abstract：:Two classes of newly synthesized amphiphilic compounds, phenolic antioxidants ("phenolics") and N-oxides exert in vivo antioxidant effects on live S. cerevisiae cells. Both groups have low toxicity, phenolics being more toxic than N-oxides and compounds with a longer alkyl chain having higher toxicity than those with ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02932187
更新日期：2007-01-01 00:00:00
abstract：:The reserves of fossil-based fuels, which currently seem sufficient to meet the global demands, is inevitably on the verge of exhaustion. Contemporary raw material for alternate fuel like biodiesel is usually edible plant commodity oils, whose increasing public consumption rate raises the need of finding a non-edible ...
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/s12223-018-0602-7
更新日期：2018-09-01 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：: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：: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
pub_type： 杂志文章,评审
doi：10.1007/BF02818608
更新日期：1998-01-01 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
pub_type： 杂志文章
doi：10.1007/BF02876698
更新日期：1980-01-01 00:00:00
