Abstract：
:Acinetobacter species remain alive in hospitals on various surfaces, both dry and moist, forming an important source of hospital infections. These bacteria are naturally resistant to many antibiotic classes. Although the role of the quorum sensing system in regulating the virulence factors of Acinetobacter species has not been fully elucidated, it has been reported that they play a role in bacterial biofilm formation. The biofilm formation helps them to survive under unfavorable growth conditions and antimicrobial treatments. It is based on the accumulation of bacterial communication signal molecules in the area. In this study, we compared the bacterial signal molecules of 50 nosocomial Acinetobacter baumannii strain and 20 A. baumannii strain isolated from soil. The signal molecules were detected by the biosensor bacteria (Chromobacterium violaceum 026, Agrobacterium tumefaciens A136, and Agrobacterium tumefaciens NTL1) and their separation was determined by thin-layer chromatography. As a result, it has been found that soil-borne isolates can produce 3-oxo-C8-AHL and C8-AHL, whereas nosocomial-derived isolates can produce long-chain signals such as C10-AHL, C12-AHL, C14-AHL and C16-AHL. According to these results, it is possible to understand that these signal molecules are found in the infection caused by A. baumannii. The inhibition of this signaling molecules in a communication could use to prevent multiple antibiotic resistance of these bacteria.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Erdönmez D,Rad AY,Aksöz Ndoi
10.1007/s00203-017-1408-8subject
Has Abstractpub_date
2017-12-01 00:00:00pages
1325-1334issue
10eissn
0302-8933issn
1432-072Xpii
10.1007/s00203-017-1408-8journal_volume
199pub_type
杂志文章abstract：:Methanobacterium thermoautotrophicum growing on H2 plus CO2 as sole carbon and energy source was found to contain acetate thiokinase (Acetyl CoA synthetase; EC 6.2.1.1); Acetate + ATP + CoA leads to Acetyl CoA + AMP + PPi. The apparent Km value for acetate was 40 microM. Acetate kinase (EC 2.7.2.1) and phosphotransace...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00406167
更新日期：1980-12-01 00:00:00
abstract：:Expression of the gene encoding ribosome modulation factor (RMF), as measured using an rmf-lacZ gene fusion, increased with decreasing pH in exponential phase cultures of Escherichia coli. Expression was inversely proportional to the growth rate and independent of the acidifying agent used and it was concluded that ex...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-005-0025-0
更新日期：2005-10-01 00:00:00
abstract：:To identify virulence-associated genes of a fish pathogen Yersinia ruckeri, we screened a total of 1056 mini-Tn5-Km2 signature-tagged mutants in rainbow trout by immersion challenge. Of 1056, 25 mutants were found survival-defective as they could not be re-isolated from fish kidney 7 days after infection. Mutated gene...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-010-0582-8
更新日期：2010-07-01 00:00:00
abstract：:The regulatory elements involved in expression of the gene (fdhF) for the selenopolypeptide of formate dehydrogenase and of a gene (or transcriptional unit) (hyd) specifically responsible for the formation of the gas-evolving hydrogenase (hydrogenase 3) in Escherichia coli were investigated. Formate (or a product of i...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00429646
更新日期：1987-06-01 00:00:00
abstract：:The mutagenic activity of ethyl acetate extracts of culture medium from Cunninghamella elegans incubated 72 h with various polycyclic aromatic hydrocarbons (PAHs) was evaluated in the Salmonella typhimurium reversion assay. All of the PAH extracts were assayed in tester strains TA98 and TA100 both with and without met...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00411031
更新日期：1985-11-01 00:00:00
abstract：:Rhizopus oryzae has long been used for enzyme production (e.g., glucoamylase and lipase), organic acid synthesis, and various fermented food applications. In this work, we describe a set of plasmid-based expression vectors that can be used for the production of heterologous proteins in R. oryzae. Three plasmid vectors...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-006-0121-9
更新日期：2006-07-01 00:00:00
abstract：:Serine (Ser)/threonine (Thr) or tyrosine (Tyr) protein kinases in eukaryotes contain RDxKxxN or RDx(A/R)A(A/R)N sequences, respectively, in the catalytic loop. Myxococcus xanthus DspB is a dual-specificity kinase that contains an atypical sequence, RDVAQKN, in the catalytic loop. The DspB mutant (A165K), which contain...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-015-1181-5
更新日期：2016-04-01 00:00:00
abstract：:Oxalobacter formigenes (O. formigenes) is a nonpathogenic, Gram-negative, obligate anaerobic bacterium that commonly inhabits the human gut and degrades oxalate as its major energy and carbon source. Results from a case-controlled study suggested that lack of O. formigenes colonization is a risk factor for recurrent c...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-016-1272-y
更新日期：2016-12-01 00:00:00
abstract：:A Gram reaction-negative, strictly aerobic, non-motile, translucent and rod-shaped bacterium (designated W1-2-4(T)) isolated from tap water was characterized by a polyphasic approach to clarify its taxonomic position. Strain W1-2-4(T) was observed to grow optimally at 25-30 °C and at pH 6.5 on nutrient agar. Phylogene...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-016-1237-1
更新日期：2016-10-01 00:00:00
abstract：:Pulicat Lake sediments are often severely polluted with the toxic heavy metal mercury. Several mercury-resistant strains of Bacillus species were isolated from the sediments and all the isolates exhibited broad spectrum resistance (resistance to both organic and inorganic mercuric compounds). Plasmid curing assay show...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-006-0088-6
更新日期：2006-04-01 00:00:00
abstract：:Utilization of D-amino acids being substrates of D-amino acid dehydrogenase of Salmonella typhimurium was examined. The experiments were done with wild type strains and the mutants dadA missing the enzyme activity and dadR in which its synthesis is released from catabolite repression. Growth on D-tryptophan, D-histidi...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00406077
更新日期：1978-07-01 00:00:00
abstract：:Diamino butanone (DAB), a competitive inhibitor of ornithine decarboxylase (ODC) a key enzyme in polyamine biosynthesis, inhibited the yeast to hyphae transition in Mucor rouxii, induced by transfer from anaerobiosis to aerobiosis, but not the opposite phenomenon. Addition of DAB to anaerobic yeast cells brought about...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00444661
更新日期：1989-01-01 00:00:00
abstract：:Xanthomonas oryzae pv. oryzae causes bacterial leaf blight, one of the most widespread and destructive bacterial diseases in rice. This study identified and characterized the contribution of the twin-arginine translocation (Tat) pathway to motility, chemotaxis, extracellular polysaccharide (EPS) production and virulen...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-008-0440-0
更新日期：2009-02-01 00:00:00
abstract：:The carboxysomal polypeptides of Thiobacillus neapolitanus with apparent molecular masses of 85 and 130 kDa were isolated and subjected to N-terminal sequencing. The first 17 amino acids of the two peptides were identical. The sequence perfectly matched the deduced amino acid sequence of an open reading frame in the c...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030050765
更新日期：1999-10-01 00:00:00
abstract：:Peptidoglycan of Corynebacterium species Co 112 (DSM 20606) exhibits an unknown amino acid. The amino acid was isolated from cell wall hydrolysates and identified as threo-beta-hydroxyornithine. This amino acid is found in the interpeptide bridge of the peptidoglycan of Corynebacterium sp. Co 112. The primary structur...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00407766
更新日期：1983-06-01 00:00:00
abstract：:The mitochondrial genome (mtDNA) of the entomopathogenic fungus Metarhizium anisopliae var. anisopliae, with a total size of 24,673 bp, was one of the smallest known mtDNAs of Pezizomycotina. It contained the 14 typical genes coding for proteins related to oxidative phosphorylation, the two rRNA genes, a single intron...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-006-0104-x
更新日期：2006-06-01 00:00:00
abstract：:In autotrophic methanogens, pyruvate oxidoreductase (POR) plays a key role in the assimilation of CO(2) and the biosynthesis of organic carbon. This enzyme has been purified to homogeneity, and the genes from Methanococcus maripaludis were sequenced. The purified POR contained five polypeptides with molecular masses o...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-003-0554-3
更新日期：2003-06-01 00:00:00
abstract：:A thermostable homodimeric isocitrate dehydrogenase from the hyperthermophilic sulfate-reducing archaeon Archaeoglobus fulgidus was purified and characterized. The mol. mass of the isocitrate dehydrogenase subunit was 42 kDa as determined by SDS-PAGE. Following separation by SDS-PAGE, A. fulgidus isocitrate dehydrogen...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030050516
更新日期：1997-11-01 00:00:00
abstract：:In this study, two quorum sensing (QS) system genes, las and rhI; N-3-oxo-dodecanoyl homoserine lactone (AHL; 3-O-C12-HSL); and QS-related virulence factors and correlation between them were assessed in 30 fish origin P. aeruginosa isolates. The detection of two QS system of the isolates, and eight gene regions consis...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-020-02159-5
更新日期：2021-01-04 00:00:00
abstract：:The marine bacterium Vibrio psychoerythrus, an obligate psychrophile, contains uniformly dense rod-shaped organelles 10-15 nm wide and up to 1.3 mum long. These structures were frequently seen crossing the septum of dividing cells. ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00427869
更新日期：1976-02-01 00:00:00
abstract：:A Gram-staining-negative, non-spore-forming, non-flagellated, rod-shaped, catalase- and oxidase-negative bacterium, designated as Gsoil 193(T), was isolated from the soil of ginseng field in Pocheon province, South Korea. 16S rRNA gene sequence analysis showed that strain Gsoil 193(T) belonged to family Xanthomonadace...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-016-1214-8
更新日期：2016-08-01 00:00:00
abstract：:It has been shown previously that externally added glycine betaine is accumulated in Escherichia coli in response to the external osmotic strength. Here we have shown, by using nuclear magnetic resonance spectroscopy and radiochemical methods, that E. coli growing in a glucose-mineral medium of elevated osmotic streng...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00492896
更新日期：1987-02-01 00:00:00
abstract：:Respiratory NADH oxidation in the rumen bacterium Prevotella bryantii is catalyzed by the Na+-translocating NADH:quinone oxidoreductase (NQR). A method for cell disruption and membrane isolation of P. bryantii under anoxic conditions using the EmulisFlex-C3 homogenizer is described. We compared NQR activity and protei...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-019-01805-x
更新日期：2020-07-01 00:00:00
abstract：:The mechanism of lysis of Eubacterium alactolyticum cell walls by Streptomyces albus G enzyme was studied. The analysis of the peptide terminal groups and peptide subunits isolated from the cell wall digest, released during solubilization of the cell walls, revealed that lytic action of S. albus G enzyme was mainly du...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00406563
更新日期：1989-01-01 00:00:00
abstract：:Fructose transport was not apparently affected in a number of Pseudomonas putida strains with deranged activity of a common glucose-gluconate uptake system, indicating the existence of an independent fructose uptake system. Fructose uptake by glucose-gluconate uptake mutants was induced by fructose and obeyed saturati...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00428362
更新日期：1975-01-01 00:00:00
abstract：:An ammonia-oxidizing, autotroph growing, slender, curved rod was isolated from the soil of Hawaii. It is well distinguishable from any other nitrifying bacteria thus far described by their morphology. The cells are 1.1-3.0 mum long and 0.3-0.4 mum wide. They are motile by means of 1-4 subpolar to lateral flagella. In ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00425099
更新日期：1976-05-03 00:00:00
abstract：:The distribution of sex pheromone induced aggregation substance was studied on the cell surface of various Enterococcus faecalis strains. In the accompanying paper we have shown that the aggregation substance appears as a layer of hairlike structures. Using direct and indirect immunogold technique, transmission electr...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00454864
更新日期：1989-01-01 00:00:00
abstract：:A strain of Pseudomonas fluorescens was capable of co-metabolizing 3-chlorobenzoic acid with the production of a chlorinated catechol black pigment. A peroxidase and another enzymatic activity referred to as a polyphenol oxidase were found to be involved in the oxidation of 4-chlorocatechol to 4-chloro-1,2-benzoquinon...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00252220
更新日期：1993-01-01 00:00:00
abstract：:The thermotolerant methylotroph Bacillus sp. C1 possesses a novel NAD-dependent methanol dehydrogenase (MDH), with distinct structural and mechanistic properties. During growth on methanol and ethanol, MDH was responsible for the oxidation of both these substrates. MDH activity in cells grown on methanol or glucose wa...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00245161
更新日期：1992-01-01 00:00:00
abstract：:The role of the genomic bipyrimidine nucleotide frequency in pyrimidine dimer formation caused by germicidal UV radiation was studied in three microbial reference organisms (Escherichia coli K12, Deinococcus radiodurans R1, spores and cells of Bacillus subtilis 168). The sensitive HPLC tandem mass spectrometry assay w...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-010-0579-3
更新日期：2010-07-01 00:00:00
