Abstract：
:With human saliva as an inoculum, microcosm dental plaques were grown on dental amalgam in a constant-depth film fermentor (CDFF) in the presence (suc +ve) and absence (suc -ve) of sucrose. The biofilms were then exposed to 0.2% chlorhexidine gluconate (CHG) for 1, 5, or 60 min and the survivors enumerated. Suc +ve biofilms had higher proportions of streptococci but lower proportions of veillonellae than suc -ve biofilms. Exposure to CHG for 1 min reduced the viable count of suc -ve and suc +ve biofilms by 53% and 89% respectively. In both cases, reductions were mainly attributable to killing of streptococci and actinomyces. After 60 min of exposure, 4% of the bacteria in the suc -ve and 2% in the suc +ve biofilms remained viable. This study has shown that large numbers of bacteria in microcosm dental plaques can survive a 1-min exposure to 0.2% CHG and that even after a 60-min exposure, substantial numbers of bacteria remain viable.
journal_name
Curr Microbioljournal_title
Current microbiologyauthors
Wilson M,Patel H,Noar JHdoi
10.1007/s002849900272subject
Has Abstractpub_date
1998-01-01 00:00:00pages
13-8issue
1eissn
0343-8651issn
1432-0991journal_volume
36pub_type
杂志文章abstract：:This study was undertaken to identify exopolysaccharide-producing bacteria gathered from 18 hypersaline habitats. Phenotypic studies performed with 134 isolates revealed the majority of them to be Gram-negative rods with respiratory metabolism, belonging to the genus Halomonas. A numerical analysis of the 114 phenotyp...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-003-4208-0
更新日期：2004-05-01 00:00:00
abstract：:Culture-based analysis was employed in parallel with PCR amplification of 16S rDNA, coupled with denaturing gradient gel electrophoresis (DGGE), to profile bacterial species associated with different developmental stages of the pine false webworm (PFW), Acantholyda erythrocephala, a sawfly pest responsible for inciden...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-008-9243-4
更新日期：2008-12-01 00:00:00
abstract：:Together with the worldwide Washoku (traditional Japanese foods and drinks) boom, interest in sake, a traditional Japanese alcoholic drink, is increasing around the world. There are few scientific analyses and studies on the production of sake or the final product itself. We show the diversity of bacterial contaminant...
journal_title：Current microbiology
pub_type： 杂志文章,评审
doi：10.1007/s00284-019-01718-4
更新日期：2020-04-01 00:00:00
abstract：:Multi-drug resistance and transfer of mobile genetic elements among enteric pathogens is being reported to have increased rapidly. Commensal Escherichia coli was previously known to acquire mobile genetic elements from other genus/species. E. coli is also capable of disseminating these elements containing antimicrobia...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-019-01676-x
更新日期：2019-06-01 00:00:00
abstract：:Pseudomonas fluorescens is a physiologically diverse species of bacteria present in many habitats, which possesses multifunctional traits that provide it with the capability to exhibit biological control activities, promote plant health or cause plant disease. Here, we present the draft genome sequence of the kiwifrui...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-019-01655-2
更新日期：2019-05-01 00:00:00
abstract：:In the present work, we provide biological evidences supporting the participation of NCW2 gene in the mechanism responsible for cell tolerance to polyhexamethylene biguanide (PHMB), an antifungal agent. The growth rate of yeast cells exposed to this agent was significantly reduced in ∆ncw2 strain and the mRNA levels o...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-016-1067-z
更新日期：2016-09-01 00:00:00
abstract：:This study was taken up with a view to generate basic information on spore hardiness to ethanol in various Bacillus species and related genera, and to assess the effectiveness of different levels of ethanol as a bacterial disinfectant. Predominantly spore-bearing cultures of five Bacillus spp. (B. pumilus, B. subtilis...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-011-0040-0
更新日期：2012-02-01 00:00:00
abstract：:The citric acid-producing fungus Aspergillus niger WU-2223L possesses a cyanide-insensitive respiratory pathway catalyzed by alternative oxidase. The regulation of the alternative oxidase under the conditions of citric acid production was determined from the transcription level of the alternative oxidase gene (aox1). ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-009-9369-z
更新日期：2009-04-01 00:00:00
abstract：:Genes encoding enzymes that catalyze butyryl-CoA formation from acetyl-CoA in a type II strain of Butyrivibrio fibrisolvens were analyzed. The genes encoding thiolase, beta-hydroxybutyryl-CoA dehydrogenase, butyryl-CoA dehydrogenase, and electron transfer flavoproteins were clustered, but the crotonase gene was not pr...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-002-3976-2
更新日期：2003-09-01 00:00:00
abstract：:PHA is one of the leading commercially important bio-polyesteric compounds piled up as an intracellular lipid-based energy storage compound by numerous microorganisms. An indigenous Gram-positive bacterium isolated from fire ant (Solenopsis invicta) has known to potentially accumulate PHA. Various nutritional elements...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-020-02221-x
更新日期：2020-12-01 00:00:00
abstract：:Pantoea beijingensis, a gram-negative pathogenic bacterium, causes soft rot disease in the fungus Pleurotus eryngii in China. However, the taxonomic classification of this pathogen is controversial due to close relationships between bacteria of the genera Pantoea and Erwinia. This study aimed to resolve the identity o...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-020-02253-3
更新日期：2021-01-01 00:00:00
abstract：:A moderately psychrophilic bacterium Corynebacterium paurometabolum MTCC 6841 (gram positive, short rod type) producing extracellular alkaline lipase was isolated from Lake Naukuchiatal, Uttaranchal, India. The bacterium was able to grow within a broad range of pH (5-10). Soyabean oil and olive oil served as the best ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-005-0224-6
更新日期：2006-05-01 00:00:00
abstract：:A thermophilic bacterial strain GXN151 which could degrade Avicel efficiently was isolated and identified as Bacillus licheniformis. A genomic library of GXN151 was constructed and two novel endoglucanase genes designated cel9A and cel12A were isolated by screening the library on carboxylmethyl cellulase indicator pla...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-004-4291-x
更新日期：2004-10-01 00:00:00
abstract：:The dimorphic yeast Yarrowia lipolytica has become an emerging cell factory for recombinant proteins production. Expression vectors involving LIP2 promoter (pLIP2) have been developed and used successfully. However, the relationship between dimorphic transition (i.e., cell morphology) and pLIP2 regulation is still unc...
journal_title：Current microbiology
pub_type： 信件
doi：10.1007/s00284-017-1207-0
更新日期：2017-03-01 00:00:00
abstract：:Although neutral mine drainage is the less frequent subject of the interest than acid mine drainage, it can have adverse environmental effects caused mainly by precipitation of dissolved Fe. The aim of the study was to characterize the composition of bacterial population in environment with high concentration of iron ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-018-1472-6
更新日期：2018-08-01 00:00:00
abstract：:Polyclonal antibodies against Escherichia coli and fluorescent, secondary, antibodies were immobilized on borosilicate glass fibers pre-treated with 3-glycidyloxypropyl trimethoxysilane (GPS). Light with an average wavelength of 627 nm, emitted by a diode placed at one end of the glass fiber, was detected by an ultras...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-017-1359-y
更新日期：2018-02-01 00:00:00
abstract：:Low-substrate regulated microaerophilic behavior (LSRMB) was observed in 10-54% of the bacteria isolated from several fresh-water lakes or ponds, subsurface soils, activated sludge, and Antarctic dry valley soils. Five Pseudomonas and two Bacillus type species showed LSRMB. A subsurface Pseudomonas jessenii strain was...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002840010097
更新日期：2000-08-01 00:00:00
abstract：:The facultative anaerobe Pantoea sp. strain A-13, isolated from ornithogenic soil of Dewart Island (Frazier Islands), Antarctica, produced glycolipid biosurfactants when grown on n-paraffins or kerosene as the sole source of carbon and energy. Hemolysis of erythrocytes, growth inhibition of Bacillus subtilis, and thin...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-006-0345-6
更新日期：2007-02-01 00:00:00
abstract：:Pathogens have evolved an array of strategies to establish a productive infection. The extracellular proteins secreted by pathogens are one of unique mechanisms to evade the host innate immune response. Many secretory proteins transported by the bacterial secretion systems have been widely investigated in Salmonella. ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-020-02201-1
更新日期：2020-11-01 00:00:00
abstract：:The effect of disodium fumarate (DF) on the ruminal fermentation profiles, the accumulation of lipopolysaccharide (LPS) and bioamines, and the composition of the ruminal bacterial community was investigated by in vitro rumen fermentation. The addition of DF increased the total gas production; the concentrations of pro...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-017-1322-y
更新日期：2017-11-01 00:00:00
abstract：:The process ofBeggiatoa trichome division was elucidated through phase-contrast microscopy and transmission and scanning electron microscopy. Trichome breakage and dispersion is accomplished by the formation of sacrificial cells (necridia) at various points within the trichome. Upon dying, the sacrificial cells lyse, ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/BF02601668
更新日期：1978-01-01 00:00:00
abstract：:Nitric oxide synthase (NOS), the enzyme responsible for the production of endogenous nitric oxide from arginine, has been recently discovered in a number of Gram-positive bacteria. While bacterial NOS has been implicated in mediating nitrosative stress, much remains unknown about the functional role of endogenous nitr...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-011-0039-6
更新日期：2012-02-01 00:00:00
abstract：:Physiological alterations and regulation of heterocyst and nitrogenase formation have been studied in Het(-) Fix(-) mutant strain of diazotrophic cyanobacterium Anabaena variabilis. Het(-) Fix(-) mutant strain of A. variabilis has been isolated by N-methyl-N'-nitro-N"-nitrosoguanidine (NTG) mutagenesis and was screene...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-002-3756-z
更新日期：2002-11-01 00:00:00
abstract：:Six cyanobacterial isolates recovered from Polynesian microbial mats, called "kopara," were cultured using laboratory-closed photobioreactors and were shown to produce exopolymers as released and capsular exopolysaccharides (EPS). These polymers have been chemically characterized using colorimetric and elemental assay...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-005-0069-z
更新日期：2005-12-01 00:00:00
abstract：:Actinomycetes are a wide group of Gram positive prokaryotes, the soil being their most characteristic habitat, where they play important ecological functions. Their immense biotechnological potential as producers of bioactive molecules of great commercial and industrial interest is exemplified by most antibiotics for ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-020-02030-2
更新日期：2020-09-01 00:00:00
abstract：:Vanillin is undoubtedly one of the most popular and widely used flavoring agents in the world. Taking into consideration the worldwide demand for natural vanillin and its limited supply, alternative routes for its production including biotransformation are being constantly explored. In this regard, a novel soil bacter...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-006-0627-z
更新日期：2007-06-01 00:00:00
abstract：:A bacterium designated strain B113, able to degrade benzene, toluene, and ethylbenzene compounds (BTE), was isolated from gasoline-contaminated sediment at a gas station in Geoje, Korea. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate belonged to the genus Acinetobacter. The biodegradati...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-008-9268-8
更新日期：2009-01-01 00:00:00
abstract：:A gene argH, encoding argininosuccinate lyase (ASL), has been cloned from a cosmid library of the filamentous cyanobacterium Nostoc sp. strain PCC 73102. The argH open reading frame encodes a protein comprised of 461 amino acids with a calculated molecular mass of 51,349 Da. Protein sequence comparisons reveal signifi...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002840010298
更新日期：2001-10-01 00:00:00
abstract：:PCR has been widely used to identify cry-type genes, to determine their distribution, to detect new such genes and to predict insecticidal activities. We describe here a molecular approach to analyze the genetic diversity of B. thuringiensis cry-like genes based on denaturing gradient gel electrophoresis (DGGE). This ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-010-9776-1
更新日期：2011-03-01 00:00:00
abstract：:Legionella and amebae populations in 16 cooling towers were challenged with three commercially available biocide formulations. The active agents were: a chlorinated phenolic thioether (CPTE), bromo-nitro-propane-diol (BNPD), and bromo-chloro-dimethylhydantoin (BCD, in briquette form). The towers were dosed with these ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/BF00296203
更新日期：1995-03-01 00:00:00
