Abstract:
:A standard material comprising a few viable cells of a microorganism is essential for rational validation of microbiological methods. We propose a method of a flow cytometric sorting of cells stained with 6-carboxyfluorescein diacetate. The feasibility of tryptic soy medium in this method is demonstrated with 5 strains.
journal_name
J Microbiol Methodsjournal_title
Journal of microbiological methodsauthors
Matsuoka H,Shigetomi T,Funabashi H,Saito M,Igimi Sdoi
10.1016/j.mimet.2013.01.021subject
Has Abstractpub_date
2013-04-01 00:00:00pages
49-51issue
1eissn
0167-7012issn
1872-8359pii
S0167-7012(13)00043-2journal_volume
93pub_type
杂志文章abstract::We developed and evaluated RNA aptamers to analyze their potential for use in detecting Salmonella Enteritidis. The selected aptamer was observed to specifically bind to Salmonella Enteritidis without any cross-reactivity to other Salmonella serovars. Thus, this study suggests that aptamers specific to Salmonella Ente...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2012.01.014
更新日期:2012-04-01 00:00:00
abstract::There is a paucity of knowledge on gene expression in dead bacterial cells. Why would this knowledge be useful? The cells are dead. However, the time duration of gene expression following cell death is often unknown, and possibly in the order of minutes. In addition, it is a challenge to determine if bacterial cells a...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2012.04.004
更新日期:2012-07-01 00:00:00
abstract::The Carba NP test was developed to detect carbapenemase-producing Enterobacteriaceae, and uses imipenem as the reaction substrate. In Japan, IMP-6 metallo-β-lactamase (MBL) producers, which are usually resistant to meropenem but susceptible to imipenem, and IMP-1 MBL producers, which are usually resistant to both carb...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2016.12.015
更新日期:2017-02-01 00:00:00
abstract::Counting colonies is usually used in microbiological analysis to assess if samples meet microbiological criteria. Although manual counting remains gold standard, the process is subjective, tedious, and time-consuming. Some developed automatic counting methods could save labors and time, but their results are easily af...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2018.09.004
更新日期:2018-10-01 00:00:00
abstract::A simple methodology based in a modified mosquito cage with a Petri dish containing culture medium was successfully used as an alternative method to the traditional digestive tract dissection protocol to collect bacteria from the feces of the mosquito Anopheles darlingi. ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2017.08.004
更新日期:2017-10-01 00:00:00
abstract::Recently we showed the applicability and sensitivity of the RNA-based sandwich hybridisation assay (SHA) for detection of gram-negative cells in environmental samples [Leskelä, T., Tilsala-Timisjärvi, A., Kusnetsov, J., Neubauer, P., Breitenstein, A., 2005. Sensitive genus-specific detection of Legionella by a 16S rRN...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2006.10.009
更新日期:2007-03-01 00:00:00
abstract::In recent years the global rise in antibiotic resistance and environmental consciousness lead to a renewed fervour to find and develop novel antibiotics, including antifungals. However, the influence of the environment on antifungal activity is often disregarded and many in vitro assays may cause the activity of certa...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2012.09.025
更新日期:2012-12-01 00:00:00
abstract::Evidence suggests that insertion of the IS6110 element is not without consequence to the biology of Mycobacterium tuberculosis complex strains. Thus, mapping of multiple IS6110 insertion sites in the genome of biomedically relevant clinical isolates would result in a better understanding of the role of this mobile ele...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2006.03.021
更新日期:2006-11-01 00:00:00
abstract::Two novel modifications of continuous culture with gradual change of dilution rate (A-stat): D-stat and auxo-accelerostat were evaluated in the studies of the effect of changing individual environmental parameters (T, pH, pO(2), substrate concentration, etc.) on growth characteristics of different microorganisms. Comm...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/s0167-7012(03)00143-x
更新日期:2003-10-01 00:00:00
abstract::Linear B-cell epitopes ((93)AKEFEAAAL(101) and (66)PQLTDVLN(73)) of CfaB were genetically fused to ltb-(gly)5-cfaB(1-25). Sera of rabbits immunized with fusion proteins reacted strongly with solid-phase bound ETEC bacteria bearing CFA/I fimbriae. Sera failed to agglutinate or inhibit hemagglutination promoted by CFA/I...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2014.07.035
更新日期:2014-11-01 00:00:00
abstract::To prevent postoperative infectious complications, a urinary tract infection should be either diagnostically excluded or treated prior to ureterorenoscopy (URS). URS is a frequently performed endoscopic surgery for urological stone removal. Although the urinary dipstick test represents a simple and cost-effective meth...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2020.105933
更新日期:2020-06-01 00:00:00
abstract::Salmonella enterica serotype gallinarum biotype gallinarum and biotype pullorum are non-motile and pathogenic avian strains. Biotype gallinarum causes fowl typhoid and biotype pullorum is the cause of pullorum disease in chickens. The two biotypes could be differentiated based on biochemical characteristics. However, ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/s0167-7012(99)00129-3
更新日期:2000-03-01 00:00:00
abstract::Test and evaluation of engineered biothreat agent detection systems ("biodetectors") are a challenging task for government agencies and industries involved in biosecurity and biodefense programs. In addition to user friendly features, biodetectors need to perform both highly sensitive and specific detection, and must ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2014.07.013
更新日期:2014-10-01 00:00:00
abstract::A direct most-probable-number polymerase chain reaction method (MPN-PCR) was used to monitor populations of Thiobacillus thioparus in compost biofilters used to treat air contaminated with dymethyl disulphide and ammonia. The PCR method quantified this bacterium at numbers ranging from log 2 to log 8 cells per gram of...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2005.08.001
更新日期:2006-05-01 00:00:00
abstract::This paper reports a novel electrochemical immunosensor for the sensitive detection of staphylococcal enterotoxin A (SEA) based on self-assembly monolayer (SAM) and protein A immobilization on gold electrode. Three different methods of protein A immobilization were tested: physical adsorption, cross-linking using glut...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2012.05.016
更新日期:2012-10-01 00:00:00
abstract::Race 3, biovar 2 strains of Ralstonia solanacearum are quarantined pathogens in Europe and Canada and Select Agent pathogens in the United States. The biovar classification of R. solanacearum strains is based on their biochemical abilities to utilize a carbohydrate panel. The standard biovar test uses bromothymol blue...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2011.12.007
更新日期:2012-02-01 00:00:00
abstract::Neisseria gonorrhoeae (NG) has developed resistance to most antibiotics, making it increasingly difficult to treat. Previous studies have predicted antimicrobial NG susceptibility based on the antimicrobial gene target DNA gyrase subunit A (gyrA) codon serine 91 and the penicillin-binding protein 2 (penA) using Roche ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2019.105783
更新日期:2020-01-01 00:00:00
abstract::Flow cytometry (FCM) is efficient in detecting both abundance and optical physiological parameters including cell size and cellular carbon content-side scatter (SSC), carotenoids-green and orange fluorescence (FL1 and FL2), and red fluorescence-chlorophylls (FL3) can be obtained by FCM. The utilization of these physio...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2012.09.030
更新日期:2012-12-01 00:00:00
abstract::In this report, a passive microfluidic chip design was developed for fast and sensitive fluorometric determination of Escherichia coli (E. coli) based on sandwich immunoassay. Initially, magnetic nanoparticles (MNPs) and chitosan modified mercaptopropionic acid capped cadmium telluride (CdTe) quantum dots (QDs) were f...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2019.105680
更新日期:2019-09-01 00:00:00
abstract::A biofilm reactor was constructed to monitor the long-term growth and removal of biofilms as monitored by the use of a quartz crystal microbalance (QCM) and a novel optical method. The optical method measures the reflectance of white light off the surface of the quartz crystal microbalance electrode (gold) for determi...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2006.01.016
更新日期:2006-09-01 00:00:00
abstract::Small-colony variants (SCVs) are slow-growing subpopulations of various auxotrophic bacterial strains. Thymidine-dependent SCVs (TD-SCVs) are unable to synthesize thymidine; hence, these variants fail to grow in a medium without thymidine. In this study, we used 10 TD-SCVs of Staphylococcus aureus, of which four strai...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2015.01.007
更新日期:2015-03-01 00:00:00
abstract::Complementation of chromosomal mutations in trans can introduce artifacts due to the number of episomal copies of the gene in question. One solution is to study the gene expressed at a single ectopic site in cis. We have designed and constructed a vector that allows homologous recombination into a gene encoding a fram...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2004.02.014
更新日期:2004-06-01 00:00:00
abstract::To ensure quality management during the production processes of probiotics and for efficacy testing in vivo, accurate tools are needed for the identification and quantification of probiotic strains. In this study, a strain-specific qPCR assay based on Suppression Subtractive Hybridisation (SSH) for identifying unique ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2016.02.011
更新日期:2016-04-01 00:00:00
abstract::A novel fluorescent microbead immunoassay (FMIA) using the recombinant polypeptide SpaA415 was developed for detection of anti-Erysipelothrix spp. IgG in pig sera. The diagnostic performance of the FMIA was evaluated on samples from pigs with known and unknown Erysipelothrix spp. exposure and compared to an in-house e...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2012.07.014
更新日期:2012-10-01 00:00:00
abstract::Rapid enumeration of Escherichia coli strains by quantitative real-time PCR targeting the uidA gene was developed and confirmed for minced beef, tuna and raw oyster. Higher sensitivity (1 CFU/g of E. coli in all three food samples) was obtained by incubating for 7 h in TSB. Colony-directed E. coli specific TaqMan PCR ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2009.08.002
更新日期:2009-10-01 00:00:00
abstract::Laser desorption-time of flight (LD-TOF) mass spectrometry-based detection of hemozoin was assessed for its performance characteristics as a rapid screening test for malaria. In spite of good specificity of >95%, poor sensitivity of 80.2% for microscopically positive samples makes the easy-to-apply and rapid approach ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2019.04.002
更新日期:2019-05-01 00:00:00
abstract::Streptococcus agalactiae is the principal cause of neonatal infections; however, for its study, genetic tools are scarce. We have developed pG+off, an expression vector with a tetracycline inducible promoter that allows a tightly-controllable gene expression in S. agalactiae. Using a reporter gene, we have shown that ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2013.10.020
更新日期:2014-01-01 00:00:00
abstract::Viability PCR (v-PCR) as a method to selectively detect intact live cells has gained considerable interest over the last years with an increasing number of applications. The principle is based on treatment of microbiological samples with a viability dye prior to extraction of genomic DNA and its amplification. The dye...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2013.01.018
更新日期:2013-04-01 00:00:00
abstract::For routine mass screening, the use of microarrays is hampered because one chip can only analyze one sample. 16S rRNA gene PCR products of several bacterial strains or mixtures thereof were consecutively loaded on a single electronic microarray and successfully analyzed using probes specific for the bacterial strains....
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/s0167-7012(03)00168-4
更新日期:2003-11-01 00:00:00
abstract::A PMA (propidium monoazide) pretreatment protocol, in which PMA is applied directly to membrane filters, was developed for the PCR-based quantification (PMA-qPCR) of viable Legionella pneumophila. Using this method, the amplification of DNA from membrane-damaged L. pneumophila was strongly inhibited for samples contai...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2011.12.010
更新日期:2012-02-01 00:00:00