Abstract:
:Our understanding of the molecular mechanisms of bacterial infection and pathogenesis are disproportionally derived from a small number of well-characterised species and strains. One reason for this is the enormous time and resources required to develop a new organism into experimental system that can be interrogated at the molecular level, in particular with regards to the development of genetic tools. Live cell imaging by fluorescence microscopy is a powerful technique to study biological processes such as bacterial motility, host cell invasion, and bacterial growth and division. In the absence of genetic tools that enable exogenous expression of fluorescent proteins, fluorescent chemical probes can be used to label and track living cells. A large number of fluorescent chemical probes are commercially available, but these have overwhelmingly been applied to the study of eukaryotic cell systems. Here, we present a methodical analysis of four different classes of probes, which can be used to delineate the cytoplasm, nucleic acids, cell membrane or peptidoglycan of living bacterial cells. We have tested these in the context of the important but neglected human pathogen Orientia tsutsugamushi but expect that the methodology would be broadly applicable to other bacterial species.
journal_name
J Microbiol Methodsjournal_title
Journal of microbiological methodsauthors
Atwal S,Giengkam S,VanNieuwenhze M,Salje Jdoi
10.1016/j.mimet.2016.08.022subject
Has Abstractpub_date
2016-11-01 00:00:00pages
169-176eissn
0167-7012issn
1872-8359pii
S0167-7012(16)30232-9journal_volume
130pub_type
杂志文章abstract::A rapid and reliable bacterial source tracking (BST) method is essential to counter risks to human health posed by fecal contamination of surface waters. Genetic fingerprinting methods, such as repetitive sequence based-PCR (rep-PCR), have shown promise as BST tools but are time-consuming and labor-intensive. In this ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2006.10.012
更新日期:2007-03-01 00:00:00
abstract::A new method for quantification of yeast invasion into the agar medium was developed. Classical agar-invasion assays have been the methods of choice for determination of yeast invasion, but their main disadvantage is the lack of quantification. Our new Quantitative yeast agar-invasion test allows for quantitative meas...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2008.02.009
更新日期:2008-05-01 00:00:00
abstract::BD Phoenix™ is an automated bacterial identification and susceptibility testing system. Here, its performance in screening IMP-producing Enterobacteriaceae was evaluated. The system identified 97.8% of IMP producers as being nonsusceptible to imipenem or meropenem, which was higher than that identified by the broth mi...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2017.12.006
更新日期:2018-02-01 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::Traditional culture and biochemical tests (CBT) were compared with PCR for sensitivity and detection of Brachyspira hyodysenteriae and Brachyspira pilosicoli in seeded faeces and clinical samples from diarrhoeic pigs. A duplex PCR system was developed based on primers detecting the tlyA-gene of B. hyodysenteriae and t...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2005.12.008
更新日期:2006-08-01 00:00:00
abstract::We describe a method based on fluorescence in situ hybridisation (FISH) that allows the identification of individual cells by electron microscopy. We hybridised universal and specific fluorescein-labelled oligonucleotide probes to the ribosomal RNA of prokaryotic microorganisms in heterogeneous cell mixtures. We then ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2005.02.018
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:Mycoplasma genitalium resistance to antibiotic treatments is increasing, with very limited treatment alternatives on the horizon. Surveillance via sequencing of multiple M. genitalium loci would allow: monitoring of known antibiotic resistance mutations, associations between resistance/treatment failure and ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2020.106089
更新日期:2020-12-01 00:00:00
abstract::Burkholderia pseudomallei is the causative agent of melioidosis, a potentially fatal disease endemic or emerging world-wide. Here we report unmarked allele-replacement mutagenesis using efficient sacB counter-selection. Despite being genotypically sacB(+), most commonly used B. pseudomallei strains are sucrose-resista...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2008.12.007
更新日期:2009-03-01 00:00:00
abstract::Yersinia pestis is a Department of Health and Human Services select agent as defined in federal regulations. Certain attenuated strains of Y. pestis, such as the pgm(-) strain, are exempt from these regulations. Herein we describe a strategy to verify the absence of the pgm locus in Y. pestis strains being considered ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2009.02.013
更新日期:2009-06-01 00:00:00
abstract::The development of rapid methods for detection of viable Listeria monocytogenes is crucial to prevent listeriosis and product recalls. While immunomagnetic separation has been used for isolating Listeria spp., lack of specificity and pathogenicity determination render this method unsatisfactory. A two-step method usin...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2004.10.006
更新日期:2005-02-01 00:00:00
abstract::Recent changes in Brazilian legislation for commercial disinfectants have been published due to the recent epidemic of nosocomial infections caused by rapidly growing mycobacteria (RGM) in many states of Brazil over the last 8years. One of these documents requires that all the manufacturers provide evidence of efficac...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2011.12.004
更新日期:2012-02-01 00:00:00
abstract::Bacterial identification methods used in routine identification of pathogens in medical microbiology include a combination approach of biochemical tests, mass spectrometry or molecular biology techniques. Extensive publicly-available databases of DNA sequence data from pathogenic bacteria have been amassed in recent y...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2019.03.016
更新日期:2019-05-01 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::Brucellosis is a zoonotic disease transmitted to humans from infected animals. As a systemic disease, it can harm any organ or system of the host body. Human brucellosis presents with various clinical symptoms, which makes diagnosis challenging. Serological diagnosis of brucellosis is based on ELISA or agglutination t...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2020.105964
更新日期:2020-07-01 00:00:00
abstract::We modified Wayne's pyrazinamidase test against Mycobacterium tuberculosis to indirectly measure pyrazinamidase activity via pyrazinoic acid in liquid medium. The modified pyrazinamidase test was easy to perform and its results were in complete agreement with those of the conventional Wayne's method, highlighting its ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2018.09.018
更新日期:2018-11-01 00:00:00
abstract::In this study, food-borne yeast isolates (n=96), comprising at least 33 species, were identified using MALDI-TOF MS and conventional methods (API ID 32 C and Phoenix Yeast ID). Discrepancies of both methods were resolved by sequencing the ITS1-5.8S-rRNA-ITS2 region. For ten isolates, mainly classified to Rhodotorula a...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2014.08.021
更新日期:2014-11-01 00:00:00
abstract::Toxoplasmosis is caused by the protozoan parasite Toxoplasma gondii, which belongs to the phylum Apicomplexa. Since this parasite causes severe clinical symptoms in immunocompromised patients, early diagnosis of toxoplasmosis is essential. PCR is currently used for early diagnosis, but there is no consensus regarding ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2017.08.001
更新日期:2017-10-01 00:00:00
abstract::Direct quantification of mRNA from Salmonella sp. seeded for 1 h to soil and chicken manure was accomplished using magnetic capture hybridization as a purification technique. This detection strategy targeted the invA gene present in Salmonella sp. After cell lysis, phenol/chloroform purification and isopropanol precip...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2007.02.001
更新日期:2007-05-01 00:00:00
abstract::We evaluated the use of mixed oligonucleotide probes hybridized to metagenomic clones spotted on high density membranes. The pooled probes included oligonucleotides designed for genes associated with denitrification, antibiotic resistance, and dehalogenation among others. Pyrosequence comparison between the clones and...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2008.09.009
更新日期:2009-01-01 00:00:00
abstract::Using robotics and the MPN technique, a 96-microwell method was developed to compare two procedures for enumeration of viable chlorine-treated B. atrophaeus spores: broth-culture enrichment followed by real-time polymerase chain reaction analysis; and filter plating on agar. Recoveries of chlorine-treated spores were ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2007.07.011
更新日期:2007-10-01 00:00:00
abstract::The European Union Reference Laboratory (EURL) for Listeria monocytogenes (Lm) collaborates with a network of 35 National Reference Laboratories (NRLs) throughout Europe. Most of these NRLs are in charge of detecting and typing Lm strains from food, environment and animals, which are isolated nationally. The past few ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2014.06.001
更新日期:2014-09-01 00:00:00
abstract::The present study describes the development of a simple and efficient screening system that allows identification and quantification of nine bacteriocins produced by Lactococcus lactis. Cell-free L. lactis extracts presented a broad spectrum of antibacterial activity, including Gram-negative bacteria, Gram-positive ba...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2016.06.003
更新日期:2016-08-01 00:00:00
abstract::Bacterial metabolic activity is associated with the onset and progression mechanisms of oral biofilm-mediated disease; however, at present no method to monitor bacterial metabolism exists, especially for periodontopathic bacteria. Therefore, we aimed to establish a novel method for monitoring the metabolic activity of...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2015.05.015
更新日期:2015-08-01 00:00:00
abstract::A protein database was constructed and validated with identification rate over 90% for the 4 most common Gram-negative bacteria on agar plates. By protein masses comparison, 120 bacteria of the 4 species from blood culture bottles were identified. The concordance was high (Kappa=0.906) between our method and conventio...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2014.07.021
更新日期:2014-10-01 00:00:00
abstract::Staphylococcus aureus is a bacterial species with pathogenic potential to both humans and animals. The primary natural niche is said to be the human vestibulum nasi from where bacterial cells may spread to the environment or additional anatomical sites such as the perineum or the hands, where residence is usually tran...
journal_title:Journal of microbiological methods
pub_type: 杂志文章,评审
doi:10.1016/s0167-7012(01)00342-6
更新日期:2002-01-01 00:00:00
abstract::Studying the mechanisms of Campylobacter pathogenesis is complicated by the lack of simple animal models that mimic the disease seen in humans. In vitro cell culture methods provide a useful alternative to investigate the interactions between Campylobacter and the host epithelium that occur during infection. In the ge...
journal_title:Journal of microbiological methods
pub_type: 杂志文章,评审
doi:10.1016/j.mimet.2004.12.003
更新日期:2005-05-01 00:00:00
abstract::A simple generic toxicity method (test) is proposed using baker's yeast to mediate the reduction of the colourless triphenyltetrazolium chloride (TTC) to red, 1,3,5-triphenyl formazan, which can be extracted by dimethyl sulfoxide (DMSO), enabling the identification of reducible toxic compounds (e.g. cadmium, fipronil)...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2019.04.008
更新日期:2019-06-01 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::Herein, an open-source method to generate quantitative bacterial growth data from high-throughput microplate assays is described. The bacterial lag time, maximum specific growth rate, doubling time and delta OD are reported. Our method was validated by carbohydrate utilization of lactobacilli, and visual inspection re...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2016.11.015
更新日期:2017-01-01 00:00:00
abstract::In this review, we examine numerous applications of the green fluorescent protein (GFP) marker gene in environmental microbiology research. The GFP and its variants are reviewed and applications in plant-microbe interactions, biofilms, biodegradation, bacterial-protozoan interactions, gene transfer, and biosensors are...
journal_title:Journal of microbiological methods
pub_type: 杂志文章,评审
doi:10.1016/s0167-7012(99)00024-x
更新日期:1999-04-01 00:00:00