Abstract:
:MTS or {3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl}-2H-tetrazolium, inner salt) is converted into soluble formazan by mitochondrial dehydrogenase of viable cells, thus serving as an indicator of cell viability. Accordingly, a MTS-based assay was developed to evaluate anti-leishmanial activity in Leishmania promastigotes from strains responsible for visceral, cutaneous or mucocutaneous leishmaniasis. The assay was initially optimized for the appropriate wavelength (490 nm), culture medium (M-199), incubation time (3 h) and temperature (37 degrees C). Increasing absorbance with increasing cell density confirmed linearity of the assay that was maintained up to 2.5 x 10(6) cells/200 microl. The growth kinetics of six L. donovani strains and six non-L. donovani strains consistently indicated higher absorbances in the L. donovani strains highlighting the importance of strain-specific customization of the MTS assay. The IC(50) values (i.e., the concentration at which 50% of growth was inhibited) of amphotericin B, miltefosine and pentamidine isethionate obtained by the MTS assay corroborated with previously published data. Taken together, the MTS assay thus permits a simple, reproducible and reliable semi-automated method for evaluating cell viability, effective for drug-screening and growth kinetic studies.
journal_name
J Microbiol Methodsjournal_title
Journal of microbiological methodsauthors
Ganguly S,Bandyopadhyay S,Sarkar A,Chatterjee Mdoi
10.1016/j.mimet.2005.10.011subject
Has Abstractpub_date
2006-07-01 00:00:00pages
79-86issue
1eissn
0167-7012issn
1872-8359pii
S0167-7012(05)00330-1journal_volume
66pub_type
杂志文章abstract::A 16S rRNA gene-based fingerprinting method was developed for the identification of Azotobacteraceae and tested onto 48 soil isolates and 28 reference strains belonging to the free-living nitrogen-fixing bacterial group and to the most common species found in soil samples. According to this method, the 16S rRNA gene w...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2004.01.006
更新日期:2004-05-01 00:00:00
abstract::A real-time PCR (RTm-PCR) assay using fluorescently labeled oligonucleotides (TaqMan probes) was used to detect and quantify the recombinant Rhodococcus sp. strain RHA1(fcb) in soil. One primer and probe set targeted a hypervariable region of the 16S rRNA gene unique to strain RHA1(fcb) and its phylogenetic relatives,...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/s0167-7012(02)00067-2
更新日期:2002-10-01 00:00:00
abstract::Geosmin is a volatile fungal metabolite with an earthy aroma produced in grape products from rotten grapes. The accumulation of geosmin in grapes is caused by the interaction of Botrytis cinerea and Penicillium expansum. Solid Phase Microextraction (SPME) has great utility for collecting volatile compounds in wine. Ho...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2010.07.013
更新日期:2010-10-01 00:00:00
abstract::Detection of microbial DNA in clinical samples by real-time PCR requires a universal extraction method with equally efficient lysis of cell walls of all possible microorganisms. We demonstrated that physical disruption by bead-beating with 0.1mm beads in combination with MagNA Pure DNA III extraction enhances microbia...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2009.11.009
更新日期:2010-02-01 00:00:00
abstract::AFLP is a selective restriction fragment amplification method generating DNA fingerprints for microbial isolates. We present high-throughput AFLP (htAFLP) to characterize molecular markers associated with bacterial phenotypes. Methicillin-resistant and -susceptible isolates of Staphylococcus aureus have been used for ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2007.07.013
更新日期:2007-10-01 00:00:00
abstract::A new concept for multiplex detection and quantification of microbes is here demonstrated on a range of infectious fungal species. Padlock probe methodology in conjunction with qPCR and Luminex technology was used for simultaneous detection of ten fungal species in one single experiment. By combining the multiplexing ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2009.05.016
更新日期:2009-08-01 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::The lack of a surrogate-of-immunity assay presents a major barrier to Streptococcus pyogenes research. Modification of the Lancefield assay to include an antibody digestion step reduced inter-donor variation and permitted detection of the anti-streptococcal activity of intravenous immunoglobulin and convalescent serum...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2016.03.015
更新日期:2016-05-01 00:00:00
abstract::New enzyme immunoassays (EIAs) for determination of specific IgG, IgA, and IgM antibody titers to Chlamydia pneumoniae were evaluated independently in three research laboratories. Specificity of the EIAs was enhanced by removing LPS from the chlamydial antigen. The performance of these EIAs was evaluated in comparison...
journal_title:Journal of microbiological methods
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/s0167-7012(00)00220-7
更新日期:2000-12-15 00:00:00
abstract::This article presents an experimental design for measuring the mRNA expression in Salmonella enterica of the mntH gene in phagosome-mimicking conditions. The expression of mntH was quantified by real-time reverse transcription PCR for different S. enterica strains of porcine origin under different biological growth co...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2005.11.003
更新日期:2006-07-01 00:00:00
abstract::Microscopic discrimination between extracellular and invasive, intracellular bacteria is a valuable technique in microbiology and immunology. We describe a novel fluorescence staining protocol, called FITC-biotin-avidin (FBA) staining, which allows the differentiation between extracellular and intracellular bacteria a...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2004.05.008
更新日期:2004-10-01 00:00:00
abstract::Many methods are developed to assess antimicrobial action of ZnO nanoparticles (NPs). A large number of methods associated with the use of fluorescent probes are developed, including Spectrofluorometry, fluorescence microscopy, and cytometry. In this study, flowcytometry, Spectrofluorometry and fluorescent microscopy ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2020.105920
更新日期:2020-06-01 00:00:00
abstract::To establish the gene transfer system in the cyanobacteria, we successfully introduced the shuttle plasmid pRL489 into Oscillatoria MKU 277 by electroporation with transformation frequencies of up to 102 cfu/mug of plasmid DNA. These findings suggest that Oscillatoria MKU 277 can be used as an experimental tool for ge...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2005.11.011
更新日期:2006-07-01 00:00:00
abstract::Cryptosporidium is a zoonotic coccidian parasite associated with diarrhea, and the disinfectant-resistant oocysts are threats to public health even in industrialized countries. In order to make an accurate assessment of the risk to public health, a detection method that has a high recovery rate of oocysts in water is ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/s0167-7012(03)00209-4
更新日期:2003-12-01 00:00:00
abstract::Denaturing gradient gel electrophoresis (DGGE) of PCR-amplified ribosomal RNA gene amplicons was used to study the stool microbiota of hospitalized patients and to examine the effect of antibiotic therapy. For one patient, 16 anaerobic species identified by random cloning and sequencing of PCR-amplified rRNA genes fro...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/s0167-7012(03)00059-9
更新日期:2003-08-01 00:00:00
abstract::Lactic acid bacteria (LAB) play important roles in the food industry, animal husbandry and medicine which are closely related to human life. Modern gene engineering technology is the major means to reveal gene functions, study metabolic pathways and metabolomes of strains and improve the properties of strains. However...
journal_title:Journal of microbiological methods
pub_type: 杂志文章,评审
doi:10.1016/j.mimet.2020.105944
更新日期:2020-07-01 00:00:00
abstract::To develop a quantitative assay of fungal growth inside plant tissues, strains of Colletotrichum destructivum and Colletotrichum orbiculare were transformed with a modified green fluorescent protein (GFP) gene fused with a glyceraldehyde-3-phosphate dehydrogenase promoter from Aspergillus nidulans. Transformants expre...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/s0167-7012(02)00234-8
更新日期:2003-04-01 00:00:00
abstract::Bacterial fruit blotch (BFB) of cucurbits, caused by Acidovorax citrulli, is a major threat to commercial watermelon and melon production worldwide. At present, there are at least two genetically distinct sub-populations (group I and II) of A. citrulli that differ in host preference among cucurbit species and copper s...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2019.02.003
更新日期:2019-03-01 00:00:00
abstract::Polyhydroxyalkanoates (PHAs) are important for biodegradable plastic production, and prokaryotes play a very important role in PHA production. PHA synthase is a key enzyme for the polymerization of PHAs. There are four classes of PHA synthase. The phaC gene is necessary for the production of all classes of PHA synthas...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2015.06.012
更新日期:2015-09-01 00:00:00
abstract::Numerous diagnostic assays for Helicobacter pylori detection are available. However, these techniques have their own advantages as well as limitations. Here we tried to develop a real-time quantitative (Q) PCR assay to measure ureC copy number to detect H. pylori, based on the fact that there is only one copy of the u...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2011.05.012
更新日期:2011-08-01 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::Microsporidia is a term used to describe a group of emerging protozoan pathogens whose environmental occurrence has only recently been documented due to lack of detection methodologies. This study evaluates and describes current methods for detection of microsporidia in water. Standard methods, for the collection and ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/s0167-7012(98)00101-8
更新日期:1999-02-01 00:00:00
abstract::Idiopathic interstitial pneumonias are interstitial lung diseases of unknown etiology which prognosis is usually fatal. Microbiota associated to bronchoalveolar lavage from 20 patients with negative bacterial cultures was explored by 16S-rDNA PCR-DGGE, showing a clearly negative relation among the presence of P. jirov...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2010.03.026
更新日期:2010-07-01 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::Identifying microorganisms that are active under specific conditions in ecosystems is a challenge in microbial ecology. Recently, the bromodeoxyuridine (BrdU) technique was developed to label actively growing cells. BrdU, a thymidine analog, is incorporated into newly synthesized DNA, and the BrdU-labeled DNA is then ...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2010.09.016
更新日期:2010-12-01 00:00:00
abstract::Laser interferometry is commonly used in permeability studies of soluble substances. In this study a modification that allowed testing partially insoluble mixtures is presented. The modification relies on the measurement of diffusion from 1% agarose gel. As a model for this study, two Proteus mirabilis strains were us...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2009.01.020
更新日期:2009-05-01 00:00:00
abstract::MALDI-TOF MS identified a 6250-Da protein specific to Sequence Type-1 (ST-1) strains and a 7625-Da protein specific to ST-17 strains when used for identification of Group B streptococci. The strains of these STs are major causes of meningitis and late-onset-disease in neonates. This rapid method of identification coul...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2011.05.017
更新日期:2011-08-01 00:00:00
abstract::Mycoplasma synoviae, an important poultry pathogen, belonging to the class Mollicutes, causes airsacculitis, synovitis, decreased egg production and produces significant economic losses. Efforts to determine M. synoviae virulence factors and their role in pathogenicity require suitable tools for genetic manipulation o...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2014.05.014
更新日期:2014-08-01 00:00:00
abstract::We report here the construction of a plasmid vector designed for the efficient electrotransformation of the periodontal pathogen Porphyromonas gingivalis. The novel Escherichia coli-Bacteroides/P. gingivalis shuttle vector, designated pTIO-1, is based on the 11.0-kb E. coli-Bacteroides conjugative shuttle vector, pVAL...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2014.07.032
更新日期:2014-10-01 00:00:00
abstract::Aquaculture is a fast growing industry with its development hampered by bacterial diseases. Vibriosis caused by Harveyi clade strains is known for causing heavy loss especially in shrimp aquaculture farms. For farm treatment and pathogen spread management, veterinarians and researchers need reliable bacterial identifi...
journal_title:Journal of microbiological methods
pub_type: 杂志文章
doi:10.1016/j.mimet.2020.106106
更新日期:2021-01-01 00:00:00