Adaptation of Listeria monocytogenes in a simulated cheese medium: effects on virulence using the Galleria mellonella infection model.

abstract：AIMS:Haloarchaeal proteases function optimally in high salt (low water activity); thus, they offer an advantage over the nonhalophilic counterparts as biocatalysts for protease-catalysed peptide synthesis. The haloalkaliphilic archaeon Natrialba magadii secretes a solvent-tolerant protease, Nep (Natrialba magadii extra...

journal_title：Letters in applied microbiology

authors： Ruiz DM,Iannuci NB,Cascone O,De Castro RE

更新日期：2010-12-01 00:00:00

abstract：:A method for developing a single-transposon-insertion mutant from a double-insertion mutant in Rhizobium is described. An exopolysaccharide (EPS)-defective mutant containing two Tn5-lacZ insertions was complemented with cloned wild-type DNA for EPS synthesis. One of the Tn5-lacZ insertions from the mutant was transfer...

journal_title：Letters in applied microbiology

authors： Parveen N,Borthakur D

更新日期：1994-09-01 00:00:00

abstract：:The physical effects of high-intensity pulsed electric fields (PEF) on the inactivation of diarrhoeagenic Bacillus cereus cells suspended in 0.1% peptone water were examined by transmission electron microscopy (TEM). The levels of PEF-induced microbial cell death were determined by enumeration on tryptone soy yeast ex...

journal_title：Letters in applied microbiology

authors： Rowan NJ,MacGregor SJ,Anderson JG,Fouracre RA,Farish O

更新日期：2000-08-01 00:00:00

abstract：AIMS:A commercial biochemical panel ID kit was used to identify presumptive enterococci isolates of veterinary or agricultural origin obtained during different steps of culture. METHODS AND RESULTS:Fifty isolates identified as enterococci using a genus PCR assay were tested for genus and species identification using t...

journal_title：Letters in applied microbiology

authors： Hudson CR,Fedorka-Cray PJ,Jackson-Hall MC,Hiott LM

更新日期：2003-01-01 00:00:00

abstract：AIMS:The study was carried out to evaluate the use of randomly amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR) as a method for the identification of lactobacilli isolated from meat products. METHODS AND RESULTS:RAPD-PCR with primers M13 and D8635 was applied to the identification and intraspecific diffe...

journal_title：Letters in applied microbiology

authors： Andrighetto C,Zampese L,Lombardi A

更新日期：2001-07-01 00:00:00

abstract：AIMS:To demonstrate that produce rinsates used for RT-qPCR detection of foodborne viruses may cause significant PCR inhibition and propose a means to reduce its impact on sensitivity. METHODS AND RESULTS:Here, it is shown that rinsing and concentration from spinach and precut lettuce have the potential to generate RNA...

journal_title：Letters in applied microbiology

authors： Plante D,Bélanger G,Leblanc D,Ward P,Houde A,Trottier YL

更新日期：2011-03-01 00:00:00

abstract：AIMS:To investigate the susceptibility of 221 Listeria spp. (86 Listeria monocytogenes, 41 Listeria innocua and 94 Listeria seeligeri-Listeria welshimeri-Listeria ivanovii) isolated from catfish fillets and processing environment to 15 antibiotics. METHODS AND RESULTS:Listeria isolates were analysed by disc-diffusion ...

journal_title：Letters in applied microbiology

authors： Chen BY,Pyla R,Kim TJ,Silva JL,Jung YS

更新日期：2010-06-01 00:00:00

abstract：AIM:To quantify the influence of trimethylamine-N-oxide (TMAO) on the heat resistance of Escherichia coli K12 MG1655 cells at static temperatures. METHODS AND RESULTS:Stationary-phase E. coli cells were inactivated at 52, 54 and 58°C. The heat resistance is described as reduction in the inactivation rate, k(max) , and...

journal_title：Letters in applied microbiology

authors： Velliou EG,Van Derlinden E,Cappuyns AM,Aerts D,Nikolaidou E,Geeraerd AH,Devlieghere F,Van Impe JF

更新日期：2011-02-01 00:00:00

abstract：AIMS:Saccharomyces cerevisiae was used for studying the physiological effects of hydrostatic pressure. METHODS AND RESULTS:The effects of hydrostatic pressure on the ultrastructure of wild-type and trehalose-6-phosphate synthase (tps1) mutant cells were investigated by transmission electron microscopy. Pressure induce...

journal_title：Letters in applied microbiology

authors： Fernandes PM,Farina M,Kurtenbach E

更新日期：2001-01-01 00:00:00

abstract：AIMS:To investigate if one hypothetical protein from Chlamydophila pneumoniae AR39 exerts UbiG-like function by complementary experiments. METHODS AND RESULTS:Proteins UbiG have a signature S-adenosylmethionine-binding motif compared with other methyltransferases. Probing with the conserved motif, one hypothetical pro...

journal_title：Letters in applied microbiology

authors： Liu J,Zhang X,Liu J

更新日期：2007-07-01 00:00:00

abstract：UNLABELLED:Most plant species are colonized by endophytic bacteria. Despite their importance for plant health and growth, the response of these bacteria to grassland management regimes is still not understood. Hence, we investigated the bacterial community structure in three agricultural important grass species Dactyli...

journal_title：Letters in applied microbiology

authors： Wemheuer F,Wemheuer B,Kretzschmar D,Pfeiffer B,Herzog S,Daniel R,Vidal S

更新日期：2016-04-01 00:00:00

abstract：AIMS:  We evaluated risks associated with diaper changing in Finnish kindergartens where children were using either modern disposable paper or reusable cloth diapers. METHODS AND RESULTS:  We determined enteric micro-organisms and ammonia in diaper-changing rooms in four kindergartens in autumn and winter in the ambie...

journal_title：Letters in applied microbiology

authors： Vaattovaara PE,Kivimäenpää M,Vaattovaara P,Pasanen P,Heinonen-Tanski H

更新日期：2012-05-01 00:00:00

abstract：:Nicotinic acid (NA) is ubiquitous in nature and its microbial degradation mechanisms are diverse. In this study, Pusillimonas sp. strain T2 was found to be capable of utilizing NA as sole carbon and nitrogen sources. This strain could completely degrade 300 mg l-1 NA within 3·5 h at 30°C and pH 7·0 and one of the degr...

journal_title：Letters in applied microbiology

authors： Yuan M,Zhang Y,Zhao L,Ma Y,He Q,He J,Qiu J

更新日期：2018-04-01 00:00:00

abstract：:For pyruvate-producing strains, intracellular reduced nicotinamide adenine dinucleotide (NADH) accumulation is the main reason for the glycolysis inhibition. Comparing with glucose, using sodium gluconate as carbon source brought a decrease in NADH production and an increase in pyruvate production in engineered strain...

journal_title：Letters in applied microbiology

authors： Yang M,Mu T,Zhong W,Olajuyin AM,Xing J

更新日期：2017-08-01 00:00:00

abstract：UNLABELLED:Bioconversion of biomass, particularly crop wastes, into biofuels is being developed as an alternative approach in meeting the high energy demand. In this study, a thermophilic bacterial strain BY-3 that exhibits cellulolytic potential was isolated from faecal samples of Tibetan pigs; this strain was identif...

journal_title：Letters in applied microbiology

authors： Meng F,Ma L,Ji S,Yang W,Cao B

更新日期：2014-09-01 00:00:00

abstract：AIMS:The objective of the study was to evaluate the variability of germination response of 10 strains of proteolytic Clostridium botulinum. METHODS AND RESULTS:An automated turbidometric method was used to follow the fall in optical density. Spores of proteolytic Cl. botulinum germinated in response to l-alanine alone...

journal_title：Letters in applied microbiology

authors： Alberto F,Broussolle V,Mason DR,Carlin F,Peck MW

更新日期：2003-01-01 00:00:00

abstract：AIMS:This paper attempts to develop a kinetic model to describe the growth of aerobic granules developed under different operation conditions. METHODS AND RESULTS:A series of experiments were conducted by using four-column sequencing batch reactors to study the formation of aerobic granules under different conditions,...

journal_title：Letters in applied microbiology

authors： Yang SF,Liu QS,Tay JH,Liu Y

更新日期：2004-01-01 00:00:00

abstract：:The contribution of trehalose and hsp104 to barotolerance in Saccharomyces cerevisiae has been investigated. Mutant strains, which lacked the ability to accumulate trehalose and/or hsp104, were examined for barotolerance and thermotolerance. All the mutants showed lower barotolerance and thermotolerance than their con...

journal_title：Letters in applied microbiology

authors： Iwahashi H,Obuchi K,Fujii S,Komatsu Y

更新日期：1997-07-01 00:00:00

abstract：UNLABELLED:The unicellular freshwater green microalga Haematococcus pluvialis is the richest source of natural astaxanthin. Since accumulation of astaxanthin differs significantly among various algal strains at different stages, it is therefore critical to develop an effective high-throughput assay for rapid screening ...

journal_title：Letters in applied microbiology

authors： Liu JH,Song L,Huang Q

更新日期：2016-02-01 00:00:00

abstract：:Anti-MRSA activity of sophoraflavanone G (SFG) and synergism between SFG and antibacterial agents against MRSA (methicillin-resistant Staphylococcus aureus) were evaluated by means of Minimal Inhibitory Concentrations (MIC). The MICs of SFG against 27 strains of MRSA ranged from 3.13 to 6.25 micrograms ml-1. Synergism...

journal_title：Letters in applied microbiology

authors： Sakagami Y,Mimura M,Kajimura K,Yokoyama H,Linuma M,Tanaka T,Ohyama M

更新日期：1998-08-01 00:00:00

abstract：AIMS:To test the inhibitory activity of 2-nitro-1-propanol (2NPOH) against Salmonella Typhimurium, Escherichia coli O157:H7 and Enterococcus faecalis. METHODS AND RESULTS:Specific growth rates (h(-1)) of S. Typhimurium, E. coli O157:H7 and Ent. faecalis were determined during culture in tryptic soya broth (TSB) supple...

journal_title：Letters in applied microbiology

authors： Jung YS,Anderson RC,Callaway TR,Edrington TS,Genovese KJ,Harvey RB,Poole TL,Nisbet DJ

更新日期：2004-01-01 00:00:00

abstract：:Sodium pyrithione and zinc pyrithione (NaPT and ZnPT, respectively) are widely used as cosmetic preservatives and metal chelating agents. They are commonly assayed using thin layer chromatography (TLC) and high performance liquid chromatography (HPLC). However, a simple quantitative colorimetric assay has not been pre...

journal_title：Letters in applied microbiology

authors： Dinning AJ,al-Adham IS,Austin P,Collier PJ

更新日期：1998-07-01 00:00:00

abstract：AIMS:The present work aimed to design an optimized medium to yield a higher production of glycosides by Pseudoalteromonas issachenkonii KMM 3549(T). METHODS AND RESULTS:Higher levels of fucoidan hydrolase, alginase, laminaranase and b-N-acetylglucosaminidase production were obtained with peptone concentrations ranging...

journal_title：Letters in applied microbiology

authors： Alexeeva YV,Ivanova EP,Bakunina IY,Zvaygintseva TN,Mikhailov VV

更新日期：2002-01-01 00:00:00

abstract：AIMS:In traditional Thai medicine, nutgall of Quercus infectoria G. Olivier is well-documented as an effective agent for wound and skin infections. The present study was aimed to establish modes of action of the ethanol extract of the plant as well as its main constituents to induce anti-methicillin-resistant Staphyloc...

journal_title：Letters in applied microbiology

authors： Chusri S,Voravuthikunchai SP

更新日期：2011-06-01 00:00:00

abstract：:Campylobacter jejuni was inoculated into a range of raw and ready-to-eat foods. These food samples were used as a test source for detection of this bacterium by the polymerase chain reaction (PCR). Specific detection of Camp. jejuni, as indicated by a PCR product of 159 bp, was possible with all pre-cooked deli-sliced...

journal_title：Letters in applied microbiology

authors： Winters DK,O'Leary AE,Slavik MF

更新日期：1998-09-01 00:00:00

abstract：AIM:Combination of immunomagnetic separation (IMS) and lateral flow device (LFD) assays for the development of a sensitive, rapid, on-site methodology that enables concentration and detection of Bacillus anthracis spores in complex samples. METHODS AND RESULTS:The data presents the development of an optimized, 30 min,...

journal_title：Letters in applied microbiology

authors： Fisher M,Atiya-Nasagi Y,Simon I,Gordin M,Mechaly A,Yitzhaki S

更新日期：2009-04-01 00:00:00

abstract：UNLABELLED:High-pressure homogenization (HPH) has been proposed to be applied directly to lactic acid bacterial cells at sublethal levels to enhance some functional properties. As the principal target of HPH are the cell surface envelope structures, the aim of this work was to study the effect of a HPH treatment, appli...

journal_title：Letters in applied microbiology

authors： Tabanelli G,Patrignani F,Gardini F,Vinderola G,Reinheimer J,Grazia L,Lanciotti R

更新日期：2014-02-01 00:00:00

abstract：UNLABELLED:Staphylococcus aureus LZ-01 was isolated from the Yellow River upstream from Lanzhou which can resist and reduce chromium (VI) to chromium (III). In this study, strain LZ-01's uranium (VI) resistance and adsorption abilities were investigated. Our results showed that it can resist 2 mmol l(-1) U(VI) and adso...

journal_title：Letters in applied microbiology

authors： Zou L,Chen Z,Zhang X,Liu P,Li X

更新日期：2014-11-01 00:00:00

abstract：:Phorate [O,O-diethyl-S-(ethylthio)methyl phosphoradiothioate] degrading bacteria were isolated from agricultural soil and characterized based on their morphological and biochemical characteristics. The selected isolates PS-1, PS-2 and PS-3 were presumptively identified as Rhizobium, Pseudomonas and Proteous species, r...

journal_title：Letters in applied microbiology

authors： Bano N,Musarrat J

更新日期：2003-01-01 00:00:00

abstract：AIMS:To study the viability of a culture of the rumen protozoon Entodinium caudatum after a cryopreservation procedure by a fluorescence microscopy staining method. METHODS AND RESULTS:Fluorescence method is based on the different colour of cells depending on their membrane integrity. When the temperature effect was s...

journal_title：Letters in applied microbiology

authors： de la Fuente G,Cebrián JA,Fondevila M

更新日期：2004-01-01 00:00:00