Tetracycline-resistance genes in gram-negative isolates from estuarine waters.

abstract：AIMS:To determine the underlying substrate utilization mechanism in the logistic equation for batch microbial growth by revealing the relationship between the logistic and Monod kinetics. Also, to determine the logistic rate constant in terms of Monod kinetic constants. METHODS AND RESULTS:The logistic equation used t...

journal_title：Letters in applied microbiology

authors： Kargi F

更新日期：2009-04-01 00:00:00

abstract：AIMS:To evaluate the effect of protective agents upon survival of Lactobacillus delbrueckii ssp. bulgaricus during freeze-drying and storage, and selective amino acids on cell membrane fluidity. METHODS AND RESULTS:The protective effect of amino-acids and sugars at different concentrations was studied by determining t...

journal_title：Letters in applied microbiology

authors： Martos GI,Minahk CJ,de Valdez GF,Morero R

更新日期：2007-09-01 00:00:00

abstract：AIMS:Adaptation of a colorimetric assay using [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide] (MTT) to evaluate the cytotoxicity of the extracellular products of micro-organisms pathogenic to fish. METHODS AND RESULTS:The optimal conditions for the colorimetric assay were determined and this method was...

journal_title：Letters in applied microbiology

authors： Zorrilla I,Balebona MC,Moriñigo MA

更新日期：2001-11-01 00:00:00

abstract：AIM:The study aimed to evaluate the effect of the bacteriocins produced by Lactobacillus sakei CWBI-B1365 and Lactobacillus curvatus CWBI-B28 on the growth and survival of Listeria monocytogenes in raw beef and poultry meat. METHODS AND RESULTS:The sakacin P and sakacin G structural genes were identified in Lact. curv...

journal_title：Letters in applied microbiology

authors： Dortu C,Huch M,Holzapfel WH,Franz CM,Thonart P

更新日期：2008-12-01 00:00:00

abstract：:Many strains of Pseudomonas fluorescens show potential for biological control of phytopathogens especially root pathogens. In taxonomic terms, several of them are indeed P. fluorescens sensu stricto, while others belong in fact to neighbouring species of the 'P. fluorescens' complex or to ill-defined related species w...

journal_title：Letters in applied microbiology

authors： Couillerot O,Prigent-Combaret C,Caballero-Mellado J,Moënne-Loccoz Y

更新日期：2009-05-01 00:00:00

abstract：:A Coxiella sp. closely related to the agent of Q-fever, Coxiella burnetii, has been associated with mortalities in redclaw crayfish, (Cherax quadricarinatus), in farms and experimental facilities for three decades. Limited sequence data including 16S rRNA have placed the rickettsial species as a new species, candidatu...

journal_title：Letters in applied microbiology

authors： Ruth Elliman J,Owens L

更新日期：2020-09-01 00:00:00

abstract：AIMS:To examine changes in membrane fatty acid profile attributed to the physiological adaptation of Lactobacillus helveticus during vacuum drying. METHODS AND RESULTS:The viability and membrane integrity of the cells after vacuum drying were measured by plate counts and DNA fluorescence dyes. The physiological adapta...

journal_title：Letters in applied microbiology

authors： Santivarangkna C,Kulozik U,Kienberger H,Foerst P

更新日期：2009-10-01 00:00:00

abstract：AIMS:The aim of this study was to identify and determine the diversity, occurrence and distribution of fungi in water used at a haemodialysis centre. METHODS AND RESULTS:Samples in the hydraulic circuit for the distribution of the water, dialysate samples and samples of sterilization solution from dialysers were colle...

journal_title：Letters in applied microbiology

authors： Pires-Gonçalves RH,Sartori FG,Montanari LB,Zaia JE,Melhem MS,Mendes-Giannini MJ,Martins CH

更新日期：2008-05-01 00:00:00

abstract：AIMS:To determine the effect of cold storage on the survival of Erwinia amylovora. METHODS AND RESULTS:The survival of E. amylovora was assessed during storage at 2 degrees C. Populations of E. amylovora inoculated into phosphate-buffered saline remained static, whereas in nutrient media populations increased at low t...

journal_title：Letters in applied microbiology

authors： Taylor RK,Hale CN

更新日期：2003-01-01 00:00:00

abstract：UNLABELLED:Cysteine phytase is the main phytate-degrading enzyme of ruminant animals. To explore the genetic diversity and dynamic expression profile of cysteine phytase in sheep rumen during a feeding cycle, four transcript (0, 4, 9 and 16 h after feeding) and one DNA (9 h after feeding) clone libraries were construct...

journal_title：Letters in applied microbiology

authors： Li Z,Huang H,Zhao H,Meng K,Zhao J,Shi P,Yang P,Luo H,Wang Y,Yao B

更新日期：2014-12-01 00:00:00

abstract：AIMS:To evaluate the effect of oregano essential oil on Listeria monocytogenes cytoplasmic membrane. METHODS AND RESULTS:Nitroxide free-radical Electron Paramagnetic Resonance was applied on L. monocytogenes after 30 min exposure to oregano essential oil concentrations ranging from 0 to 1.25%. The impact of essential ...

journal_title：Letters in applied microbiology

authors： Serio A,Chiarini M,Tettamanti E,Paparella A

更新日期：2010-08-01 00:00:00

abstract：AIMS:The study aim was to determine the presence of total and faecal coliforms on kitchen surfaces, in tap water and on the hands of caregivers in households on both sides of the US-Mexico border. METHODS AND RESULTS:Samples were collected in 135 randomly selected households in Ciudad Juarez, Mexico, and El Paso, Texa...

journal_title：Letters in applied microbiology

authors： Carrasco L,Mena KD,Mota LC,Ortiz M,Behravesh CB,Gibbs SG,Bristol JR,Mayberry L,Cardenas VM

更新日期：2008-06-01 00:00:00

abstract：:The use of buoyant density centrifugation (BDC) to prepare samples for PCR analysis of food pathogens is described. Blue cheese and milk homogenates were inoculated with Shigella flexneri and layered on top of Percoll media. After BDC, the food homogenates remained in the upper part of the centrifuge tube, separated f...

journal_title：Letters in applied microbiology

authors： Lindqvist R,Norling B,Lambertz ST

更新日期：1997-04-01 00:00:00

abstract：UNLABELLED:A : Comparison of two commercial miniaturized rapid systems for the identification of Ralstonia pickettii strains. METHODS AND RESULTS:Varying identification results were encountered using the bioMérieux API NE system and the Remel IDS RapID NF Plus commercial systems for R. pickettii. To compare these two ...

journal_title：Letters in applied microbiology

authors： Adley CC,Saieb FM

更新日期：2005-01-01 00:00:00

abstract：UNLABELLED:Most of the current research into the quantification of soil-borne pathogenic oomycetes lacks determination of DNA extraction efficiency, probably leading to an incorrect estimation of DNA quantity. In this study, we developed a convenient method by using a 100 bp artificially synthesized DNA sequence derive...

journal_title：Letters in applied microbiology

authors： Li M,Ishiguro Y,Kageyama K,Zhu Z

更新日期：2015-08-01 00:00:00

abstract：:Species of Aspergillus section Nigri are not easily distinguished by traditional morphological techniques, and typically are identified by DNA sequencing methods. We developed four PCR primers to distinguish between Aspergillus niger, Aspergillus welwitschiae, Aspergillus carbonarius and Aspergillus tubingensis, based...

journal_title：Letters in applied microbiology

authors： Palumbo JD,O'Keeffe TL

更新日期：2015-02-01 00:00:00

abstract：AIMS:Strains of Clostridium butyricum have been increasingly used as probiotics for both animals and humans. The aim of this study was to develop a growth medium for cultivating C. butyricum ZJUCB using a statistical methodology. METHODS AND RESULTS:Response surface methodology (RSM) was used to evaluate the effects o...

journal_title：Letters in applied microbiology

authors： He GQ,Kong Q,Ding LX

更新日期：2004-01-01 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:The study was aimed to evaluate the Mycobacterium leprae recombinant early secreted antigenic target-6 (rESAT-6) for its serological performance in leprosy patients. METHODS AND RESULTS:Employing enzyme-linked immunosorbent assay (ELISA), serum samples were tested for prevalence of immunoglobulin G antibodies aga...

journal_title：Letters in applied microbiology

authors： Parkash O,Pandey R,Kumar A,Kumar A

更新日期：2007-05-01 00:00:00

abstract：:Amphotericin B (AmB), a typical polyene macrolide antifungal agent, is widely used to treat systemic mycoses. In the present study, we show that the fungicidal activity of AmB was enhanced by benzyl isothiocyanate (BITC), a cruciferous plant-derived compound, in the budding yeast, Saccharomyces cerevisiae. In addition...

journal_title：Letters in applied microbiology

authors： Yamada N,Murata W,Yamaguchi Y,Fujita KI,Ogita A,Tanaka T

更新日期：2020-10-31 00:00:00

abstract：:Staphylococcus aureus is a major agent of bovine mastitis in dairy herds, causing economic losses in dairy industry worldwide. In addition, milk and milk-products contaminated by Staph. aureus can cause harmful human diseases. The aim of this study was to characterize Staph. aureus strains isolated from dairy farms in...

journal_title：Letters in applied microbiology

authors： Ben Said M,Abbassi MS,Bianchini V,Sghaier S,Cremonesi P,Romanò A,Gualdi V,Hassen A,Luini MV

更新日期：2016-12-01 00:00:00

abstract：:The type strain Bacillus thuringiensis var. bolivia (serotype H63), isolated from the Bolivian high valleys, has been characterized at different levels. Its parasporal crystal has an unusual shape and it is composed of a protein of 155 kDa which shows two bands of 75 and 80 kDa after activation. Analysis by PCR shows ...

journal_title：Letters in applied microbiology

authors： Ferrandis MD,Andrew R,Porcar M,Iriarte J,Cosmao-Dumanoir V,Lecadet MM,Caballero P,Ferré J

更新日期：1999-06-01 00:00:00

abstract：AIMS:To investigate the ability of a mixture of phage K and six of its modified derivatives to prevent biofilm formation by Staphylococcus aureus and also to reduce the established biofilm density. METHODS AND RESULTS:The bioluminescence-producing Staph. aureus Xen29 strain was used in the study, and incubation of thi...

journal_title：Letters in applied microbiology

authors： Kelly D,McAuliffe O,Ross RP,Coffey A

更新日期：2012-04-01 00:00:00

abstract：:Control of biofouling on seawater reverse osmosis (SWRO) membranes is a major challenge as treatments can be expensive, damage the membrane material and often biocides do not remove the polymers in which bacteria are embedded. Biological control has been largely ignored for biofouling control. The objective of this st...

journal_title：Letters in applied microbiology

authors： Nagaraj V,Skillman L,Li D,Xie Z,Ho G

更新日期：2017-07-01 00:00:00

abstract：AIM:To study the effect of biosurfactant on aqueous phase solubility and biodegradation of chlorpyrifos. METHODS AND RESULTS:A Pseudomonas sp. (ChlD), isolated from agricultural soil by enrichment culture technique in the presence of chlorpyrifos, was capable of producing biosurfactant (rhamnolipids) and degrading chl...

journal_title：Letters in applied microbiology

authors： Singh PB,Sharma S,Saini HS,Chadha BS

更新日期：2009-09-01 00:00:00

abstract：:The yield of purified recombinant alpha-sarcin increases approximately three- to fourfold when this toxin is co-expressed in Escherichia coli with thioredoxin. This increased production is attributed to the existence, in the presence of thioredoxin, of a reducing environment which allows rearrangement of incorrect dis...

journal_title：Letters in applied microbiology

authors： García-Ortega L,Lacadena J,Lacadena V,Masip M,De Antonio C,Martínez-Ruiz A,Martínez Del Pozo A

更新日期：2000-04-01 00:00:00

abstract：:Fresh-cut produce is at greater risk of Salmonella contamination. Detection and early warning systems play an important role in reducing the dissemination of contaminated products. One-step Reverse Transcription Polymerase Chain Reaction (RT-qPCR) targeting Salmonella tmRNA with or without a 6-h enrichment was evaluat...

journal_title：Letters in applied microbiology

authors： Miao YJ,Xiong GT,Bai MY,Ge Y,Wu ZF

更新日期：2018-05-01 00:00:00

abstract：AIMS:The gram-positive bacterial genus Lactococcus has been taxonomically classified into seven species (Lactococcus lactis, Lactococcus garvieae, Lactococcus piscium, Lactococcus plantarum, Lactococcus raffinolactis, Lactococcus chungangensis and Lactococcus fujiensis). This study aimed to develop a novel multiplex po...

journal_title：Letters in applied microbiology

authors： Odamaki T,Yonezawa S,Kitahara M,Sugahara Y,Xiao JZ,Yaeshima T,Iwatsuki K,Ohkuma M

更新日期：2011-05-01 00:00:00

abstract：AIMS:This study assessed the plant growth-promoting ability of the bacterial strains Ochrobactrum intermedium (isolate CrT-1) and Bacillus cereus (isolate S-6). METHODS AND RESULTS:Two chromium resistant bacterial strains isolated from chromium-contaminated wastewater and soils were identified as O. intermedium CrT-1 ...

journal_title：Letters in applied microbiology

authors： Faisal M,Hasnain S

更新日期：2006-10-01 00:00:00

abstract：UNLABELLED:The objective of this study was to evaluate the effect of different caffeine concentrations (0-4%) on (i) lag phase prior to growth, (ii) growth rates and (iii) ochratoxin A (OTA) production by strains from the Aspergillus section Circumdati and Aspergillus section Nigri groups, isolated from coffee, when gr...

journal_title：Letters in applied microbiology

authors： Akbar A,Medina A,Magan N

更新日期：2016-07-01 00:00:00