Effective biosynthesis of benzoyl ‐pyrrothine dithiolopyrrolone antibiotic by cinnamic acid‐precursor addition in culture of Saccharothrix algeriensis NRRL B‐24137
This article is protected by copyright. All rights reserved. (Source: Letters in Applied Microbiology)
Source: Letters in Applied Microbiology - November 27, 2018 Category: Microbiology Authors: R. Merrouche,
A. Yekkour,
Y. Coppel,
N. Bouras,
L. Lamari,
A. Zitouni,
F. Mathieu,
A. Lebrihi,
N. Sabaou Tags: Original Article Source Type: research
Coriander essential oil and linalool – interactions with antibiotics against Gram‐positive and Gram‐negative bacteria
This article is protected by copyright. All rights reserved. (Source: Letters in Applied Microbiology)
Source: Letters in Applied Microbiology - November 24, 2018 Category: Microbiology Authors: P. Aelenei,
C. M. Rimbu,
E. Guguianu,
G. Dimitriu,
A. C. Aprotosoaie,
M. Brebu,
C. E. Horhogea,
A. Miron Tags: Original Article Source Type: research
Identification and removal of contaminating microbial DNA from PCR reagents: impact on low ‐biomass microbiome analyses
In this study, we assessed the proportion to which our DNA extraction kit and PCR master mix introduce contaminating microbial DNA to bacterial microbial profiles generated by 16S rRNA gene sequencing. Utilizing a commercial dsDNase treatment protocol to decont aminate the PCR master mix, we demonstrated that the vast majority of contaminating DNA was derived from the PCR master mix. Importantly, this contamination was almost completely eliminated using the simple dsDNase treatment, resulting in a 99% reduction in contaminating bacterial reads. We suggest that dsDNase treatment of PCR reagents should be explored as a simpl...
Source: Letters in Applied Microbiology - November 23, 2018 Category: Microbiology Authors: L.F. Stinson,
J.A. Keelan,
M.S. Payne Tags: Original Article Source Type: research
Antibiofilm activity of three Actinomycete strains against Staphylococcus epidermidis
This study sought to identify novel and nontoxic biofilm inhibitors from theActinomycete library for attenuating biofilm formation byStaphylococcus epidermidis. After investigating the antibiofilm activities of spent media from 185Actinomycete strains using twoS. epidermidis strains (ATCC 35984 and a clinical strain 5 ‐121‐2) as target bacteria, three strains of testedActinomycete (TRM 46200, TRM 41337, and TRM 46814) showed a significant inhibition againstS. epidermidis biofilm formation without affecting the growth of planktonic cells. The characteristics of three strains of supernatants suggested that hydrophili...
Source: Letters in Applied Microbiology - November 22, 2018 Category: Microbiology Authors: T.T. Xie,
H. Zeng,
X.P. Ren,
N. Wang,
Z.J. Chen,
Y. Zhang,
W. Chen Tags: Review Article Source Type: research
Encapsulation of Bacillus salmalaya 139SI using double coating biopolymer technique
This study deals with the encapsulation ofBacillus salmalaya 139SI using simple double coating biopolymer technique which consist of brown rice protein/alginate and 0 ·5% low molecular weight chitosan of pH 4 and 6. The influence of biopolymer to bacteria mass ratio and the chitosan pH on the encapsulation process, physic‐chemical, morphology and bioactivity properties of encapsulatedB. salmalaya 139SI have been studied systematically. Based on the analysis of physico ‐chemical, morphology and bioactivity properties,B. salmalaya 139S1 encapsulated using double coating encapsulation technology has promising viabili...
Source: Letters in Applied Microbiology - November 22, 2018 Category: Microbiology Authors: P. Vejan,
R. Abdullah,
T. Khadiran,
S. Ismail Tags: Original Article Source Type: research
Stl1 transporter mediating the uptake of glycerol is not a weak point of Saccharomyces kudriavzevii's low osmotolerance
This report studiedS. kudriavzevii relative osmosensitivity and its capacity for active glycerol uptake. The results obtained (on the activity and physiological function ofS. kudriavzevii glycerol transporter) may contribute to a further engineering of this species aiming to improve its osmotolerance. AbstractSaccharomyces kudriavzevii is a nonconventional and rather osmosensitive yeast with a high potential of use in fermentation processes. To elucidate the basis of its relative osmosensitivity, the role of theSTL1 gene encoding a putative glycerol uptake system was studied. Under higher osmotic pressure, the addition of ...
Source: Letters in Applied Microbiology - November 22, 2018 Category: Microbiology Authors: J. Zeman číková,
K. Papoušková,
R. Peréz‐Torrado,
A. Querol,
H. Sychrová Tags: Original Article Source Type: research
Occurrence of Pathogenic Vibrio parahaemolyticus in Seafood Distribution Channels and Their Antibiotic Resistance Profiles in S. Korea
This study investigated the occurrence ofVibrio parahaemolyticus in seafood distribution channels, and the incidence of pathogenic and antibiotic resistant strains. One hundred sixty seven samples (126 fishery samples and 41 environmental samples) were collected from fishery auction markets, fish markets, and online markets in S. Korea from March to September, 2017. The samples were enriched in polymyxin broth and plated on CHROM agar Vibrio to isolate typical colonies. These were analyzed by PCR to identifyV. parahaemolyticus strains containing thehns gene and to examine the presence of pathogenic genes (tdh andtrh). The ...
Source: Letters in Applied Microbiology - November 18, 2018 Category: Microbiology Authors: Yewon Lee,
Yukyung Choi,
Soomin Lee,
Heeyoung Lee,
Sejeong Kim,
Jimyeong Ha,
Jeeyeon Lee,
Hyemin Oh,
Yujin Kim,
Yohan Yoon Tags: Original Article Source Type: research
Arabinoxylan from Argentinian whole wheat flour promote the growth of Lactobacillus reuteri and Bifidobacterium breve
This article is protected by copyright. All rights reserved. (Source: Letters in Applied Microbiology)
Source: Letters in Applied Microbiology - November 16, 2018 Category: Microbiology Authors: Candela Paesani,
Emiliano Salvucci,
Malena Moiraghi,
Liliana Fernandez Canigia,
Gabriela T P érez Tags: Original Article Source Type: research
Isolation and characterization of soil bacteria able to rapidly degrade the organophosphorus nematicide fosthiazate
This article is protected by copyright. All rights reserved. (Source: Letters in Applied Microbiology)
Source: Letters in Applied Microbiology - November 16, 2018 Category: Microbiology Authors: Stathis Lagos,
Chiara Perruchon,
Athanasia Katsoula,
Dimitrios G. Karpouzas Tags: Original Article Source Type: research
Issue Information
Letters in Applied Microbiology, Volume 67, Issue 6, Page 529-529, December 2018. (Source: Letters in Applied Microbiology)
Source: Letters in Applied Microbiology - November 14, 2018 Category: Microbiology Tags: Issue Information Source Type: research
Differentiation of Clavibacter michiganensis subsp. sepedonicus using PCR melting profile and variable number of tandem repeat methods
In this study, PCR melting profile (PCR MP) and variable number tandem repeat methods were used in Cms epidemiological analysis for the first time. PCR MP was based on the melting temperature analysis of BamHI restriction fragments of chromosomal DNA. Respectively, for the variable number tandem repeat (VNTR) method, six loci were identified and used in the differentiation of Cms isolates. PCR MP was used for 93 Cms isolated in Poland. Both PCR MP and VNTR methods were used for the differentiation of 47 Cms strains in this collection. Both these methods were found to be useful for the epidemiological analysis of Cms.Signif...
Source: Letters in Applied Microbiology - November 13, 2018 Category: Microbiology Authors: A. Żaczek,
K. Struś,
A. Sokołowska,
P. Parniewski,
A. Wojtasik,
J. Dziadek Tags: Original Article Source Type: research
Prevalence of Shiga toxin ‐producing Escherichia coli in pasture‐based dairy herds
This study evaluated the prevalence and virulence status of O157:H7 and sixE. coli O ‐serogroups (O26, O103, O45, O145, O121, O111) in New Zealand dairy farms using molecular as well as culture‐based methods. Fresh farm dairy effluent (FDE) (n=36) and composite calf faeces (n=12) were collected over three samplings from 12 dairy farms. All seven target serogroups were detected t hrough molecular techniques. Of the 202 isolates which were serologically confirmed following traditional culturing and immunomagnetic separation (IMS), O103, O26, O45 and O121 were the most common serogroups, being found in 81%, 47%, 42%, 32% ...
Source: Letters in Applied Microbiology - November 9, 2018 Category: Microbiology Authors: C.M. Ross,
D. Rapp,
V.M. Cave,
G. Brightwell Tags: Original Article Source Type: research
Effect of gamma irradiation on inactivation of Escherichia coli O157:H7, Salmonella Typhimurium and Listeria monocytogenes on pistachios
This study evaluated the efficacy of gamma irradiation to inactivate foodborne pathogens on pistachios (Pistacia vera L.). Pistachios inoculated withEscherichia coli O157:H7,Salmonella Typhimurium andListeria monocytogenes were subjected to gamma irradiation in the range of 0, 0.5, 1, 3 and 5 kGy, and color change was evaluated after treatment and during storage at room temperature. Pathogen populations decreased with increasing treatment doses. A gamma irradiation dose of 5 kGy decreased the three pathogens on pistachios to under the detection limit (1.0 log CFU g−1) without effecting color change. During storage follow...
Source: Letters in Applied Microbiology - November 9, 2018 Category: Microbiology Authors: Won ‐Jae Song,
Yoon‐Hee Kim,
Dong‐Hyun Kang Tags: Original Article Source Type: research
Effect of photopolymerized glaze application on bacterial adhesion on ocular acrylic resin surfaces submitted to accelerated aging
This study evaluated the influence of photopolymerized glaze application on the roughness of ARs and adhesion ofStaphylococcus aureus andStaphylococcus epidermidis on ocular AR surfaces submitted to accelerated aging. Two hundred and eighty ‐eight samples of white‐color (N1) and colorless ARs were distributed in 8 groups (n = 9), based on surface treatments (glaze or ARs submitted to only a final polishing), accelerated aging (before and after), and periods of microbial growth (24‐ and 48‐hours). The roughness average (Ra) and total height of roughness profile (Rt) values were greater for the groups with glaze and ...
Source: Letters in Applied Microbiology - November 8, 2018 Category: Microbiology Authors: Bruna Egumi Nagay,
Marcelo Coelho Goiato,
Emily Vivianne Freitas da Silva,
Agda Marobo Andreotti,
Sandro Basso Bitencourt,
Cristiane Duque,
Paulo Henrique dos Santos,
Daniela Micheline dos Santos Tags: Original Article Source Type: research
The antibiotics potentiator bicarbonate causes upregulation of tryptophanase and iron acquisition proteins in Escherichia coli
Letters in Applied Microbiology,Volume 0, Issue ja, -Not available-. (Source: Letters in Applied Microbiology)
Source: Letters in Applied Microbiology - November 1, 2018 Category: Microbiology Authors: Marisela Guti érrez‐Huante,
Martha Elva Martínez‐Duncker,
Elizabeth Sauceda,
Joaquín Sánchez Source Type: research
