Identity and mechanisms of alkane-oxidizing metalloenzymes from deep-sea hydrothermal vents.

abstract：:Lactobacillus (L. casei) Zhang is a koumiss-originated probiotic strain, which was used as a model in a long-term antibiotics-driven evolution experiment to reveal bacterial evolutionary dynamics; and we isolated gentamycin-resistant L. casei Zhang descendents. To decipher the gentamycin resistance mechanism, here we ...

journal_title：Frontiers in microbiology

authors： Zhang W,Guo H,Cao C,Li L,Kwok LY,Zhang H,Sun Z

更新日期：2017-11-23 00:00:00

abstract：:Genes that are constitutively expressed across multiple environmental stimuli are crucial to quantifying differentially expressed genes, particularly when employing quantitative reverse transcriptase polymerase chain reaction (RT-qPCR) assays. However, the identification of these potential reference genes in non-model...

journal_title：Frontiers in microbiology

authors： Alexander H,Jenkins BD,Rynearson TA,Saito MA,Mercier ML,Dyhrman ST

更新日期：2012-11-09 00:00:00

abstract：:Many insect species establish mutualistic symbiosis with intracellular bacteria that complement their unbalanced diets. The betaproteobacterium "Candidatus Tremblaya" maintains an ancient symbiosis with mealybugs (Hemiptera: Pseudococcidae), which are classified in subfamilies Phenacoccinae and Pseudococcinae. Most Ph...

journal_title：Frontiers in microbiology

authors： López-Madrigal S,Latorre A,Moya A,Gil R

更新日期：2015-06-25 00:00:00

abstract：:Nitrous oxide (N(2)O) is an environmentally important atmospheric trace gas because it is an effective greenhouse gas and it leads to ozone depletion through photo-chemical nitric oxide (NO) production in the stratosphere. Mitigating its steady increase in atmospheric concentration requires an understanding of the mec...

journal_title：Frontiers in microbiology

authors： Schreiber F,Wunderlin P,Udert KM,Wells GF

更新日期：2012-10-23 00:00:00

abstract：:Molasses are sub-products of the sugar industry, rich in sucrose and containing other sugars like raffinose, glucose, and fructose. Alpha-galactosidases (EC. 3.2.1.22) catalyze the hydrolysis of alpha-(1,6) bonds of galactose residues in galacto-oligosaccharides (melibiose, raffinose, and stachyose) and complex galact...

journal_title：Frontiers in microbiology

authors： Álvarez-Cao ME,Cerdán ME,González-Siso MI,Becerra M

更新日期：2019-03-07 00:00:00

abstract：:This mini-review describes three biological systems. All three include competing molecules and a limiting molecule that binds the competing molecules. Such systems are extensively researched by economists. In fact, the issue of limited resources is the defining feature of economic systems. Therefore, we call these sys...

journal_title：Frontiers in microbiology

authors： Polansky H,Javaherian A

更新日期：2016-03-23 00:00:00

abstract：:The objective of this experiment was to compare ruminal fluid samples collected through rumen cannula (RC) or using an oral stomach tube (ST) for measurement of ruminal fermentation and microbiota variables. Six ruminally cannulated lactating Holstein cows fed a standard diet were used in the study. Rumen samples were...

journal_title：Frontiers in microbiology

authors： de Assis Lage CF,Räisänen SE,Melgar A,Nedelkov K,Chen X,Oh J,Fetter ME,Indugu N,Bender JS,Vecchiarelli B,Hennessy ML,Pitta D,Hristov AN

更新日期：2020-12-23 00:00:00

abstract：:While vitamin B(12) has recently been shown to co-limit the growth of coastal phytoplankton assemblages, the cycling of B-vitamins in coastal ecosystems is poorly understood as planktonic uptake rates of vitamins B(1) and B(12) have never been quantified in tandem in any aquatic ecosystem. The goal of this study was t...

journal_title：Frontiers in microbiology

authors： Koch F,Hattenrath-Lehmann TK,Goleski JA,Sañudo-Wilhelmy S,Fisher NS,Gobler CJ

更新日期：2012-10-12 00:00:00

abstract：:The development of a safe and efficient multivalent vaccine has great prospects for application. Both rabies virus (RABV) and canine distemper virus (CDV) are highly infectious antigens, causing lethal diseases in domestic dogs and other carnivores worldwide. In this study, a replication-deficient human adenovirus 5 (...

journal_title：Frontiers in microbiology

authors： Yan L,Zhao Z,Xue X,Zheng W,Xu T,Liu L,Tian L,Wang X,He H,Zheng X

更新日期：2020-06-16 00:00:00

abstract：:Bacterial biofilms have clear implications in disease and in food applications involving probiotics. Here, we show that switching the carbohydrate source from glucose to fructose increased the biofilm formation and the total surface-antigenicity of a well-known probiotic, Lactobacillus rhamnosus GG. Surfaceomes (all c...

journal_title：Frontiers in microbiology

authors： Savijoki K,Nyman TA,Kainulainen V,Miettinen I,Siljamäki P,Fallarero A,Sandholm J,Satokari R,Varmanen P

更新日期：2019-06-05 00:00:00

abstract：:Studies using a fungal model, Saccharomyces cerevisiae, have been instrumental in advancing our understanding of sulfur metabolism in eukaryotes. Sulfur metabolites, particularly methionine and its derivatives, induce anabolic programs in yeast, and drive various processes integral to metabolism (one-carbon metabolism...

journal_title：Frontiers in microbiology

authors： Walvekar AS,Laxman S

更新日期：2019-11-15 00:00:00

abstract：:Colistin is considered the last-resort antibiotic used to treat multidrug resistant bacteria-related infections. However, the discovery of the plasmid-mediated colistin resistance gene, mcr-1, threatens the clinical utility of colistin antibiotics. In this study, the physiological function of MCR-1, which encodes an L...

journal_title：Frontiers in microbiology

authors： Li B,Yin F,Zhao X,Guo Y,Wang W,Wang P,Zhu H,Yin Y,Wang X

更新日期：2020-01-10 00:00:00

abstract：:The time-to-result for culture-based microorganism recovery and phenotypic antimicrobial susceptibility testing necessitates initial use of empiric (frequently broad-spectrum) antimicrobial therapy. If the empiric therapy is not optimal, this can lead to adverse patient outcomes and contribute to increasing antibiotic...

journal_title：Frontiers in microbiology

authors： Pesesky MW,Hussain T,Wallace M,Patel S,Andleeb S,Burnham CD,Dantas G

更新日期：2016-11-28 00:00:00

abstract：:In this article we compare the efficacy of different pharmacological agents (ranitidine, and omeprazole) to support phage transit from stomach to distal portions of the gastrointestinal tract in rats. We show that a temporal modification of environment in the animal stomach may protect Twort-like therapeutic antistaph...

journal_title：Frontiers in microbiology

authors： Międzybrodzki R,Kłak M,Jończyk-Matysiak E,Bubak B,Wójcik A,Kaszowska M,Weber-Dąbrowska B,Łobocka M,Górski A

更新日期：2017-03-23 00:00:00

abstract：:Although the mechanisms that precisely time initiation of chromosome replication in bacteria remain unclear, most clock models are based on accumulation of the active initiator protein, DnaA-ATP. During each cell division cycle, sufficient DnaA-ATP must become available to interact with a distinct set of low affinity ...

journal_title：Frontiers in microbiology

authors： Rao P,Rozgaja TA,Alqahtani A,Grimwade JE,Leonard AC

更新日期：2018-07-26 00:00:00

abstract：:Soil dwelling Streptomyces species are faced with large variations in carbon or nitrogen sources, phosphate, oxygen, iron, sulfur, and other nutrients. These drastic changes in key nutrients result in an unbalanced metabolism that have undesirable consequences for growth, cell differentiation, reproduction, and second...

journal_title：Frontiers in microbiology

authors： Martín JF,Liras P

更新日期：2020-01-22 00:00:00

abstract：:Bacterial biofilms have an impact in medical and industrial environments because they often confer protection to bacteria against harmful agents, and constitute a source from which microorganisms can disperse. Conjugative plasmids can enhance bacterial ability to form biofilms because conjugative pili act as adhesion ...

journal_title：Frontiers in microbiology

authors： Gama JA,Fredheim EGA,Cléon F,Reis AM,Zilhão R,Dionisio F

更新日期：2020-08-26 00:00:00

abstract：:The genus Crinivirus includes the whitefly-transmitted members of the family Closteroviridae. Whitefly-transmitted viruses have emerged as a major problem for world agriculture and are responsible for diseases that lead to losses measured in the billions of dollars annually. Criniviruses emerged as a major agricultura...

journal_title：Frontiers in microbiology

authors： Tzanetakis IE,Martin RR,Wintermantel WM

更新日期：2013-05-16 00:00:00

abstract：:Biogenic transformation of Fe minerals, associated with extracellular electron transfer (EET), allows microorganisms to exploit high-potential refractory electron acceptors for energy generation. EET-capable thermophiles are dominated by hyperthermophilic archaea and Gram-positive bacteria. Information on their EET pa...

journal_title：Frontiers in microbiology

authors： Gavrilov SN,Zavarzina DG,Elizarov IM,Tikhonova TV,Dergousova NI,Popov VO,Lloyd JR,Knight D,El-Naggar MY,Pirbadian S,Leung KM,Robb FT,Zakhartsev MV,Bretschger O,Bonch-Osmolovskaya EA

更新日期：2021-01-11 00:00:00

abstract：BACKGROUND:Antibiotic treatment of chronic Q fever is cumbersome and of long duration. To monitor treatment, there is a need for alternative biomarkers. Coxiella burnetii-specific interferon (IFN)-γ and interleukin (IL)-2 production reflect the type of effector and memory T-cell response. In chronic Q fever, C. burneti...

journal_title：Frontiers in microbiology

authors： Schoffelen T,Wegdam-Blans MC,Ammerdorffer A,Pronk MJ,Soethoudt YE,Netea MG,van der Meer JW,Bleeker-Rovers CP,van Deuren M

更新日期：2015-02-12 00:00:00

abstract：:To assess the diversity and composition of airborne fungi associated with particulate matters (PMs) in Beijing, China, a total of 81 PM samples were collected, which were derived from PM2.5, PM10 fractions, and total suspended particles during haze and non-haze days. The airborne fungal community in these samples was ...

journal_title：Frontiers in microbiology

authors： Yan D,Zhang T,Su J,Zhao LL,Wang H,Fang XM,Zhang YQ,Liu HY,Yu LY

更新日期：2016-04-14 00:00:00

abstract：OBJECTIVES:The purpose of this study was to investigate the prevalence of extended spectrum β-lactamase (ESBL) genes in Escherichia coli isolated from post-weaning diarrhea (PWD) piglets in Heilongjiang province, China. METHODS:Of 458 E. coli isolated from 589 fecal samples from PWD piglets, a total of 198 isolates we...

journal_title：Frontiers in microbiology

authors： Xu G,An W,Wang H,Zhang X

更新日期：2015-10-08 00:00:00

abstract：:Nowadays, contamination of agricultural commodities with fungi and their mycotoxins is one of the most annoying with regard to food safety and pose serious health risk. Therefore, there is a requisite to propose suitable mitigation strategies to reduce the contamination of fungi and mycotoxins in agricultural commodit...

journal_title：Frontiers in microbiology

authors： Kalagatur NK,Kamasani JR,Siddaiah C,Gupta VK,Krishna K,Mudili V

更新日期：2018-07-31 00:00:00

abstract：:RNA viruses have a great potential for genetic variation, rapid evolution and adaptation. Characterization of the genetic variation of viral populations provides relevant information on the processes involved in virus evolution and epidemiology and it is crucial for designing reliable diagnostic tools and developing e...

journal_title：Frontiers in microbiology

authors： Rubio L,Guerri J,Moreno P

更新日期：2013-06-26 00:00:00

abstract：:Sulfate-reducing bacteria such as Desulfovibrio vulgaris Hildenborough are often found in environments with limiting growth nutrients. Using lactate as the electron donor and carbon source, and sulfate as the electron acceptor, wild type D. vulgaris shows motility on soft agar plates. We evaluated this phenotype with ...

journal_title：Frontiers in microbiology

authors： Ray J,Keller KL,Catena M,Juba TR,Zemla M,Rajeev L,Knierim B,Zane GM,Robertson JJ,Auer M,Wall JD,Mukhopadhyay A

更新日期：2014-03-06 00:00:00

abstract：:Bacterial conjugation is one of the most important mechanisms for spread of antibiotic resistance among bacteria. We have previously demonstrated that cefotaxime (CTX) exposure up-regulates expression of Type-IV conjugation transfer genes, and that this leads to increased transfer of a blaCTX-M-1 encoding IncI1 resist...

journal_title：Frontiers in microbiology

authors： Liu G,Olsen JE,Thomsen LE

更新日期：2019-09-24 00:00:00

abstract：:Probiotic bacteria, according to the definition adopted by the World Health Organization in 2002, are live microorganisms, which when administered in adequate amounts confer a health benefit to the host. Recent studies show that the same probiotic strain produced and/or preserved under different storage conditions, ma...

journal_title：Frontiers in microbiology

authors： Vinderola G,Binetti A,Burns P,Reinheimer J

更新日期：2011-05-03 00:00:00

abstract：:Background: The gut microbiota is increasingly recognized as playing an important role in the development of obesity, but the influence of gender remains elusive. Using a large cohort of Chinese adults, our study aimed to identify differences in gut microbiota as a function of body mass index (BMI) and investigate gen...

journal_title：Frontiers in microbiology

authors： Gao X,Zhang M,Xue J,Huang J,Zhuang R,Zhou X,Zhang H,Fu Q,Hao Y

更新日期：2018-06-22 00:00:00

abstract：:[This corrects the article DOI: 10.3389/fmicb.2019.02612.]. ...

journal_title：Frontiers in microbiology

authors： Treven P,Mahnič A,Rupnik M,Golob M,Pirš T,Matijašić BB,Lorbeg PM

更新日期：2020-01-29 00:00:00

abstract：:Pseudomonas syringae pv. tomato DC3000 carries the wssABCDEFGHI operon for the synthesis of acetylated cellulose, whose production is stimulated by increasing the intracellular levels of the second messenger c-di-GMP. This enhances air-liquid biofilm formation and generates a wrinkly colony morphotype in solid media. ...

journal_title：Frontiers in microbiology

authors： Pérez-Mendoza D,Felipe A,Ferreiro MD,Sanjuán J,Gallegos MT

更新日期：2019-04-17 00:00:00