Shifts in methanogenic community composition and methane fluxes along the degradation of discontinuous permafrost.

abstract：:C-di-GMP has been well investigated to play significant roles in the physiology of many Gram-negative bacteria. However, its effect on Gram-positive bacteria is less known. In order to more understand the c-di-GMP functions in Gram-positive bacteria, we have carried out a detailed study on the c-di-GMP-metabolizing en...

journal_title：Frontiers in microbiology

authors： Fu Y,Yu Z,Liu S,Chen B,Zhu L,Li Z,Chou SH,He J

更新日期：2018-02-13 00:00:00

abstract：:An extended multilocus sequence analysis (MLSA) scheme applicable to the Brucella, an expanding genus that includes zoonotic pathogens that severely impact animal and human health across large parts of the globe, was developed. The scheme, which extends a previously described nine locus scheme by examining sequences a...

journal_title：Frontiers in microbiology

authors： Whatmore AM,Koylass MS,Muchowski J,Edwards-Smallbone J,Gopaul KK,Perrett LL

更新日期：2016-12-21 00:00:00

abstract：:Two pools of individual single gene deletion (SGD) mutants of S. Typhimurium 14028s encompassing deletions of 3,923 annotated non-essential ORFs and sRNAs were screened by intraperitoneal (IP) injection in BALB/c mice followed by recovery from spleen and liver 2 days post infection. The relative abundance of each muta...

journal_title：Frontiers in microbiology

authors： Silva-Valenzuela CA,Molina-Quiroz RC,Desai P,Valenzuela C,Porwollik S,Zhao M,Hoffman RM,Andrews-Polymenis H,Contreras I,Santiviago CA,McClelland M

更新日期：2016-01-05 00:00:00

abstract：:Avian influenza A viruses (AIVs) have a broad host range, but are most intimately associated with waterfowl (Anseriformes) and, in the case of the H13 and H16 subtypes, gulls (Charadriiformes). Host associations are multifactorial, but a key factor is the ability of the virus to bind host cell receptors and thereby in...

journal_title：Frontiers in microbiology

authors： Eriksson P,Lindskog C,Lorente-Leal V,Waldenström J,González-Acuna D,Järhult JD,Lundkvist Å,Olsen B,Jourdain E,Ellström P

更新日期：2019-04-18 00:00:00

abstract：:Haemophilus parasuis is known as a commensal organism discovered in the upper respiratory tract of swine where the pathogenic bacteria survive in various adverse environmental stress. QseC, a histidine protein kinase of the two-component regulatory systems CheY/QseC, is involved in the environmental adaptation in bact...

journal_title：Frontiers in microbiology

authors： He L,Dai K,Wen X,Ding L,Cao S,Huang X,Wu R,Zhao Q,Huang Y,Yan Q,Ma X,Han X,Wen Y

更新日期：2018-02-13 00:00:00

abstract：:In most bacteria, iron plays a vital role in pathogenesis processes. To support survival and infection, Streptococcus pneumoniae has evolved three ABC transporters, PiaABC, PiuABC, and PitABC. Moreover, indirect evidence supports that operon 804 may be a novel ABC transporter in S. pneumoniae. We have recently describ...

journal_title：Frontiers in microbiology

authors： Yang XY,Li N,Xu JY,Sun X,He QY

更新日期：2019-07-30 00:00:00

abstract：:Pharmaceutical contaminants (PCs) have been recognized as emerging contaminants causing unexpected consequences to environment and humans. There is an urgent need for development of efficient technologies to treat these PCs from water. The current study has investigated the removal capacity of a green microalgal speci...

journal_title：Frontiers in microbiology

authors： Xiong JQ,Cui P,Ru S

更新日期：2020-11-03 00:00:00

abstract：:Combatting antimicrobial resistant (AMR) using a One-Health approach is essential as various bacteria, including Escherichia coli, a common bacteria, are becoming increasingly resistant and livestock may be a reservoir. The AMR gene content of 492 E. coli, isolated from 56 pig farms across Great Britain in 2014-2015, ...

journal_title：Frontiers in microbiology

authors： AbuOun M,O'Connor HM,Stubberfield EJ,Nunez-Garcia J,Sayers E,Crook DW,Smith RP,Anjum MF

更新日期：2020-05-25 00:00:00

abstract：:In this study, Taisui TS-2007S, a previously unidentified biological object discovered in soil in China, was identified. TS-2007S was shown to contain abundant carbohydrates but a scarcity of protein, fat, and minerals. The exopolymers of TS-2007S showed FT-IR spectra that were similar to those of xanthan gum (XG) but...

journal_title：Frontiers in microbiology

authors： Su T,Liu H,Zhang C,Shang D,Wang C,Qiu L

更新日期：2020-11-11 00:00:00

abstract：:The competition between sulfate reducing bacteria and methanogens over common substrates has been proposed as a critical control for methane production. In this study, we examined the co-existence of methanogenesis and sulfate reduction with shared substrates over a large range of sulfate concentrations and rates of s...

journal_title：Frontiers in microbiology

authors： Sela-Adler M,Ronen Z,Herut B,Antler G,Vigderovich H,Eckert W,Sivan O

更新日期：2017-05-05 00:00:00

abstract：:The etiology of periodontitis has traditionally been associated to a consortium of three bacterial species-the so-called "red-complex" of periodontal disease-which has been the target for most diagnostic and therapeutic strategies. However, other species have also been found to correlate with disease severity. In addi...

journal_title：Frontiers in microbiology

authors： Camelo-Castillo AJ,Mira A,Pico A,Nibali L,Henderson B,Donos N,Tomás I

更新日期：2015-02-24 00:00:00

abstract：:The new era of multidrug resistance of pathogens against frontline antibiotics has compromised the immense therapeutic gains of the 'golden age,' stimulating a resurgence in antimicrobial research focused on antimicrobial and immunomodulatory components of botanical, fungal or microbial origin. While much valuable inf...

journal_title：Frontiers in microbiology

authors： Sadgrove NJ,Jones GL

更新日期：2019-10-31 00:00:00

abstract：:The sulbactam resistance rate in Acinetobacter baumannii has increased worldwide. Previous reports have shown that the β-lactamase bla TEM-1 confers resistance to sulbactam in A. baumannii. The purpose of this study was to examine whether other β-lactamases, including the Acinetobacter-derived cephalosporinase (ADC), ...

journal_title：Frontiers in microbiology

authors： Kuo SC,Lee YT,Yang Lauderdale TL,Huang WC,Chuang MF,Chen CP,Su SC,Lee KR,Chen TL

更新日期：2015-03-25 00:00:00

abstract：:Early nutrition of pullets could determine the overall development and the performance of laying hens. With the aim to reduce the use of antibiotic growth promoters (AGPs) and to maintain the growth and development of pullets, the effect of simultaneous short-termed supplementation of AGPs (bacitracin zinc 20 mg/kg an...

journal_title：Frontiers in microbiology

authors： Li X,Wu S,Li X,Yan T,Duan Y,Yang X,Duan Y,Sun Q,Yang X

更新日期：2018-10-12 00:00:00

abstract：:Guanylate kinases (GKs), which convert guanosine monophosphate into guanosine diphosphate (GDP), are important for growth and mannose outer chain elongation of cell wall N-linked glycoproteins in yeast. Here, we identified the ortholog of Saccharomyces cerevisiae GK Guk1, named MoGuk1 and a novel family of fungal GKs ...

journal_title：Frontiers in microbiology

authors： Cai X,Zhang X,Li X,Liu M,Liu X,Wang X,Zhang H,Zheng X,Zhang Z

更新日期：2017-12-11 00:00:00

abstract：:Single molecule, real-time (SMRT) sequencing was used to characterize mitochondrial (mt) genome of Ophiocordyceps sinensis and to analyze the mt genome-wide pattern of epigenetic DNA modification. The complete mt genome of O. sinensis, with a size of 157,539 bp, is the fourth largest Ascomycota mt genome sequenced to ...

journal_title：Frontiers in microbiology

authors： Kang X,Hu L,Shen P,Li R,Liu D

更新日期：2017-07-27 00:00:00

abstract：:The use of antibiotic agents as growth promoters was banned in animal husbandry to prevent the selection and spread of antibiotic resistance. However, in addition to antibiotic agents, heavy metals used in animal farming and aquaculture might promote the spread of antibiotic resistance via co-selection. To investigate...

journal_title：Frontiers in microbiology

authors： Seiler C,Berendonk TU

更新日期：2012-12-14 00:00:00

abstract：:Rapidly changing concentrations of substrates frequently occur during large-scale microbial cultivations. These changing conditions, caused by large mixing times, result in a heterogeneous population distribution. Here, we present a powerful and efficient modeling approach to predict the influence of varying substrate...

journal_title：Frontiers in microbiology

authors： Nieß A,Löffler M,Simen JD,Takors R

更新日期：2017-06-28 00:00:00

abstract：:Vitamin C is a critical dietary nutrient in human which has a wide range of regulatory effects on gene expression and physiology of Mycobacterium tuberculosis that leads to a dormant drug-tolerant phenotype. In the presence of iron, vitamin C shows a high bactericidal activity even in the drug resistant phenotype of M...

journal_title：Frontiers in microbiology

authors： Mishra A,Sarkar D

更新日期：2015-05-18 00:00:00

abstract：:Ubiquitination is a post-translational modification in which one or more ubiquitin molecules are covalently linked to lysine residues of target proteins. The ubiquitin system plays a key role in the regulation of protein degradation, which contributes to cell signaling, vesicular trafficking, apoptosis, and immune reg...

journal_title：Frontiers in microbiology

authors： Ashizawa A,Higashi C,Masuda K,Ohga R,Taira T,Fujimuro M

更新日期：2012-02-23 00:00:00

abstract：:Babesia species are tick-borne intraerythrocytic protozoa that cause babesiosis in humans worldwide. No vaccine has yet proven effective against Babesia infection. Surface antigens of merozoites are involved in the invasion of erythrocytes by Babesia. Surface antigens may be presented by both babesial sporozoites and ...

journal_title：Frontiers in microbiology

authors： Man S,Fu Y,Guan Y,Feng M,Qiao K,Li X,Gao H,Cheng X

更新日期：2017-12-19 00:00:00

abstract：:Currently, there is little evidence on the in situ antibacterial activity of essential oils (EO) without alcohol. This study aimed to evaluate in situ the substantivity and antiplaque effect on the plaque-like biofilm (PL-biofilm) of two solutions, a traditional formulation that contains EO with alcohol (T-EO) and an ...

journal_title：Frontiers in microbiology

authors： Quintas V,Prada-López I,Carreira MJ,Suárez-Quintanilla D,Balsa-Castro C,Tomás I

更新日期：2017-11-23 00:00:00

abstract：:Genetic diversity of phylogenetic or functional markers is widely used as a proxy of microbial diversity. However, it remains unclear to what extent functional diversity (FD), gene sequence diversity and community functioning are linked. For a range of denitrifying bacteria, we analyzed the relationships between (i) t...

journal_title：Frontiers in microbiology

authors： Salles JF,Le Roux X,Poly F

更新日期：2012-06-12 00:00:00

abstract：:Microorganisms are able to adapt to different environments and evolve rapidly, allowing them to cope with their new environments. Such adaptive response and associated protections toward other lethal stresses, is a crucial survival strategy for a wide spectrum of microorganisms, including food spoilage bacteria, patho...

journal_title：Frontiers in microbiology

authors： Desriac N,Broussolle V,Postollec F,Mathot AG,Sohier D,Coroller L,Leguerinel I

更新日期：2013-10-02 00:00:00

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：:The Gram negative bacterium Yersinia pestis can infect humans by multiple routes to cause plague. Three plague pandemics have occurred and Y. pestis has been linked to biowarfare in the past. The continued risk of plague as a bioweapon has prompted increased research to understand Y. pestis pathogenesis and develop ne...

journal_title：Frontiers in microbiology

authors： Lawrenz MB

更新日期：2010-11-04 00:00:00

abstract：:Granulocytes mediate the first line of defense against infectious diseases in humans as well as animals and they are well known as multitasking cells. They can mediate antimicrobial activity by different strategies depending on the pathogen they encounter. Besides phagocytosis, a key strategy against extracellular pat...

journal_title：Frontiers in microbiology

authors： de Buhr N,Bonilla MC,Jimenez-Soto M,von Köckritz-Blickwede M,Dolz G

更新日期：2018-05-15 00:00:00

abstract：:Current anti-hepatitis B virus (HBV) regimen do not meet ideal result due to emerging resistance strains, cytotoxicity, and unfavorable adverse effects. In chronic HBV infection, high rates of sub-viral particles (SVPs) bearing HBV surface antigen (HBsAg) is a major obstacle regarding to raise effective immune respons...

journal_title：Frontiers in microbiology

authors： Mohebbi A,Lorestani N,Tahamtan A,Kargar NL,Tabarraei A

更新日期：2018-04-05 00:00:00

abstract：Background:The hepatitis E virus (HEV) represents a major cause of acute hepatitis worldwide. The majority of HEV cases occur in low-income countries, mainly Asia and Africa, where HEV causes large outbreaks associated with the consumption of contaminated water and high mortality in specific populations. In high-income...

journal_title：Frontiers in microbiology

authors： Rivero-Juarez A,Lopez-Lopez P,Frias M,Rivero A

更新日期：2019-06-26 00:00:00

abstract：:In Liberibacter asiaticus, PrbP is an important transcriptional accessory protein that was found to regulate gene expression through interactions with the RNA polymerase β-subunit and a specific sequence on the promoter region. It was found that inactivation of PrbP, using the inhibitor tolfenamic acid, resulted in a ...

journal_title：Frontiers in microbiology

authors： Pan L,Gardner CL,Pagliai FA,Gonzalez CF,Lorca GL

更新日期：2017-08-23 00:00:00