A Critical Look at the Combined Use of Sulfur and Oxygen Isotopes to Study Microbial Metabolisms in Methane-Rich Environments.

abstract：:Lignocellulosic biomass is a renewable and sustainable energy source. Cellulases are the enzymes that cleave β-1, 4-glycosidic linkages in cellulose to liberate sugars that can be fermented to ethanol, butanol, and other products. Low enzyme activity and yield, and thermostability are, however, some of the limitations...

journal_title：Frontiers in microbiology

authors： Dadwal A,Sharma S,Satyanarayana T

更新日期：2020-06-24 00:00:00

abstract：:Climate, soil, and grape varieties are the primary characteristics of terroir and lead to the definition of various appellations of origin. However, the microbiota associated with grapes are also affected by these conditions and can leave a footprint in a wine that will be part of the characteristics of terroir. Thus,...

journal_title：Frontiers in microbiology

authors： Padilla B,García-Fernández D,González B,Izidoro I,Esteve-Zarzoso B,Beltran G,Mas A

更新日期：2016-06-15 00:00:00

abstract：:This study investigated the effects of dietary essential oils (EOs) on intestinal microbial composition and metabolic profiles in weaned piglets. The piglets were fed the same basal diet supplemented with EOs (EO) or without EOs (Con) in the current study. The results showed that the body weight gain was significantly...

journal_title：Frontiers in microbiology

authors： Li Y,Fu X,Ma X,Geng S,Jiang X,Huang Q,Hu C,Han X

更新日期：2018-08-28 00:00:00

abstract：:There is an urgent need for new antibiotics and alternative strategies to combat multidrug-resistant bacterial pathogens, which are a growing clinical issue. Repurposing existing approved drugs with known pharmacology and toxicology is an alternative strategy to accelerate antimicrobial research and development. In th...

journal_title：Frontiers in microbiology

authors： Thangamani S,Younis W,Seleem MN

更新日期：2015-07-28 00:00:00

abstract：:In this study, we investigated the pattern of antimicrobial resistance in Salmonella enterica serotype Enteritidis isolates in Shanghai, China from 2005 to 2014. We found the first isolates with resistance to the fourth-generation cephalosporin cefepime starting in 2010. Furthermore, we analyzed the epidemic character...

journal_title：Frontiers in microbiology

authors： Fu Y,Xu X,Zhang L,Xiong Z,Ma Y,Wei Y,Chen Z,Bai J,Liao M,Zhang J

更新日期：2020-05-15 00:00:00

abstract：:The number of multidrug-resistant strains of Riemerella anatipestifer continues to increase, and new strategies for the treatment of associated infections are necessary. Recently, numerous studies have shown that efflux pumps (EPs) play key roles in universal bacterial mechanisms that contribute to antibiotic resistan...

journal_title：Frontiers in microbiology

authors： Chen Q,Gong X,Zheng F,Ji G,Li S,Stipkovits L,Szathmary S,Liu Y

更新日期：2018-10-01 00:00:00

abstract：:Ramoplanin is a glycolipodepsipeptide antibiotic obtained from fermentation of Actinoplanes sp. ATCC 33076 that exhibits activity against clinically important multi-drug-resistant, Gram-positive pathogens including vancomycin-resistant Enterococcus (VRE), methicillin-resistant Staphylococcus aureus (MRSA), and vancomy...

journal_title：Frontiers in microbiology

authors： de la Cruz M,González I,Parish CA,Onishi R,Tormo JR,Martín J,Peláez F,Zink D,El Aouad N,Reyes F,Genilloud O,Vicente F

更新日期：2017-03-06 00:00:00

abstract：:Divergence of paralogous pairs, resulting from gene duplication, plays an important role in the evolution of specialized or novel gene functions. Analysis of selected duplicated pairs has elucidated some of the mechanisms underlying the functional diversification of Saccharomyces cerevisiae (S. cerevisiae) paralogous ...

journal_title：Frontiers in microbiology

authors： Aguirre-López B,Escalera-Fanjul X,Hersch-González J,Rojas-Ortega E,El-Hafidi M,Lezama M,González J,Bianchi MM,López G,Márquez D,Scazzocchio C,Riego-Ruiz L,González A

更新日期：2020-08-04 00:00:00

abstract：:Through the expression of the accessory gene regulator quorum sensing cascade, Staphylococcus aureus is able to produce an extensive array of enzymes, hemolysins and immunomodulators essential to its ability to spread through the host tissues and cause disease. Many have argued for the discovery and development of quo...

journal_title：Frontiers in microbiology

authors： Quave CL,Horswill AR

更新日期：2014-12-12 00:00:00

abstract：:Fusarium head blight (FHB) is a disease of cereal crops caused by trichothecene producing Fusarium species. Trichothecenes, macrocylicic fungal metabolites composed of three fused rings (A-C) with one epoxide functionality, are a class of mycotoxins known to inhibit protein synthesis in eukaryotic ribosomes. These tox...

journal_title：Frontiers in microbiology

authors： Foroud NA,Shank RA,Kiss D,Eudes F,Hazendonk P

更新日期：2016-08-17 00:00:00

abstract：:Metabolic disorders associated with obesity and cardiometabolic disorders are worldwide epidemic. Among the different environmental factors, the gut microbiota is now considered as a key player interfering with energy metabolism and host susceptibility to several non-communicable diseases. Among the next-generation be...

journal_title：Frontiers in microbiology

authors： Cani PD,de Vos WM

更新日期：2017-09-22 00:00:00

abstract：:Aquilaria malaccensis Lam, commonly known as Agarwood, is a highly valuable species used in production of agar oil from its infected wood, which is utilized in pharmaceutical and perfumery industry. Agar oil formation in agarwood takes years through the natural process which is induced by natural or artificial injury ...

journal_title：Frontiers in microbiology

authors： Chhipa H,Kaushik N

更新日期：2017-07-11 00:00:00

abstract：:The habitability of Mars is determined by the physical and chemical environment. The effect of low water availability, temperature, low atmospheric pressure and strong UV radiation has been extensively studied in relation to the survival of microorganisms. In addition to these stress factors, it was recently found tha...

journal_title：Frontiers in microbiology

authors： Bak EN,Larsen MG,Moeller R,Nissen SB,Jensen LR,Nørnberg P,Jensen SJK,Finster K

更新日期：2017-09-12 00:00:00

abstract：:Tuberculosis (TB) recurrence can result from either relapse of an original infection or exogenous reinfection with a new strain of Mycobacterium tuberculosis (MTB). The aim of this study was to assess the roles of relapse and reinfection among recurrent TB cases characterized by a high prevalence rate of drug-resistan...

journal_title：Frontiers in microbiology

authors： Zong Z,Huo F,Shi J,Jing W,Ma Y,Liang Q,Jiang G,Dai G,Huang H,Pang Y

更新日期：2018-08-14 00:00:00

abstract：:We investigated the interactions of air and snow over one entire winter accumulation period as well as the importance of chemical markers in a pristine free-tropospheric environment to explain variation in a microbiological dataset. To overcome the limitations of short term bioaerosol sampling, we sampled the atmosphe...

journal_title：Frontiers in microbiology

authors： Els N,Greilinger M,Reisecker M,Tignat-Perrier R,Baumann-Stanzer K,Kasper-Giebl A,Sattler B,Larose C

更新日期：2020-05-20 00:00:00

abstract：:The regulator of citrate metabolism, CitO, from Enterococcus faecalis belongs to the FCD family within the GntR superfamily. In the presence of citrate, CitO binds to cis-acting sequences located upstream of the cit promoters inducing the expression of genes involved in citrate utilization. The quantification of the m...

journal_title：Frontiers in microbiology

authors： Blancato VS,Pagliai FA,Magni C,Gonzalez CF,Lorca GL

更新日期：2016-02-09 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：:Globally the change towards the establishment of a bio-based economy has resulted in an increased need for bio-based applications. This, in turn, has served as a driving force for the discovery and application of novel biosurfactants. The class Actinobacteria represents a vast group of microorganisms with the ability ...

journal_title：Frontiers in microbiology

authors： Kügler JH,Le Roes-Hill M,Syldatk C,Hausmann R

更新日期：2015-03-19 00:00:00

abstract：:Despite recent recognition of the ATP-binding cassette protein OptrA as an important mediator of linezolid resistance in Enterococcus faecalis worldwide, the mechanisms of optrA gene acquisition and transfer remain poorly understood. In this study, we performed comprehensive molecular and phenotypic profiling of 44 op...

journal_title：Frontiers in microbiology

authors： Zou J,Tang Z,Yan J,Liu H,Chen Y,Zhang D,Zhao J,Tang Y,Zhang J,Xia Y

更新日期：2020-06-04 00:00:00

abstract：:The biocontrol fungus Trichoderma longibrachiatum SMF2 secretes a large quantity of peptaibols that have been shown to have a range of biological activities and therefore great application values. However, the mechanism of the regulatory expression of peptaibols is still unclear. The putative methyltransferase LaeA/LA...

journal_title：Frontiers in microbiology

authors： Shi JC,Shi WL,Zhou YR,Chen XL,Zhang YZ,Zhang X,Zhang WX,Song XY

更新日期：2020-06-12 00:00:00

abstract：:Foodborne diseases (FBDs) are infections of the gastrointestinal tract caused by foodborne pathogens (FBPs) such as bacteria [Salmonella, Listeria monocytogenes and Shiga toxin-producing E. coli (STEC)] and several viruses, but also parasites and some fungi. Artificial intelligence (AI) and its sub-discipline machine ...

journal_title：Frontiers in microbiology

authors： Vilne B,Meistere I,Grantiņa-Ieviņa L,Ķibilds J

更新日期：2019-08-06 00:00:00

abstract：:Harmful cyanobacterial blooms have severely impaired freshwater quality and threatened human health worldwide. Here, a Gram-positive bacterium, Bacillus sp. strain S51107, which exhibits strong algicidal activity against Microcystis aeruginosa, was isolated from Lake Taihu. We found that the algicidal activity of stra...

journal_title：Frontiers in microbiology

authors： Wu L,Guo X,Liu X,Yang H

更新日期：2017-10-11 00:00:00

abstract：:Bacterial secondary metabolites possess a wide range of biologically active compounds including antibacterial and antioxidants. In this study, a Gram-positive novel marine Actinobacteria was isolated from sea sediment which showed 84% 16S rRNA gene sequence (KT588655) similarity with Streptomyces variabilis (EU841661)...

journal_title：Frontiers in microbiology

authors： Dholakiya RN,Kumar R,Mishra A,Mody KH,Jha B

更新日期：2017-12-07 00:00:00

abstract：:The objective of this study was to investigate the ability of a culture highly enriched with the polyphosphate-accumulating organism, "Candidatus Accumulibacter phosphatis" clade IIC, to adjust their metabolism to different phosphate availabilities. For this purpose the biomass was cultivated in a sequencing batch rea...

journal_title：Frontiers in microbiology

authors： Welles L,Abbas B,Sorokin DY,Lopez-Vazquez CM,Hooijmans CM,van Loosdrecht MC,Brdjanovic D

更新日期：2017-01-05 00:00:00

abstract：:Salmonella enterica causes substantial morbidity and mortality in humans and animals. Infection and intestinal colonization by S. enterica require virulence factors that mediate bacterial binding and invasion of enterocytes and innate immune cells. Some S. enterica colonization factors and their alleles are host restr...

journal_title：Frontiers in microbiology

authors： Yue M,Schifferli DM

更新日期：2014-01-07 00:00:00

abstract：:The intestinal microbiota is a complex microbial community, with diverse and stable populations hosted by the gastrointestinal tract since birth. This ecosystem holds multiple anti-infectious, anti-inflammatory, and immune modulating roles decisive for intestinal homeostasis. Among these, colonization resistance refer...

journal_title：Frontiers in microbiology

authors： Iacob S,Iacob DG,Luminos LM

更新日期：2019-01-23 00:00:00

abstract：:Bacteria in natural habitats are exposed to myriad redox-active compounds (RACs), which include producers of reactive oxygen species (ROS) and reactive electrophile species (RES) that alkylate or oxidize thiols. RACs can induce oxidative stress in cells and activate response pathways by modulating the activity of sens...

journal_title：Frontiers in microbiology

authors： Lee KL,Yoo JS,Oh GS,Singh AK,Roe JH

更新日期：2017-02-02 00:00:00

abstract：:The Solfatara volcano near Naples (Italy), the origin of the recently discovered verrucomicrobial methanotroph Methylacidiphilum fumariolicum SolV was shown to contain ammonium ([Formula: see text]) at concentrations ranging from 1 to 28 mM. Ammonia (NH3) can be converted to toxic hydroxylamine (NH2OH) by the particul...

journal_title：Frontiers in microbiology

authors： Mohammadi SS,Pol A,van Alen T,Jetten MSM,Op den Camp HJM

更新日期：2017-09-27 00:00:00

abstract：:The marine picocyanobacterium Synechococcus sp. WH7803 possesses two glutamine synthetases (GSs; EC 6.3.1.2), GSI encoded by glnA and GSIII encoded by glnN. This is the first work addressing the physiological regulation of both enzymes in a marine cyanobacterial strain. The increase of GS activity upon nitrogen starva...

journal_title：Frontiers in microbiology

authors： Domínguez-Martín MA,Díez J,García-Fernández JM

更新日期：2016-06-28 00:00:00

abstract：:Cefoperazone/sulbactam has been shown to be efficacious for the treatment of infections caused by Acinetobacter baumannii; however, the mechanism underlying resistance to this synergistic combination is not well understood. In the present study, two A. baumannii isolates, AB1845 and AB2092, were isolated from a patien...

journal_title：Frontiers in microbiology

authors： Liu X,Zheng H,Zhang W,Shen Z,Zhao M,Chen Y,Sun L,Shi J,Zhang J

更新日期：2016-08-19 00:00:00