abstract：:Some species of ruminal bacteria are known to produce antimicrobial peptides, but the screening procedures have mostly been based on in vitro assays using standardized methods. Recent sequencing efforts have made available the genome sequences of hundreds of ruminal microorganisms. In this work, we performed genome mi...

journal_title：Applied and environmental microbiology

authors： Azevedo AC,Bento CB,Ruiz JC,Queiroz MV,Mantovani HC

更新日期：2015-10-01 00:00:00

abstract：:Microbiological, genomic and transcriptomic analyses were used to examine three species from the bacterial genus Caldicellulosiruptor with respect to their capacity to convert the carbohydrate content of lignocellulosic biomass at 70°C to simple sugars, acetate, lactate, CO2, and H2. Caldicellulosiruptor bescii, C. kr...

journal_title：Applied and environmental microbiology

authors： Zurawski JV,Conway JM,Lee LL,Simpson HJ,Izquierdo JA,Blumer-Schuette S,Nookaew I,Adams MW,Kelly RM

更新日期：2015-10-01 00:00:00

abstract：:The cholera toxin genes of Vibrio cholerae are encoded by CTXΦ, a lysogenic bacteriophage. Infection with this phage plays a determinant role in toxigenicity conversion and the emergence of new clones of pathogenic V. cholerae. Multiple phage alleles, defined by sequence types of the repressor gene rstR, have been fou...

journal_title：Applied and environmental microbiology

authors： Wang H,Pang B,Xiong L,Wang D,Wang X,Zhang L,Kan B

更新日期：2015-10-01 00:00:00

abstract：:Azospirillum is a rhizobacterial genus containing plant growth-promoting species associated with different crops worldwide. Azospirillum brasilense strains exhibit a growth-promoting effect by means of phytohormone production and possibly by N2 fixation. However, one of the most important factors for achieving an incr...

journal_title：Applied and environmental microbiology

authors： Stets MI,Alqueres SM,Souza EM,Pedrosa Fde O,Schmid M,Hartmann A,Cruz LM

更新日期：2015-10-01 00:00:00

abstract：:This study aimed at assessing the dynamics of lactic acid bacteria and other Firmicutes associated with durum wheat organs and processed products. 16S rRNA gene-based high-throughput sequencing showed that Lactobacillus, Streptococcus, Enterococcus, and Lactococcus were the main epiphytic and endophytic genera among l...

journal_title：Applied and environmental microbiology

authors： Minervini F,Celano G,Lattanzi A,Tedone L,De Mastro G,Gobbetti M,De Angelis M

更新日期：2015-10-01 00:00:00

abstract：:Aquaglyceroporins (GlpFs) that transport glycerol along with water and other uncharged solutes are involved in osmoregulation in myriad species. Fungal species form a large group of eukaryotic organisms, and their GlpFs may be diverse, exhibiting various activities. However, few filamentous fungal GlpFs have been biol...

journal_title：Applied and environmental microbiology

authors： Liu XD,Wei Y,Zhou XY,Pei X,Zhang SH

更新日期：2015-10-01 00:00:00

abstract：:ω-Transaminase (ω-TA) is a promising enzyme for use in the production of unnatural amino acids from keto acids using cheap amino donors such as isopropylamine. The small substrate-binding pocket of most ω-TAs permits entry of substituents no larger than an ethyl group, which presents a significant challenge to the pre...

journal_title：Applied and environmental microbiology

authors： Han SW,Park ES,Dong JY,Shin JS

更新日期：2015-10-01 00:00:00

abstract：:Currently, it is estimated that only 0.001% to 15% of bacteria in any given system can be cultured by use of commonly used techniques and media, yet culturing is critically important for investigations of bacterial function. Despite this situation, few studies have attempted to link culture-dependent and culture-indep...

journal_title：Applied and environmental microbiology

authors： Walke JB,Becker MH,Hughey MC,Swartwout MC,Jensen RV,Belden LK

更新日期：2015-10-01 00:00:00

abstract：:In this study, host-associated molecular markers and bacterial 16S rRNA gene community analysis using high-throughput sequencing were used to identify the sources of fecal pollution in environmental waters in Brisbane, Australia. A total of 92 fecal and composite wastewater samples were collected from different host g...

journal_title：Applied and environmental microbiology

authors： Ahmed W,Staley C,Sadowsky MJ,Gyawali P,Sidhu JP,Palmer A,Beale DJ,Toze S

更新日期：2015-10-01 00:00:00

abstract：:An outstanding challenge toward efficient production of biofuels and value-added chemicals from plant biomass is the impact that lignocellulose-derived inhibitors have on microbial fermentations. Elucidating the mechanisms that underlie their toxicity is critical for developing strategies to overcome them. Here, using...

journal_title：Applied and environmental microbiology

authors： Pisithkul T,Jacobson TB,O'Brien TJ,Stevenson DM,Amador-Noguez D

更新日期：2015-09-01 00:00:00

abstract：:Submicronic fungal fragments have been observed in in vitro aerosolization experiments. The occurrence of these particles has therefore been suggested to contribute to respiratory health problems observed in mold-contaminated indoor environments. However, the role of submicronic fragments in exacerbating adverse healt...

journal_title：Applied and environmental microbiology

authors： Afanou KA,Straumfors A,Skogstad A,Nayak AP,Skaar I,Hjeljord L,Tronsmo A,Eduard W,Green BJ

更新日期：2015-09-01 00:00:00

abstract：:Streptococcus thermophilus is a facultative anaerobic bacterium that has the ability to grow and survive in aerobic environments, but the mechanism for this remains unclear. In this study, the efeB gene, encoding a dye-decolorizing peroxidase, was identified in the genome of Streptococcus thermophilus CGMCC 7.179, and...

journal_title：Applied and environmental microbiology

authors： Zhang C,Xin Y,Wang Y,Guo T,Lu S,Kong J

更新日期：2015-09-01 00:00:00

abstract：:Aryl-alcohol oxidase (AAO) is an extracellular flavoprotein that supplies ligninolytic peroxidases with H2O2 during natural wood decay. With a broad substrate specificity and highly stereoselective reaction mechanism, AAO is an attractive candidate for studies into organic synthesis and synthetic biology, and yet the ...

journal_title：Applied and environmental microbiology

authors： Viña-Gonzalez J,Gonzalez-Perez D,Ferreira P,Martinez AT,Alcalde M

更新日期：2015-09-01 00:00:00

abstract：:The human pathogen Vibrio vulnificus is the leading cause of seafood-related deaths in the United States. Strains are genotyped on the basis of alleles that correlate with isolation source, with clinical (C)-genotype strains being more often implicated in disease and environmental (E)-genotype strains being more frequ...

journal_title：Applied and environmental microbiology

authors： Williams TC,Ayrapetyan M,Oliver JD

更新日期：2015-09-01 00:00:00

abstract：:The scyphozoan Aurelia aurita is recognized as a key player in marine ecosystems and a driver of ecosystem change. It is thus intensely studied to address ecological questions, although its associations with microorganisms remain so far undescribed. In the present study, the microbiota associated with A. aurita was vi...

journal_title：Applied and environmental microbiology

authors： Weiland-Bräuer N,Neulinger SC,Pinnow N,Künzel S,Baines JF,Schmitz RA

更新日期：2015-09-01 00:00:00

abstract：:Cyanobacterial glycogen-deficient mutants display impaired degradation of light-harvesting phycobilisomes under nitrogen-limiting growth conditions and secrete a suite of organic acids as a putative reductant-spilling mechanism. This genetic background, therefore, represents an important platform to better understand ...

journal_title：Applied and environmental microbiology

authors： Jackson SA,Eaton-Rye JJ,Bryant DA,Posewitz MC,Davies FK

更新日期：2015-09-01 00:00:00

abstract：:Most associations between animals and their gut microbiota are dynamic, involving sustained transfer of food-associated microbial cells into the gut and shedding of microorganisms into the external environment with feces, but the interacting effects of host and microbial factors on the composition of the internal and ...

journal_title：Applied and environmental microbiology

authors： Wong AC,Luo Y,Jing X,Franzenburg S,Bost A,Douglas AE

更新日期：2015-09-01 00:00:00

abstract：:The well-established killing of bacteria by copper surfaces, also called contact killing, is currently believed to be a combined effect of bacterial contact with the copper surface and the dissolution of copper, resulting in lethal bacterial damage. Iron can similarly be released in ionic form from iron surfaces and w...

journal_title：Applied and environmental microbiology

authors： Mathews S,Kumar R,Solioz M

更新日期：2015-09-01 00:00:00

abstract：:Listeria monocytogenes is a foodborne pathogen whose survival in food processing environments may be associated with its tolerance to desiccation. To probe the molecular mechanisms used by this bacterium to adapt to desiccation stress, a transposon library of 11,700 L. monocytogenes mutants was screened, using a micro...

journal_title：Applied and environmental microbiology

authors： Hingston PA,Piercey MJ,Truelstrup Hansen L

更新日期：2015-08-15 00:00:00

abstract：:Genetic competence in Streptococcus mutans is a transient state that is regulated in response to multiple environmental inputs. These include extracellular pH and the concentrations of two secreted peptides, designated CSP (competence-stimulating peptide) and XIP (comX-inducing peptide). The role of environmental cues...

journal_title：Applied and environmental microbiology

authors： Son M,Ghoreishi D,Ahn SJ,Burne RA,Hagen SJ

更新日期：2015-08-15 00:00:00

abstract：:Agmatine, a significant polyamine in bacteria and plants, mostly arises from the decarboxylation of arginine. The functional importance of agmatine in fungi is poorly understood. The metabolism of agmatine and related guanidinium group-containing compounds in Aspergillus niger was explored through growth, metabolite, ...

journal_title：Applied and environmental microbiology

authors： Kumar S,Saragadam T,Punekar NS

更新日期：2015-08-15 00:00:00

abstract：:The utilization by Alcaligenes faecalis of electrodes as the electron donor for denitrification was investigated in this study. The denitrification rate of A. faecalis with a poised potential was greatly enhanced compared with that of the controls without poised potentials. For nitrate reduction, although A. faecalis ...

journal_title：Applied and environmental microbiology

authors： Wang X,Yu P,Zeng C,Ding H,Li Y,Wang C,Lu A

更新日期：2015-08-15 00:00:00

abstract：:Inorganic phosphorus (Pi) is one of the main growth-limiting factors of diazotrophic cyanobacteria. Due to human activity, the availability of Pi has increased in water bodies, resulting in eutrophication and the formation of massive cyanobacterial blooms. In this study, we examined the molecular responses of the cyan...

journal_title：Applied and environmental microbiology

authors： Teikari J,Österholm J,Kopf M,Battchikova N,Wahlsten M,Aro EM,Hess WR,Sivonen K

更新日期：2015-08-01 00:00:00

abstract：:The concentrations of molybdenum (Mo) and 25 other metals were measured in groundwater samples from 80 wells on the Oak Ridge Reservation (ORR) (Oak Ridge, TN), many of which are contaminated with nitrate, as well as uranium and various other metals. The concentrations of nitrate and uranium were in the ranges of 0.1 ...

journal_title：Applied and environmental microbiology

authors： Thorgersen MP,Lancaster WA,Vaccaro BJ,Poole FL,Rocha AM,Mehlhorn T,Pettenato A,Ray J,Waters RJ,Melnyk RA,Chakraborty R,Hazen TC,Deutschbauer AM,Arkin AP,Adams MW

更新日期：2015-08-01 00:00:00

abstract：:Located in southwest China, the Aha watershed is continually contaminated by acid mine drainage (AMD) produced from upstream abandoned coal mines. The watershed is fed by creeks with elevated concentrations of aqueous Fe (total Fe > 1 g/liter) and SO4 (2-) (>6 g/liter). AMD contamination gradually decreases throughout...

journal_title：Applied and environmental microbiology

authors： Sun W,Xiao T,Sun M,Dong Y,Ning Z,Xiao E,Tang S,Li J

更新日期：2015-08-01 00:00:00

abstract：:Because of high diurnal water quality fluctuations in raw municipal wastewater, the use of proportional autosampling over a period of 24 h at municipal wastewater treatment plants (WWTPs) to evaluate carbon, nitrogen, and phosphorus removal has become a standard in many countries. Microbial removal or load estimation ...

journal_title：Applied and environmental microbiology

authors： Mayer RE,Vierheilig J,Egle L,Reischer GH,Saracevic E,Mach RL,Kirschner AK,Zessner M,Sommer R,Farnleitner AH

更新日期：2015-08-01 00:00:00

abstract：:In this study, we examine bacterial attachment and survival on a titanium (Ti) cathode coated with various carbon nanomaterials (CNM): pristine carbon nanotubes (CNT), oxidized carbon nanotubes (O-CNT), oxidized-annealed carbon nanotubes (OA-CNT), carbon black (CB), and reduced graphene oxide (rGO). The carbon nanomat...

journal_title：Applied and environmental microbiology

authors： Zhang Q,Nghiem J,Silverberg GJ,Vecitis CD

更新日期：2015-07-01 00:00:00

abstract：:Cronobacter species are opportunistic pathogens commonly found in the environment. Among the seven Cronobacter species, Cronobacter sakazakii sequence type 4 (ST-4) is predominantly associated with recorded cases of infantile meningitis. This study reports on a 26-month powdered infant formula (PIF) surveillance progr...

journal_title：Applied and environmental microbiology

authors： Yan Q,Wang J,Gangiredla J,Cao Y,Martins M,Gopinath GR,Stephan R,Lampel K,Tall BD,Fanning S

更新日期：2015-07-01 00:00:00

abstract：:Enterobacteriaceae-associated blaCTX-M genes have become globally widespread within the past 30 years. Among isolates from Washington State cattle, Escherichia coli strains carrying blaCTX-M (CTX-M E. coli strains) were absent from a set of 2008 isolates but present in a set of isolates from 2011. On 30 Washington Sta...

journal_title：Applied and environmental microbiology

authors： Davis MA,Sischo WM,Jones LP,Moore DA,Ahmed S,Short DM,Besser TE

更新日期：2015-07-01 00:00:00

abstract：:Leaf-cutter ants use plant matter to culture the obligate mutualistic basidiomycete Leucoagaricus gongylophorus. This fungus mediates ant nutrition on plant resources. Furthermore, other microbes living in the fungus garden might also contribute to plant digestion. The fungus garden comprises a young sector with recen...

journal_title：Applied and environmental microbiology

authors： Somera AF,Lima AM,Dos Santos-Neto ÁJ,Lanças FM,Bacci M Jr

更新日期：2015-07-01 00:00:00

abstract：:The exopolysaccharides (EPSs) produced by some bacteria are potential growth substrates for other bacteria in soil. We used stable-isotope probing (SIP) to identify aerobic soil bacteria that assimilated the cellulose produced by Gluconacetobacter xylinus or the EPS produced by Beijerinckia indica. The latter is a het...

journal_title：Applied and environmental microbiology

authors： Wang X,Sharp CE,Jones GM,Grasby SE,Brady AL,Dunfield PF

更新日期：2015-07-01 00:00:00

abstract：:The bacterium Rhodopseudomonas palustris grows with the aromatic acid benzoate and the alicyclic acid cyclohexanecarboxylate (CHC) as sole carbon sources. The enzymatic steps in an oxygen-independent pathway for CHC degradation have been elucidated, but it was unknown how the CHC operon (badHI aliAB badK) encoding the...

journal_title：Applied and environmental microbiology

authors： Hirakawa H,Hirakawa Y,Greenberg EP,Harwood CS

更新日期：2015-07-01 00:00:00

abstract：:The human gut is host to a diversity of microorganisms, including the single-celled microbial eukaryote Blastocystis. Research has shown that most carriers host a single Blastocystis subtype (ST), which is unusual given the considerable within-host species diversity observed for other microbial genera in this ecosyste...

journal_title：Applied and environmental microbiology

authors： Scanlan PD,Stensvold CR,Cotter PD

更新日期：2015-06-15 00:00:00

abstract：:Recently, the lignin-degrading basidiomycete Pleurotus ostreatus has become a widely used model organism for fungal genomic and transcriptomic analyses. The increasing interest in this species has led to an increasing number of studies analyzing the transcriptional regulation of multigene families that encode extracel...

journal_title：Applied and environmental microbiology

authors： Castanera R,López-Varas L,Pisabarro AG,Ramírez L

更新日期：2015-06-15 00:00:00

abstract：:In order to identify antifungal compounds from natural sources to be used as ingredients in the bakery industry, water/salt-soluble extracts (WSE) from different legume flour hydrolysates obtained by the use of a fungal protease were assayed against Penicillium roqueforti DPPMAF1. The agar diffusion assays allowed the...

journal_title：Applied and environmental microbiology

authors： Rizzello CG,Lavecchia A,Gramaglia V,Gobbetti M

更新日期：2015-06-15 00:00:00

abstract：:Flies may act as potential vectors for the spread of resistant bacteria to different environments. This study was intended to evaluate the presence of Escherichia coli strains resistant to cephalosporins in flies captured in the areas surrounding five broiler farms. Phenotypic and molecular characterization of the res...

journal_title：Applied and environmental microbiology

authors： Solà-Ginés M,González-López JJ,Cameron-Veas K,Piedra-Carrasco N,Cerdà-Cuéllar M,Migura-Garcia L

更新日期：2015-06-01 00:00:00

abstract：:Phenolic compounds are believed to be promising candidates as complementary therapeutics. Maple syrup, prepared by concentrating the sap from the North American maple tree, is a rich source of natural and process-derived phenolic compounds. In this work, we report the antimicrobial activity of a phenolic-rich maple sy...

journal_title：Applied and environmental microbiology

authors： Maisuria VB,Hosseinidoust Z,Tufenkji N

更新日期：2015-06-01 00:00:00

abstract：:Rates of dissolved inorganic carbon (DIC), formate, and acetate mineralization and/or assimilation were determined in 13 high-temperature (>73 °C) hot springs in Yellowstone National Park (YNP), Wyoming, in order to evaluate the relative importance of these substrates in supporting microbial metabolism. While 9 of the...

journal_title：Applied and environmental microbiology

authors： Urschel MR,Kubo MD,Hoehler TM,Peters JW,Boyd ES

更新日期：2015-06-01 00:00:00

abstract：:Nervous necrosis virus (NNV) is a member of the Betanodavirus genus that causes fatal diseases in over 40 species of fish worldwide. Mortality among NNV-infected fish larvae is almost 100%. In order to elucidate the mechanisms responsible for the susceptibility of fish larvae to NNV, we exposed zebrafish larvae to NNV...

journal_title：Applied and environmental microbiology

authors： Morick D,Faigenbaum O,Smirnov M,Fellig Y,Inbal A,Kotler M

更新日期：2015-05-15 00:00:00

abstract：:Lantibiotics are ribosomally synthesized antimicrobial peptides with substantial posttranslational modifications. They are characterized by the unique amino acids lanthionine and methyllanthionine, which are introduced by dehydration of Ser/Thr residues and linkage of the resulting dehydrated amino acids with Cys resi...

journal_title：Applied and environmental microbiology

authors： Basi-Chipalu S,Dischinger J,Josten M,Szekat C,Zweynert A,Sahl HG,Bierbaum G

更新日期：2015-05-15 00:00:00