Missing a Phage: Unraveling Tripartite Symbioses within the Human Gut.

abstract：:Microbial heterotopic metabolism in the ocean is fueled by a supply of essential nutrients acquired via exoenzymes catalyzing depolymerization of high-molecular-weight compounds. Although the rates of activity for a variety of exoenzymes across various marine environments are well established, the factors regulating t...

journal_title：mSystems

authors： Kamalanathan M,Doyle SM,Xu C,Achberger AM,Wade TL,Schwehr K,Santschi PH,Sylvan JB,Quigg A

更新日期：2020-04-14 00:00:00

abstract：:For mammals, oxalate enters the body through the diet or is endogenously produced by the liver; it is removed by microbial oxalate metabolism in the gut and/or excretion in feces or urine. Deficiencies in any one of the these pathways can lead to complications, such as calcium oxalate urinary stones. While considerabl...

journal_title：mSystems

authors： Miller AW,Dale C,Dearing MD

更新日期：2017-09-26 00:00:00

abstract：:Methylobacter species, members of the Methylococcales, have recently emerged as some of the globally widespread, cosmopolitan species that play a key role in the environmental consumption of methane across gradients of dioxygen tensions. In this work, we approached the question of how Methylobacter copes with hypoxia,...

journal_title：mSystems

authors： Yu Z,Pesesky M,Zhang L,Huang J,Winkler M,Chistoserdova L

更新日期：2020-01-21 00:00:00

abstract：:Despite insights gained through experimental models, the set of bacterial genes important for human infection is unclear for many of our most threatening pathogens. Klebsiella pneumoniae is a leading cause of health care-associated infections (HAIs) and commonly colonizes hospitalized patients, but the factors that de...

journal_title：mSystems

authors： Martin RM,Cao J,Wu W,Zhao L,Manthei DM,Pirani A,Snitkin E,Malani PN,Rao K,Bachman MA

更新日期：2018-06-26 00:00:00

abstract：:It is important to expedite our understanding of antibiotic resistance to address the increasing numbers of fatalities and environmental pollution due to the emergence of antibiotic resistance and multidrug-resistant strains. Here, we combined the CRISPR-enabled trackable genome engineering (CREATE) technology and tra...

journal_title：mSystems

authors： Chen C,Choudhury A,Zhang S,Garst AD,Song X,Liu X,Chen T,Gill RT,Wang Z

更新日期：2020-04-21 00:00:00

abstract：:The human gut microbiome plays a vital role in both health and disease states and as a mediator of cognitive and physical performance. Despite major advances in our understanding of the role of gut microbes in host physiology, mechanisms underlying human-microbiome dynamics have yet to be fully elucidated. This knowle...

journal_title：mSystems

authors： Brinkac LM,Rahman N,Chua LL,Thomas S

更新日期：2020-10-27 00:00:00

abstract：:Vitamin B12 is synthesized by prokaryotes in the rumens of dairy cows-and this has implications in human nutrition since humans rely on consumption of dairy products for vitamin B12 acquisition. However, the concentration of vitamin B12 in milk is highly variable, and there is interest in determining what causes vitam...

journal_title：mSystems

authors： Franco-Lopez J,Duplessis M,Bui A,Reymond C,Poisson W,Blais L,Chong J,Gervais R,Rico DE,Cue RI,Girard CL,Ronholm J

更新日期：2020-03-03 00:00:00

abstract：:The reactive intermediate deaminase RidA (EC 3.5.99.10) is conserved across all domains of life and deaminates reactive enamine species. When Salmonella entericaridA mutants are grown in minimal medium, 2-aminoacrylate (2AA) accumulates, damages several pyridoxal 5'-phosphate (PLP)-dependent enzymes, and elicits an ob...

journal_title：mSystems

authors： Borchert AJ,Gouveia GJ,Edison AS,Downs DM

更新日期：2020-03-10 00:00:00

abstract：:Gut microbial β-glucuronidase (GUS) enzymes play important roles in drug efficacy and toxicity, intestinal carcinogenesis, and mammalian-microbial symbiosis. Recently, the first catalog of human gut GUS proteins was provided for the Human Microbiome Project stool sample database and revealed 279 unique GUS enzymes org...

journal_title：mSystems

authors： Creekmore BC,Gray JH,Walton WG,Biernat KA,Little MS,Xu Y,Liu J,Gharaibeh RZ,Redinbo MR

更新日期：2019-08-27 00:00:00

abstract：:Studying perturbations in the gut ecosystem using animal models of disease continues to provide valuable insights into the role of the microbiome in various pathological conditions. However, understanding whether these changes are consistent across animal models of different genetic backgrounds, and hence potentially ...

journal_title：mSystems

authors： Tripathi A,Xu ZZ,Xue J,Poulsen O,Gonzalez A,Humphrey G,Meehan MJ,Melnik AV,Ackermann G,Zhou D,Malhotra A,Haddad GG,Dorrestein PC,Knight R

更新日期：2019-04-30 00:00:00

abstract：:Recent studies of mammalian microbiomes have identified strong phylogenetic effects on bacterial community composition. Bats (Mammalia: Chiroptera) are among the most speciose mammals on the planet and the only mammal capable of true flight. We examined 1,236 16S rRNA amplicon libraries of the gut, oral, and skin micr...

journal_title：mSystems

authors： Lutz HL,Jackson EW,Webala PW,Babyesiza WS,Kerbis Peterhans JC,Demos TC,Patterson BD,Gilbert JA

更新日期：2019-11-12 00:00:00

abstract：:Dietary intake is difficult to measure reliably in humans because approaches typically rely on self-reporting, which can be incomplete and biased. In field studies of animals, DNA sequencing-based approaches such as metabarcoding have been developed to characterize diets, but such approaches have not previously been w...

journal_title：mSystems

authors： Reese AT,Kartzinel TR,Petrone BL,Turnbaugh PJ,Pringle RM,David LA

更新日期：2019-10-08 00:00:00

abstract：:Insights into the interaction between phages and their bacterial hosts are crucial for the development of phage therapy. However, only one study has investigated global gene expression of Clostridioides (formerly Clostridium) difficile carrying prophage, and transcriptional reprogramming during lytic infection has not...

journal_title：mSystems

authors： Li T,Zhang Y,Dong K,Kuo CJ,Li C,Zhu YQ,Qin J,Li QT,Chang YF,Guo X,Zhu Y

更新日期：2020-05-05 00:00:00

abstract：:Pullorum disease is one of the most common diarrhea-related diseases caused by Salmonella enterica subspecies enterica serovar Gallinarum biovar Pullorum (S Pullorum); it negatively affects the poultry industry. However, limited studies have explored the association between the gut microbiota and S Pullorum infection ...

journal_title：mSystems

authors： Ding J,Zhou H,Luo L,Xiao L,Yang K,Yang L,Zheng Y,Xu K,He C,Han C,Luo H,Qin C,Akinyemi FT,Gu C,Zhou Z,Huang Q,Meng H

更新日期：2021-01-05 00:00:00

abstract：:Here, the role of the dairy-processing chain as a reservoir of antimicrobial resistance (AR) determinants and a source of novel biocontrol quorum-sensing inhibitors is assessed through a functional metagenomics approach. A metagenomic library comprising ∼22,000 recombinant clones was built from DNA isolated from raw m...

journal_title：mSystems

authors： Alexa Oniciuc EA,Walsh CJ,Coughlan LM,Awad A,Simon CA,Ruiz L,Crispie F,Cotter PD,Alvarez-Ordóñez A

更新日期：2020-02-18 00:00:00

abstract：:In bacterial cells, inhibition of ribosomes by sublethal concentrations of antibiotics leads to a decrease in the growth rate despite an increase in ribosome content. The limitation of ribosomal activity results in an increase in the level of expression from ribosomal promoters; this can deplete the pool of RNA polyme...

journal_title：mSystems

authors： Zhang Q,Brambilla E,Li R,Shi H,Cosentino Lagomarsino M,Sclavi B

更新日期：2020-09-08 00:00:00

abstract：:Acinetobacter baumannii has been reported as a multidrug-resistant bacterium due to biofilms and antimicrobial resistance mechanisms. Hence, novel therapeutic strategies are necessary to overcome A. baumannii infections. This study revealed that citral at 200 μg/ml attenuated A. baumannii biofilms by up to 90% without...

journal_title：mSystems

authors： Selvaraj A,Valliammai A,Muthuramalingam P,Sethupathy S,Subramenium GA,Ramesh M,Pandian SK

更新日期：2020-11-17 00:00:00

abstract：:Polymyxins are used as treatments of last resort for Gram-negative bacterial infections. Their increased use has led to concerns about emerging polymyxin resistance (PR). Phenotypic polymyxin susceptibility testing is resource intensive and difficult to perform accurately. The complex polygenic nature of PR and our in...

journal_title：mSystems

authors： Macesic N,Bear Don't Walk OJ IV,,Pe'er I,Tatonetti NP,Peleg AY,Uhlemann AC

更新日期：2020-05-26 00:00:00

abstract：:Single mutations frequently alter several aspects of cell behavior but rarely reveal whether a particular statistically significant change is biologically significant. To determine which behavioral changes are most important for multicellular self-organization, we devised a new methodology using Myxococcus xanthus as ...

journal_title：mSystems

authors： Zhang Z,Cotter CR,Lyu Z,Shimkets LJ,Igoshin OA

更新日期：2020-07-14 00:00:00

abstract：:Health-associated oral Streptococcus species are promising probiotic candidates to protect against dental caries. Ammonia production through the arginine deiminase system (ADS), which can increase the pH of oral biofilms, and direct antagonism of caries-associated bacterial species are desirable properties for oral pr...

journal_title：mSystems

authors： Velsko IM,Chakraborty B,Nascimento MM,Burne RA,Richards VP

更新日期：2018-12-18 00:00:00

abstract：:In pregnant and lactating sows, metabolism and immunity undergo drastic changes, which can lead to constipation, abortion, and intrauterine growth restriction (IUGR) and reduce production performance. Dietary fiber can regulate animal gut microbiota, alleviate inflammatory responses, and improve performance. Here, 48 ...

journal_title：mSystems

authors： Liu B,Zhu X,Cui Y,Wang W,Liu H,Li Z,Guo Z,Ma S,Li D,Wang C,Shi Y

更新日期：2021-01-26 00:00:00

abstract：:Quantitative understanding and prediction of microbial community dynamics are an outstanding challenge. We test the hypothesis that metabolic mechanisms provide a foundation for accurate prediction of dynamics in microbial systems. In our research, metabolic models have been able to accurately predict species interact...

journal_title：mSystems

authors： Chacón JM,Harcombe WR

更新日期：2019-06-11 00:00:00

abstract：:In the female genital ecosystem, the complex interplay between the host immune system and the resident microflora protects against urogenital pathogens, like Chlamydia trachomatisC. trachomatis is responsible for urethritis and cervicitis; however, most chlamydial infections are asymptomatic and, thus, not treated, po...

journal_title：mSystems

authors： Filardo S,Di Pietro M,Tranquilli G,Latino MA,Recine N,Porpora MG,Sessa R

更新日期：2019-06-04 00:00:00

abstract：:Polyhydroxybutyrate (PHB) and glycogen polymers are produced by bacteria as carbon storage compounds under unbalanced growth conditions. To gain insights into the transcriptional mechanisms controlling carbon storage in Sinorhizobium meliloti, we investigated the global transcriptomic response to the genetic disruptio...

journal_title：mSystems

authors： D'Alessio M,Nordeste R,Doxey AC,Charles TC

更新日期：2017-09-12 00:00:00

abstract：:Nutrient acquisition from the host environment is crucial for the survival of intracellular pathogens, but conceptual and technical challenges limit our knowledge of pathogen diets. To overcome some of these technical roadblocks, we exploited an experimentally accessible model for early infection of human macrophages ...

journal_title：mSystems

authors： Zimmermann M,Kogadeeva M,Gengenbacher M,McEwen G,Mollenkopf HJ,Zamboni N,Kaufmann SHE,Sauer U

更新日期：2017-08-22 00:00:00

abstract：:Trauma patients (TPs) are highly susceptible to infections, which often lead to sepsis. Among the numerous causative agents, Pseudomonas aeruginosa is especially important, as P. aeruginosa sepsis is often fatal. Understanding the mechanism of its pathogenesis in bloodstream infections is imperative; however, this mec...

journal_title：mSystems

authors： Elmassry MM,Mudaliar NS,Kottapalli KR,Dissanaike S,Griswold JA,San Francisco MJ,Colmer-Hamood JA,Hamood AN

更新日期：2019-05-07 00:00:00

abstract：:Soil metagenomics has been touted as the "grand challenge" for metagenomics, as the high microbial diversity and spatial heterogeneity of soils make them unamenable to current assembly platforms. Here, we aimed to improve soil metagenomic sequence assembly by applying the Moleculo synthetic long-read sequencing techno...

journal_title：mSystems

authors： White RA 3rd,Bottos EM,Roy Chowdhury T,Zucker JD,Brislawn CJ,Nicora CD,Fansler SJ,Glaesemann KR,Glass K,Jansson JK

更新日期：2016-06-28 00:00:00

abstract：:Bisphenol A (BPA) accumulates in the maturing gut and liver in utero and is known to alter gut bacterial profiles in offspring. Gut bacterial dysbiosis may contribute to chronic colonic and systemic inflammation. We hypothesized that perinatal BPA exposure-induced intestinal (and liver) inflammation in offspring is du...

journal_title：mSystems

authors： Reddivari L,Veeramachaneni DNR,Walters WA,Lozupone C,Palmer J,Hewage MKK,Bhatnagar R,Amir A,Kennett MJ,Knight R,Vanamala JKP

更新日期：2017-10-10 00:00:00

abstract：:Bacterial motility is thought to play an important role in virulence. We have previously shown that proficient bacterial swimming and swarming in vitro is correlated with the persistent intramammary infection phenotype observed in cattle. However, little is known about the gene regulation differences important for dif...

journal_title：mSystems

authors： Lippolis JD,Brunelle BW,Reinhardt TA,Sacco RE,Thacker TC,Looft TP,Casey TA

更新日期：2016-08-09 00:00:00

abstract：:Multispecies microbial communities determine the fate of materials in the environment and can be harnessed to produce beneficial products from renewable resources. In a recent example, fermentations by microbial communities have produced medium-chain fatty acids (MCFAs). Tools to predict, assess, and improve the perfo...

journal_title：mSystems

authors： Scarborough MJ,Hamilton JJ,Erb EA,Donohue TJ,Noguera DR

更新日期：2020-09-29 00:00:00