Metabolic Modeling of Streptococcus mutans Reveals Complex Nutrient Requirements of an Oral Pathogen.

abstract：:Despite increasing acknowledgment that microorganisms underpin the healthy functioning of basically all multicellular life, few cross-disciplinary teams address the diversity and function of microbiota across organisms and ecosystems. Our newly formed consortium of junior faculty spanning fields such as ecology and ge...

journal_title：mSystems

authors： Hynson NA,Frank KL,Alegado RA,Amend AS,Arif M,Bennett GM,Jani AJ,Medeiros MCI,Mileyko Y,Nelson CE,Nguyen NH,Nigro OD,Prisic S,Shin S,Takagi D,Wilson ST,Yew JY

更新日期：2018-03-13 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：:Persister cells are genetically identical variants in a bacterial population that have phenotypically modified their physiology to survive environmental stress. In bacterial pathogens, persisters are able to survive antibiotic treatment and reinfect patients in a frustrating cycle of chronic infection. To better defin...

journal_title：mSystems

authors： Micheva-Viteva SN,Shakya M,Adikari SH,Gleasner CD,Velappan N,Mourant JR,Chain PSG,Hong-Geller E

更新日期：2020-02-11 00:00:00

abstract：:Antimicrobial therapies against cystic fibrosis (CF) lung infections are largely aimed at the traditional, well-studied CF pathogens such as Pseudomonas aeruginosa and Burkholderia cepacia complex, despite the fact that the CF lung harbors a complex and dynamic polymicrobial community. A clinical focus on the dominant...

journal_title：mSystems

authors： Khanolkar RA,Clark ST,Wang PW,Hwang DM,Yau YCW,Waters VJ,Guttman DS

更新日期：2020-12-01 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：:Given the complexity of host-microbiota symbioses, scientists and philosophers are asking questions at new biological levels of hierarchical organization-what is a holobiont and hologenome? When should this vocabulary be applied? Are these concepts a null hypothesis for host-microbe systems or limited to a certain spe...

journal_title：mSystems

authors： Theis KR,Dheilly NM,Klassen JL,Brucker RM,Baines JF,Bosch TC,Cryan JF,Gilbert SF,Goodnight CJ,Lloyd EA,Sapp J,Vandenkoornhuyse P,Zilber-Rosenberg I,Rosenberg E,Bordenstein SR

更新日期：2016-03-29 00:00:00

abstract：:High-nucleic-acid (HNA) and low-nucleic-acid (LNA) bacteria are two operational groups identified by flow cytometry (FCM) in aquatic systems. A number of reports have shown that HNA cell density correlates strongly with heterotrophic production, while LNA cell density does not. However, which taxa are specifically ass...

journal_title：mSystems

authors： Rubbens P,Schmidt ML,Props R,Biddanda BA,Boon N,Waegeman W,Denef VJ

更新日期：2019-09-10 00:00:00

abstract：:Ambient temperature (Ta ) is an important factor in shaping phenotypic plasticity. Plasticity is generally beneficial for animals in adapting to their environments. Gut microbiota are crucial in regulating host physiological and behavioral processes. However, whether the gut microbiota play a role in regulating host p...

journal_title：mSystems

authors： Khakisahneh S,Zhang XY,Nouri Z,Wang DH

更新日期：2020-10-20 00:00:00

abstract：:Vibrio anguillarum is a marine bacterium that can cause vibriosis in many fish and shellfish species, leading to high mortalities and economic losses in aquaculture. Although putative virulence factors have been identified, the mechanism of pathogenesis of V. anguillarum is not fully understood. Here, we analyzed whol...

journal_title：mSystems

authors： Castillo D,Alvise PD,Xu R,Zhang F,Middelboe M,Gram L

更新日期：2017-02-28 00:00:00

abstract：:Salmonella infection is one of the main causes of food-borne diarrheal diseases worldwide. Although most Salmonella infections can be cleared without treatment, some cause serious illnesses that require antibiotic treatment. In view of the growing emergence of antibiotic-resistant Salmonella strains, novel treatments ...

journal_title：mSystems

authors： Hu YOO,Hugerth LW,Bengtsson C,Alisjahbana A,Seifert M,Kamal A,Sjöling Å,Midtvedt T,Norin E,Du J,Engstrand L

更新日期：2018-10-02 00:00:00

abstract：:Globally, dental caries is the most prevalent chronic oral disease and affects roughly half of all children. The aim of this report was to use metagenomic analyses to investigate the relationship between the oral microbiome and caries in preschool children. A total of 25 preschoolers, aged 3 to 5 years old with severe...

journal_title：mSystems

authors： Wang Y,Wang S,Wu C,Chen X,Duan Z,Xu Q,Jiang W,Xu L,Wang T,Su L,Wang Y,Chen Y,Zhang J,Huang Y,Tong S,Zhou C,Deng S,Qin N

更新日期：2019-11-05 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

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：: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：:Classified as a biosafety level 4 (BSL4) select agent, Nipah virus (NiV) is a deadly henipavirus in the Paramyxoviridae family, with a nearly 75% mortality rate in humans, underscoring its global and animal health importance. Elucidating the process of viral particle production in host cells is imperative both for tar...

journal_title：mSystems

authors： Johnston GP,Bradel-Tretheway B,Piehowski PD,Brewer HM,Lee BNR,Usher NT,Zamora JLR,Ortega V,Contreras EM,Teuton JR,Wendler JP,Matz KM,Adkins JN,Aguilar HC

更新日期：2019-09-24 00:00:00

abstract：:Tripartite symbioses between bacteriophages, the epithelial cell layers of the human gut, and bacterial symbionts may play an important and unrecognized role in the function of the gut microbiome. Traditionally, phages residing within the gut were considered to interact only with their bacterial hosts and thereby to f...

journal_title：mSystems

authors： Barr JJ

更新日期：2019-05-07 00:00:00

abstract：:Although a few studies have investigated the intestinal microbiota of women with polycystic ovary syndrome (PCOS), the functional and metabolic mechanisms of the microbes associated with PCOS, as well as potential microbial biomarkers, have not yet been identified. To address this gap, we designed a two-phase experime...

journal_title：mSystems

authors： Zhang J,Sun Z,Jiang S,Bai X,Ma C,Peng Q,Chen K,Chang H,Fang T,Zhang H

更新日期：2019-04-16 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：:Many pathogenic bacteria of the family Enterobacteriaceae use type III secretion systems to inject virulence proteins, termed "effectors," into the host cell cytosol. Although host-cellular activities of several effectors have been demonstrated, the function and host-targeted pathways of most of the effectors identifi...

journal_title：mSystems

authors： Sontag RL,Nakayasu ES,Brown RN,Niemann GS,Sydor MA,Sanchez O,Ansong C,Lu SY,Choi H,Valleau D,Weitz KK,Savchenko A,Cambronne ED,Adkins JN

更新日期：2016-07-12 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：:Apoptosis is generally considered the first line of defense against viral infection. However, the role of apoptosis in the interactions between plant viruses and their insect vectors has rarely been investigated. By studying plant DNA viruses of the genus Begomovirus within the family Geminiviridae, which are transmit...

journal_title：mSystems

authors： Wang XR,Wang C,Ban FX,Ghanim M,Pan LL,Qian LX,Liu YQ,Wang XW,Liu SS

更新日期：2020-09-22 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：:Wastewater surveillance represents a complementary approach to clinical surveillance to measure the presence and prevalence of emerging infectious diseases like the novel coronavirus SARS-CoV-2. This innovative data source can improve the precision of epidemiological modeling to understand the penetrance of SARS-CoV-2...

journal_title：mSystems

authors： Wu F,Zhang J,Xiao A,Gu X,Lee WL,Armas F,Kauffman K,Hanage W,Matus M,Ghaeli N,Endo N,Duvallet C,Poyet M,Moniz K,Washburne AD,Erickson TB,Chai PR,Thompson J,Alm EJ

更新日期：2020-07-21 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：:Estimations of microbial community diversity based on metagenomic data sets are affected, often to an unknown degree, by biases derived from insufficient coverage and reference database-dependent estimations of diversity. For instance, the completeness of reference databases cannot be generally estimated since it depe...

journal_title：mSystems

authors： Rodriguez-R LM,Gunturu S,Tiedje JM,Cole JR,Konstantinidis KT

更新日期：2018-04-10 00:00:00

abstract：:Marine oil spills can impact both coastal and offshore marine environments, but little information is available on how the microbial response to oil and dispersants might differ between these biomes. Here, we describe the compositional and functional response of microbial communities to different concentrations of oil...

journal_title：mSystems

authors： Doyle SM,Lin G,Morales-McDevitt M,Wade TL,Quigg A,Sylvan JB

更新日期：2020-08-25 00:00:00

abstract：:As the most ancient metazoan, sponges have established close relationships with particular microbial symbionts. However, the characteristics and physiology of thioautotrophic symbionts in deep-sea sponges are largely unknown. Using a tailored "differential coverage binning" method on 22-Gb metagenomic sequences, we re...

journal_title：mSystems

authors： Tian RM,Zhang W,Cai L,Wong YH,Ding W,Qian PY

更新日期：2017-03-21 00:00:00

abstract：:Using automated genome analysis tools, it is often unclear to what degree genetic variability in homologous biosynthetic pathways relates to structural variation. This hampers strain prioritization and compound identification and can lead to overinterpretation of chemical diversity. Here, we assessed the metabolic pot...

journal_title：mSystems

authors： Männle D,McKinnie SMK,Mantri SS,Steinke K,Lu Z,Moore BS,Ziemert N,Kaysser L

更新日期：2020-06-02 00:00:00

abstract：:The identification of ancestral traits is essential to understanding the evolution of any group. In the case of parasitic groups, this helps us understand the adaptation to this lifestyle and a particular host. Most diplomonads are parasites, but there are free-living members of the group nested among the host-associa...

journal_title：mSystems

authors： Jiménez-González A,Andersson JO

更新日期：2020-12-22 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