Production of the Plant Hormone Auxin by Salmonella and Its Role in the Interactions with Plants and Animals.

Abstract:

:The ability of human enteric pathogens to colonize plants and use them as alternate hosts is now well established. Salmonella, similarly to phytobacteria, appears to be capable of producing the plant hormone auxin via an indole-3-pyruvate decarboxylase (IpdC), a key enzyme of the IPyA pathway. A deletion of the Salmonella ipdC significantly reduced auxin synthesis in laboratory culture. The Salmonella ipdC gene was expressed on root surfaces of Medicago truncatula. M. truncatula auxin-responsive GH3::GUS reporter was activated by the wild type Salmonella, and not but the ipdC mutant, implying that the bacterially produced IAA (Indole Acetic Acid) was detected by the seedlings. Seedling infections with the wild type Salmonella caused an increase in secondary root formation, which was not observed in the ipdC mutant. The wild type Salmonella cells were detected as aggregates at the sites of lateral root emergence, whereas the ipdC mutant cells were evenly distributed in the rhizosphere. However, both strains appeared to colonize seedlings well in growth pouch experiments. The ipdC mutant was also less virulent in a murine model of infection. When mice were infected by oral gavage, the ipdC mutant was as proficient as the wild type strain in colonization of the intestine, but it was defective in the ability to cross the intestinal barrier. Fewer cells of the ipdC mutant, compared with the wild type strain, were detected in Peyer's patches, spleen and in the liver. Orthologs of ipdC are found in all Salmonella genomes and are distributed among many animal pathogens and plant-associated bacteria of the Enterobacteriaceae, suggesting a broad ecological role of the IpdC-catalyzed pathway.

journal_name

Front Microbiol

authors

Cox CE,Brandl MT,de Moraes MH,Gunasekera S,Teplitski M

doi

10.3389/fmicb.2017.02668

subject

Has Abstract

pub_date

2018-01-12 00:00:00

pages

2668

issn

1664-302X

journal_volume

8

pub_type

杂志文章
  • In Situ Antibacterial Activity of Essential Oils with and without Alcohol on Oral Biofilm: A Randomized Clinical Trial.

    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

    pub_type: 杂志文章

    doi:10.3389/fmicb.2017.02162

    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

  • A New Pathway for Mannitol Metabolism in Yeasts Suggests a Link to the Evolution of Alcoholic Fermentation.

    abstract::The yeasts belonging to the Wickerhamiella and Starmerella genera (W/S clade) share a distinctive evolutionary history marked by loss and subsequent reinstatement of alcoholic fermentation mediated by horizontal gene transfer events. Species in this clade also share unusual features of metabolism, namely the preferenc...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.02510

    authors: Gonçalves C,Ferreira C,Gonçalves LG,Turner DL,Leandro MJ,Salema-Oom M,Santos H,Gonçalves P

    更新日期:2019-11-01 00:00:00

  • Genetic Identification of a PilT Motor in Geobacter sulfurreducens Reveals a Role for Pilus Retraction in Extracellular Electron Transfer.

    abstract::The metal-reducing bacterium Geobacter sulfurreducens requires the expression of conductive pili to reduce iron oxides and to wire electroactive biofilms, but the role of pilus retraction in these functions has remained elusive. Here we show that of the four PilT proteins encoded in the genome of G. sulfurreducens, Pi...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2016.01578

    authors: Speers AM,Schindler BD,Hwang J,Genc A,Reguera G

    更新日期:2016-10-17 00:00:00

  • Antifungal Effect of Novel 2-Bromo-2-Chloro-2-(4-Chlorophenylsulfonyl)-1-Phenylethanone against Candida Strains.

    abstract::We investigated the antifungal activity of novel a 2-bromo-2-chloro-2-(4-chlorophenylsulfonyl)-1-phenylethanone (compound 4). The synthesis of compound 4 was commenced from sodium 4-chlorobenzene sulfinate and the final product was obtained by treatment of α-chloro-β-keto-sulfone with sodium hypobromite. The sensitivi...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2016.01309

    authors: Staniszewska M,Bondaryk M,Wieczorek M,Estrada-Mata E,Mora-Montes HM,Ochal Z

    更新日期:2016-08-25 00:00:00

  • Soil Photosynthetic Microbial Communities Mediate Aggregate Stability: Influence of Cropping Systems and Herbicide Use in an Agricultural Soil.

    abstract::Edaphic cyanobacteria and algae have been extensively studied in dryland soils because they play key roles in the formation of biological soil crusts and the stabilization of soil surfaces. Yet, in temperate agricultural crop soils, little is understood about the functional significance of indigenous photosynthetic mi...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.01319

    authors: Crouzet O,Consentino L,Pétraud JP,Marrauld C,Aguer JP,Bureau S,Le Bourvellec C,Touloumet L,Bérard A

    更新日期:2019-06-14 00:00:00

  • The Potential Role of Gut Mycobiome in Irritable Bowel Syndrome.

    abstract::The human gut is inhabited by diverse microorganisms that play crucial roles in health and disease. Gut microbiota dysbiosis is increasingly considered as a vital factor in the etiopathogenesis of irritable bowel syndrome (IBS), which is a common functional gastrointestinal disorder with a high incidence all over the ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fmicb.2019.01894

    authors: Gu Y,Zhou G,Qin X,Huang S,Wang B,Cao H

    更新日期:2019-08-21 00:00:00

  • In vitro Prebiotic Effects of Bamboo Shoots and Potato Peel Extracts on the Proliferation of Lactic Acid Bacteria Under Simulated GIT Conditions.

    abstract::The present study explored the possible prebiotic application of potato peel and bamboo shoot extracts for the proliferation of lactic acid bacteria (LAB) from diverse niches and their tolerance ability to simulated gastrointestinal tract (GIT) conditions was also examined. Initially, the complete 16S rDNA sequencing ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.02114

    authors: Thakur K,Xu GY,Zhang JG,Zhang F,Hu F,Wei ZJ

    更新日期:2018-09-05 00:00:00

  • Dynamics of Insect-Microbiome Interaction Influence Host and Microbial Symbiont.

    abstract::Insects share an intimate relationship with their gut microflora and this symbiotic association has developed into an essential evolutionary outcome intended for their survival through extreme environmental conditions. While it has been clearly established that insects, with very few exceptions, associate with several...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fmicb.2020.01357

    authors: Gupta A,Nair S

    更新日期:2020-06-26 00:00:00

  • Mineralizing Filamentous Bacteria from the Prony Bay Hydrothermal Field Give New Insights into the Functioning of Serpentinization-Based Subseafloor Ecosystems.

    abstract::Despite their potential importance as analogs of primitive microbial metabolisms, the knowledge of the structure and functioning of the deep ecosystems associated with serpentinizing environments is hampered by the lack of accessibility to relevant systems. These hyperalkaline environments are depleted in dissolved in...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2017.00057

    authors: Pisapia C,Gérard E,Gérard M,Lecourt L,Lang SQ,Pelletier B,Payri CE,Monnin C,Guentas L,Postec A,Quéméneur M,Erauso G,Ménez B

    更新日期:2017-01-31 00:00:00

  • Rapid in Vitro Quantification of S. aureus Biofilms on Vascular Graft Surfaces.

    abstract::Objectives: Increasing resistance of microorganisms and particularly tolerance of bacterial biofilms against antibiotics require the need for alternative antimicrobial substances. S. aureus is the most frequent pathogen causing vascular graft infections. In order to evaluate the antimicrobial efficacy, quantification ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2017.02333

    authors: Herten M,Bisdas T,Knaack D,Becker K,Osada N,Torsello GB,Idelevich EA

    更新日期:2017-12-05 00:00:00

  • Effects of Sulfamethoxazole on the Microbial Community Dynamics During the Anaerobic Digestion Process.

    abstract::Anaerobic digestion (AD) treatment of cattle manure and slurry makes it possible to produce biogas, a renewable and storable biofuel, as well as digestate, a residual organic matter that can be used to replace chemical fertilizers. On the other hand, the intense use of antibiotics (e.g., sulfamethoxazole) in animal hu...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.537783

    authors: Mazzurco Miritana V,Massini G,Visca A,Grenni P,Patrolecco L,Spataro F,Rauseo J,Garbini GL,Signorini A,Rosa S,Barra Caracciolo A

    更新日期:2020-09-16 00:00:00

  • Combined Metabarcoding and Co-occurrence Network Analysis to Profile the Bacterial, Fungal and Fusarium Communities and Their Interactions in Maize Stalks.

    abstract::Fusarium Head Blight (FHB) is one of the most devastating diseases of cereals worldwide, threatening both crop production by affecting cereal grain development, and human and animal health by contaminating grains with mycotoxins. Despite that maize residues constitute the primary source of inoculum for Fusarium pathog...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.00261

    authors: Cobo-Díaz JF,Baroncelli R,Le Floch G,Picot A

    更新日期:2019-02-18 00:00:00

  • Incidence and Outcome of Invasive Fungal Diseases in Children With Hematological Malignancies and/or Allogeneic Hematopoietic Stem Cell Transplantation: Results of a Prospective Multicenter Study.

    abstract:Background:Available data on the incidence and outcome of invasive fungal diseases (IFD) in children with hematological malignancies or after allogeneic hematopoietic stem cell transplantation (HSCT) are mostly based on monocenter, retrospective studies or on studies performed prior to the availability of newer triazol...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.00681

    authors: Lehrnbecher T,Schöning S,Poyer F,Georg J,Becker A,Gordon K,Attarbaschi A,Groll AH

    更新日期:2019-04-16 00:00:00

  • Dynamics Relationship of Phyllosphere and Rhizosphere Bacterial Communities During the Development of Bothriochloa ischaemum in Copper Tailings.

    abstract::Copper mining and the byproducts associated with the industry have led to serious pollution in the Loess Plateau of China. There is a potential in improving the ecological restoration efficiency of such degraded land through combining microbial and plant remediation approaches. However, the community structure and fun...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.00869

    authors: Jia T,Yao Y,Wang R,Wu T,Chai B

    更新日期:2020-05-28 00:00:00

  • Simulation Modeling to Compare High-Throughput, Low-Iteration Optimization Strategies for Metabolic Engineering.

    abstract::Increasing the final titer of a multi-gene metabolic pathway can be viewed as a multivariate optimization problem. While numerous multivariate optimization algorithms exist, few are specifically designed to accommodate the constraints posed by genetic engineering workflows. We present a strategy for optimizing express...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.00313

    authors: Heinsch SC,Das SR,Smanski MJ

    更新日期:2018-02-27 00:00:00

  • Comparative Analysis of Virulence and Toxin Expression of Vancomycin-Intermediate and Vancomycin-Sensitive Staphylococcus aureus Strains.

    abstract::Previous studies on vancomycin-intermediate Staphylococcus aureus (VISA) have mainly focused on drug resistance, the evolution of differences in virulence between VISA and vancomycin-sensitive S. aureus (VSSA) requires further investigation. To address this issue, in this study, we compared the virulence and toxin pro...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.596942

    authors: Jin Y,Yu X,Zhang S,Kong X,Chen W,Luo Q,Zheng B,Xiao Y

    更新日期:2020-10-30 00:00:00

  • Description and Comparative Genomics of Macrococcus caseolyticus subsp. hominis subsp. nov., Macrococcus goetzii sp. nov., Macrococcus epidermidis sp. nov., and Macrococcus bohemicus sp. nov., Novel Macrococci From Human Clinical Material With Virulence P

    abstract::The genus Macrococcus is a close relative of the genus Staphylococcus. Whilst staphylococci are widespread as human pathogens, macrococci have not yet been reported from human clinical specimens. Here we investigated Gram-positive and catalase-positive cocci recovered from human clinical material and identified as Mac...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.01178

    authors: Mašlaňová I,Wertheimer Z,Sedláček I,Švec P,Indráková A,Kovařovic V,Schumann P,Spröer C,Králová S,Šedo O,Krištofová L,Vrbovská V,Füzik T,Petráš P,Zdráhal Z,Ružičková V,Doškař J,Pantuček R

    更新日期:2018-06-13 00:00:00

  • Host Range and Symbiotic Effectiveness of N2O Reducing Bradyrhizobium Strains.

    abstract::Emissions of the potent greenhouse gas N2O is one of the environmental problems associated with intensive use of synthetic N fertilizers, and novel N2O mitigation strategies are needed to minimize fertilizer applications and N2O release without affecting agricultural efficiencies. Increased incorporation of legume cro...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.02746

    authors: Woliy K,Degefu T,Frostegård Å

    更新日期:2019-11-29 00:00:00

  • Abundance of Colistin-Resistant, OXA-23- and ArmA-Producing Acinetobacter baumannii Belonging to International Clone 2 in Greece.

    abstract::Carbapenem resistant Acinetobacter baumannii (CRAB) represents one of the most challenging pathogens in clinical settings. Colistin is routinely used for treatment of infections by this pathogen, but increasing colistin resistance has been reported. We obtained 122 CRAB isolates from nine Greek hospitals between 2015 ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.00668

    authors: Palmieri M,D'Andrea MM,Pelegrin AC,Perrot N,Mirande C,Blanc B,Legakis N,Goossens H,Rossolini GM,van Belkum A

    更新日期:2020-04-15 00:00:00

  • Cathelicidin-Derived Synthetic Peptide Improves Therapeutic Potential of Vancomycin Against Pseudomonas aeruginosa.

    abstract::Pseudomonas aeruginosa (PA) is the leading cause of corneal blindness worldwide. A constant increase in multi-drug resistant PA strains have heightened the challenge of effectively managing corneal infections with conventional antibiotics. Antimicrobial peptides are promising antibiotic analogs with a unique mode of a...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.02190

    authors: Mohammed I,Said DG,Nubile M,Mastropasqua L,Dua HS

    更新日期:2019-09-19 00:00:00

  • Extrachromosomal Nucleolus-Like Compartmentalization by a Plasmid-Borne Ribosomal RNA Operon and Its Role in Nucleoid Compaction.

    abstract::In the fast-growing Escherichia coli cells, RNA polymerase (RNAP) molecules are concentrated and form foci at clusters of ribosomal RNA (rRNA) operons resembling eukaryotic nucleolus. The bacterial nucleolus-like organization, spatially compartmentalized at the surface of the compact bacterial chromosome (nucleoid), s...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.01115

    authors: Mata Martin C,Sun Z,Zhou YN,Jin DJ

    更新日期:2018-06-05 00:00:00

  • Characterization of genetic structures of the QepA3 gene in clinical isolates of Enterobacteriaceae.

    abstract::QepA is one of the genes that confer quinolone resistance in bacteria. The aim of this study was to analyze the genetic structures of plasmids that carry a qepA3, a recently discovered allele of qepA in Enterobacteriaceae clinical isolates. 656 non-redundant Enterobacteriaceae clinical isolates were screened for the q...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2015.01147

    authors: Wang D,Huang X,Chen J,Mou Y,Li H,Yang L

    更新日期:2015-10-15 00:00:00

  • The Antifungal Plant Defensin HsAFP1 from Heuchera sanguinea Induces Apoptosis in Candida albicans.

    abstract::Plant defensins are active against plant and human pathogenic fungi (such as Candida albicans) and baker's yeast. However, they are non-toxic to human cells, providing a possible source for treatment of fungal infections. In this study, we characterized the mode of action of the antifungal plant defensin HsAFP1 from c...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2011.00047

    authors: Aerts AM,Bammens L,Govaert G,Carmona-Gutierrez D,Madeo F,Cammue BP,Thevissen K

    更新日期:2011-03-16 00:00:00

  • Planctomycetes as Novel Source of Bioactive Molecules.

    abstract::Marine environments are a fruitful source of bioactive compounds some of which are the newest leading drugs in medicinal therapeutics. Of particular importance are organisms like sponges and macroalgae and their associated microbiome. Planctomycetes, abundant in macroalgae biofilms, are promising producers of bioactiv...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2016.01241

    authors: Graça AP,Calisto R,Lage OM

    更新日期:2016-08-12 00:00:00

  • Focused Review: Cytotoxic and Antioxidant Potentials of Mangrove-Derived Streptomyces.

    abstract::Human life expectancy is rapidly increasing with an associated increasing burden of chronic diseases, such as neurodegenerative diseases and cancer. However, there is limited progress in finding effective treatment for these conditions. For this reason, members of the genus Streptomyces have been explored extensively ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fmicb.2017.02065

    authors: Ser HL,Tan LT,Law JW,Chan KG,Duangjai A,Saokaew S,Pusparajah P,Ab Mutalib NS,Khan TM,Goh BH,Lee LH

    更新日期:2017-11-01 00:00:00

  • Development and Evaluation of Isothermal Amplification Methods for Rapid Detection of Lethal Amanita Species.

    abstract::In the present work, loop-mediated isothermal amplification (LAMP) and hyperbranched rolling circle amplification (HRCA) methods were developed to detect and distinguish different lethal Amanita species. Specific LAMP primers and HRCA padlock probes for species-specific identification and a set of universal LAMP prime...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.01523

    authors: He Z,Su Y,Li S,Long P,Zhang P,Chen Z

    更新日期:2019-07-03 00:00:00

  • From Farms to Markets: Gram-Negative Bacteria Resistant to Third-Generation Cephalosporins in Fruits and Vegetables in a Region of North Africa.

    abstract::The role of food in human exposure to antimicrobial-resistant bacteria is a growing food safety issue. The contribution of fruits and vegetables eaten raw to this exposure is still unclear. The evaluation of contamination levels of fruits, vegetables and the agricultural environment by third-generation cephalosporin (...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2017.01569

    authors: Mesbah Zekar F,Granier SA,Marault M,Yaici L,Gassilloud B,Manceau C,Touati A,Millemann Y

    更新日期:2017-08-24 00:00:00

  • Cytotoxic effects of oosporein isolated from endophytic fungus Cochliobolus kusanoi.

    abstract::In the present study, oosporein, a fungal toxic secondary metabolite known to be a toxic agent causing chronic disorders in animals, was isolated from fungus Cochliobolus kusanoi of Nerium oleander L. Toxic effects of oosporein and the possible mechanisms of cytotoxicity as well as the role of oxidative stress in cyto...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2015.00870

    authors: Ramesha A,Venkataramana M,Nirmaladevi D,Gupta VK,Chandranayaka S,Srinivas C

    更新日期:2015-09-01 00:00:00

  • New developments in the study of the microbiota of raw-milk, long-ripened cheeses by molecular methods: the case of Grana Padano and Parmigiano Reggiano.

    abstract::Microorganisms are an essential component of cheeses and play important roles during both cheese manufacture and ripening. Both starter and secondary flora modify the physical and chemical properties of cheese, contributing and reacting to changes that occur during the manufacture and ripening of cheese. As the compos...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2013.00036

    authors: Neviani E,Bottari B,Lazzi C,Gatti M

    更新日期:2013-02-28 00:00:00

  • Diversity and Expression of Bacterial Metacaspases in an Aquatic Ecosystem.

    abstract::Metacaspases are distant homologs of metazoan caspase proteases, implicated in stress response, and programmed cell death (PCD) in bacteria and phytoplankton. While the few previous studies on metacaspases have relied on cultured organisms and sequenced genomes, no studies have focused on metacaspases in a natural set...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2016.01043

    authors: Asplund-Samuelsson J,Sundh J,Dupont CL,Allen AE,McCrow JP,Celepli NA,Bergman B,Ininbergs K,Ekman M

    更新日期:2016-07-06 00:00:00