• Some P. fluorescens strains (CHA0 or Pf-5, for example) present biocontrol properties, protecting the roots of some plant species against parasitic fungi such as Fusarium or the oomycete Pythium, as well as some phytophagous nematodes. (wikipedia.org)
  • To be specific, certain P. fluorescens isolates produce the secondary metabolite 2,4-diacetylphloroglucinol (2,4-DAPG), the compound found to be responsible for antiphytopathogenic and biocontrol properties in these strains. (wikipedia.org)
  • The efficacy of Pseudomonas fluorescens for biocontrol of Escherichia coli O157:H7 was determined on baby spinach. (usda.gov)
  • Genome sequence of the biocontrol strain Pseudomonas fluorescens F113. (thea.ie)
  • Pseudomonas fluorescens F113 is a plant growth-promoting rhizobacterium (PGPR) that has biocontrol activity against fungal plant pathogens and is a model for rhizosphere colonization. (thea.ie)
  • The present study sought to evaluate the antifungal and plant-growth-promoting properties of strain Lu10-1, to clarify its specific localization within a mulberry plant, and to better understand its potential as a biocontrol and growth-promoting agent. (biomedcentral.com)
  • The strain is antagonistic to C. dematium and acts as an efficient plant-growth-promoting agent on mulberry seedlings and is therefore a promising candidate as a biocontrol and growth-promoting agent. (biomedcentral.com)
  • Discovered by scientist Ann Kennedy with the USDA-Agricultural Research Service, the bacterium Pseudomonas fluorescens, strain D7, offers significant activity to combat downy brome, commonly known as cheatgrass. (no-tillfarmer.com)
  • Notable P. fluorescens strains SBW25, Pf-5 and PfO-1 have been sequenced, among others. (wikipedia.org)
  • Finally, we transferred the disaggregated PtoDC3000 effector arsenal into Pseudomonas fluorescens and show that their cooperative action was sufficient to convert this rhizosphere-inhabiting beneficial bacterium into a phyllosphere pathogen. (nature.com)
  • Fig. 4: Effectors are sufficient for converting a beneficial strain into a pathogen. (nature.com)
  • Under natural pathogen pressure, inoculation with strain RMB7 and RMB7-supernatant conferred resistance by arugula plant against Pythium irregulare with a concurrent growth improvement over non-inoculated plants. (biomedcentral.com)
  • when applied on leaves or to the soil, Lu10-1 also inhibited the development of anthracnose in a greenhouse, but the effectiveness varied with the length of the interval between the strain treatment and inoculation with the pathogen. (biomedcentral.com)
  • In humans, P. aeruginosa is the most common pathogen, but infection may result from P. paucimobilis , P. putida , P. fluorescens , or P. acidovorans . (msdmanuals.com)
  • The type and reference strains of Ralstonia , Pandoraea , Burkholderia , Alcaligenes , and Bordetella species have been described (9-14). (cdc.gov)
  • The protein of P. fluorescens was found to have a better folded structure, more serine residues in the active site, and better active site properties and isoelectric point value in comparison to PrnD proteins of Burkholderia and Serratia. (tubitak.gov.tr)
  • Some strains of Burkholderia cepacia were reported to be useful antagonists of plant pests and could increase the yields of several crop plants. (biomedcentral.com)
  • Burkholderia cepacia strain Lu10-1 is an endophyte that can multiply and spread in mulberry seedlings rapidly and efficiently. (biomedcentral.com)
  • Finished Annotated Genome Sequence of Burkholderia pseudomallei Strain Bp1651, a Multidrug-Resistant Clinical Isolate. (cdc.gov)
  • Commensal Pseudomonas strains facilitate protective response against pathogens in the host plant. (nature.com)
  • DNA-based methodologies for rapid detection, quantification, and species- or strain-level identification of respiratory pathogens (Mycobacteria and Pseudomonads) in metalworking fluid s. (cdc.gov)
  • The improved, modified population of agents is able to grow, compete with other microbial strains and fungi, and provide protection for plants from pathogens. (justia.com)
  • It was concluded that P. fluorescens is not a species in the strict sense, but should be considered as a wider evolutionary group, or a species complex, that includes within it other species too. (wikipedia.org)
  • This finding is in accordance with previous analyses of 107 Pseudomonas species, using four core 'housekeeping' genes, that consider P. fluorescens as a relaxed species complex. (wikipedia.org)
  • Indeed, these species xylosoxidans , B. gladioli, and R. pickettii have been recovered are frequently misidentified as P. fluorescens or B. cepacia from sputum cultures of CF patients as well (2,3). (cdc.gov)
  • Indeed, these species are frequently misidentified as P. fluorescens or B. cepacia complex ( 12 , 24 - 26 ). (cdc.gov)
  • Genome fingerprinting by pulsed-field gel electrophoresis (PFGE) on Mycobacterium isolates further showed that the isolates represented three strains of M. chelonae although the possibility of one of the strains being clonal with M. immunogenum cannot be excluded. (cdc.gov)
  • Ammeri RW, Hassen W, Mehri I, khelifi N, Hassen A. Pentachlorophenol Effect on Auxin Production by Pseudomonas fluorescens GU059580 and Its Application in Wastewater Bioremediation. (lidsen.com)
  • To conclude, P. fluorescens GU059580 can be used in bioreactors or some specific wastewater treatment processes for bioremediation. (lidsen.com)
  • The specific name fluorescens refers to the microbe's secretion of a soluble fluorescent pigment called pyoverdin, which is a type of siderophore. (wikipedia.org)
  • This bacterial strain showed plant growth-promoting properties, including biofilm formation and siderophore activity. (mdpi.com)
  • P. fluorescens strains 2-79, Q2-87, and Q8R-1 (non-pectolytic and non-plant pathogenic) were applied on spinach using the dip inoculation method, prior to inoculation with E. coli O157:H7 strains 43894, 43895, and 35150 individually or in a cocktail mixture. (usda.gov)
  • Pseudomonas Strains Induce Transcriptional and Morphological Changes and Reduce Root Colonization of Verticillium spp. (frontiersin.org)
  • fluorescens (strain 197) were able to induce spring wheat resistance against multiplepathogens, intracellular and extracellular elicitors of FS-94 as well as MF3-protein of 197 wereused for treatment. (iobc-wprs.org)
  • Heat-stable lipases and proteases are produced by P. fluorescens and other similar pseudomonads. (wikipedia.org)
  • The number of applications of strain A506 apparently can be reduced by applying the antagonistic bacterium early in the season with a penetrating surfactant. (actahort.org)
  • 16S rRNA analysis as well as phylogenomic analysis has placed P. fluorescens in the P. fluorescens group within the genus, to which it lends its name. (wikipedia.org)
  • A comparative genomic study (in 2020) analyzed 494 complete genomes from the entire Pseudomonas genus, with 25 of them being annotated as P. fluorescens. (wikipedia.org)
  • The P. fluorescens relaxed evolutionary group that was defined in, on the basis of the genus phylogenomic tree, comprised 96 genomes and displayed high levels of phylogenetic heterogeneity. (wikipedia.org)
  • Almost 5% of its genome is devoted for the production of antibiotics and many strains from this genus have shown the potential to produce about two dozen structurally diverse antimicrobial compounds [ 11 ]-[ 13 ]. (biomedcentral.com)
  • The two types of soil were inoculated with five microbial combinations using plant growth promoting bacteria (PGPB, Pseudomonas fluorescens ) and mycorrhiza, and planted with two-day-old sorghum bicolor and Setaria italica (Foxtail millet) seedlings. (scirp.org)
  • We used plant growth promoting bacteria (PGPB) Pseudomonas fluorescens obtained from microbial laboratories. (scirp.org)
  • P. corrugata strain RM1-1-4 was isolated from the oilseed rape rhizosphere grown in the greenhouse, whose seeds were treated with the microbial community associated with the moss Sphagnum magellanicum [ 1 ]. (biomedcentral.com)
  • In contrast to the use of Saccharomyces cerevisiae commercial starters, a way to maintain wines' microbial terroir identities, guaranteeing at the same time the predictability and reproducibility of the wines, is the selection of autochthonous Saccharomyces and non-Saccharomyces strains towards optimal enological characteristics for the chosen area of isolation. (bvsalud.org)
  • The protein count and GC content of the strains of the P. fluorescens group ranged between 4152 and 6678 (average: 5603) and between 58.7-62% (average: 60.3%), respectively. (wikipedia.org)
  • Modeling of PrnD protein from Pseudomonas fluorescens RajNB11 and its " by RAM NAGEENA SINGH, RAGHVENDRA PRATAP SINGH et al. (tubitak.gov.tr)
  • The protein from P. fluorescens was found to be basic, hydrophilic with higher thermal stability, and easily separated after expression and purification. (tubitak.gov.tr)
  • The reduction of E. coli O157:H7 by P. fluorescens was computed relative to the control. (usda.gov)
  • The mean reduction of E.coli O157:H7 by P. fluorescens ranged from 0.5-2.1 log CFU/g of spinach. (usda.gov)
  • O antigen clusters from two serogroup O58 S. enterica strains had approximately 85 % identity with the E. coli O123 O antigen region over their entire length, suggesting that these Salmonella and E. coli O antigen regions evolved from a common ancestor. (microbiologyresearch.org)
  • The O antigen cluster of a Salmonella serogroup O41 isolate had a lower level of identity with E. coli O123 over only part of its O antigen DNA cluster sequence, suggesting a different and more complex evolution of this gene cluster than those in the O58 strains. (microbiologyresearch.org)
  • φS1, which infects the bacteria Pseudomonas fluorescens , and T4, which infects the bacteria E. coli . (giftofwater.org)
  • Another comparative genomic analysis of 71 P. fluorescens genomes identified eight major subgroups and developed a set of nine genes as markers for classification within this lineage. (wikipedia.org)
  • Eight genes, phlHGFACBDE, are annotated in this cluster and conserved organizationally in 2,4-DAPG-producing strains of P. fluorescens. (wikipedia.org)
  • The proportion of flowers colonized with strain A506 throughout the spring generally increased with increasing concentrations of surfactant in which the bacteria were applied in a single application at the time of first bloom. (actahort.org)
  • The adhesiveness of the bacteria, as measured in an in vitro assay, did not relate to colonization success, as P. fluorescens and X. maltophilia colonized the microcosms to approximately the same level, but P. fluorescens was the more adhesive strain. (epa.gov)
  • In this study, potential probiotic strains were isolated using replica plating method to screen the bacteria with antagonism properties. (scialert.net)
  • We determined the effect of the role of PCP surfactant for the biofilm and auxin production of the selected bacterial strain of P. fluorescens GU059580. (lidsen.com)
  • Microcosm studies were performed to evaluate the effect of solid surfaces, bacterial adhesive ability, and inoculum size on colonization success and persistence of P. fluorescens or X. maltophilia, each with a Tn5 insertion that conferred resistance to kanamycin and streptomycin. (epa.gov)
  • Pseudomonas Phl production ability resulted in lower Azospirillum cell numbers per root system (based on colony counts) and restricted microscale root colonization of neighbouring Azospirillum cells (based on confocal microscopy), regardless of the A. brasilense strain used. (hal.science)
  • The strain is moderately fast-growing, forming 1 mm colonies within 1-2 days at 25 °C. Colonies formed on nutrient broth II (NBII) agar plates [ 1 ] are yellow opaque shining, domed and moderately mucoid with smooth margins (Fig. 1 right). (biomedcentral.com)
  • Most A. brasilense strains were moderately sensitive to Phl. (hal.science)
  • The core proteome of the P. fluorescens group comprised 1396 proteins. (wikipedia.org)
  • The main genetic difference between these two strains is a mutation of the global activator gene called gacA. (wikipedia.org)
  • Pseudomonas fluorescens AU 17 was isolated from the fish waste discharged soil and it was tested for its ability to produce the protease enzyme. (ajol.info)
  • Fig. 2: Collective action of the PtoDC3000 metaclone supports growth of laboratory and natural freeloader strains. (nature.com)
  • Two strains of Pseudomonas (aeruginosa, hospital strain (PS3) isolated from a chronic wound dressing and (fluorescens, a laboratory reference strain (PF) that had no known virulence factors were grown in different media, supplemented with ethanol or glucose and in an additional media, simulated wound fluid for 24 or 80 hours. (hud.ac.uk)
  • characterization of superior root-colonizing P. fluorescens strain Q8r1-96. (innspub.net)
  • The prnD gene product of P. fluorescens RajNB11 that catalyzes the final step of production of pyrrolnitrin was characterized in the present study with regards to its stability and catalytic activity. (tubitak.gov.tr)
  • For example are you interested in specific substrates or generally just want to show catabolic activity or comptetance of the strains. (bio.net)
  • The strain produced auxins, contributed to P solubilization and nitrogenase activity, and significantly promoted the growth of mulberry seedlings. (biomedcentral.com)
  • strain RMB7 has multifaceted beneficial characteristics. (biomedcentral.com)
  • In the current study, we investigated the characteristics of bacterial strain Pseudomonas sp. (mdpi.com)
  • It was revealed that strain OBA 2.4.1 is tolerant of up to 2 mM CdCl 2 , and seed treatment with the bacterium enhanced pea plant growth (length of seedlings) under 0.5 mM cadmium stress. (mdpi.com)
  • Optimal temperatures for growth of P. fluorescens are 25-30°C. It tests positive for the oxidase test. (wikipedia.org)
  • Although virulence is typically attributed to single pathogenic strains, here we investigated whether effectors secreted by a population of non-virulent strains could function as public goods to enable the emergence of collective virulence. (nature.com)
  • Each coisogenic strain was individually unfit, but the metaclone was collectively as virulent as the wild-type strain on Arabidopsis thaliana , suggesting that effectors can drive the emergence of cooperation-based virulence through their public action. (nature.com)
  • Experiments with P. fluorescens F113 and a Phl- mutant indicated that Phl production ability contributed to in vitro growth inhibition of A. brasilense Cd and Sp245. (hal.science)
  • Strain RM1-1-4 has natural resistance to gentamycin (10 μg mL −1 ), trimethoprim (50 μg mL −1 ) and is able to develop spontaneous rifampicin-resistance. (biomedcentral.com)
  • In lake water enrichment microcosms, the presence of beads appeared to influence the abilities of P. fluorescens or X. maltophilia to colonize, as numbers of both organisms were greater in microcosms with beads (significant at same sampling dates at P (epa.gov)
  • An important advantage of the studied strain OBA 2.4.1 is its ability to colonize the plant roots. (mdpi.com)
  • Under gnotobiotic conditions, each of the three strains, P. fluorescens F113 and A. brasilense Cd and Sp245, stimulated wheat growth. (hal.science)
  • Sent: Monday, 20 April, 2009 17:47:04 Subject: lipolytic and porteolytic ________________________________ Hi everybody I'd like to evaluate the lipolytic and porteolytic characters of Pseudomonas fluorescens strains in different tempereture and I'm looking for some good methods or culture media formulation. (bio.net)
  • The phylogenomic analysis clearly showed that the 25 strains annotated as P. fluorescens did not form a monophyletic group. (wikipedia.org)
  • Application of Pseudomonas fluorescens strain A506 (in the form of the commercial bio-pesticide BlightBan A506) with the organo-silicon surfactant Breakthru resulted in a higher proportion of colonized flowers of both Bartlett pear and 'Pink Lady' apple, especially early in the growing season than when the bacterium was applied in water alone. (actahort.org)
  • The effect of different production parameters such as temperature, pH, carbon and nitrogen sources and sodium chloride concentration for protease production by the isolated bacterial strain were studied. (ajol.info)
  • This strain exhibited the production of 8 mg. (biomedcentral.com)
  • Thanks to the presence of images, this compendium could guide other researchers in screening their own yeast strains for wine production. (bvsalud.org)
  • We show that independently evolved effector suits can equally drive this cooperative behaviour by transferring the effector alleles native to the strain PmaES4326 into the conspecific but divergent strain PtoDC3000. (nature.com)
  • In parallel efforts, a quantitative competitive PCR method developed based on the Pseudomonas-specific PCR was applied to quantify total P. fluorescens cells in contaminated metalworking fluid and MWF aerosol without culturing. (cdc.gov)
  • Full Genome Analysis of Enterovirus D-68 Strains Circulating in Alberta, Canada. (cdc.gov)
  • We disaggregated the 36 type III effectors of the phytopathogenic bacterium Pseudomonas syringae strain PtoDC3000 into a 'metaclone' of 36 coisogenic strains, each carrying a single effector in an effectorless background. (nature.com)
  • A large part of the Salmonella O41 O antigen DNA cluster had very close identity with the O antigen cluster of an O62 strain. (microbiologyresearch.org)