Leviviridae
RNA Phages
Bacteriophages whose genetic material is RNA, which is single-stranded in all except the Pseudomonas phage phi 6 (BACTERIOPHAGE PHI 6). All RNA phages infect their host bacteria via the host's surface pili. Some frequently encountered RNA phages are: BF23, F2, R17, fr, PhiCb5, PhiCb12r, PhiCb8r, PhiCb23r, 7s, PP7, Q beta phage, MS2 phage, and BACTERIOPHAGE PHI 6.
Inoviridae
Water Microbiology
Waste Disposal, Fluid
F Factor
Pseudomonas Phages
Bacteriophage P2
Enterovirus
Feces
Lysogeny
The phenomenon by which a temperate phage incorporates itself into the DNA of a bacterial host, establishing a kind of symbiotic relation between PROPHAGE and bacterium which results in the perpetuation of the prophage in all the descendants of the bacterium. Upon induction (VIRUS ACTIVATION) by various agents, such as ultraviolet radiation, the phage is released, which then becomes virulent and lyses the bacterium.
Levivirus
Enterobacteriaceae
A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock.
Filtration
Viruses
Environmental Monitoring
Chloroform
Escherichia coli
A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.
Viral Plaque Assay
Method for measuring viral infectivity and multiplication in CULTURED CELLS. Clear lysed areas or plaques develop as the VIRAL PARTICLES are released from the infected cells during incubation. With some VIRUSES, the cells are killed by a cytopathic effect; with others, the infected cells are not killed but can be detected by their hemadsorptive ability. Sometimes the plaque cells contain VIRAL ANTIGENS which can be measured by IMMUNOFLUORESCENCE.
Air Microbiology
Water Supply
Rivers
Enterococcus
Molecular Sequence Data
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Colony Count, Microbial
Enumeration by direct count of viable, isolated bacterial, archaeal, or fungal CELLS or SPORES capable of growth on solid CULTURE MEDIA. The method is used routinely by environmental microbiologists for quantifying organisms in AIR; FOOD; and WATER; by clinicians for measuring patients' microbial load; and in antimicrobial drug testing.
Serotyping
Seasons
Bacteria
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
Base Sequence
Reverse Transcriptase Polymerase Chain Reaction
Nucleic Acid Conformation
Culture Media
Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.
Cattle
Hydrogen-Ion Concentration
Marker effects on reversion of T4rII mutants. (1/3698)
The frequencies of 2-aminopurine- and 5-bromouracil-induced A:T leads to G:C transitions were compared at nonsense sites throughout the rII region of bacteriophage T4. These frequencies are influenced both by adjacent base pairs within the nonsense codons and by extracodonic factors. Following 2AP treatment, they are high in amber (UAG) and lower in opal (UGA) codons than in allelic ochre (UAA) codons. In general, 5BU-induced transitions are more frequent in both amber and opal codons than in the allelic ochre codons. 2AP- and 5BU-induced transition frequencies in the first and third positions of opal codons are correlated with those in the corresponding positions of the allelic ochre codons. Similarly, the frequencies of 2AP-induced transition in the first and second positions of amber codons and their ochre alleles are correlated. However, there is little correlation between the frequencies of 5BU-induced transitions in the first and second positions of allelic amber and ochre codons. (+info)Bacteriophage inactivation at the air-water-solid interface in dynamic batch systems. (2/3698)
Bacteriophages have been widely used as surrogates for human enteric viruses in many studies on virus transport and fate. In this investigation, the fates of three bacteriophages, MS2, R17, and phiX174, were studied in a series of dynamic batch experiments. Both MS2 and R17 readily underwent inactivation in batch experiments where solutions of each phage were percolated through tubes packed with varying ratios of glass and Teflon beads. MS2 and R17 inactivation was the result of exposure to destructive forces at the dynamic air-water-solid interface. phiX174, however, did not undergo inactivation in similar studies, suggesting that this phage does not accumulate at air-water interfaces or is not affected by interfacial forces in the same manner. Other batch experiments showed that MS2 and R17 were increasingly inactivated during mixing in polypropylene tubes as the ionic strength of the solution was raised (phiX174 was not affected). By the addition of Tween 80 to suspensions of MS2 and R17, phage inactivation was prevented. Our data suggest that viral inactivation in simple dynamic batch experiments is dependent upon (i) the presence of a dynamic air-water-solid interface (where the solid is a hydrophobic surface), (ii) the ionic strength of the solution, (iii) the concentration of surface active compounds in the solution, and (iv) the type of virus used. (+info)End group of naturally terminated and UV lesion terminated T7 in vitro RNA. (3/3698)
The 3' terminal nucleosides of RNA transcribed in vitro by E. coli RNA polymerase from T7 DNA and UV irradiated TN DNA were determined. The 3' terminal nucleoside of naturally terminated (t1 termination site) RNA cytidine. In the case of RNA terminated at UV lesions, it is cytidine in 0 per cent of the molecules and adenosine in the remaining 30 per cent. Cytidine trialcohols are labile in high concentrations of KOH and at high temperature and appear to convert to uridine. (+info)Evolutionary relationships among diverse bacteriophages and prophages: all the world's a phage. (4/3698)
We report DNA and predicted protein sequence similarities, implying homology, among genes of double-stranded DNA (dsDNA) bacteriophages and prophages spanning a broad phylogenetic range of host bacteria. The sequence matches reported here establish genetic connections, not always direct, among the lambdoid phages of Escherichia coli, phage phiC31 of Streptomyces, phages of Mycobacterium, a previously unrecognized cryptic prophage, phiflu, in the Haemophilus influenzae genome, and two small prophage-like elements, phiRv1 and phiRv2, in the genome of Mycobacterium tuberculosis. The results imply that these phage genes, and very possibly all of the dsDNA tailed phages, share common ancestry. We propose a model for the genetic structure and dynamics of the global phage population in which all dsDNA phage genomes are mosaics with access, by horizontal exchange, to a large common genetic pool but in which access to the gene pool is not uniform for all phage. (+info)Sequence of Shiga toxin 2 phage 933W from Escherichia coli O157:H7: Shiga toxin as a phage late-gene product. (5/3698)
Lysogenic bacteriophages are major vehicles for the transfer of genetic information between bacteria, including pathogenicity and/or virulence determinants. In the enteric pathogen Escherichia coli O157:H7, which causes hemorrhagic colitis and hemolytic-uremic syndrome, Shiga toxins 1 and 2 (Stx1 and Stx2) are phage encoded. The sequence and analysis of the Stx2 phage 933W is presented here. We find evidence that the toxin genes are part of a late-phage transcript, suggesting that toxin production may be coupled with, if not dependent upon, phage release during lytic growth. Another phage gene, stk, encodes a product resembling eukaryotic serine/threonine protein kinases. Based on its position in the sequence, Stk may be produced by the prophage in the lysogenic state, and, like the YpkA protein of Yersinia species, it may interfere with the signal transduction pathway of the mammalian host. Three novel tRNA genes present in the phage genome may serve to increase the availability of rare tRNA species associated with efficient expression of pathogenicity determinants: both the Shiga toxin and serine/threonine kinase genes contain rare isoleucine and arginine codons. 933W also has homology to lom, encoding a member of a family of outer membrane proteins associated with virulence by conferring the ability to survive in macrophages, and bor, implicated in serum resistance. (+info)Induction of prophages of enterohemorrhagic Escherichia coli O157:H7 with norfloxacin. (6/3698)
Norfloxacin (NFLX) caused induction of prophages VT1 and VT2 of enterohemorrhagic Escherichia coli O157 at subinhibitory concentrations. In time course experiments, we observed the following sequential events: upon induction, the phage genomes underwent multiplication; the amount of stx genes increased; and subsequently, large quantities of toxins VT1 and VT2 were produced. Further studies showed that the molecular mechanism of prophage induction is closely related to the RecA system since the prophage VT2 was not induced with NFLX in a recA mutant strain. (+info)A complex control circuit. Regulation of immunity in temperate bacteriophages. (7/3698)
Temperate bacteriophages can display in a stable way two essentially different behaviours. In the immune state, a gene (cI) produces a repressor which prevents expression of all the other viral genes; in the non-immune state the typically viral functions are expressed. The choice between the two pathways and the establishment of one of them have much in common with cell determination and differentiation. This choice depends on a complex control system, in fact one of the most intricate nets of regulation known in some detail. Our paper provides a formal description and partial analysis of this regulatory net. It is shown that even for relatively simple known models, this kind of analysis uncovers predictions which had previously remained hidden. Some of these predictions were checked experimentally. The experimental part chiefly deals with the efficiency of lysogenization by thermoinducible lambda phage carrying mutations in one or more of the regulatory genes, N, cro and cII. Although N- mutations are widely known for preventing efficient integration, and both N- and cII mutations for preventing efficient establishment of immunity, it is shown that, as predicted by a simple model, both N- and cII- phage efficiently lysogenize at low temperature if they are in addition cro-. In contrast with lambda N- cro+, lambda N- cro- is not propagated as a plasmid at low temperature, precisely because it establishes immunity too efficiently. Genetic control circuits are described in terms of sets of logic equations, which relate the state of expression of genes or of chemical reactions (functions) to input (genetic and environmental) variables and to the presence of gene and reaction products (internal, or memorization varibles). From the set of equations, one derives a matrix which shows the stable stationary states (if any) of the system, and from which one can derive the pathways (temporal sequences of states) consistent with the model. This kind of analysis is complementary to the more widely used analysis based on differential equations; it allows one to analyze in less detail more complex systems. The language might be used as well, mutatis mutandis, in fields very different from genetics. The last part of the discussion deals with the role of positive feedback loops in our specific problem (establishment and maintenance of immunity in temperate bacteriophages) and in developmental genetics in general. As a generalization of an old idea, it is suggested that cell determination (for a given character) depends on a set of genes whose interaction constitutes a positive feedback loop. Such a system has two stable stationary states: which one is chosen will usually depend on additional controls grafted on the loop. (+info)Filamentous phage replication initiator protein gpII forms a covalent complex with the 5' end of the nick it introduced. (8/3698)
Rolling circle type DNA replication is initiated by introduction of a nick in the leading strand of the origin by the initiator protein, which in most cases binds covalently to the 5' end of the nick. In filamentous phage, however, such a covalent complex has not been detected. Using a suitable substrate and short reaction time, we show that filamentous phage initiator gpII forms a covalent complex with nicked DNA, which rapidly dissociates unless gpII is inactivated. A peptide-DNA complex was isolated from trypsin digest of the complex by ion-exchange column chromatography and gel filtration, and its peptide sequence was determined. The result indicated that gpII was linked to DNA by the tyrosine residue at position 197 from the N-terminus. The mutant protein in which this tyrosine was replaced by phenylalanine did not show any detectable activity to complement gene II amber mutant phage in vivo. In vitro, the mutant protein recognized the origin and bent DNA as well as the wild-type does, but failed to introduce a nick and to relax the superhelicity of cognate DNA. (+info)
Escherichia coli bacteriophage lambda ATCC ® 77359™
Escherichia coli bacteriophage T4 ATCC ® 11303-B4™
Frontiers | Corrigendum: Morphologically Distinct Escherichia coli Bacteriophages Differ in Their Efficacy and Ability to...
Isolation, Molecular Characterization and Insight into the Genome Sequence of E. coli Bacteriophage ADB-2 from Poultry Fecal...
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Bacteriophage M13 procoat protein inserts into the plasma membrane as a loop structure | Science
TIGR01629
Barriers to coliphage infection of commensal intestinal flora of laboratory mice | Virology Journal | Full Text
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Bio572: Site-Directed Mutagenesis
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EC 3.6.1.12
Ribonucleic acid synthesis by Escherichia coli C 3000/L after infection by the ribonucleic acid coliphage ZIK/1, and properties...
RCSB PDB
- 1GVP: GENE V PROTEIN (SINGLE-STRANDED DNA BINDING PROTEIN) Macromolecule Annotations Page
TCDB » SEARCH
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Maturation of a single λ phage particle from a dimeric circular λ DNA
Best 25+ Celula eucariota maqueta ideas on Pinterest | Celula animal maqueta, Las celulas animal and Célula animal
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Bacteriophage MS2 - Wikipedia
Replication of bacteriophage lambda DNA<...
photographs & delusion: LULALULALULA
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Genome size - Bacteriophage Lambda - BNID 105770
Frontiers | Emerging methods to study bacteriophage infection at the single-cell level | Microbiology
Inactivation of Some Coliphages with Copper-Thiol Complexes | Microbiology Society
Bacteriophage Lysogeny
Are bacteriophages picky eaters?
Science Source Stock Photo - Bacteriophage Illustration
Regulation by a cascade in phages | Regulation of Gene Expression Cricuit of Lytic Cycle and Lysogeny in Bacteriophages |...
Bacteriophage - Stock Image F002/0293 - Science Photo Library
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Plating and Transferring Bacteriophage Libraries - Current Protocols
New Beachcomber 2 Fine Art Print by Lula Bijoux & Company at FulcrumGallery.com
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Coliphage
A coliphage is a type of bacteriophage that infects coliform bacteria such as Escherichia coli. Coliphage originate almost ... Coliphage levels reflect the persistence of pathogenic viruses in the environment and have been proposed as an indicator of ... Coliphages at the US National Library of Medicine Medical Subject Headings (MeSH) A science project targeted towards students ... Nappier SP, Hong T, Ichida A, Goldstone A, Eftim SE (April 2019). "Occurrence of coliphage in raw wastewater and in ambient ...
Robert E. W. Hancock
Cross resistance amongst coliphages (PhD thesis). University of Adelaide. Retrieved 2021-07-25. Hancock, R.E.W. (2001). " ...
Ff phages
Pratt D, Tzagoloff H, Beaudoin J (September 1969). "Conditional lethal mutants of the small filamentous coliphage M13. II. Two ... Pratt D, Tzagoloff H, Erdahl WS (November 1966). "Conditional lethal mutants of the small filamentous coliphage M13. I. ... "Ff coliphages: structural and functional relationships". Microbiological Reviews. 50 (4): 401-27. doi:10.1128/MR.50.4.401- ...
Campylobacter
Fletcher RD (1965). "Activity and morphology of Vibrio coli phage". American Journal of Veterinary Research. 26 (111): 361-4. ...
A1 broth
Suan, Sim Tiow; Chuen, Ho Yueh; Sivaborvorn, Komol (September 9, 1988). "Southeast Asian experiences with the coliphage test". ...
Bacteriophage experimental evolution
Alterations of receptor specificities of coliphages of the T2 family. J. Mol. Biol. 240:105-110. The older phage literature, e. ...
Helios Murialdo
Chow, S; Daub, E; Murialdo, H (1987). "The Overproduction of DNA Terminase of Coliphage Lambda". Gene. 60 (2-3): 277-289. doi: ...
P1 phage
Walker, J T; D H Walker (March 1983). "Coliphage P1 morphogenesis: analysis of mutants by electron microscopy". Journal of ...
Virulence-related outer membrane protein family
Barondess JJ, Beckwith J (August 1990). "A bacterial virulence determinant encoded by lysogenic coliphage lambda". Nature. 346 ...
Filamentous bacteriophage
Pratt D, Tzagoloff H, Beaudoin J (September 1969). "Conditional lethal mutants of the small filamentous coliphage M13. II. Two ... Pratt D, Tzagoloff H, Erdahl WS (November 1966). "Conditional lethal mutants of the small filamentous coliphage M13. I. ...
Polyphage
Pratt, D. (1969). "Conditional lethal mutants of the small filamentous coliphage M13: II. Two genes for coat proteins". ...
Phi X 174
"Horizontal gene transfer and the evolution of microvirid coliphage genomes". Journal of Bacteriology. 188 (3): 1134-42. doi: ...
Glycoside hydrolase family 108
Stojković EA, Rothman-Denes LB (2007). "Coliphage N4 N-acetylmuramidase defines a new family of murein hydrolases". J Mol Biol ...
Microviridae
Horizontal Gene Transfer and the Evolution of Microvirid Coliphage Genomes. Journal of Bacteriology, 118(3) p1134-1142 ...
T1 holin family
Additionally, Gp9 of E. coli phage phiE49 is similar in sequence. These proteins are short, 55 to 71 amino acyl residues (aas) ...
Developmental noise
Chapman-McQuiston, E. (2007). "The Effect of Noisy Protein Expression on E. coli/Phage Dynamics". {{cite journal}}: Cite ...
Marilyn Kozak
Kozak, M; Nathans, D (14 September 1972). "Differential inhibition of coliphage MS2 protein synthesis by ribosome-directed ...
Human viruses in water
Some types of coliphages (a type of bacteriophage) are inactive in an of air-water-solid interface. This is due to the ... In a experiments that used E.coli phages, Qβ, fr, T4, and MS2 confirmed that viruses survive on a solid surface longer compared ...
Endo-alpha-sialidase
Tomlinson S, Taylor PW (August 1985). "Neuraminidase associated with coliphage E that specifically depolymerizes the ...
Bacteriophage P2
Birkeland, N.K. and B.H. Lindqvist, Coliphage P2 late control gene ogr: DNA sequence and product identification. Journal of ... 39(4): p. 839-860 Lindqvist, B.H., Vegetative DNA of temperate coliphage P2. Molecular and General Genetics, 1971. 110(2): p. ... Site-specific recombination links the evolution of P2-like coliphages and pathogenic enterobacteria. Molecular Biology and ...
Phage therapy
Bruttin A, Brüssow H (July 2005). "Human volunteers receiving Escherichia coli phage T4 orally: a safety test of phage therapy ... February 2016). "Oral Phage Therapy of Acute Bacterial Diarrhea With Two Coliphage Preparations: A Randomized Trial in Children ... they investigated the oral administration of Escherichia coli phage T4 and they found no adverse effects of the treatment. ...
Phage P22 tailspike protein
Barbirz S, Müller JJ, Uetrecht C, Clark AJ, Heinemann U, Seckler R (Jul 2008). "Crystal structure of Escherichia coli phage ...
National Waterway 1
These sediments release Copper and Chromium and have bactericidal properties that multiply coliphages reducing and ultimately ...
Escherichia virus T4
"Comparative genomics of the T4-Like Escherichia coli phage JS98: implications for the evolution of T4 phages". J. Bacteriol. ...
Temperateness (virology)
In virology, temperate refers to the ability of some bacteriophages (notably coliphage λ) to display a lysogenic life cycle. ...
Bacteriocin
... and coliphage HSA virus; each of enterocin AAR-71 class IIa, enterocin AAR-74 class IIa, and erwiniocin NA4 against coliphage ...
T7 holin family
Nguyen, Huong Minh; Kang, Changwon (2014-02-01). "Lysis delay and burst shrinkage of coliphage T7 by deletion of terminator Tφ ...
Chi site
In reference to E. coli phage lambda, the term is sometimes written as "χ site", using the Greek letter chi; for E. coli and ...
Portable Aqua Unit for Lifesaving
... coliphages). A system based on ultrafiltration system (unlike Reverse osmosis based units) is not able to filter out solutes ...
Biofilm
... destruction caused by the E. coli phage Rac and the P. aeruginosa prophage Pf4 causes detachment of cells from the ...
Coliphages as ecological indicators of enteroviruses in various water systems*
Plus it
Genome sequence and characterisation of coliphage vB_Eco_SLUR29. Ibrahim Besler, Pavelas Sazinas, Christian Harrison, Lucy ... Genome sequence and characterisation of coliphage vB_Eco_SLUR29 Message Subject (Your Name) has forwarded a page to you from ... Despite this there is still much to be discovered about the diversity of coliphage genomes. Within this study we isolated a ... Bacteriophage that infect Escherichia coli are relatively easily isolated, with greater than 600 coliphage genomes sequenced to ...
Genetic, Structural, and Phenotypic Properties of MS2 Coliphage with Resistance to ClO<sub>2</sub>...
Here, we investigated the resistance of MS2 coliphage to inactivation by chlorine dioxide (ClO2). ClO2 inactivates MS2 by ... Dive into the research topics of Genetic, Structural, and Phenotypic Properties of MS2 Coliphage with Resistance to ClO2 ... Genetic, Structural, and Phenotypic Properties of MS2 Coliphage with Resistance to ClO2 Disinfection. Environmental Science and ... Genetic, Structural, and Phenotypic Properties of MS2 Coliphage with Resistance to ClO2 Disinfection. In: Environmental Science ...
Appendix A: Glossary of Terms Drinking Water Advisory Communications Toolbox | Water, Sanitation, & Hygiene-related Emergencies...
Coliphages infect coliform bacteria. Coliphages do not infect humans or cause illness. A positive test for coliphages indicates ... Coliphage: A virus that infects bacteria is called a phage. Phages infect specific species of bacteria. ... Fecal coliform indicators: Groups of microbes, such as E. coli, enterococci, and coliphage, used under the Groundwater Rule to ...
Antibody-selectable filamentous fd phage vectors: affinity purification of target genes
Browsing by Author "Červenka, J."
Base-unpaired regions in supercoiled replicative form DNA of coliphage M13 - Fingerprint
- Houston Methodist Scholars
NIOSHTIC-2 Search Results - Full View
Somatic coliphages were detected in 98% of samples (geometric mean 24 +/- 4.1 PFU per 100 ml), and F+ coliphages were detected ... Hepatitis E virus and coliphages in waters proximal to swine concentrated animal feeding operations. ... and all of the F+ RNA coliphages belonged to genogroup I. Although the pervasiveness of swine CAFOs in this area prevented a ... and coliphages. HEV was detected in one sample. ... of the F+ coliphage isolates were RNA phage, ...
Molecular mechanism of heat shock-provoked disassembly of the coliphage lambda replication complex - IBB PAS Repository
The process of infection with coliphage T7. I. Characterization of T7 RNA by polyacrylamide gel electrophoretic analysis -...
Decay rates of Escherichia coli, Enterococcus spp., F-specific bacteriophage MS2, somatic coliphage and human adenovirus in...
Browsing by Author "Červenka, J."
Assessing Public Health Threat Assc. w/ Waterborne Cryptosporidiosis
In situ structures of the genome and genome-delivery apparatus in a single-stranded RNA virus | Nature
appendix E10
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European Environment Agency
Frontiers | More Is Better: Selecting for Broad Host Range Bacteriophages
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The EPA National Library Catalog | EPA National Library Network | US EPA
Method 1601 : Male-specific (F+) and somatic coliphage in water by two-step enrichment procedure : April 2000 draft.. 2000. ... Method 1602 : Male-specific (F+) and somatic coliphage in water by single agar layer (SAL) procedure : April 2000 draft.. 2000 ... Method 1601 : male-specific (F+) and somatic coliphage in water by two-step enrichment procedure.. 2001. ...
Robert Li : USDA ARS
Complete genome sequence of Escherichia coli Phage vB_EcoS Sa179lw isolated from surface water in a produce-growing area in ... Complete genome sequence of Escherichia coli Phage vB_EcoS Sa179lw isolated from surface water in a produce-growing area in ... Complete genome sequence of Escherichia coli phage vB_EcoM Sa157lw, isolated from surface water collected in Salinas, ... Complete genome sequence of Escherichia coli phage vB_EcoM Sa157lw, isolated from surface water collected in Salinas, ...
Légis Québec
... no F-specific coliphage viruses, pathogenic microorganisms or indicator microorganisms of fecal contamination are excluded from ... F-specific coliphage viruses, pathogenic microorganisms or indicator microorganisms of fecal contamination, have undergone a ... F-specific coliphage viruses, pathogenic microorganisms or indicator microorganisms of fecal contamination, the advisory to ... taken or stored that supplies the distribution system at least once a month to test for the presence of F-specific coliphage ...
Microbiology Testing | SGS Finland
A Genomic Census of the Chicken Gut Microbiome using Metagenomics and Culture | Research Square
Synteny between predicted coliphages and their respective reference genomes were visualised using EasyFig [34]. Escherichia ... 2b). Interestingly, more than one genus of coliphage (e.g. Jilinvirus, Phapecoctavirus, or Gamaleyavirus) was often detected in ... Coverage values for four identified coliphages showing similarity to known bacteriophage genomes of Escherichia coli across the ... Complete genome sequence of the novel Escherichia coli phage phAPEC8. J Virol. 2012;86:13117-8. ...
Page 4: Guidelines for Canadian Recreational Water Quality - Third Edition - Canada.ca
117 results in SearchWorks articles
Final Report Summary - PHAGOBURN (Evaluation of phage therapy for the treatment of Escherichia coli and Pseudomonas aeruginosa...
Somatic coliphageEscherichiaVIRUSESColiformsInactivationInfectMolecularDiversitySalmonellaWatersWaterStudyMethodsPhageSomatic coliphagesFecalColiformLysogenicBacterialPolymerasePhagesViralColiBacteriophagesDouble Agar LayerEnumerationVirusesIsolatesCharacterizationProteinVirusContaminationSamplesAnalysisSpecificPresence
Somatic coliphage2
Escherichia1
- Bacteriophage that infect Escherichia coli are relatively easily isolated, with greater than 600 coliphage genomes sequenced to date. (biorxiv.org)
VIRUSES2
- A positive test for coliphages indicates the water may be contaminated with feces or E. coli or viruses. (cdc.gov)
- Coliphages have been recommended as more trustworthy indicators when it comes to finding viruses in water sources, learn more about coliphages and the detection of viruses. (labunlimited.com)
Coliforms1
- Samples were evaluated for levels of fecal contamina- tion by using fecal coliforms and somatic coliphages. (cdc.gov)
Inactivation1
- Here, we investigated the resistance of MS2 coliphage to inactivation by chlorine dioxide (ClO 2 ). (utmb.edu)
Infect3
Molecular1
- The diversity of coliphages and indigenous coliform strains (ICSs) simultaneously within horse feces was investigated by culture-based and molecular methods. (hoot4owls.org)
Diversity1
- Despite this there is still much to be discovered about the diversity of coliphage genomes. (biorxiv.org)
Salmonella1
- Somatic coliphages were enumerated according to can also transduce resistance genes from Salmonella enter- the standard method. (cdc.gov)
Waters2
- Hepatitis E virus and coliphages in waters proximal to swine concentrated animal feeding operations. (cdc.gov)
- Surface water samples (n=154) were collected from public access waters in proximity to swine CAFO spray fields for six months and were tested for hepatitis E virus (HEV) and coliphages. (cdc.gov)
Water1
- Why does WHO recommend testing for coliphages to ensure water quality? (bluephage.com)
Study1
- Within this study we isolated a coliphage from cattle slurry collected from a farm in rural England. (biorxiv.org)
Methods1
- Bluephage provides a series of Easy Kits to analyze coliphages according to ISO and US-EPA methods, improving its performance as they are kits containing all the material requested and are ready to use, reducing the execution time considerably. (bluephage.com)
Phage4
- This study reports on the use of naturally occurring F-specific coliphages, as well as spiked MS-2 phage, to evaluate a land-based effluent treatment/reuse system and an effluent irrigation scheme. (qld.gov.au)
- All three phage genomes included a homologue of the tum gene of coliphage 186, which encodes a LexA-repressed cI antirepressor. (elsevier.com)
- Fast Phage is an EPA approved test for detecting coliphage in water that provides an early warning in 8 hours and is confirmed the next morning. (charm.com)
- T4 coliphage is a phage that infect coliform bacteria especially E.coli . (biotechfront.com)
Somatic coliphages9
- Samples were evaluated for levels of fecal contamina- tion by using fecal coliforms and somatic coliphages. (cdc.gov)
- Somatic coliphages are those which infect cells. (cdc.gov)
- Somatic coliphages were enumerated according to can also transduce resistance genes from Salmonella enter- the standard method. (cdc.gov)
- Somatic coliphages were detected in 98% of samples (geometric mean 24 +/- 4.1 PFU per 100 ml), and F+ coliphages were detected in 85% of samples (geometric mean 6.8 +/- 5.0 PFU per 100 ml). (cdc.gov)
- As traditional bacterial indicators are poor viral indicators, there is a need for alternative methods, such as the use of somatic coliphages, which have been included in water safety regulations in recent years. (helsinki.fi)
- This host strain has been designed for its use in the detection and enumeration of somatic coliphages according to the ISO 10705-2 method. (ixole.es)
- It can be used with the Enumeration of Somatic Coliphages Kit (Kit Cat. (ixole.es)
- No. BP1601), the Enumeration of Somatic Coliphages in Drinking Water Kit (Cat. (ixole.es)
- This positive control has been designed for its use in the detection and enumeration of somatic coliphages according to the ISO 10705-2,US-EPA 1601, 1602, 1642 and 1643 methods. (ixole.es)
Fecal4
- It has been understood that the presence of coliphages (bacteriophages specific for E. coli) in water is an indirect measurement of fecal contamination. (sc.edu)
- Charm's water quality diagnostics help protect and improve water quality by rapidly identifying fecal indicators and contaminants, such as coliphage, coliform, and E. coli, to identify "at risk" water supplies for viral and bacterial pathogens. (charm.com)
- Coliphage is a virus particle to coliform bacteria and is considered a viral fecal indicator in ground water that complements bacterial fecal monitoring. (charm.com)
- Hernández, N. and R. Rios, "Evaluation of Coliphage and Fecal Coliform Densities on the Principal Canal of the Irrigation System in Southwestern Puerto Rico, presented at the XXVIII AIDIS Congress, published in the Proceedings, Cancun, Mexico, October 2002. (uprrp.edu)
Coliform2
- Coliphages infect coliform bacteria. (cdc.gov)
- M. Martins, G. Castillo and B. J Dutka, "Evaluation of Drinking Water Treatment Plant Efficiency in Microorganism Removal by the Coliphage, Total Coliform and H2S Paper Strip Test," Water Science and Technology, Vol. 3, No. 35, 1997, pp. 403-407. (scirp.org)
Lysogenic3
- A bacterial virulence determinant encoded by lysogenic coliphage lambda. (microbiologyresearch.org)
- Lysogenic for coliphage lambda. (carolina.com)
- Under the direction of Dr. Jill Stewart, Sharon studied the potential contribution of lysogenic phages in coliphage enumeration methods. (ladlab.org)
Bacterial1
- Seven wells tested positive for enterococci and Arcobacter (an emerging bacterial pathogen), and F + -specific coliphage was present in four wells. (nih.gov)
Polymerase1
- Polymerase chain reaction (PCR) analysis was conducted on all samples collected in order to characterize any possible coliphages identified via plaque assays. (sc.edu)
Phages1
- The rods are com-posed of two hollow cylindrical structures that are stri-king-ly similar to tail components - core and contracted sheath - of various phages, e.g., the T-even coliphages. (asmblog.org)
Viral3
- Comparison of coliforms and coliphages as tools for assessment of viral contamination in river water. (sigmaaldrich.com)
- Coliphage may also be used as a viral process indicator in water recharge applications and waste water treatment before discharge. (charm.com)
- EPA convened a group of twelve internationally acknowledged specialists on the state of the science of coliphage and their usefulness as a viral indicator for the protection of public well being in recreational waters. (thehazelbloom.com)
Coli3
- A positive test for coliphages indicates the water may be contaminated with feces or E. coli or viruses. (cdc.gov)
- Among these discoveries was that T-even coliphages contract their tail upon absorption to their E. coli hosts. (asmblog.org)
- This is the equivalent of the 2nd year prac I used to do, when we made students screen water obtained from the environment with E coli to see if they could amplify coliphages out of it. (rybicki.blog)
Bacteriophages1
- These findings confirm that there are indeed bacteriophages present in the Brookgreen Gardens aviary, and that pH, turbidity, and temperature did not appear to play a prominent role in the presence of the coliphages. (sc.edu)
Double Agar Layer1
- Quantification of infectious MS2 coliphage was carried out using a double agar layer procedure. (umn.edu)
Enumeration3
- The ISO Easy Kit is designed to eliminate the tedious and time-consuming process of standardized ISO protocols for the detection and enumeration of somatic and F-specific coliphages. (ixole.es)
- Our specially crafted ISO Easy Kits (BP1601 and BP1604) are designed to eiminate the tedious and time-consuming process of of the standardized ISO 10705-2 protocol for the detection and enumeration of both somatic and F-specific coliphages. (ixole.es)
- Available for somatic and F-specific coliphage enumeration. (ixole.es)
Viruses1
- This pilot study analyzes the relationship between the presence of coliphages in the water in the aviary at Brookgreen Gardens and how environmental factors such as temperature, pH, and turbidity affect the presence of these viruses over the time period of three months (June 2017 through August 2017). (sc.edu)
Isolates1
- Comparison of our isolates to their closest relative, coliphage T5, revealed high overall synteny of the genomes and high conservation of the sequences of almost all structural proteins as well as of the other proteins with identified functions. (utmb.edu)
Characterization1
- Rothman-Denes, L. B. / Purification and characterization of the coliphage N4-coded single-stranded DNA binding protein . (elsevier.com)
Protein2
- We have purified and characterized a single-stranded DNA binding protein (N4 SSB) induced after coliphage N4 infection. (elsevier.com)
- The protein coats or ghosts of coliphage T2. (wikidata.org)
Virus2
- Hepatitis E virus and coliphages in waters proximal to swine concentrated animal feeding operations. (cdc.gov)
- We also just received our other tests for Listeria and MS2 coliphage, which is a virus, and we are beyond excited at the results. (rovingblue.com)
Contamination1
- Group III coliphages were only detected at the sampling site in the vicinity of the international boundary, indicating human faecal contamination. (elsevier.com)
Samples1
- All PCR tests conducted on samples were deemed negative for coliphage presence, indicating that these coliphages are especially unique or may be RNA-based. (sc.edu)
Analysis2
- It contains all the consumables and biological material required to perform the analysis, including freeze-dried specific host-cells for the somatic coliphage group, which are ready for use after 120 min of incubation. (ixole.es)
- When only biological materials are required, our calibrated, ready-to-use materials solution will help you perform coliphage analysis. (ixole.es)
Specific1
- As the New River traverses through the US region, groups I and IV coliphages were predominantly identified, but no human-specific genotypes were detected. (elsevier.com)
Presence1
- Plaque assays were conducted to look for the presence of the coliphages. (sc.edu)