The ultrastructure of a doliolid and a copepod
... cellular alterations after being ingested by D. gegenbauri (Fig. 4d–f ). We estimate that the residence time of ingested cells exposed to digestive enzymes does not surpass 30 min at a release rate of 8 pellets h21. That implies a limited period of exposure to digestive fluids during which a flagell ...
... cellular alterations after being ingested by D. gegenbauri (Fig. 4d–f ). We estimate that the residence time of ingested cells exposed to digestive enzymes does not surpass 30 min at a release rate of 8 pellets h21. That implies a limited period of exposure to digestive fluids during which a flagell ...
Pseudomonas aeruginosa and Antibacterial Resistance
... trauma can become colonized with antibiotic-resistant, hospital-derived P. aeruginosa strains that are not easily eradicated with antibiotic therapy. 31,32 In cystic fibrosis patients, when the strains are eventually selected out by antibiotic therapy to become multiply-resistant, an increase in the ...
... trauma can become colonized with antibiotic-resistant, hospital-derived P. aeruginosa strains that are not easily eradicated with antibiotic therapy. 31,32 In cystic fibrosis patients, when the strains are eventually selected out by antibiotic therapy to become multiply-resistant, an increase in the ...
Marine
... Effect of fluid shear A defined laminar shear environment was obtained using a rotating cylinder apparatus (van Duuren 1968) consisting of two vertically aligned concentric acrylic cylinders separated by a 9-mm gap. The fixed inner cylinder was 8 em in diameter and 15 em high. The outer cylinder rot ...
... Effect of fluid shear A defined laminar shear environment was obtained using a rotating cylinder apparatus (van Duuren 1968) consisting of two vertically aligned concentric acrylic cylinders separated by a 9-mm gap. The fixed inner cylinder was 8 em in diameter and 15 em high. The outer cylinder rot ...
Polyethyleneimine is an effective permeabilizer of Gram
... bacterial cells, especially if the cultures had been centrifuged with refrigeration. Suspensions of P . aeruginosa were particularly prone to precipitation, and for this reason P . aeruginosa could not be tested with PEI concentrations higher than 20 pg ml-'. The well-known permeabilizer EDTA, which ...
... bacterial cells, especially if the cultures had been centrifuged with refrigeration. Suspensions of P . aeruginosa were particularly prone to precipitation, and for this reason P . aeruginosa could not be tested with PEI concentrations higher than 20 pg ml-'. The well-known permeabilizer EDTA, which ...
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... MBFCNC-2(1) (Malik et al. 2009; Malik 2012). The strain MBF8-1 carried two gtf, whereas strain MBF8-2 exhibited one gtf and one ftf. Unique features of these genes were discussed in previous study, and thus generated a challenge for further characterization of the FTF/GTF proteins. The strain MBFCNC ...
... MBFCNC-2(1) (Malik et al. 2009; Malik 2012). The strain MBF8-1 carried two gtf, whereas strain MBF8-2 exhibited one gtf and one ftf. Unique features of these genes were discussed in previous study, and thus generated a challenge for further characterization of the FTF/GTF proteins. The strain MBFCNC ...
Academic paper: The free-living amoeba Willaertia magna, is
... Hartmannella and Acanthamoeba amoebas effectively remained when compared to controls, while Willaertia still formed a dense monolayer of cells similar to control. Following infection, Hartmannella and Acanthamoeba trophozoites became progressively rounded, shrivelled, and lost their adherence abilit ...
... Hartmannella and Acanthamoeba amoebas effectively remained when compared to controls, while Willaertia still formed a dense monolayer of cells similar to control. Following infection, Hartmannella and Acanthamoeba trophozoites became progressively rounded, shrivelled, and lost their adherence abilit ...
PDF - Nexus Academic Publishers
... broad spectrum of activity against Streptococcus suis, swine pathogen causing endocarditis and is also a zoonotic pathogen (Lun et al., 2007). Ply3626, a lysin against Clostridium perfringens, showed good effect in controlling the pathogen in poultry houses. Ply511 is a Listeria monocytogenes phage ...
... broad spectrum of activity against Streptococcus suis, swine pathogen causing endocarditis and is also a zoonotic pathogen (Lun et al., 2007). Ply3626, a lysin against Clostridium perfringens, showed good effect in controlling the pathogen in poultry houses. Ply511 is a Listeria monocytogenes phage ...
Knowledge of the physiology of spore
... Cell-to-cell communication via quorum-sensing signals allows detection of “sufficient nutrient per cell” information so as to retain enough energy for the entire sporulation process [26]. This explains why quorum-sensing and starvation pathways regulate each other (for more details, see [27]). Unlik ...
... Cell-to-cell communication via quorum-sensing signals allows detection of “sufficient nutrient per cell” information so as to retain enough energy for the entire sporulation process [26]. This explains why quorum-sensing and starvation pathways regulate each other (for more details, see [27]). Unlik ...
Strategies of aerobic ammonia-oxidizing bacteria
... dominated by members of the Nitrosomonas europaea lineage, whereas in the high-DO reactor members of the Nitrosomonas oligotropha lineage were prevalent. However, the AOB community in the high-DO reactor shifted from the Nitrosomonas oligotropha lineage to the Nitrosomonas europaea lineage without l ...
... dominated by members of the Nitrosomonas europaea lineage, whereas in the high-DO reactor members of the Nitrosomonas oligotropha lineage were prevalent. However, the AOB community in the high-DO reactor shifted from the Nitrosomonas oligotropha lineage to the Nitrosomonas europaea lineage without l ...
Temperature-dependent expression of flagella in Legionella
... M. Ott and others Table 1. Analysis offlagellation of Legionella strains ...
... M. Ott and others Table 1. Analysis offlagellation of Legionella strains ...
PloS One
... (diffusible signal factor) is responsible for the regulation of phenotypes in pathogenic Stenotrophomonas, up until now, no beneficial effects were reported to be controlled by it. Our objective was to study the function of DSF in the plant growth promoting model strain S. maltophilia R551-3 using f ...
... (diffusible signal factor) is responsible for the regulation of phenotypes in pathogenic Stenotrophomonas, up until now, no beneficial effects were reported to be controlled by it. Our objective was to study the function of DSF in the plant growth promoting model strain S. maltophilia R551-3 using f ...
Vibrio cholerae 01 Can Assume a Chlorine
... shield individual cells from killing by disinfectants, such as chlorine, or lysis by complement. Vibrios are an important component of marine biofilms, and it is possible that the exopolysaccharide produced by V cholerae plays a role in marine biofilm formation; this, in tum, may contribute to attac ...
... shield individual cells from killing by disinfectants, such as chlorine, or lysis by complement. Vibrios are an important component of marine biofilms, and it is possible that the exopolysaccharide produced by V cholerae plays a role in marine biofilm formation; this, in tum, may contribute to attac ...
Host cell-derived lactate functions as an effector molecule in
... The human restricted pathogen Neisseria meningitidis is a major cause of bacterial meningitis and sepsis worldwide. Colonization of the mucosal layer in the upper respiratory tract is essential to establish invasive disease. The initial interaction with host cells is characterized by bacterial proli ...
... The human restricted pathogen Neisseria meningitidis is a major cause of bacterial meningitis and sepsis worldwide. Colonization of the mucosal layer in the upper respiratory tract is essential to establish invasive disease. The initial interaction with host cells is characterized by bacterial proli ...
BIO 209 Laboratory Manual - Bluegrass Community and Technical
... techniques, the procedures followed by microbiologists and healthcare workers to prevent contamination from outside sources and to prevent introduction of potentially disease-causing microbes (pathogens) into the human body. The methods for handling previously sterilized materials, for taking sample ...
... techniques, the procedures followed by microbiologists and healthcare workers to prevent contamination from outside sources and to prevent introduction of potentially disease-causing microbes (pathogens) into the human body. The methods for handling previously sterilized materials, for taking sample ...
Interactions of Foodborne Pathogens with Free‐living Protozoa
... While there is no unambiguous definition of “protozoa”, a general agreement is to consider protozoa as heterotrophic protists. Protists are defined by Adl and others (2005) as “eukaryotes with a unicellular level of organization, without cell differentiation into tissues”. FLP comprise protists whic ...
... While there is no unambiguous definition of “protozoa”, a general agreement is to consider protozoa as heterotrophic protists. Protists are defined by Adl and others (2005) as “eukaryotes with a unicellular level of organization, without cell differentiation into tissues”. FLP comprise protists whic ...
Annual Review of Phytopathology
... Green fluorescent protein (GFP) (133) has been used as a marker for noninvasive observation of the fate of individual cells, and its gene has been used as a reporter for the activity of specific promoters (2) and to show that more than one rhizobial species can be present in the same nodule (128). T ...
... Green fluorescent protein (GFP) (133) has been used as a marker for noninvasive observation of the fate of individual cells, and its gene has been used as a reporter for the activity of specific promoters (2) and to show that more than one rhizobial species can be present in the same nodule (128). T ...
this pdf of the schedule
... Whether you are the organiser or the participant, the Global Meetings Program allows you to benefit from the expertise of SkyTeam’s network covering over 1,000 destinations worldwide. Via the online portal, not only can participants obtain discounted travel, but flights and connections are made more ...
... Whether you are the organiser or the participant, the Global Meetings Program allows you to benefit from the expertise of SkyTeam’s network covering over 1,000 destinations worldwide. Via the online portal, not only can participants obtain discounted travel, but flights and connections are made more ...
Antibacterial antibiotics
... Commercial and scientific interest in the antibiotic field has led to the isolation and identification of antibiotic substances that may be numbered in the thousands. Numerous semisynthetic and synthetic derivatives have been added to the total. Very few such compounds have found application in gene ...
... Commercial and scientific interest in the antibiotic field has led to the isolation and identification of antibiotic substances that may be numbered in the thousands. Numerous semisynthetic and synthetic derivatives have been added to the total. Very few such compounds have found application in gene ...
International Journal of Antimicrobial Agents Database screening
... Therefore, the in vitro activity of these six peptides against B. subtilis and P. aeruginosa was also evaluated (Table 2). Whilst ascaphin-8, DASamP2, lycotoxin I and piscidin 1 showed activity both against B. subtilis and P. aeruginosa, maculatin 1.3 was active against B. subtilis but not P. aerugi ...
... Therefore, the in vitro activity of these six peptides against B. subtilis and P. aeruginosa was also evaluated (Table 2). Whilst ascaphin-8, DASamP2, lycotoxin I and piscidin 1 showed activity both against B. subtilis and P. aeruginosa, maculatin 1.3 was active against B. subtilis but not P. aerugi ...
Plant pathogenic bacteria
... • Because the spoiled genes of the mutants do not induce HR, their reproduction rate decrease • Organized in gene clusters 25-30 kb. (in the „island of pathogenicity”) • Localized in the chromosomes or in plasmids (Ralstonia) • Incorporation into pathogens will induce HR • Proteins of the III. rd ty ...
... • Because the spoiled genes of the mutants do not induce HR, their reproduction rate decrease • Organized in gene clusters 25-30 kb. (in the „island of pathogenicity”) • Localized in the chromosomes or in plasmids (Ralstonia) • Incorporation into pathogens will induce HR • Proteins of the III. rd ty ...
Microbial metabolism of short-chain unsaturated hydrocarbons
... tracer gas in air pollution studies [23]. The atmospheric concentrations of the non-methane hydrocarbons ( N M H C ) have been monitored several times at different locations. In urban areas the N M H C - c o n c e n t r a t i o n was in the range of 250-1000 ppbC while concentrations in samples from ...
... tracer gas in air pollution studies [23]. The atmospheric concentrations of the non-methane hydrocarbons ( N M H C ) have been monitored several times at different locations. In urban areas the N M H C - c o n c e n t r a t i o n was in the range of 250-1000 ppbC while concentrations in samples from ...
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... according to Mansi El-Mansi et al. (2000). The integrity of DNA was checked on gel electrophoresis and samples were stored at 20°C. The extracted samples were used to identify the presence of arsenate reductase (arsC) in K. pneumoniae. The oligo nucleotide primers used in this study were designed by ...
... according to Mansi El-Mansi et al. (2000). The integrity of DNA was checked on gel electrophoresis and samples were stored at 20°C. The extracted samples were used to identify the presence of arsenate reductase (arsC) in K. pneumoniae. The oligo nucleotide primers used in this study were designed by ...
Separation of Bacteria, Protozoa and Carbon Nanotubes by Density
... nanomaterials, for example, repetitive washing and centrifugation to isolate the alga Chlorella vulgaris from single-wall carbon nanotubes (SWCNTs) and graphene oxide [9], and filtration to remove CdSe quantum dots from bacteria such as Pseudomonas aeruginosa [10]. Recently, a differential centrifug ...
... nanomaterials, for example, repetitive washing and centrifugation to isolate the alga Chlorella vulgaris from single-wall carbon nanotubes (SWCNTs) and graphene oxide [9], and filtration to remove CdSe quantum dots from bacteria such as Pseudomonas aeruginosa [10]. Recently, a differential centrifug ...
The next generation of bacteriophage therapy
... An overview of potential solutions for overcoming the technical hurdles facing clinical phage therapy. (a) Traditionally, phage cocktails have been the major way of addressing limited phage host ranges and the evolution of phage-resistant cells. The complexity of phage cocktails is limited by issues ...
... An overview of potential solutions for overcoming the technical hurdles facing clinical phage therapy. (a) Traditionally, phage cocktails have been the major way of addressing limited phage host ranges and the evolution of phage-resistant cells. The complexity of phage cocktails is limited by issues ...
Biofilm
A biofilm is any group of microorganisms in which cells stick to each other on a surface. These adherent cells are frequently embedded within a self-produced matrix of extracellular polymeric substance (EPS). Biofilm extracellular polymeric substance, which is also referred to as slime (although not everything described as slime is a biofilm), is a polymeric conglomeration generally composed of extracellular DNA, proteins, and polysaccharides. Biofilms may form on living or non-living surfaces and can be prevalent in natural, industrial and hospital settings. The microbial cells growing in a biofilm are physiologically distinct from planktonic cells of the same organism, which, by contrast, are single-cells that may float or swim in a liquid medium.Microbes form a biofilm in response to many factors, which may include cellular recognition of specific or non-specific attachment sites on a surface, nutritional cues, or in some cases, by exposure of planktonic cells to sub-inhibitory concentrations of antibiotics. When a cell switches to the biofilm mode of growth, it undergoes a phenotypic shift in behavior in which large suites of genes are differentially regulated.