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Chapter II Isolation identification and characterization
... whereas strain VSG-5 is cocci. VSG-1 is non- spore-forming but VSG-5 is of sporeforming bacteria with catalase positive, MR positive and VP negative (Table 2.6). Both are positive for starch hydrolysis, casein hydrolysis, citrate utilization and arginine utilization and negative for indole utilizati ...
... whereas strain VSG-5 is cocci. VSG-1 is non- spore-forming but VSG-5 is of sporeforming bacteria with catalase positive, MR positive and VP negative (Table 2.6). Both are positive for starch hydrolysis, casein hydrolysis, citrate utilization and arginine utilization and negative for indole utilizati ...
Maintaining Viability of Aerobic and Anaerobic Bacteria from
... Different swab systems are used to transport a variety of specimen types to the diagnostic laboratory and these systems often differ depending upon the category of organism being investigated e.g. bacteria, viruses or fungi. The ideal swab system must absorb organisms from the infection site, mainta ...
... Different swab systems are used to transport a variety of specimen types to the diagnostic laboratory and these systems often differ depending upon the category of organism being investigated e.g. bacteria, viruses or fungi. The ideal swab system must absorb organisms from the infection site, mainta ...
13. Clark B, McKendrick M. A review of viral gastroenteritis. Curr
... Pseudomonas aeruginosa (8.51%) and Staphylococcus aureus (4.25%). Antibacterial activity of used antibiotics i.e. Ofloxacin, Gentamicin, Amoxicillin, Cefotaxime against B. cereus was 33.447±3.429, 22.500±3.110, 23.277±3.059 and 12.617±2.889, against E. coli 11.701±2.082, 13.448±2.025, 3.382±1.985 an ...
... Pseudomonas aeruginosa (8.51%) and Staphylococcus aureus (4.25%). Antibacterial activity of used antibiotics i.e. Ofloxacin, Gentamicin, Amoxicillin, Cefotaxime against B. cereus was 33.447±3.429, 22.500±3.110, 23.277±3.059 and 12.617±2.889, against E. coli 11.701±2.082, 13.448±2.025, 3.382±1.985 an ...
Viruses - Sign In
... viruses are parasites. A parasite is an organism that depends entirely upon another living organism for its existence in such a way that it harms that organism. Are viruses alive? If we require that living things be made up of cells and be able to live independently, then viruses are not alive. Howe ...
... viruses are parasites. A parasite is an organism that depends entirely upon another living organism for its existence in such a way that it harms that organism. Are viruses alive? If we require that living things be made up of cells and be able to live independently, then viruses are not alive. Howe ...
Medical Microbiology Microscopic slides and media
... Etest, Epsilometer test (MIC – minimal inhibitory concentration); MIC = 0,125 ...
... Etest, Epsilometer test (MIC – minimal inhibitory concentration); MIC = 0,125 ...
VI.P.1 VI.P.2 Session VI. Environmental microbiology
... e-mail: [email protected] e-mail: [email protected] e-mail: [email protected] ...
... e-mail: [email protected] e-mail: [email protected] e-mail: [email protected] ...
enhancing organophosphorus pesticides detoxification using
... such as water and soil, promptly induces the formation of modified bacteria strains; specifically characterized by their capability for bioremediation such inducing chemicals. In addition, isolates from specific contaminated areas of naturally occurring bacteria, showed variable capabilities for met ...
... such as water and soil, promptly induces the formation of modified bacteria strains; specifically characterized by their capability for bioremediation such inducing chemicals. In addition, isolates from specific contaminated areas of naturally occurring bacteria, showed variable capabilities for met ...
Effect of Natural Sunlight on Bacterial Activity and Differential
... sensitivity of the different bacterial groups naturally occurring in the Northwestern Mediterranean to sunlight. Members of the Gammaproteobacteria and Bacteroidetes groups appeared to be highly resistant to solar radiation, with small changes in activity after exposure. On the contrary, Alphaproteo ...
... sensitivity of the different bacterial groups naturally occurring in the Northwestern Mediterranean to sunlight. Members of the Gammaproteobacteria and Bacteroidetes groups appeared to be highly resistant to solar radiation, with small changes in activity after exposure. On the contrary, Alphaproteo ...
- Wiley Online Library
... are located on the external surface of Gram-negative bacteria in tight association with the peptidoglycan layer and play a key role in bacterial adaptation to environmental changes. The protein bands specific for Omps appeared in the SDS-PAGE of untreated V. harveyi cells, whereas the aPDT-treated c ...
... are located on the external surface of Gram-negative bacteria in tight association with the peptidoglycan layer and play a key role in bacterial adaptation to environmental changes. The protein bands specific for Omps appeared in the SDS-PAGE of untreated V. harveyi cells, whereas the aPDT-treated c ...
Protistology First evidence of bacterial endocytobionts in the lobose
... the same host clone appear to cover a wide phylogenetic range. Although some belong to the same taxa as symbiotic bacteria of other eukaryotic organisms, others are close relatives of human pathogens, suggesting the potential role of Arcella species as reservoires. This idea was supported by the pre ...
... the same host clone appear to cover a wide phylogenetic range. Although some belong to the same taxa as symbiotic bacteria of other eukaryotic organisms, others are close relatives of human pathogens, suggesting the potential role of Arcella species as reservoires. This idea was supported by the pre ...
Antimicrobial Resistance in K. pneumoniae 1 Antimicrobial
... Antimicrobial resistance is most commonly associated with nosocomial infections. This is often due to the fact that hospitals are where the resistant strains tend to first develop. The development of resistance is most often due to the excessive use of antibiotics, sometimes unnecessarily and withou ...
... Antimicrobial resistance is most commonly associated with nosocomial infections. This is often due to the fact that hospitals are where the resistant strains tend to first develop. The development of resistance is most often due to the excessive use of antibiotics, sometimes unnecessarily and withou ...
Cooperative organization of bacterial colonies: from genotype to
... The C morphotype also exhibited a morphology diagram with a profusion of most beautiful and complex patterns (Figure 3) (13, 16, 17). In addition to the enormous difference in morphologies between the genetically similar variants, microscopic observations indicated that the cells were longer than th ...
... The C morphotype also exhibited a morphology diagram with a profusion of most beautiful and complex patterns (Figure 3) (13, 16, 17). In addition to the enormous difference in morphologies between the genetically similar variants, microscopic observations indicated that the cells were longer than th ...
Identification of bacterial agent(s) for acute hepatopancreatic
... bacterial infections (www.enaca.org). However, the potential cause(s) of the disease is still under ...
... bacterial infections (www.enaca.org). However, the potential cause(s) of the disease is still under ...
jmorata/TYPES OF AGAR
... differentiate members of the species Salmonella and Shigella from other Enterobacteriaceae. Bile salts and the dyes bromthymol blue and acid fuchsin inihibit the growth of most Gram positive organisms. Lactose, sucrose, and salicin provide fermentable carbohydrates to encourage the growth and differ ...
... differentiate members of the species Salmonella and Shigella from other Enterobacteriaceae. Bile salts and the dyes bromthymol blue and acid fuchsin inihibit the growth of most Gram positive organisms. Lactose, sucrose, and salicin provide fermentable carbohydrates to encourage the growth and differ ...
Patterns of Collective Bacterial Motion in Microfluidic Devices
... We have studied active and passive forms of pattern formation and synchronized motion in high-density bacterial cell suspensions with phase contrast and epifluorescent videomicroscopy. We have shown that in high-density cultures of non-motile cells sedimentation patterns form. By comparing bacterial ...
... We have studied active and passive forms of pattern formation and synchronized motion in high-density bacterial cell suspensions with phase contrast and epifluorescent videomicroscopy. We have shown that in high-density cultures of non-motile cells sedimentation patterns form. By comparing bacterial ...
Archaea - cloudfront.net
... 1. They both are single-celled, microscopic organisms that can come in a variety of shapes (Figure 1.1). 2. Both archaea and bacteria have a single circular chromosome of DNA and lack membrane-bound organelles. 3. Like bacteria, archaea can have flagella to assist with movement. ...
... 1. They both are single-celled, microscopic organisms that can come in a variety of shapes (Figure 1.1). 2. Both archaea and bacteria have a single circular chromosome of DNA and lack membrane-bound organelles. 3. Like bacteria, archaea can have flagella to assist with movement. ...
Lesson Working regime of microbiological laboratory. The rules of
... Working regime of microbiological laboratory. The rules of the work in the bacteriological laboratory. Microscopy techniques. Immersion microscopy of bacterial smears. Choose the one correct statement: a – at microscopic examination with immersion objective the latter is immersed into the water whos ...
... Working regime of microbiological laboratory. The rules of the work in the bacteriological laboratory. Microscopy techniques. Immersion microscopy of bacterial smears. Choose the one correct statement: a – at microscopic examination with immersion objective the latter is immersed into the water whos ...
Biologically Induced Mineralization by Bacteria
... the inner face of the outer membrane. In gram-negative cells, it is the LPS that is the major factor in catalyzing mineral formation because of its high concentration of phosphate and carboxyl groups (Ferris and Beveridge 1984, 1986a). Members of the Archaea also show gram-positive and gram-negative ...
... the inner face of the outer membrane. In gram-negative cells, it is the LPS that is the major factor in catalyzing mineral formation because of its high concentration of phosphate and carboxyl groups (Ferris and Beveridge 1984, 1986a). Members of the Archaea also show gram-positive and gram-negative ...
Aquatic Microbial Ecology 58:303
... 23 February, the concentration of chl a showed an obvious diel change, basically similar to that of total bacterial abundance (Fig. 2c). The highest concentrations of chl a were measured at 18:00 to 21:00 h, and the lowest values were at midnight or just before dawn. Also, during the day there was a ...
... 23 February, the concentration of chl a showed an obvious diel change, basically similar to that of total bacterial abundance (Fig. 2c). The highest concentrations of chl a were measured at 18:00 to 21:00 h, and the lowest values were at midnight or just before dawn. Also, during the day there was a ...
2016 department of medicine research day
... tularensis has a type VI secretion system (T6SS), a multi-component membrane-puncturing apparatus found in 25% of Gram-negative bacteria, that is responsible for bacterial virulence, as it mediates F. tularensis phagosomal escape and intracellular multiplication in host macrophages. We have identifi ...
... tularensis has a type VI secretion system (T6SS), a multi-component membrane-puncturing apparatus found in 25% of Gram-negative bacteria, that is responsible for bacterial virulence, as it mediates F. tularensis phagosomal escape and intracellular multiplication in host macrophages. We have identifi ...
Bacterial digestive enzyme activity in the stomach and hepatopancreas of Meganyctiphanes norvegica (M. Sars, 1857)
... Whitney, 1968; Lewis, 1980; Mayasich & Smucker, 1987), however, has been comparatively overlooked. A particularly high digestive potential is shown by crustaceans, and they can utilise a wide range of organic substrates. The euphausiid Meganyctiphanes norvegica for example is mainly carnivorous, but ...
... Whitney, 1968; Lewis, 1980; Mayasich & Smucker, 1987), however, has been comparatively overlooked. A particularly high digestive potential is shown by crustaceans, and they can utilise a wide range of organic substrates. The euphausiid Meganyctiphanes norvegica for example is mainly carnivorous, but ...
Methods for studying root colonization by introduced beneficial
... antagonism and/or to induced resistance of the host plant [25, 108]. Microbial antagonism results from the suppression of saprophytic growth of plant pathogens mediated by antibiotics and siderophores. The concentration of these metabolites in the rhizosphere is expected to be related to the density ...
... antagonism and/or to induced resistance of the host plant [25, 108]. Microbial antagonism results from the suppression of saprophytic growth of plant pathogens mediated by antibiotics and siderophores. The concentration of these metabolites in the rhizosphere is expected to be related to the density ...
Optimal Staining and Sample Storage Time for Direct Microscopic
... To study CTC optimal staining times, the flasks with soil suspensions and CTC were shaken on a rotary shaker for 1, 2, 3, 4, 6.5, 11.5, 16, or 24 h at 160 rpm before microscope slides were prepared. For DAPI staining, cells were stained for 1, 3, 5, 10, 20, 40, 95, or 160 min before slide preparatio ...
... To study CTC optimal staining times, the flasks with soil suspensions and CTC were shaken on a rotary shaker for 1, 2, 3, 4, 6.5, 11.5, 16, or 24 h at 160 rpm before microscope slides were prepared. For DAPI staining, cells were stained for 1, 3, 5, 10, 20, 40, 95, or 160 min before slide preparatio ...
bacterial investigations lab
... These include saprobes, decomposers that absorb nutrients from dead organisms, and parasites, which absorb nutrients from the body fluids of living hosts. Some of these organisms (such as Lactobacillus) have very exacting nutritional requirements, while others (E. coli) are less specific in their re ...
... These include saprobes, decomposers that absorb nutrients from dead organisms, and parasites, which absorb nutrients from the body fluids of living hosts. Some of these organisms (such as Lactobacillus) have very exacting nutritional requirements, while others (E. coli) are less specific in their re ...
Potent and wide range of activity vs Gram +ve and Gram
... another through the enzymatic action of a penicillin-binding protein (PBP). In the presence of a β-lactam antibiotic, this process is disrupted. The β-lactam antibiotic binds the PBP and prevents it from cross-linking the glycine bridge to the peptide side chain, thus blocking incorporation of the d ...
... another through the enzymatic action of a penicillin-binding protein (PBP). In the presence of a β-lactam antibiotic, this process is disrupted. The β-lactam antibiotic binds the PBP and prevents it from cross-linking the glycine bridge to the peptide side chain, thus blocking incorporation of the d ...
Biofilm
![](https://commons.wikimedia.org/wiki/Special:FilePath/Staphylococcus_aureus_biofilm_01.jpg?width=300)
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.