bacterial eye pathogens - UAB School of Optometry
... Ô USE TOPICALS NOT USED SYSTEMICALLY Systemic use creates resistant strains ...
... Ô USE TOPICALS NOT USED SYSTEMICALLY Systemic use creates resistant strains ...
Supportive Selective and Differential Media
... growth of more fastidious (picky) bacteria. Red blood cells are an excellent source of iron and amino acids as well as required bacterial growth factors such as NAD(factor V) and hemin(factor X). In Chocolate agar, a type of supportive medium, the RBCs have been lysed (broken open) to make their con ...
... growth of more fastidious (picky) bacteria. Red blood cells are an excellent source of iron and amino acids as well as required bacterial growth factors such as NAD(factor V) and hemin(factor X). In Chocolate agar, a type of supportive medium, the RBCs have been lysed (broken open) to make their con ...
bacteria: the good, the bad and the ugly
... on in bacteriological research, scientists noticed that the two different groups of bacteria responded differently to the stains they used in microscope work. One group of bacteria absorbed the stain and were thus called Gram positive. The other type of bacteria didn’t, and were called Gram negativ ...
... on in bacteriological research, scientists noticed that the two different groups of bacteria responded differently to the stains they used in microscope work. One group of bacteria absorbed the stain and were thus called Gram positive. The other type of bacteria didn’t, and were called Gram negativ ...
V. fischeri is a rod-shaped, Gram
... V. fischeri is a rod-shaped, Gram-negative bacterium that bioluminesces because of a mechanism called quorum sensing, which is dependent on its population. Quorum sensing bacteria release signal molecules called autoinducers, and when there are enough of them in a bacterial community, receptor prote ...
... V. fischeri is a rod-shaped, Gram-negative bacterium that bioluminesces because of a mechanism called quorum sensing, which is dependent on its population. Quorum sensing bacteria release signal molecules called autoinducers, and when there are enough of them in a bacterial community, receptor prote ...
Simple Stains and Gram Stains
... SIMPLE AND DIFFERENTIAL STAINING OF BACTERIA In previous exercises you have observed live bacteria via compound brightfield microscopy. This approach allows one to observe bacteria in terms of their motility and provides some insight on the organism’s overall morphology. However, since the bacterial ...
... SIMPLE AND DIFFERENTIAL STAINING OF BACTERIA In previous exercises you have observed live bacteria via compound brightfield microscopy. This approach allows one to observe bacteria in terms of their motility and provides some insight on the organism’s overall morphology. However, since the bacterial ...
BBiomedSc (Hons) Project Outline 2016
... 2. Multiple MTAN inhibitors may have increased effects 3. Antimicrobial agents may increase the activity of MTAN inhibitors. Preliminary data. Several MTAN inhibitors have been screened using a single strain of S. epidermidis and S. aureus. The results from the most effective one are shown. There wa ...
... 2. Multiple MTAN inhibitors may have increased effects 3. Antimicrobial agents may increase the activity of MTAN inhibitors. Preliminary data. Several MTAN inhibitors have been screened using a single strain of S. epidermidis and S. aureus. The results from the most effective one are shown. There wa ...
Microbiology Questions
... typical human cell (e.g. cell from cheek lining). 8. What are antibiotics? 9. Describe how some bacteria respond in order to survive when environmental conditions become unfavourable. 10. What is meant when a bacterium is described as being pathogenic? 11. To which kingdom do bacteria belong? ...
... typical human cell (e.g. cell from cheek lining). 8. What are antibiotics? 9. Describe how some bacteria respond in order to survive when environmental conditions become unfavourable. 10. What is meant when a bacterium is described as being pathogenic? 11. To which kingdom do bacteria belong? ...
ADAPTATIONS IN BACTERIA
... conditions. An endospore is a tiny structure that contains the DNA and small amount of the bacterium’s cytoplasm. It is encased by a tough outer covering that resists drying out, temperature extremes, and harsh chemicals. The bacterium rests and does not reproduce while in the form of an endospore. ...
... conditions. An endospore is a tiny structure that contains the DNA and small amount of the bacterium’s cytoplasm. It is encased by a tough outer covering that resists drying out, temperature extremes, and harsh chemicals. The bacterium rests and does not reproduce while in the form of an endospore. ...
Anaerobes
... Lactobacillus • Facultative or strict anaerobes • Colonize GI and GU tract – Vagina heavily colonized (105/ml) by Lactobacillus ...
... Lactobacillus • Facultative or strict anaerobes • Colonize GI and GU tract – Vagina heavily colonized (105/ml) by Lactobacillus ...
Will We Ever Have “God`s Probiotic”?
... is one of the most densely populated Finally, it’s captivating that gut colitis. But what is interesting is this ecosystems on the planet. And it’s microbial communities show such microbiota could be transferred to charged with the amazingly difficult a remarkable degree of variation healthy, wild t ...
... is one of the most densely populated Finally, it’s captivating that gut colitis. But what is interesting is this ecosystems on the planet. And it’s microbial communities show such microbiota could be transferred to charged with the amazingly difficult a remarkable degree of variation healthy, wild t ...
BIOCHEMICAL TESTS
... Gelatin is a protein derived from collagen, a connective tissue found in vertebrates Gelatin is too large to enter the bacterial cell; however its amino acids my be used as an energy source or built back up into bacterial protein ...
... Gelatin is a protein derived from collagen, a connective tissue found in vertebrates Gelatin is too large to enter the bacterial cell; however its amino acids my be used as an energy source or built back up into bacterial protein ...
sylabus - Medical University of Lodz
... bacteria, preparation of pure cultures. Sterilization and disinfection techniques. The indigenous human bacterial flora, bacteria in environment. General microbiology – Morphology of bacterial cell, staining procedures for bacteria. General microbiology – Identification and classification of bacteri ...
... bacteria, preparation of pure cultures. Sterilization and disinfection techniques. The indigenous human bacterial flora, bacteria in environment. General microbiology – Morphology of bacterial cell, staining procedures for bacteria. General microbiology – Identification and classification of bacteri ...
Growth Phases - Nutley Public Schools
... • Commensalism – one population receives benefit from the relationship while the other is not helped or harmed • Bacteria that inhabit human skin: – Bacteria has a place to live and food – We are not helped or harmed in any way ...
... • Commensalism – one population receives benefit from the relationship while the other is not helped or harmed • Bacteria that inhabit human skin: – Bacteria has a place to live and food – We are not helped or harmed in any way ...
The Size, Shape, and Arrangement of Bacterial Cells
... The Size, Shape, and Arrangement of Bacterial Cells Bacteria are unicellular and most multiply by binary fission. Bacterial species are differentiated by morphology, chemical Composition, nutritional requirements, biochemical activities, and source of energy. Most bacteria are 0.2 um in diameter and ...
... The Size, Shape, and Arrangement of Bacterial Cells Bacteria are unicellular and most multiply by binary fission. Bacterial species are differentiated by morphology, chemical Composition, nutritional requirements, biochemical activities, and source of energy. Most bacteria are 0.2 um in diameter and ...
Gram Stain Lab Prokaryotic Cell Wall Differentiation
... The most important determining factor in the procedure is that bacteria differ in their rate of decolorization. Those that decolorize easily are referred to as gram-negative and appear pink, whereas those that retain the primary stain are called gram-positive and appear dark blue/purple to almost bl ...
... The most important determining factor in the procedure is that bacteria differ in their rate of decolorization. Those that decolorize easily are referred to as gram-negative and appear pink, whereas those that retain the primary stain are called gram-positive and appear dark blue/purple to almost bl ...
Lab 4
... chemicals added to it that allow certain bacteria to grow, but inhibit the growth of others. Differential media does not prevent bacteria from growing, but rather contain chemicals that cause a change in the appearance of certain bacteria. Media can be selective, differential, or both. The three typ ...
... chemicals added to it that allow certain bacteria to grow, but inhibit the growth of others. Differential media does not prevent bacteria from growing, but rather contain chemicals that cause a change in the appearance of certain bacteria. Media can be selective, differential, or both. The three typ ...
The Gram`s positive Bacilli
... -Diarrhea, and pseudomembranous colitis due to long-term antibiotic therapy. ...
... -Diarrhea, and pseudomembranous colitis due to long-term antibiotic therapy. ...
Body Systems
... • Asthma, a respiratory disorder that can cause breathing problems, frequently involves an allergic response by the lungs. If the lungs are oversensitive to certain allergens (like pollen, molds, animal dander, or dust mites), it can trigger breathing tubes in the lungs to become narrowed, leading t ...
... • Asthma, a respiratory disorder that can cause breathing problems, frequently involves an allergic response by the lungs. If the lungs are oversensitive to certain allergens (like pollen, molds, animal dander, or dust mites), it can trigger breathing tubes in the lungs to become narrowed, leading t ...
Introduction and history of microbiology
... Principal of immunization demonstrated by Pasteur Learn from failure • In 1880, Pasteur isolated the bacterium responsible for chicken cholera and grew it in pure culture. • But on the day of his public demonstration he failed to repeat his experimental result. ...
... Principal of immunization demonstrated by Pasteur Learn from failure • In 1880, Pasteur isolated the bacterium responsible for chicken cholera and grew it in pure culture. • But on the day of his public demonstration he failed to repeat his experimental result. ...
O A RIGINAL RTICLE
... for the inhibition against the growth of the Gramnegative and Gram-positive bacteria especially, S. aureus (67mg/ml), P.aeruginosa (74,2mg/ml) andK. Pneumonae (83,6mg/ml) (Table 1). Also, the bacteriocidal activity (MBC) its extent varied, and depending on the extract compounds as shouwn in Table 1. ...
... for the inhibition against the growth of the Gramnegative and Gram-positive bacteria especially, S. aureus (67mg/ml), P.aeruginosa (74,2mg/ml) andK. Pneumonae (83,6mg/ml) (Table 1). Also, the bacteriocidal activity (MBC) its extent varied, and depending on the extract compounds as shouwn in Table 1. ...
Bacterial Identification Tests
... • γ = no lysing • Clockwise starting from the left: Staphylococcus aureus β, Staphylococcus epidermidis γ , teeth α ...
... • γ = no lysing • Clockwise starting from the left: Staphylococcus aureus β, Staphylococcus epidermidis γ , teeth α ...
Legionella
... bacteria and with a means for dissemination to humans. Person-to-person transmission has never been demonstrated, and Legionella is not a member of the bacterial flora of humans. Infection begins in the lower respiratory tract. Alveolar macrophages, which are the primary defense against bacterial in ...
... bacteria and with a means for dissemination to humans. Person-to-person transmission has never been demonstrated, and Legionella is not a member of the bacterial flora of humans. Infection begins in the lower respiratory tract. Alveolar macrophages, which are the primary defense against bacterial in ...
Viruses and Bacteria
... to make their own food produce oxygen, just like plants. – Since bacteria existed long before plants, and the atmosphere used to lack oxygen, scientists believe oxygen was first added to Earth’s atmosphere by these autotrophic bacteria. ...
... to make their own food produce oxygen, just like plants. – Since bacteria existed long before plants, and the atmosphere used to lack oxygen, scientists believe oxygen was first added to Earth’s atmosphere by these autotrophic bacteria. ...
Endocrine regulation of skin blanching in red porgy, Pagrus
... in white-background-adapted fish while T4 concentrations 30.2 (4.1) ng ml–1 in black- and 24.7 (2.7) ng ml–1 in white-background-adapted fish. Low mean cortisol concentrations were found in both groups (black background: 7.95 ± 2.6 ng ml–1; white background: 5.77 ± 1.4 ng ml–1). Plasma melatonin con ...
... in white-background-adapted fish while T4 concentrations 30.2 (4.1) ng ml–1 in black- and 24.7 (2.7) ng ml–1 in white-background-adapted fish. Low mean cortisol concentrations were found in both groups (black background: 7.95 ± 2.6 ng ml–1; white background: 5.77 ± 1.4 ng ml–1). Plasma melatonin con ...
I. Introduction to class
... Genus Staphylococcus: Tend to form grape-like clusters. Grow well under high osmotic pressure and low moisture. Very common infections, because almost always found on skin and in nasal mucous membranes. ...
... Genus Staphylococcus: Tend to form grape-like clusters. Grow well under high osmotic pressure and low moisture. Very common infections, because almost always found on skin and in nasal mucous membranes. ...
Skin flora
The skin flora, more properly referred to as the skin microbiota, are the microorganisms which reside on the skin. Most research has been upon those that reside upon the 2 square metres of human skin, cf. the human microbiome. The skin microbiome refer to their genomes.Many of them are bacteria of which there are around 1000 species upon human skin from 19 phyla. The total number of bacteria on an average human has been estimated at 1012 (1 trillion). Most are found in the superficial layers of the epidermis and the upper parts of hair follicles.Skin flora is usually non-pathogenic, and either commensal (are not harmful to their host) or mutualistic (offer a benefit). The benefits bacteria can offer include preventing transient pathogenic organisms from colonizing the skin surface, either by competing for nutrients, secreting chemicals against them, or stimulating the skin's immune system. However, resident microbes can cause skin diseases and enter the blood system creating life-threatening diseases particularly in immunosuppressed people.A major nonhuman skin flora is Batrachochytrium dendrobatidis, a chytrid and non-hyphal zoosporic fungus that causes chytridiomycosis, an infectious disease thought to be responsible for the decline in amphibian populations.