The ways in which bacteria resist antibiotics
... produced by microorganisms, with selective antibacterial activity that does not have any strong effects on human cells. Their mechanism of action is either through killing the bacteria (bactericidal effect) or by inhibiting bacterial growth (bacteriostatic effect). With the advent of synthetic antib ...
... produced by microorganisms, with selective antibacterial activity that does not have any strong effects on human cells. Their mechanism of action is either through killing the bacteria (bactericidal effect) or by inhibiting bacterial growth (bacteriostatic effect). With the advent of synthetic antib ...
Selective & differential
... • Also in bottles or tubes as stab (deeps) or slope cultures • NB • The purpose of culturing on a solid medium is principally to isolate discrete colonies of each organism present in the specimen. ...
... • Also in bottles or tubes as stab (deeps) or slope cultures • NB • The purpose of culturing on a solid medium is principally to isolate discrete colonies of each organism present in the specimen. ...
Staphylococcus
... PEPTIDOGLYCAN- half of the cell wall - consist of layers of glycan chains with alternating subunits of N –acetylmuramic acid and N- acetylglucosamine - has endotoxin like activity ...
... PEPTIDOGLYCAN- half of the cell wall - consist of layers of glycan chains with alternating subunits of N –acetylmuramic acid and N- acetylglucosamine - has endotoxin like activity ...
here.
... Bars represent number of new antimicrobial agents approved by the FDA during the period listed. Infectious Diseases Society of America. Bad Bugs, No Drugs. July 2004; Spellberg B et al. Clin Infect Dis. 2004;38:1279-1286; New antimicrobial agents. Antimicrob Agents Chemother. 2006;50:1912 ...
... Bars represent number of new antimicrobial agents approved by the FDA during the period listed. Infectious Diseases Society of America. Bad Bugs, No Drugs. July 2004; Spellberg B et al. Clin Infect Dis. 2004;38:1279-1286; New antimicrobial agents. Antimicrob Agents Chemother. 2006;50:1912 ...
3.1 Bacteria and Viruses
... • Gram-negative bacteria are normal inhabitants inside our large intestines. • We even need them to help digest and absorb our food. • Large numbers of Gram-negative bacteria are excreted in the feces. • If Gram-negative bacteria get on our hands and then onto our food and into our mouths, they get ...
... • Gram-negative bacteria are normal inhabitants inside our large intestines. • We even need them to help digest and absorb our food. • Large numbers of Gram-negative bacteria are excreted in the feces. • If Gram-negative bacteria get on our hands and then onto our food and into our mouths, they get ...
Enrichment, selective and differential culture media
... Basic principle is to control the nutrients and culture conditions in such a way that it suits mainly to a specific species y ...
... Basic principle is to control the nutrients and culture conditions in such a way that it suits mainly to a specific species y ...
PharmacoDynamics
... “Acid-loving” – prefer pH around 2-3.5 Thiobacillus (requires low pH for growth) “Neutral-loving” – prefer pH around 6-8 “Basic-loving” – prefer pH around 8.5-10.5 Neutrophiles (b/c the human body pH is around 7 or neutral) 6.) “Salt-loving” – require some NaCl for growth 7.) The time it takes for a ...
... “Acid-loving” – prefer pH around 2-3.5 Thiobacillus (requires low pH for growth) “Neutral-loving” – prefer pH around 6-8 “Basic-loving” – prefer pH around 8.5-10.5 Neutrophiles (b/c the human body pH is around 7 or neutral) 6.) “Salt-loving” – require some NaCl for growth 7.) The time it takes for a ...
Assessing the Mutagenicities of Common Herbicides Using a Novel
... This project incorporated a reverse mutation assay to quantitatively measure the mutagenicities of the herbicides. The utilized strain, E. coli WP2 uvrA pKM101, has a mutation in the trp operon and thus cannot grow or reproduce. When placed in a petri dish, the bacteria will only form colonies if th ...
... This project incorporated a reverse mutation assay to quantitatively measure the mutagenicities of the herbicides. The utilized strain, E. coli WP2 uvrA pKM101, has a mutation in the trp operon and thus cannot grow or reproduce. When placed in a petri dish, the bacteria will only form colonies if th ...
Mycoplasms
... A. They stain Gram-positive but are genetically similar to Gram-negative bacteria. B. They stain Gram-negative and are genetically similar to Gram-negative bacteria. C. They stain Gram-negative but are genetically similar to Gram-positive bacteria. D. Mycoplasmas are not really bacteria. ...
... A. They stain Gram-positive but are genetically similar to Gram-negative bacteria. B. They stain Gram-negative and are genetically similar to Gram-negative bacteria. C. They stain Gram-negative but are genetically similar to Gram-positive bacteria. D. Mycoplasmas are not really bacteria. ...
ricehusk1104
... AgCenter scientists have discovered a novel use for rice hulls as a biofiltration medium. The high amount of surface area, low carbon content, and unique shape promote the growth of bacteria that degrade pollutants. Since rice hulls are waste materials, they are readily available and affordable for ...
... AgCenter scientists have discovered a novel use for rice hulls as a biofiltration medium. The high amount of surface area, low carbon content, and unique shape promote the growth of bacteria that degrade pollutants. Since rice hulls are waste materials, they are readily available and affordable for ...
KILL SWITCH ENGAGE: INTRACELLULAR PROTEGRIN
... Protegrin-1 functions by imbedding itself into the phospholipid bilayer and disrupting bacterial cell walls by creating pores within the membrane (Lam et al., 2006). Pore formation between the cytoplasm and the extracellular space inhibits the cell’s ability to control ion movement, cytosol makeup, ...
... Protegrin-1 functions by imbedding itself into the phospholipid bilayer and disrupting bacterial cell walls by creating pores within the membrane (Lam et al., 2006). Pore formation between the cytoplasm and the extracellular space inhibits the cell’s ability to control ion movement, cytosol makeup, ...
Antimicrobials acting on ribosome
... Less potent than gentamicin (2-4 times less potent), but has broader spectrum than other aminoglycosides. Resistant to inactivating enzymes so it is used for gentamicin resistant cases. ...
... Less potent than gentamicin (2-4 times less potent), but has broader spectrum than other aminoglycosides. Resistant to inactivating enzymes so it is used for gentamicin resistant cases. ...
pathogenic bacteria isolated from tiger prawn
... 17. Tanasomwang, V., Nakai, T., Nishimura, Y., and Muruga, K., 1998. Vibrio inhibiting marine bacteria ...
... 17. Tanasomwang, V., Nakai, T., Nishimura, Y., and Muruga, K., 1998. Vibrio inhibiting marine bacteria ...
PDF
... elimination of the susceptible bacteria in poultry farmingis initiated when a drug or an antibiotic is applied through feed notably at a dosage that exceeds a therapeutic index. Certain microbes are able to withstand the above concentration. These bacteria will increase their numbers million fold. S ...
... elimination of the susceptible bacteria in poultry farmingis initiated when a drug or an antibiotic is applied through feed notably at a dosage that exceeds a therapeutic index. Certain microbes are able to withstand the above concentration. These bacteria will increase their numbers million fold. S ...
HISTORY OF MICROBIOLOGY
... through the glass and testing it. They experimented with different shapes of clear glass and one of their samples was thick in the middle and thin on the edges. They discovered that if you held one of these “lenses” over an object, the object would look larger. These lenses were not used much until ...
... through the glass and testing it. They experimented with different shapes of clear glass and one of their samples was thick in the middle and thin on the edges. They discovered that if you held one of these “lenses” over an object, the object would look larger. These lenses were not used much until ...
Topic Number Nine-Antibiotics mode of action and mechanisms of
... The ESBLs are mutant forms of TEM-1, TEM-2 and SHV-1 enzymes. The ESBLs often differ from the original enzymes by only one to a few changes in their amino acid sequences. ESBLs are enzymes that mediate resistance to extended-spectrum (third generation) cephalosporins (e.g., ceftazidime, cefotaxi ...
... The ESBLs are mutant forms of TEM-1, TEM-2 and SHV-1 enzymes. The ESBLs often differ from the original enzymes by only one to a few changes in their amino acid sequences. ESBLs are enzymes that mediate resistance to extended-spectrum (third generation) cephalosporins (e.g., ceftazidime, cefotaxi ...
第4章 噬菌体
... phage DNA in this repressed state is called a prophage because it is not a phage but it has the potential to produce phage. In most cases the phage DNA actually integrates into the host chromosome and is replicated along with the host chromosome and passed on to the daughter cells. The cell harborin ...
... phage DNA in this repressed state is called a prophage because it is not a phage but it has the potential to produce phage. In most cases the phage DNA actually integrates into the host chromosome and is replicated along with the host chromosome and passed on to the daughter cells. The cell harborin ...
Will the Growth of the Microorganisms Bacteria and Mold Be
... growth. The lights that caused mold overgrowth were the 15 watt red and the 25 watt yellow. Conclusions/Discussion What I discovered overall was that the microbes are sensitive to the effects of light or light wavelengths. Some light illuminations might cause a more perfect temperature or environmen ...
... growth. The lights that caused mold overgrowth were the 15 watt red and the 25 watt yellow. Conclusions/Discussion What I discovered overall was that the microbes are sensitive to the effects of light or light wavelengths. Some light illuminations might cause a more perfect temperature or environmen ...
QPCR Analysis of Bacterial DNA Extractions
... BV include preterm delivery, 2 an increased risk of pelvic inflammatory disease, 3 and an increased susceptibility to HIV acquisition and transmission. 4 Current treatment, which usually involves metronidazole drug therapy, has not proved sufficient. Even after apparently successful treatment, there ...
... BV include preterm delivery, 2 an increased risk of pelvic inflammatory disease, 3 and an increased susceptibility to HIV acquisition and transmission. 4 Current treatment, which usually involves metronidazole drug therapy, has not proved sufficient. Even after apparently successful treatment, there ...
Microorganisms
... Students may think there were no effective treatments for diseases because they were undiagnosed in the past – but anti-infective agents been used for thousands of years. The Chinese recognized that mouldy soybean curd was effective against skin infections. Scabies was treated with sulfur. Mercury w ...
... Students may think there were no effective treatments for diseases because they were undiagnosed in the past – but anti-infective agents been used for thousands of years. The Chinese recognized that mouldy soybean curd was effective against skin infections. Scabies was treated with sulfur. Mercury w ...
Prokaryotic Cell Features
... The small size of prokaryotic cells affects their physiology, growth rate, and ecology. Due to their small cell size, most prokaryotes have the highest surface area–to–volume ratio of any cells. This characteristic aids in nutrient and waste exchange with the environment. ...
... The small size of prokaryotic cells affects their physiology, growth rate, and ecology. Due to their small cell size, most prokaryotes have the highest surface area–to–volume ratio of any cells. This characteristic aids in nutrient and waste exchange with the environment. ...
Last Name
... 11. Which is the counterstain in the Gram stain procedure? (A) crystal violet (B) methylene blue (C) malachite green (D) safranin (E) Gram’s iodine 12. Which of the following is a true statement about Gram staining? (A) The Gram stain differentiates between the three domains. (B) In a gram-negative ...
... 11. Which is the counterstain in the Gram stain procedure? (A) crystal violet (B) methylene blue (C) malachite green (D) safranin (E) Gram’s iodine 12. Which of the following is a true statement about Gram staining? (A) The Gram stain differentiates between the three domains. (B) In a gram-negative ...
Control of microbial growth
... – In amino acids, proteins – Most bacteria decompose proteins – Some bacteria use NH4+ or NO3 – A few bacteria use N2 in nitrogen fixation ...
... – In amino acids, proteins – Most bacteria decompose proteins – Some bacteria use NH4+ or NO3 – A few bacteria use N2 in nitrogen fixation ...
Document
... • Most common endocommensal in people; has a worldwide distribution and 10-50% of the population can be infected in different parts of the world. ...
... • Most common endocommensal in people; has a worldwide distribution and 10-50% of the population can be infected in different parts of the world. ...