During incubation of Mueller Hinton plates, bacteria colonies grow and multiply. Additionally, antibiotics diffusing from antibiotic disks create zones of inhibition around disks indicating the susceptibility of the bacteria to those antibiotics.
streptococci like S.mutans grow on this medium.. may be other anaerobic pathogenic streptococci(animals) also grow in this medium . Listeria monocytogenes, a gram positive foodborne pathogen, also grows very well on this medium and may actually show better hemolysis zones than when grown on regular sheep blood agar.
MacConkey agar is designed to grow Gram-negative bacteria and also contains crystal violet dye which inhibits the growth of Gram-positive bacteria. Since S. aureus is Gram-positive it should not grow on MacConkey agar. No. MacConkey agar inhibits MOST of the Gram-positive bacteria. There are some Gram-positive bacteria that can tolerate bile-salt are able to grow in MacConkey agar. Enterococcus and some species of Staphylococcus are able to grow in MacConkey. (lack citation though)
yes
E. coli will not grow on Enterococcus agar, as this medium is selective for Enterococcus species and inhibits the growth of other bacteria. Conversely, Enterococcus can grow on Endo agar, which is designed for the isolation of gram-negative bacteria like E. coli but does not specifically inhibit Enterococcus. However, the growth of Enterococcus on Endo agar may be less pronounced compared to that of E. coli.
It grows in Mueller-Hinton Broth Agar, with 5% CO2, at 25-37 °C
During incubation of Mueller Hinton plates, bacteria colonies grow and multiply. Additionally, antibiotics diffusing from antibiotic disks create zones of inhibition around disks indicating the susceptibility of the bacteria to those antibiotics.
The disruption of red blood cell and release of their haemoglobin. There are several types of haemolytic reactions when bacteria such as streptococci or staphylococcus grow on blood agar.
streptococci like S.mutans grow on this medium.. may be other anaerobic pathogenic streptococci(animals) also grow in this medium . Listeria monocytogenes, a gram positive foodborne pathogen, also grows very well on this medium and may actually show better hemolysis zones than when grown on regular sheep blood agar.
Because this medium is differentially selected to isolate streptococci (E.coli is bacillus). Also because E. coli produces coliform which rarely grows on this medium.
Yes, Haemophilus influenzae can grow on blood agar.
MacConkey agar is designed to grow Gram-negative bacteria and also contains crystal violet dye which inhibits the growth of Gram-positive bacteria. Since S. aureus is Gram-positive it should not grow on MacConkey agar. No. MacConkey agar inhibits MOST of the Gram-positive bacteria. There are some Gram-positive bacteria that can tolerate bile-salt are able to grow in MacConkey agar. Enterococcus and some species of Staphylococcus are able to grow in MacConkey. (lack citation though)
No, Alcaligenes faecalis will not grow on MacConkey agar. MacConkey agar is selective for gram-negative bacteria that ferment lactose. Alcaligenes faecalis is a gram-negative bacteria that does not ferment lactose, so it will not grow on MacConkey agar.
Corynebacterium xerosis typically grows on nutrient agar.
Blood agar is media rich in reb blood cells and the most commonly used type of media is horse blood media. It is useful for the isolation of bacteria such as Streptococci or organisms that would not readily grow on media that lack red blood cells. For the isolation of Streptococci it is also useful in observing alpha and beta haemolysis.
You would expect the organism to grow better on nutrient agar because it is a general-purpose medium that supports the growth of a wide range of organisms. MacConkey agar, on the other hand, contains inhibitors that selectively inhibit the growth of Gram-negative bacteria, so the organism may not grow as well on this medium.
Scientists often grow bacteria on agar plates because agar provides a solid surface for bacteria to thrive on. Agar is composed of nutrients that bacteria need to grow, making it an ideal medium for cultivating and studying bacteria in a controlled environment.