In my result i isolate bacillus sp on mannitol salt agar but i expect that this media has deoration or expaired
Yes, Enterobacter cloacae typically cannot grow on mannitol salt agar because it does not ferment mannitol. Mannitol salt agar is selective for salt-tolerant Staphylococci species that can ferment mannitol, producing acid and turning the agar yellow.
Yellow, which means bacteria is able to produce acids from mannitol fermentation
Staphylococcus aureus is a bacterium that appears white on mannitol salt agar due to its ability to ferment mannitol, which produces acid. This acid production causes a change in the pH indicator in the agar, turning it from red to yellow for most staphylococci, but white for S. aureus.
If Bacillus subtilis is inoculated into litmus milk, it will likely grow and metabolize lactose, forming acid as a byproduct. This metabolism will cause the litmus milk to turn pink or purple as the pH decreases due to the production of acid. The milk may also show coagulation due to acid production.
Mannitol Salts agar is a selective and differential media used to identify Staphylococcus sp. The media is selective due to the high salt concentration which prevents all but halophiles from growing. The media is differential due to the presence of mannitol and the indicator Phenol Red. Staphylococcus aureus can ferment mannitol and produce lactic acid as a result. The media contains an indicator called Phenol Red which turns yellow in low pH environments. This results in a yellow halo around the S.aureus colonies. Staphylococcus epidermidis cannot ferment mannitol and so the colour of the media around these colonies does not change. Certain vibro species and other halophiles may grow on these plates some of these appear pink and some may be able to ferment mannitol leading to false positives. S.epidermidis is a normal commensal organism and grows on the skin. S.aureus is a potential pathogen, antibiotic strains exist and can be hospital accquired infections. Search for "MRSA" for more information.
No, Bacillus subtilis is not an acid-fast bacterium.
Yes it is. Bacillus subtilis produces endospores?
Bacillus subtilis is a Gram-positive bacterium and does not typically show acid-fast staining results. This means that it does not retain the stain when subjected to the acid-fast staining procedure commonly used to detect mycobacteria.
Yes, Enterobacter cloacae typically cannot grow on mannitol salt agar because it does not ferment mannitol. Mannitol salt agar is selective for salt-tolerant Staphylococci species that can ferment mannitol, producing acid and turning the agar yellow.
Yellow, which means bacteria is able to produce acids from mannitol fermentation
Staphylococcus aureus is a bacterium that appears white on mannitol salt agar due to its ability to ferment mannitol, which produces acid. This acid production causes a change in the pH indicator in the agar, turning it from red to yellow for most staphylococci, but white for S. aureus.
Bacteria which live on the walls of the intestine help in the production of vitamins. Bacillus valgatus is a bacteria is capable of producing thiamine from lactic acid. Bacillus subtilis and escherichia coli are capable of producing riboflavin and pyridoxine.
Bacteria which live on the walls of the intestine help in the production of vitamins. Bacillus valgatus is a bacteria is capable of producing thiamine from lactic acid. Bacillus subtilis and escherichia coli are capable of producing riboflavin and pyridoxine.
The are gram negative bacillus shaped bacteria. They are facultative anaerobic bacteria. They ferment the glucose to produce acid and gas. They ferment the sulfur containing amino acids to produce H2S gas. They do not ferment the lactose.
If Bacillus subtilis is inoculated into litmus milk, it will likely grow and metabolize lactose, forming acid as a byproduct. This metabolism will cause the litmus milk to turn pink or purple as the pH decreases due to the production of acid. The milk may also show coagulation due to acid production.
B. subtilis is indeed a Gram positive rod.However, there is confusion as to whether it is an obligate aerobe or a facultative anaerobe. Although classed as an obligate aerobe, it has been shown to grow under strict anaerobic conditions.
Yes, Bacillus megaterium is capable of fermenting glucose through the process of glycolysis to produce ATP and other metabolic byproducts like organic acids, alcohol, and gases.