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Minimal salt agar that contains detergent as a carbon source is selective or differential?
Minimal salts agar is selective and differential. It grows gram positive bacteria and turns different color depending on what the specimen is.
Biochemical test used in identification of salmonella typhi?
imvic test helps in identi fication of salmonello typhi and a specific agar named salmonella shigella agar is used for culturing these species
Which gram positive bacteria grows on macconkey and EMB?
Gram + bacteria do NOT grow on EMB agar, EMB agar inhibits their growth, and is selective for Gram -
Is a blood agar selective or differential?
Blood agar is a bacterial growth medium which contains 5% sheep's blood. It is considered to be differential but not selective, because it is an enriched medium that provides a rich nutrient environment for many types of bacteria, while a selective medium supports the growth of certain types of bacteria but inhibits other types. Blood agar is considered differential because it is used to distinguish pathogenic bacteria based on the effect of bacterial enzymes known as hemolysins which lyse red blood cells. Blood agar is mainly used clinically to detect the presence of Streptococcus pyogenes, the human pathogen which causes "strep throat". Blood agar can be made selective by the addition of other ingredients.
What reaction does the enzyme involved in Mannitol-salt agar test mediate?
Mannitol salt agar is selective for gram positive bacteria, and differential for mannitol fermenters. Phenol red is the indicator containing the enzyme mannitol.
List selective media for stool culture?
Salmonella-Shigella (SS) agar. XLD agar. Hekton enteric agar.
What is the colour of klebsiella on salmonella-shigella agar?
Its color is red.
Is a tsa agar selective or differential?
its a selective media
Minimal salt agar that contains detergent as a carbon source is selective or differential?
Minimal salts agar is selective and differential. It grows gram positive bacteria and turns different color depending on what the specimen is.
Biochemical test used in identification of salmonella typhi?
imvic test helps in identi fication of salmonello typhi and a specific agar named salmonella shigella agar is used for culturing these species
Is Mannitol salt agar a selective or a differential medium?
Both
Which bacteria gives dark puple colour on EMB agar medium?
Escherichia coli-Salmonella-Shigella-Enterobacter
How does samonella and shigella appear on S.S agar?
Shigella and the majority of salmonellae Clear, colorless, transparent Salmonella enteriditis ATCC 13076 Colorless with black center Salmonella typhi ATCC 6539 Colorless with black center Salmonella typhimurium ATCC 14028 Colorless with black center
Why can mannitol salt agar and EMB agar be described as both selective and differential media?
it is selective because only a salt tolerant can grow. 7.5 nacl it has diffrential properties also. if mannitol formentors turns yellow staphlococus aureus; but if it has no change then its a nonpathogenic staphlococci (s. edermis)
Is Salmonella-Shigella Agar selective or differential?
Blood agar is a differential media since you can differentiate between different organisms based on the colony appearance. In a blood agar you are looking for hemolysis.
Can serratia marcescens grow in mannitol salt agar?
No it doesn't because it doesn't ferment mannitol. P. mirabilis can actually grow on a MAC agar, but it is colorless. I actually had this lab in Micro260 today.An MSA agar has 7% high salt concentration and provides growth for S. aureus bacteria turning it yellow/gold. An MSA agar is selective for osmotolerant bacteria meaning for bacteria that can grow in different salt concentrations, and it's differential because it can ferment mannitol.
What is blood agar tellurite medium?
It is a SELECTIVE DIFFERENTIAL media used for the groth of Corynebacterium diphtheria.
