Verna-Latin-The spring season. A great name for the dog that you adopt in the spring time. Vespera-Latin-The evening star. This girl dog is at her best in the evening. Virginia-Latin-A lady who is pure and virginal.
Mannitol Salt Agar (MSA) is a selective and differential medium. The high concentration of salt (7.5%) selects for members of the genus Staphylococcus, since they can tolerate high saline levels.
Mannitol salt agar or MSA is a commonly used selective and differential growth medium in microbiology.It encourages the growth of a group of certain bacteria while inhibiting the growth of others. This medium is important in medical laboratories by distinguishing pathogenic microbes in a short period of time.taphylococcus aureus produce yellow colonies with yellow zones, whereas other Staphylococci produce small pink or red colonies with no colour change to the medium. If an organism can ferment mannitol, an acidic byproduct is formed that will cause the phenol red in the agar to turn yellow.