What is the composition of tellurite Blood Agar?
Tellurite Blood Agar Base is used for the selective isolation and cultivation of Corynebacterium species. Vitamino Growth Supplement (FD025) and 1%Potassium Tellurite (FD052). Mix well and pour into sterile Petri plates.
What is Tellurite Agar?
Tellurite Blood Agar is a selective and differential medium for Corynebacterium diphtheriae. It is also a selective medium for the cultivation and isolation of Corynebacterium species. It is applicable for both clinical and non-clinical specimens to recover Corynebacterium species.
What Agar is for Corynebacterium diphtheriae?
C. diphtheriae grows well on blood agar, but tellurite blood agar (Hoyle’s medium) is recommended as this inhibits other respiratory flora and allows the characteristic colonial morphology of the three biotypes (gravis, intermedius and mitis) to develop.
What Agar does Corynebacterium grow on?
Tinsdale agar (TIN) is used for the primary isolation and identification of Corynebacterium diphtheriae. The medium differentiates between C. diphtheriae and diphtheroids found in the upper respiratory tract.
What is the composition of Macconkey Agar?
Contents. It contains bile salts (to inhibit most Gram-positive bacteria), crystal violet dye (which also inhibits certain Gram-positive bacteria), and neutral red dye (which turns pink if the microbes are fermenting lactose).
What is tinsdale Agar?
Tinsdale Agar is used for the primary isolation and identification of Corynebacterium diptheriae. The medium differentiates between C. diphtheriae and the diphtheroids found in the upper respiratory tract. This differentiation was based on the ability of C.
What is the formula for tellurite?
O₃Te²⁻Tellurite / Formula
What is tellurite reduction?
The in vivo tellurite reduction is related to the intracellular concentration of total RSH, in the presence and absence of oxygen. This metabolization of tellurite directly contributes to the resistance of the bacteria to the oxyanion.
Does Corynebacterium grow on MacConkey Agar?
Diagnosis. To diagnose the Corynebacterium species, samples include pus, exudate, affected tissues and urine. The presence of coryneform organisms in smears is diagnostic. Culture on blood agar, selective blood agar and MacConkey agar are also diagnostic, they do not grow on MacConkey.
Is Corynebacterium gram-positive or negative?
Corynebacterium (/kɔːˈraɪnəbækˌtɪəriəm, -ˈrɪn-/) is a genus of bacteria that are Gram-positive and most are aerobic. They are bacilli (rod-shaped), and in some phases of life they are, more specifically, club-shaped, which inspired the genus name (coryneform means “club-shaped”).
Does Corynebacterium diphtheriae grow on MacConkey Agar?
The presence of coryneform organisms in smears is diagnostic. Culture on blood agar, selective blood agar and MacConkey agar are also diagnostic, they do not grow on MacConkey.