Xylose Lysine Deoxycholate (XLD) Agar is a selective and differential medium used to isolate enteric pathogens — especially Salmonella and Shigella — from stool cultures. Let’s decode what you see on the plate 👇 #Salmonella Ferments xylose → turns yellow at first Then decarboxylates lysine → reverts to red Produces H₂S → black centers 👉 Result: Red colonies with black centers #Shigella Doesn’t ferment xylose No H₂S production 👉 Result: Red colonies without black centers #Ecoli (or other colif
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Isolation Salmonella bacteria on XLD agar - Microbiology
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MLT Education Point on Instagram: "匿 Can You Spot the XLD Agar Plate? . . . Challenge your microbiology skills! Which one of these petri dishes shows the XLD (Xylose Lysine Deoxycholate) Agar used for isolating Salmonella and Shigella? . .  Comment your answer below ⬇️ ✅ Like | Share | Follow for more science quizzes! . . . #sciencequiz #lablife #microbiology #biologystudents #xld #educationalpost #sciencechallenge"
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