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Which of the following media is used to isolate phosphate solubilizing bacterial Species?

(a) Pikovskaya’s Agar

(b) Gelatin Agar

(c) Macconkey Agar

(d) LB Agar

The question was asked during an online interview.

This interesting question is from Microbial Recovery of Phosphate topic in division Bioleaching and Biomining for Recovery of Resources of Environmental Biotechnology

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Correct choice is (a) Pikovskaya’s Agar

Easiest explanation: Pikovskaya’s Agar is a very special type agar that is used to isolate phosphate solubilizing bacterial species. The isolates can be isolated on Pikovskaya’s Agar after few hours-days of incubation. Gelatin Agar, Macconkey Agar, LB Agar is not used to isolate phosphate solubilizing bacterial Species.

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