What percentage of microbes in our biosphere can be cultured in the laboratory?

Question

Quizplus · Accepted Answer

Only a small fraction of microbes in our biosphere can be cultured in the laboratory, estimated to be less than 1%. This is due to the fact that many microbes have specific growth requirements that cannot be easily replicated in laboratory conditions, or they may have symbiotic relationships with other organisms that are difficult to mimic.

What Percentage of Microbes in Our Biosphere Can Be Cultured