multiple species of fungi in an environment can be identified in one sample by extracting and purifying fungal dna in the sample . pcr is then performed followed by cloning the amplifed dna and transforming the dna into bacteria for purposes of growing the organisms . colonies of the growth containing transformed bacteria are then chosen on the basis of coloration . plasmids from the chosen colonies were then purified and the dna is analyzed to identify fungi present in the sample .