Instead he tinkered with the bacterium in a more classical way and coaxed it to accept plasmids (rings of DNA) from other strains with the desired properties.

• 查克拉巴蒂用的是较传统的方法，诱导菌株接受其他具有适合特质的菌种的质体（plasmid，环状的DNA），来改造菌株。