Because the potatoes grow inside the hay bale, the bale can be positioned in areas where the soil is unsuitable for gardening or even on top of paved areas. However, water does drain from the bottom of the bale, so choose an area where this is not an issue.
Bacteria have exhibited colistin resistance in the past, but this time it is different: Previous forms of the resistance weakened the microbes, and the resistance genes were located on DNA that was not easily shared among bacteria.
DNA containing that gene is collected from the donor organism that naturally has this gene. Scientists can also make copies of the DNA in a laboratory if they don't have a lot of it. Step 2: Scientists isolate plasmid DNA (a ring of DNA in a bacterial cell) from bacteria.