A team of Japanese scientists has found a species of bacteria that eats the type of plastic found in most disposable water bottles. The discovery, published ... in the journal Science, could lead to new methods to manage the more than 50 million tons of this particular type of plastic produced globally each year. The plastic found in water bottles is known as polyethylene terephalate, or PET. It is also found in polyester clothing, frozen-dinner trays and blister packaging. Part of the appeal of PET is that it is lightweight, colorless and strong. However, it has also been notoriously resistant to being broken down by microbes - what experts call "biodegradation." Previous studies had found a few species of fungi can grow on PET, but until now, no one had found any microbes that can eat it. To find the plastic-eating bacterium described in the study, the Japanese research team ... collected 250 PET-contaminated samples including sediment, soil and wastewater from a plastic bottle recycling site. Next they screened the microbes living on the samples to see whether any of them were eating the PET and using it to grow. They eventually discovered [a] bacteria species [that] could break down a thin film of PET over the course of six weeks. The research could make it easier to identify other microbes that might have similar PET-degrading capabilities.