Scientists have known for many years that houseplants benefit people's health. Now scientists have found away to make plants even better for people's health, They (研发) a method called GM to grow plants. GM means changing a plant or an animal by changing its DNA, (包括) adding DNA from another species (物种).
In 1989, research done by NASA found that houseplants could clean the air in a home. However, further research showed plants(事实上) made a very small difference to help much. (自从) then, scientists have been experimenting with the DNA of certain plants to create a plant that will reduce more air pollution.
In 2018, American scientists make a (决定) to use a houseplant called pothos. They put DNA from a rabbit into the plant and were (惊讶的) to find the new DNA made the plant better at reducing pollution.
R, a company called Neoplants added more DNA from two types of bacteria. As a result, pothos was about 30 times better at reducing pollution c with the non-GM plants that NASA tested in 1989.
Many problems remain unsolved, but the scientists at Neoplants say(无论什么) difficulties they meet, they will never give up. They plan to use this technology in other types of houseplants and hope people in the US will be (能够. . . . . . 的) to decorate their homes with pollution-destroying plants by next year.
