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Scientists have plants that glow in the dark. They are to plants that can up our lives. The scientists are from the Massachusetts Institute of Technology in the USA. They hope their discovery could to plant lights replacing electric lights. One day, even light that trees could replace street lights. Professor Michael Strano, lead author of the research, that his team wants to create sustainable light sources and the environment. He said: "The vision is to make a plant that will as a desk lamp - a lamp that you don't have to plug in. The light is ultimately by the energy metabolism of the plant itself."

The researchers the idea for their lighting plants from fireflies. They at the substance in fireflies that makes them glow. They created nanoparticles that the substance. They then put the nanoparticles into plant leaves to make them glow. The scientists were able to make plants that for nearly four hours. The research team has the substance on salad leaves, including spinach and watercress. Professor Strano said: "Our target is to one treatment, when the plant is a seedling or a mature plant, and it last for the lifetime of the plant." He plant lights will a part of our life in the future. He said: "We think this is an idea whose time has ."