Scientists take a step closer to growing wood in a lab

While lab-grown meat shows promise for sparing animals from slaughter, wood still comes entirely from trees that are cut down. That may not always be the case, though, as scientists are now working on growing it in a lab, too.
Led by PhD student Ashley Beckwith, researchers at MIT started by extracting live cells from the leaves of a zinnia plant. These were placed in a liquid growth medium, where they started reproducing. The resulting batch of cells was then transferred to a three-dimensional gel matrix, where they continued to proliferate.
The addition of the plant hormones auxin and cytoki