Cultured wood could be a more efficient and environmentally friendly alternative to logging, and fully developing the process could revolutionise the lumber industry
Spotted: A group of researchers at MIT university in the USA are pioneering growing wood from plant cells. The process is similar to how scientists are growing meat from animal cells. First, live cells are extracted from the leaves of a zinnia plant and placed into a nutrient solution that encourages them to grow and multiply. Then the cells are moved to a gel that is laced with two hormones. By adjusting the levels of those hormones, the researchers could control the production of lignin in the cells, which is what gives wood its characteristic firmness.
When the MIT researchers investigated the cells under a microscope, they observed that they had used the gel as scaffolding, forming rigid, wood-like structures. Not only does this demonstrate the possibility of growing wood in a lab, but it shows the potential to mold it in different shapes, based on the scaffolding. “Plant cells are similar to stem cells in the sense that they can become anything if they are induced to,” researcher Luis Fernando Velásquez-García said.
To make a real impact, the next step is to figure out both how the process can be scaled up to produce wood that’s of comparable quality to that of trees, and is economical to produce.
“The way we get these materials hasn’t changed in centuries and is very inefficient,” Velásquez-García told MIT News. “This is a real chance to bypass all that inefficiency.
We are also yet to see whether the process for creating their lab-grown wood is actually better for the environment than logging.
Written By: Katrina Lane