Increasing the efficiency of photosynthesis  MAR 28 2016

Stewart Brand wrote a summary of a seminar given by Jane Langdale about how the efficiency of photosynthesis might be improved for some of the world's plants, particularly rice.

Most plants use what's called C3 photosynthesis to produce sugars and starch, but the process is not very efficient. Some plants, like corn and sugarcane, have evolved the capability to produce sugars and starch using the much more efficient C4 photosynthesis process. So if you could modify rice to use C4 instead of C3, yields would increase dramatically.

Rice is a C3 plant -- which happens to be the staple food for half the world. If it can be converted to C4 photosynthesis, its yield would increase by 50% while using half the water. It would also be drought-resistant and need far less fertilizer.

You can read more about the efforts in developing C4 photosynthesis in Technology Review.

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biology   food   Jane Langdale   science   Stewart Brand

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