Photorespiration breakthrough

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Don
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Photorespiration breakthrough

Post: # 69343Post Don
Mon Feb 18, 2019 11:06 am

Photorespiration is the opposite of photosynthesis where carbon dioxide that has been captured from the atmosphere by plants is quickly lost back into the atmosphere instead of being made into sugar. A very few plants are much better than others in this regard, particularly grasses of which corn and sugar cane are two. If other crops such as rice, soybeans, cotton, peanuts, cassava, rice, wheat, barley, oats and rye could be made to reduce or eliminate photorespiration then yields could increase by nearly half again with no additional inputs or labor.

A lot of money and effort has gone into photorespiratory research toward that end with no tangible results - until now.

The Gates Foundation has been funding an international project named 'Realizing Increased Photosynthetic Efficiency' (RIPE) through a lab at the University of Illinois.

https://ripe.illinois.edu/

A team at RIPE has announced that they have selectively modified promotor genes in the leaves of a plant to overproduce one of the proteins involved in recycling CO2 and thus realize a 40% increase in overall photosynthetic efficiency.

http://science.sciencemag.org/content/363/6422/eaat9077

This article gives a more accessible explanation.:

https://ripe.illinois.edu/press/press-r ... -growth-40

It will take a while but eventually we will see similar events play out for horticultural plant such as roses.
What doesn't kill them makes them stronger.

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