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News From the Field
Newly Identified Enzymes Help Plants Sense Elevated CO2 and Could Lead to Water-wise Crops

December 13, 2009

guard cells Plants take in the carbon dioxide (CO2) they need for photosynthesis through microscopic breathing pores in the surface of leaves. But for each molecule of the gas gained, they lose hundreds of water molecules through these same openings. The pores can tighten to save water when CO2 is abundant, but scientists didn't know how this process worked. Now biologists have identified protein sensors that react with CO2 to close the pores. Full Story

Source
University of California, San Diego

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2014, its budget is $7.2 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives about 50,000 competitive requests for funding, and makes about 11,500 new funding awards. NSF also awards about $593 million in professional and service contracts yearly.

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