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Genetic engineering creates rice strain that makes less methane

22 July 2015

Âé¶¹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Head down in embarrassment (Image: Pascal Deloche/Godong / Panos)

IT’S food for climate conscious consumers. A strain of rice has been genetically engineered to produce less methane.

Rice agriculture is responsible for between 7 and 17 per cent of human-induced methane emissions. Sugars produced during photosynthesis leak into the soil via the roots, where they are used up by methane-producing soil microorganisms.

from the Swedish University of Agricultural Sciences in Uppsala and his colleagues have now engineered rice that stores more sugar in its grains and stems. In a three-year-long trial, the rice grew well and led to drops in paddy field methane emissions (Nature, ).

of Kansas State University in Manhattan.

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