Using traditional crossbreeding, researchers have created a new strain of rice that produces much less methane, a potent greenhouse gas, when it is grown in flooded fields
Rice growing is responsible for around 12 per cent of anthropogenic release of methane, a gas that has a warming effect 25 times stronger than that of carbon dioxide.
SUSIBA2 produced less fumarate, a root exudate known to be a key driver of methane emissions, than Nipponbare. But when both strains were treated with oxantel, a chemical that inhibits the breakdown of fumarate by bacteria, the SUSIBA2 strain still produced less methane. This meant there must be another factor causing the difference between the varieties.It turned out that the SUSIBA2 crop was secreting high levels of ethanol, which also seemed to be suppressing methane emissions.
Plants Farming Greenhouse Gas Emissions Methane
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