24 Oct 2011:
Study Offers New Insights
Into Planting Flood-Tolerant Crops
Scientists say they have identified the molecular mechanism that enables plants to detect and cope with low oxygen levels
that occur when roots or shoots are inundated with water, a development they say
University of Nottingham
Water added to the Arabidopsis plant
could help farmers breed high-yield, flood-tolerant crops as flooding becomes more common globally. In a study published in Nature
, scientists from the University of California, Riverside and the University of Nottingham in the UK describe the subtle changes they observed in the metabolism of plants after they were fully or partially submerged. Specifically, in tests on Arabidopsis
, a small flowering plant species, they identified proteins that are actually unstable when oxygen levels are normal, but become more stable when oxygen levels drop, such as during exposure to increased amounts of water; this trait enhances the plants’ ability to survive in flood conditions. Researchers say that in years to come scientists might be able to manipulate this trait, called the protein turnover mechanism, to develop crops capable of surviving flood conditions.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Accepting entries through June 15, 2015.
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
A three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.
is now available for mobile devices at e360.yale.edu/mobile
The Warriors of Qiugang
, a Yale Environment 360
video, chronicles a Chinese village’s fight against a polluting chemical plant. It was nominated for a 2011 Academy Award for Best Documentary Short.
Watch the video.
Top Image: aerial view of Iceland
. © Google & TerraMetrics.
, winner of the Yale Environment 360 Video Contest, documents the work of African researchers monitoring wildlife in Uganda's remote Bwindi Impenetrable National Park. Watch the video.