Transplanted corn gene protects rice

October 18, 2005

Kansas State University scientists say they've demonstrated resistance to bacterial streak disease in maize can be transferred to rice.

Researchers in Manhattan, Kan., transferred a disease resistance gene from maize to rice and found it controls the disease, which is prevalent in Asia.

Scot Hulbert and colleagues identified and isolated a gene from maize, Rxo1, which recognizes the bacterium that causes bacterial streak in rice, a disease in which water-soaked lesions spread throughout the leaves. That gene also controls resistance to an unrelated bacterium that produces stripe disease in sorghum and maize.

The researchers transferred Rxo1 to rice and found 36 of the 82 transgenic rice lines displayed strong resistance when infected with the bacterium, characterized by a limited spreading of the lesions. All 36 resistant rice plants contained the Rxo1 gene when sequenced.

The scientists say that ability to transfer resistance between two distantly related plants may open the possibility for using "non-host" resistance genes, such as Rxo1, to control diseases in a variety of crops.

The research appears in the online edition of the Proceedings of the National Academy of Sciences.

Copyright 2005 by United Press International

Explore further: How plant sensors detect pathogens

Related Stories

How plant sensors detect pathogens

August 25, 2015

In the mid-20th century, an American scientist named Harold Henry Flor helped explain how certain varieties of plants can fight off some plant killers (pathogens), but not others, with a model called the "gene-for-gene" hypothesis. ...

Unlocking the rice immune system

July 24, 2015

A bacterial signal that when recognized by rice plants enables the plants to resist a devastating blight disease has been identified by a multi-national team of researchers led by scientists with the U.S. Department of Energy ...

Recommended for you

For 2-D boron, it's all about that base

September 2, 2015

Rice University scientists have theoretically determined that the properties of atom-thick sheets of boron depend on where those atoms land.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.