Featured Research

from universities, journals, and other organizations

Pathogenic attacks on host plants examined

Date:
December 20, 2010
Source:
Kansas State University
Summary:
Researchers focusing on rice genetics are providing a better understanding of how pathogens take over a plant's nutrients. Their research provides insight into ways of reducing crop losses or developing new avenues for medicinal research.

Two Kansas State University researchers focusing on rice genetics are providing a better understanding of how pathogens take over a plant's nutrients.

Their research provides insight into ways of reducing crop losses or developing new avenues for medicinal research.

Frank White, professor of plant pathology, and Ginny Antony, postdoctoral fellow in plant pathology, are co-authors, in partnership with researchers at three other institutions, of an article in a recent issue of the journal Nature. The article, "Sugar transporters for intercellular exchange and nutrition of pathogens," was led by Li-Qing Chen from the department of plant biology in the Carnegie Institution for Science at Stanford University.

The project involves the identification a family of sugar transporters, called SWEETS, which transport glucose between plant cells. These transporters are also important because they are targeted by pathogens trying to obtain plant sugar for nutrition.

"It's remarkable," White said. "These bacteria are able to regulate the plant genes directly by inserting proteins into the plant cells. The proteins take over the transcription of the SWEET gene, and the plant, as a consequence, becomes susceptible to bacterial disease."

White and Antony focused specifically on rice bacterial disease and tried to understand what makes rice susceptible and what makes it resistant to specific pathogens. The K-State researchers discovered three resistance genes in rice that can be mutated in order to build the resistance of the rice against a pathogen. One of these resistance genes -- Xa13 -- is included in the Nature article and was discovered by White's lab in 2006.

"We've identified the genes that bacteria can induce to cause the plant to be susceptible," White said. "We've identified them as critical for disease from a pathogen standpoint. For the plant, these genes are involved in normal development. However, once the pathogen takes control of expression, it makes the plant susceptible."

White and Antony also have an article appearing in the December issue of the journal The Plant Cell. They collaborated with researchers from Iowa State University to investigate a second susceptibility gene and its role in the spread of disease.

White's laboratory has been working on such rice research for 15 years, but started collaborating with the Stanford researchers earlier this year.

"We have been trying to understand what the pathogen wants from the host, how the pathogen gets it, and how the host tries to defend itself," Antony said.

Although the research is important in the field of plant genetics, it has broader applications as well. Because researchers have a better understanding of how to control pathogen food supplies, they can use this research to reduce crop diseases and subsequent losses. The plant research may also apply the findings to humans or animals because both use similar sugar transporter genes to transfer glucose, leading to new possibilities for medicine and diabetes research.


Story Source:

The above story is based on materials provided by Kansas State University. Note: Materials may be edited for content and length.


Cite This Page:

Kansas State University. "Pathogenic attacks on host plants examined." ScienceDaily. ScienceDaily, 20 December 2010. <www.sciencedaily.com/releases/2010/12/101217145701.htm>.
Kansas State University. (2010, December 20). Pathogenic attacks on host plants examined. ScienceDaily. Retrieved August 28, 2014 from www.sciencedaily.com/releases/2010/12/101217145701.htm
Kansas State University. "Pathogenic attacks on host plants examined." ScienceDaily. www.sciencedaily.com/releases/2010/12/101217145701.htm (accessed August 28, 2014).

Share This




More Plants & Animals News

Thursday, August 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Super Healthful Fruits and Vegetables: Which Are Best?

Super Healthful Fruits and Vegetables: Which Are Best?

Ivanhoe (Aug. 27, 2014) We all know that it is important to eat our fruits and vegetables but do you know which ones are the best for you? Video provided by Ivanhoe
Powered by NewsLook.com
Bad Memories Turn Good In Weird Mouse Brain Study

Bad Memories Turn Good In Weird Mouse Brain Study

Newsy (Aug. 27, 2014) MIT researchers were able to change whether bad memories in mice made them anxious by flicking an emotional switch in the brain. Video provided by Newsy
Powered by NewsLook.com
Do Couples Who Smoke Weed Together Stay Together?

Do Couples Who Smoke Weed Together Stay Together?

Newsy (Aug. 27, 2014) A study out of University at Buffalo claims couples who smoke marijuana are less likely to experience intimate partner violence. Video provided by Newsy
Powered by NewsLook.com
Panda Might Have Faked Pregnancy To Get Special Treatment

Panda Might Have Faked Pregnancy To Get Special Treatment

Newsy (Aug. 27, 2014) A panda in China showed pregnancy symptoms that disappeared after two months of observation. One theory: Her pseudopregnancy was a ploy for perks. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins