Navigation Links
K-State research looks at pathogenic attacks on host plants
Date:12/17/2010

MANHATTAN, KAN. -- 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.

White and Antony are in the midst of a three-year, $3-million National Science Foundation grant, and have also been funded in their research by the U.S. Department of Agriculture's National Research Initiative program through the Cooperative State Research, Education and Extension Service.


'/>"/>

Contact: Frank White
fwhite@k-state.edu
785-532-1362
Kansas State University
Source:Eurekalert

Related biology news :

1. K-state researchers explore physiological effects of space travel with NASA grant
2. K-State professors cancer research gets boost from National Institutes of Health
3. K-State research team investigates mutated genes role in breast cancer
4. K-State researchers find gene-silencing nanoparticles may put end to pesky summer pest
5. NIH grants K-State researcher nearly $1.5 million to study antibiotic-resistant bacteria
6. K-State professor using NSF award to study the impact of nitrogen deposition on global change
7. K-State scientist to receive $1 million CAREER award
8. K-State plant pathology professor awarded international professorship for Latin America
9. K-State program will give young professionals skills to protect water resources
10. Ph.D. student in K-State plant pathology selected for international fellowship
11. K-State receives more than $780,000 to fund graduate students studying ecology, evolution, genomics
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... April 11, 2017 No two people ... at the New York University Tandon School of ... have found that partial similarities between prints are ... in mobile phones and other electronic devices can ... The vulnerability lies in the fact that fingerprint-based ...
(Date:4/5/2017)... April 5, 2017  The Allen Institute for Cell ... Explorer: a one-of-a-kind portal and dynamic digital window into ... data, the first application of deep learning to create ... cell lines and a growing suite of powerful tools. ... these and future publicly available resources created and shared ...
(Date:4/4/2017)... April 4, 2017   EyeLock LLC , a ... the United States Patent and Trademark Office (USPTO) has ... the linking of an iris image with a face ... represents the company,s 45 th issued patent. ... very timely given the multi-modal biometric capabilities that have ...
Breaking Biology News(10 mins):
(Date:6/20/2017)... , ... June 20, 2017 , ... ... Robbie, PhD, a well-versed leader with extensive assay development and biomarker expertise, as ... Biomedical is a Boston CRO specializing in bio-analytical assay development and sample testing ...
(Date:6/19/2017)... ... 2017 , ... As Vice President, Product Services, Mr. Guinter ... support, and client process and SOP development. , Mr. Guinter brings a wealth ... for service providers and top-tier pharmaceuticals, and as an independent consultant supported a ...
(Date:6/19/2017)... Iowa (PRWEB) , ... June 19, 2017 , ... A ... interplay among its cells and tissues by delivering pollen and nectar containing nutrients necessary ... the means to stay healthy. , Many recent indicators point to a decline in ...
(Date:6/16/2017)... (PRWEB) , ... June 16, 2017 , ... CTNext ... Entrepreneur Innovation Awards (EIA), held at The LOFT at Chelsea Piers in Stamford. , ... ideas to a panel of judges for an opportunity to secure $10,000 awards to ...
Breaking Biology Technology: