Navigation Links
Researcher discovers pathway plants use to fight back against pathogens
Date:3/31/2008

COLUMBIA, Mo. Plants are not only smart, but they also wage a good fight, according to a University of Missouri biochemist. Previous studies have shown that plants can sense attacks by pathogens and activate their defenses. However, it has not been known what happens between the pathogen attacks and the defense activation, until now. A new MU study revealed a very complex process that explains how plants counter attack pathogens. This discovery could potentially lead to crops with enhanced disease resistance.

There is a chemical warfare between plants and pathogens, said Shuqun Zhang, associate professor of biochemistry in the College of Agriculture, Food and Natural Resources and the College of Medicine. Normally, plants put effort into growth and development. However, when plants sense pathogens, they have to use some of their energy and resources to make secondary metabolites to fight disease. Until now, very little has been known about how this process is regulated.

According to the study, plants first sense the attack of a pathogen, and then activate defense responses by triggering a complex signaling cascade in plants. One of the defense responses is the induction and accumulation of anti-microbial defense chemicals, known as phytoalexins.

In his study, Zhang found the specific signaling path, known as a mitogen-activated protein kinase (MAPK) cascade, in the plants that ends when the defense chemical camalexin is created. Camalexin is essential for resistance to some plant diseases. Zhang used Arabidopsis, a small flowering plant and the first to have its entire genome sequenced, and Botrytis cinera, a fungal pathogen that causes grey mold disease in a number of plants including grapes and strawberries.

By understanding at the molecular and cellular levels how plants protect themselves under adverse environmental conditions, such as pathogen attacks, we could eventually improve the disease resistance of crops, Zhang said.


'/>"/>

Contact: Jennifer Faddis
FaddisJ@missouri.edu
573-882-6217
University of Missouri-Columbia
Source:Eurekalert

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
6. U of MN researchers discover noninvasive diagnostic tool for brain diseases
7. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
8. Researchers discover new strategies for antibiotic resistance
9. Researchers find new taste in fruit flies: carbonated water
10. Binghamton University researchers investigate evolving malaria resistance
11. Antioxidant to retard wrinkles discovered by Hebrew University researcher
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/4/2017)... , April 4, 2017   EyeLock LLC ... announced that the United States Patent and Trademark Office ... broadly covers the linking of an iris image with ... transaction) and represents the company,s 45 th issued ... patent is very timely given the multi-modal biometric capabilities ...
(Date:3/30/2017)... The research team of The Hong Kong ... identification by adopting ground breaking 3D fingerprint minutiae recovery and matching ... and accuracy for use in identification, crime investigation, immigration control, security ... ... A research team led by ...
(Date:3/28/2017)... The report "Video Surveillance Market ... Storage Devices), Software (Video Analytics, VMS), and Service (VSaaS, ... to 2022", published by MarketsandMarkets, the market was valued ... to reach USD 75.64 Billion by 2022, at a ... year considered for the study is 2016 and the ...
Breaking Biology News(10 mins):
(Date:6/22/2017)... Frederick, MD (PRWEB) , ... June 22, 2017 ... ... software solutions provider, announced the release of Limfinity® version 6.5, a content-packed update ... Limfinity® framework continue to gain a larger and more diverse base of customers ...
(Date:6/20/2017)... ... June 20, 2017 , ... CTNext , Connecticut’s ... has formed a Higher Education Entrepreneurship Advisory Committee to implement the recommendations of ... other high-ranking representatives from 35 higher education institutions across the state over the ...
(Date:6/20/2017)... Fairfield, Iowa (PRWEB) , ... June 20, 2017 ... ... a chance to immediately determine the adulterants which pose the most likely threat ... 25 - 28 of this year. , IFT's annual food expo attracts ...
(Date:6/20/2017)... ... June 20, 2017 , ... National executive search firm, Slone ... assay development and biomarker expertise, as VP of Scientific Affairs at Cambridge Biomedical. ... bio-analytical assay development and sample testing services. The organization acts as a leading ...
Breaking Biology Technology: