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:2/1/2016)... , February 1, 2016 Rising ... to drive global touchfree intuitive gesture control market ... Rising sales of consumer electronics coupled with new ... market size through 2020   ... coupled with new technological advancements to drive global touchfree ...
(Date:1/25/2016)...   Unisys Corporation (NYSE: UIS ) today announced ... International Airport, New York City , to help ... to enter the United States using passports ... pilot testing of the system at Dulles last year. The ... during January 2016. --> pilot testing of the ...
(Date:1/20/2016)... , Jan. 20, 2016 A market that ... directly benefit from the explosion in genomics knowledge. Learn ... Sound Research. A range of dynamic trends are pushing ... - personalized medicine - pharmacogenomics - pathogen evolution - ... large markets - greater understanding of the role of ...
Breaking Biology News(10 mins):
(Date:2/6/2016)... ... February 06, 2016 , ... Contact:, ... Center for Excellence in Education Sponsors Teacher Training Program , Bite of Science ... – The Center for Excellence in Education (CEE) will sponsor a Bite of ...
(Date:2/5/2016)... 2016 Australian-US drug discovery and development company, Novogen ... of a new Chairman, Mr John O,Connor , and ... James Garner , has also been formally ... Acting CEO, Mr Iain Ross , will resume his ... James Garner , has also been formally appointed to ...
(Date:2/4/2016)... , ... February 04, 2016 ... ... presented by Bloomsburg University’s Digital Forensics Club, takes place February 5-6 at ... event features 20+ speakers and activities such as workshops and competitions for ...
(Date:2/4/2016)... EDISON, N.J. , Feb. 4, 2016 ... company focused on the development and commercialization of targeted ... BIO CEO & Investor Conference 2016, to be held ... and Source Capital Group,s 2016 Disruptive Growth & Healthcare ... on February 10-11, 2016. James Sapirstein ...
Breaking Biology Technology: