Navigation Links
Understanding plants' overactive immune system will help MU researchers build better crops
Date:5/27/2009

COLUMBIA, Mo. A plant's immune system protects the plant from harmful pathogens. If the system overreacts to pathogens, it can stunt plant growth and reduce seed production. Now, University of Missouri researchers have identified important suppressors that negatively regulate the responses of the immune system in the plant species Arabidopsis thaliana. Understanding the immune system of plants would allow breeders to create better yielding crop plants.

"The immune system provides plants with strong protection from pathogens," said Walter Gassmann, associate professor of plant sciences in the MU Christopher S. Bond Life Sciences Center and the College of Agriculture, Food and Natural Resources. "However, this response has the potential to be highly deleterious to the plant and needs to be tightly controlled. Certain suppressors protect the plant from responding to harmless stimuli and from overreacting to pathogens. If there is a mutation in these suppressors, the immune system can actually do more damage than good."

One way that plants fight pathogens is through effector-triggered immunity (ETI), which relies on the detection of pathogen effector proteins (proteins that are deployed by pathogens to interfere with the plant immune system). After the detection of a pathogen, specific proteins in the plant, known as resistance proteins, elicit an effective defense response. The plants' resistance proteins are regulated by suppressors to achieve minimal side effects to the plant while providing optimal responses to pathogens. However, when the ETI is overly activated, it can cause stunted growth and poor seed production.

In the study, MU researchers examined plants with genetic mutations that resulted in heightened plant immunity. By examining this mutation, researchers were able to identify specific genetic components that may negatively regulate the immune system and thus contribute to an appropriate immune response.

"The general control of effector-triggered signaling is poorly understood," Gassmann said. "Better insight into the immune system response will allow us to develop plants with more durable safeguards against pathogens."

Gassmann's research has been published recently in The Plant Journal and Plant Signaling & Behavior. The papers were co-authored by former post-doctoral researcher Soon Il Kwon, current graduate student Sang Hee Kim, current post-doctoral researcher Saikat Bhattacharjee, and former visiting scientist Jae-Jong Noh.


'/>"/>

Contact: Kelsey Jackson
JacksonKN@missouri.edu
573-882-8353
University of Missouri-Columbia
Source:Eurekalert  

Related biology news :

1. Diminuendo -- New mouse model for understanding cause of progressive hearing loss
2. Optimum running speed is stride toward understanding human body form
3. Understanding soil carbon sequestration: New book presents key concepts
4. Understanding natural crop defenses
5. Biologist receives the 2008 AAAS Public Understanding of Science and Technology Award
6. Understanding phosphorus in soils is vital to proper management
7. Understanding extinct microbes may influence the state of modern human health
8. New technique is quantum leap forward in understanding proteins
9. Stowers Institutes Linheng Li Lab expands understanding of bone marrow stem cell niche
10. Understanding how oxidative stress impairs endothelial progenitor cell function
11. Caltech scientists engineer supersensitive receptor, gain better understanding of dopamine system
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Understanding plants' overactive immune system will help MU researchers build better crops
(Date:4/4/2017)... NEW YORK , April 4, 2017   ... solutions, today announced that the United States Patent and ... The patent broadly covers the linking of an iris ... the same transaction) and represents the company,s 45 th ... our latest patent is very timely given the multi-modal ...
(Date:3/30/2017)... 2017 The research team of The Hong ... fingerprint identification by adopting ground breaking 3D fingerprint minutiae recovery and ... speed and accuracy for use in identification, crime investigation, immigration control, ... ... A research team led ...
(Date:3/28/2017)... -- The report "Video Surveillance Market by ... Devices), Software (Video Analytics, VMS), and Service (VSaaS, Installation ... 2022", published by MarketsandMarkets, the market was valued at ... reach USD 75.64 Billion by 2022, at a CAGR ... considered for the study is 2016 and the forecast ...
Breaking Biology News(10 mins):
(Date:9/20/2017)... ... , ... Diversity focused business accelerator, The Refinery , announced today they ... the top technology-driven, women-led startups in Boston, MA, New Haven/Hamden, CT, and Newark, NJ. ... going on that week – in Boston, it will be part of the City ...
(Date:9/20/2017)... ... September 20, 2017 , ... ... examining the effects of exoskeleton-assisted walking on gait parameters and neuromuscular activity ... "Neuromechanical adaptations during a robotic powered exoskeleton assisted walking session" (doi:10.1080.10790268.2017.1314900) was ...
(Date:9/20/2017)... , ... September 20, 2017 , ... ... and building management solutions, announced today the opening of an office in Taipei, ... and the Greater China region, while developing new relationships in the region. Located ...
(Date:9/19/2017)... ... September 19, 2017 , ... A best-selling ... early-stage tech companies. “Grit” author Angela Duckworth and her team at Character Lab ... is Cooley, an international law firm with decades of experience supporting high-growth companies ...
Breaking Biology Technology: