Navigation Links
MU researchers find missing link in plant defense against fungal disease
Date:4/19/2011

Botrytis bunch rot, a disease caused by the fungal pathogen Botrytis cinerea, can devastate grape vineyards. Yet other plants can repel the invader and protect themselves by mounting a form of chemical warfare against the fungi through the production of antimicrobial substances, called phytoalexins.

Scientists at the University of Missouri report on a discovery in a key component in the signaling pathway that regulates the production of phytoalexins to kill the disease-causing fungus Botrytis cinerea.

"When the mustard plant Arabidopsis detects the fungus Botrytis cinerea, it produces a phytoalexin, called camalexin, in response," said Shuqun Zhang, professor of biochemistry and senior author of the study. "Camalexin acts as sort of an antibiotic against the specific fungus, allowing the plant to successfully defend itself."

In previous work, Zhang and his colleagues showed a signaling pathway, known as MAPK cascade, triggers the transcription activation of genes that make camalexin in Arabidopsis. This study shows that the target of this signaling cascade is the WRKY33 transcription factor.

Arabidopsis plants lacking the gene are unable to synthesize camalexin and are more susceptible to the Botrytis cinerea fungus.

The finding provides an important missing link in the chain of molecules that tells the plant to mount an appropriate defense against an invading microbe.

"Phytoalexins are one important way plants defend themselves naturally against pathogens. Knowing how plants regulate this defense response may allow us to naturally enhance pathogen tolerance in plants," Zhang said.


'/>"/>

Contact: Melody Kroll
KrollMM@missouri.edu
573-884-4144
University of Missouri-Columbia
Source:Eurekalert

Page: 1

Related biology news :

1. New biosensor microchip could speed up drug development, Stanford researchers say
2. Nottingham researchers help bridge the urban and rural divide in the UK and India
3. Researchers discover precisely how thalidomide causes birth defects
4. Researchers get a first look at the mechanics of membrane proteins
5. Jefferson researchers unlock key to personalized cancer medicine using tumor metabolism
6. NIH researchers complete whole-exome sequencing of skin cancer
7. New genetic tool helps researchers to analyze cells most important functions
8. NIH researchers identify cause and new treatment for common recurrent fever in children
9. UMMS researchers develop new technology to screen and analyze genetic mutations
10. Livermore researchers develop battery-less chemical detector
11. Researchers ID microbe responsible for methane from landfills
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/15/2016)... ALBANY, New York , March 15, 2016 ... a new market report published by Transparency Market Research "Digital ... Growth, Trends and Forecast 2015 - 2023," the global digital ... at US$ 731.9 Mn in 2014 and is forecast to ... to 2023. Growth of micro, small and medium enterprises (MSMEs) ...
(Date:3/14/2016)... Allemagne, March 14, 2016 ... - --> - Renvoi : image disponible ... --> --> DERMALOG, ... fournit de nouveaux lecteurs d,empreintes digitales pour l,enregistrement ... DERMALOG sera utilisé pour produire des cartes d,identité ...
(Date:3/10/2016)... India , March 10, 2016 ... a new market research report "Identity and Access Management ... & Audit, Compliance, and Governance), by Organization Size, by ... to 2020", published by MarketsandMarkets, The market is estimated ... USD 12.78 Billion by 2020, at a Compound Annual ...
Breaking Biology News(10 mins):
(Date:5/3/2016)... CA (PRWEB) , ... May 03, 2016 , ... ... Playbook™ enterprise talent development, skill-building and compliance training platform on mobile devices, ... training course: Overview of Regulatory Requirements for Medical Devices. The course is essential ...
(Date:5/3/2016)... ... May 03, 2016 , ... ... CEO 2016 on May 31st and June 1st at The Four Seasons Hotel ... executives in the life sciences, offering exclusive access to key decision makers who ...
(Date:5/3/2016)... ... May 03, 2016 , ... Kerafast Inc., developers ... from laboratories across the globe, today announced the availability of a Zika virus ... research toward treatment and prevention measures for the Zika virus, the virus’s geographical ...
(Date:5/3/2016)... 3, 2016 - And Other ... Producers of Those Competitor Biologics  - Biosimilar ... and Prospects ,  Who are the most ... what are their sales potentials? Discover, in our updated ... trends, opportunities and revenue forecasting. Visiongain,s ...
Breaking Biology Technology: