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:6/9/2016)... attendance control systems is proud to announce the introduction of fingerprint attendance control software, ... employees are actually signing in, and to even control the opening of doors. ... ... ... Photo - http://photos.prnewswire.com/prnh/20160609/377487 ...
(Date:6/2/2016)... , June 2, 2016 The Department ... has awarded the 44 million US Dollar project, for the ... Vehicle Plates including Personalization, Enrolment, and IT Infrastructure , ... in the production and implementation of Identity Management Solutions. Numerous ... however Decatur was selected for the ...
(Date:5/24/2016)... Ampronix facilitates superior patient care by providing unparalleled technology to leaders of ... the latest premium product recently added to the range of products distributed by Ampronix. ... ... ... Medical Display- Ampronix News ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... ... June 24, 2016 , ... Researchers at the Universita Politecnica delle ... people with peritoneal or pleural mesothelioma. Their findings are the subject of a new ... , Diagnostic biomarkers are signposts in the blood, lung fluid or tissue of mesothelioma ...
(Date:6/23/2016)... June 23, 2016 /PRNewswire/ - FACIT has announced ... biotechnology company, Propellon Therapeutics Inc. ("Propellon" ... commercialization of a portfolio of first-in-class WDR5 inhibitors ... such as WDR5 represent an exciting class of ... precision medicine for cancer patients. Substantial advances have ...
(Date:6/23/2016)... -- The Prostate Cancer Foundation (PCF) is pleased to announce 24 new ... prostate cancer. Members of the Class of 2016 were selected from a pool ... Read More About the Class of 2016 PCF Young Investigators ... ... ...
(Date:6/23/2016)... OTTAWA, ON (PRWEB) , ... June 23, 2016 , ... ... former DNA Technical Leader at the Arkansas State Crime Laboratory, has joined STACS DNA ... joining the STACS DNA team,” said Jocelyn Tremblay, President and COO of STACS DNA. ...
Breaking Biology Technology: