Navigation Links
Plants have a double line of defence

Max Planck researchers in Cologne, Germany demonstrate that a multi-step defence system underlies the durable resistance of plants to fungal parasitesPlants are exposed to many different pathogens in the environment. Only a few of these pathogens, however, are able to attack a species of plant and "make it sick". If a particular pathogen is unable to attack a plant, that means that the plant is resistant to it ?in other words, it cannot host the pathogen.

This durable type of immunity of a plant to parasites is called nonhost resistance. Although, in nature, nonhost resistance stops almost all parasite attacks, it has been the subject of little research. Scientists from the Max Planck Institute for Plant Breeding Research in Cologne, working with Volker Lipka, Jan Dittgen, and Paul Schulze-Lefert, and in co-operation with colleagues from the Carnegie Institution in the US, have uncovered the molecular components of nonhost resistance and described this system of defence in the current edition of the journal Science (November 18, 2005). In their findings, they draw parallels between the immune systems of plants and animals. This research could be central to the development of new "green" fungicides.

The Max Planck researchers were able to identify the gene known as PEN (penetration) as an important component of nonhost resistance. They isolated arabidopsis mutations, which are partially susceptible to powdery mildews. If these genes are defective, or if the protein they code is missing in the plant cells, the fungus can invade the leaf epidermis cells more frequently. For that reason the scientists looked particularly at the question of exactly which function the PEN2 protein has in the defence against pathogens.

PEN2 is an enzyme located in the membrane of what are called peroxisomes. These are spatially separated cell compartments, in which metabolic reactions often take place that would be dangerous for the organism at any place other than
'"/>

Source:Max-Planck-Gesellschaft


Page: 1 2 3

Related biology news :

1. Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants
2. Plants, animals share molecular growth mechanisms
3. Plants respond similarly to signals from friends, enemies
4. Plants defy Mendels inheritance laws, may prompt textbook changes
5. Study: Plants use dual defense system to fight pathogens
6. Plants discriminate between self and non self
7. Prozac for future Plants on Mars
8. Plants reveal a secret and bring researchers nearer a cleaner future
9. Plants, too, have ways to manage freeloaders
10. Plants give pests sock in the gut
11. Plants used to detect gas leaks, from outer space!
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Plants have double line defence

(Date:11/5/2014)... de Janeiro, Brazil -Individuals show great diversity in their ... males and females greatly differ in their perceptual evaluation ... of smell tests. , Sex differences in ... behaviors and may be connected to one,s perception of ... emotions. Thus, women,s olfactory superiority has been suggested to ...
(Date:11/4/2014)... about the way our bodies are assembled during early ... they are supposed to become a nerve or a ... correct place and alignment? Researchers at the University of ... a new study, UM researchers describe the signaling systems ... at the head-trunk region. Their discovery may have important ...
(Date:11/4/2014)... Lithuania , Nov. 4, 2014   ... technologies, today announced that the latest version of ... in the Ongoing MINEX evaluation organized ... of fingerprint algorithms using the INCITS 378 fingerprint ... mandatory requirement in public tenders in ...
Breaking Biology News(10 mins):The female nose always knows: Do women have more olfactory neurons? 2The inside story: How the brain and skull stay together 2Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 2Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 3
... Although a recent study suggests that women with normal ... and older may wait up to 15 years for a ... Journal of Bone and Mineral Research (JBMR) cautions that ... Viewpoints allow experts to provide a new perspective on research. ...
... scientists have been awarded $3.1 million by the National ... of Health, to study and develop several new compounds ... without the unwanted side effects common with opiate drugs, ... Bohn, an associate professor in the Department of Molecular ...
... Ridge National Laboratory,s Jaguar supercomputer has completed the ... it among the most powerful scientific computing systems ... upgrade was completed earlier this month. The testing ... dynamics, high-temperature superconductivity, nuclear fusion, and combustion. ...
Cached Biology News:Osteoporosis experts urge bone density testing more frequently for women at risk 2Scripps Florida scientists awarded $3 million to develop new, more effective pain treatments 2ORNL completes first phase of Titan supercomputer transition 2
(Date:11/21/2014)... Palo Alto, Calif. (PRWEB) November 20, 2014 ... (CHI), a nonprofit, public policy research organization representing ... and pharmaceutical firms, and PwC US ... other states in life sciences industry growth. The ... and 2013. The 2015 California Biomedical Industry ...
(Date:11/21/2014)... (PRWEB) November 20, 2014 BlueInGreen, ... Ozone Solutions, LLC (Pinnacle), and PCI, Inc., leading ... that they have been selected to provide a ... Fayetteville, Arkansas Paul R. Noland Wastewater Treatment. ... patented HyDOZ® gas dissolution technology, Pinnacle ...
(Date:11/21/2014)... 21, 2014 2014 Deep Research ... and in-depth research report on the transformer market. ... classification, application, and industry chain structure as well ... market analysis, including China’s domestic market as well ... economic situation analysis. The report also covers information ...
(Date:11/21/2014)... and SAN DIEGO , Nov. ... today announced that President and CEO Marc Hedrick , M.D. ... DATE:   Thursday, December 4, 2014 TIME:    ... here or paste this URL into your browser,s ... that investors pre-register to save time and receive event updates. ...
Breaking Biology Technology:California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 2California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 3California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 4City of Fayetteville Leads Nation with Innovative Ozone Technology 2City of Fayetteville Leads Nation with Innovative Ozone Technology 3City of Fayetteville Leads Nation with Innovative Ozone Technology 4International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 2International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 3Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 2Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 3Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 4
... I wrote on an article on "The Final Death Knell ... on the walls of the demise of Searle due to ... Searle facilities in Chicago. Since then, the Searle name has ... another article I wrote on May 16, 2005, titled " ...
... Madison Area Technical College's Network Security Specialist ... and other threats to computer systems and data, has earned ... National Security Systems . , ,It is only one of ... high-level certification. MATC had to match its curriculum precisely to ...
... attract the presence of major pharmaceutical companies from out ... own environment, said a panel assembled Monday night by ... building the future today in Wisconsin has to do ... CEO Irene Hrusovsky. , ,Woody Hydrick, a senior consultant ...
Cached Biology Technology:Searle spirit lives on in Chicago as alumni celebrate at former home 2Searle spirit lives on in Chicago as alumni celebrate at former home 3Searle spirit lives on in Chicago as alumni celebrate at former home 4Searle spirit lives on in Chicago as alumni celebrate at former home 5Panel stresses drawing outside biotech firms to state 2
... 5'GCCNNNN NGGC3' 3'CGGN NNNNCCG5' Inactivation Conditions: Heat ... phenol treatment followed by ethanol precipitation. Storage ... 0.1mM EDTA, 1.0mM DTT, 0.01% BSA, 50% ... ice. Store at -20C. Unit Definition: One ...
... shaker flask clips, purpose-designed to firmly retain ... clips are equipped with a top retainer ... a bottom retainer spring, and silicon tubing ... glassware. Clips include the required mounting ...
... Polymerase is a thermostable recombinant DNA polymerase, ... extension and other molecular biology applications. Red ... easy and quick identification of reactions to ... of complete mixing. The inert dye has ...
... on measurenment of enzyme activity of TRAP ... plate. The procedure includes two incubation steps ... enzyme reaction) separated by a washing ... determination of human enzymaticaly active TRAP 5 ...
Biology Products: