Navigation Links
TUM researchers discover a new switch in resistance to plant diseases
Date:7/12/2011

This release is available in German.

Plants, too, have an immune system that protects them against diseases. The early detection of pathogens and the subsequent immune response, in particular at the cell wall, work as a protective shield. However, the pathogens that cause plant diseases have their weapons, too. Some are able to suppress the natural cell wall reaction in plants. "One particularly ingenious attacker, powdery mildew, can even reprogram cells in such a way that they adapt their architecture and metabolism to accommodate the fungus. The plant thus actively fosters the in-growth of the harmful mildew and even supplies it with nutrients," explains Prof. Ralph Hckelhoven from the TUM Chair of Phytopathology. How the mildew manages this manipulation and which plant components are involved in the process is still largely shrouded in mystery.

Hckelhoven's team of researchers has now succeeded in unraveling a part of the mystery. With the support of colleagues from Gatersleben, Gieen and Erlangen, the Weihenstephan scientists identified two proteins in barley that powdery mildew takes advantage of during its "hostile takeover" of living plant cells. Together, the two protein substances steer development processes in the plant cell. In barley, for instance, they are responsible for the growth of root hairs. The one protein, called RACB, is a molecular switch, which reacts to signals from outside to initiate a structural and metabolic response in the plant cells. In particular, it is involved in enlarging the plant cell surface during the growth process. The other protein, called MAGAP1, serves as its counterpart and can prevent or locally limit these activities in the cell.

The researchers observed just how the RACB protein supported the fungus during plant in-growth. A basic function of the protein, increasing the surface of the plant cell
'/>"/>

Contact: Jana Bodicky
bodicky@zv.tum.de
49-816-171-5403
Technische Universitaet Muenchen
Source:Eurekalert

Page: 1 2

Related biology news :

1. NC State researchers get to root of parasite genome
2. Researchers find animal with ability to survive climate change
3. Researchers find an essential gene for forming ears of corn
4. Researchers note differences between people and animals on calorie restriction
5. Researchers study acoustic communication in deep-sea fish
6. Researchers discover that growing up too fast may mean dying young in honey bees
7. Researchers study how pistachios may improve heart health
8. UI researchers find potentially toxic substance present in Chicago air
9. Researchers develop new self-training gene prediction program for fungi
10. Case Western Reserve University researchers track Chernobyl fallout
11. Childrens National researchers develop novel anti-tumor vaccine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... Stanford, CAEveryone,s heard of the birds and the ... flowers that are being fertilized. The fertilization process ... extensive communication between the male and female reproductive ... Stanford, Regensburg, Heidelberg, and Munich, and including Carnegie,s ... discoveries in the chemical signaling process that guides ...
(Date:8/21/2014)... study of American singles found that during sex ... orgasm rates. On average, men experience orgasm 85.1 ... making little difference. For women, however, orgasm occurrence ... 62.9 percent of the time during sex with ... with women,s sexual orientation, with lesbian women experiencing ...
(Date:8/21/2014)... Algae might seem easy to ignore, but they are ... animals depend upon. Humans are increasingly dependent on algae, ... atmosphere and sink it to the bottom of the ... and laboratory experiments, researchers have evidence showing that viruses ... the algae,s blooms, even when all else stays essentially ...
Breaking Biology News(10 mins):Calcium and reproduction go together 2Orgasm rates for single women less predictable than men's, vary by sexual orientation 2Orgasm rates for single women less predictable than men's, vary by sexual orientation 3Orgasm rates for single women less predictable than men's, vary by sexual orientation 4Viruses take down massive algal blooms, with big implications for climate 2
... dietary proteins have proven effectiveness thanks to their appetite-suppressing ... Inserm,s Unit 855 "Nutrition and the Brain" in Lyon, ... properties. The researchers describe in detail the chain reactions ... the brain long after a meal. Their results, published ...
... - Atmospheric scientists at the Harvard School of Engineering and ... "bottom-up" estimates of China,s carbon dioxide (CO 2 ) emissions, ... of the uncertainties surrounding China,s CO 2 emissions. ... both at the sources and in the air, may be ...
... new research report published online in the ... cancer, and dependence on breathing machines--microRNA-320a. In the report, ... for helping control glycolysis. Glycolysis is the process of ... some cancers, and contributes to the wasting of unused ...
Cached Biology News:The 'appetite-suppressing' effect of proteins explained 2Atmospheric scientists release first 'bottom-up' estimates of China's CO2 emissions 2Atmospheric scientists release first 'bottom-up' estimates of China's CO2 emissions 3Atmospheric scientists release first 'bottom-up' estimates of China's CO2 emissions 4Stanford scientists find molecule to starve lung cancer and improve ventilator recovery 2
(Date:8/21/2014)... N.Y. , Aug. 21, 2014  BioSpecifics ... biopharmaceutical company developing first in class collagenase-based products ... or CCH) in the U.S. and XIAPEX ® ... significant results from a randomized, double-blind Phase 2a ... cellulite, or edematous fibrosclerotic panniculopathy. The results showed ...
(Date:8/21/2014)... scientists has observed tiny quantum vortices in cold droplets ... Science that the exotic vortices arrange themselves ... the first time that the quantum vortices, which have ... known as superfluid helium, have been detected in nanodroplets. ... Vilesov of the University of Southern California, one of ...
(Date:8/21/2014)... His Majesty Willem-Alexander, King of the Netherlands to ... Majesty Willem-Alexander, King of the Netherlands, has announced that ... Advanced Biofuels’ Project LIBERTY cellulosic ethanol plant in Emmetsburg, ... take part in the Grand Opening Ceremony to perform ... and tour the plant. POET-DSM is a joint venture ...
(Date:8/21/2014)... Mass. , Aug. 21, 2014  Decision ... Brazil and ... The uptake of several newly approved agents, the ... this indication and the launch of emerging biologics ... markets. In particular, the emerging IL-5 inhibitors will ...
Breaking Biology Technology:BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 2BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 3BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 4BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 5Scientists observe quantum vortices in cold helium droplets 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 3Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 2Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 3
... electrophoresis into an automated, high-throughput operation with ... system is ideal for analyzing multiple PCR ... Fully automated, robot-compatible, and ready to put ... your high-throughput screening assignments as easy as ...
...
Fluorescence Preserving Media, 100 mL...
Size & Applications: 20 ml Storage Temp.: -20C Shelf Life: 12 months ...
Biology Products: