Navigation Links
Virus-resistant grapevines
Date:7/2/2009

This release is available in German.

A good wine needs to ripen. But it's a long way to the barrel. Even before the harvest, the grapevines have to overcome all kinds of obstacles. Extremely hot or rainy periods can destroy entire crops, not to mention the wide variety of pests that can appear on the scene. Bugs such as the vine louse or the rust mite, fungi such as mildew, or viruses such as the "Grapevine fanleaf virus" (GFLV for short) can give the vines a hard time. The GFLV infects the grapevine and causes fanleaf disease, resulting in deformed and very yellowed leaves, smaller grapes and crop loss.

However, there will soon be a cure for GFLV infections: Researchers at the Fraunhofer Institute for Molecular Biology and Applied Ecology IME in Aachen are making certain plants resistant to the GFLV by genetic engineering. "Our modified plants produce antibodies," explains Dr. Stefan Schillberg, head of department at the IME. "These antibodies 'recognize' the viruses and prevent them from spreading in the plant and causing damage." To enable the plant to produce the antibodies, the scientists have to modify its genotype and channel genetic information for the antibodies into it. This task is performed by tiny helpers called agrobacteria, which genetic engineers have been using for over twenty years. These are soil bacteria that inherently transfer parts of their own genome to that of the plant. Using simple routine processes, the researchers introduce the antibody gene into the bacteria, which then act as a transport vehicle and carry it over to the vine.

The researchers are still testing this process on model plants, and the first results show that their modified versions are up to 100 percent resistant to the virus. "The antibody is produced very effectively inside the plants," says Schillberg. "The next step on the agenda is to test the method on actual grapevines and then to carry out field tests." The scientists' long-term goal is to curb the use of pesticides. "Certain pesticides are necessary to fight GFLV infections," Schillberg explains. But they often only have a limited effect. They are also harmful to the environment and therefore banned in many regions. Countries like Chile, for example, which depend strongly on their winegrowing business, could benefit enormously from the pathogen-resistant grapevines and improve their crop yields.


'/>"/>

Contact: Stefan Schillberg
stefan.schillberg@ime.fraunhofer.de
49-241-608-511-051
Fraunhofer-Gesellschaft
Source:Eurekalert  

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Virus-resistant grapevines
(Date:2/2/2017)... Feb. 2, 2017   TapImmune, Inc. ... company specializing in the development of innovative peptide ... of cancer and metastatic disease, announced today it ... manufacturing of a second clinical lot of TPIV ... receptor alpha. The manufactured vaccine product will be ...
(Date:2/1/2017)... 1, 2017 IDTechEx Research, a leading provider ... announces the availability of a new report, Sensors for Robotics: ... Continue Reading ... ... robots. Source: IDTechEx Report "Sensors for Robotics: Technologies, Markets and Forecasts ...
(Date:1/26/2017)... Jan. 26, 2017  Crossmatch, a leading provider of ... solution aimed at combatting fraud, waste and abuse in ... at the Action on Disaster Relief conference in ... for UN agencies and foreign assistance organizations throughout ... and abuse are a largely unacknowledged problem in the ...
Breaking Biology News(10 mins):
(Date:2/24/2017)... 2017 China Cord Blood Corporation (NYSE: ... provider of cord blood collection, laboratory testing, hematopoietic stem ... its unaudited financial results for the third quarter and ... 31, 2016. Third Quarter of Fiscal 2017 ... of fiscal 2017 increased by 18.6% to RMB200.9 million ...
(Date:2/24/2017)... Feb. 24, 2017  OncoSec Medical Incorporated ("OncoSec") (NASDAQ: ... host a Key Opinion Leader event to highlight new ... and poster presentation at the upcoming 2017 ASCO-SITC Immuno-Oncology ... event will be held in-person and via live webcast ... 9:00 AM PST at the Lotte New York Palace ...
(Date:2/23/2017)... Feb. 23, 2017 /PRNewswire/ - The Fight Against Cancer ... Research (OICR) are pleased to report that Fusion Pharmaceuticals ... with Johnson & Johnson Innovation – JJDC, Inc. (JJDC) ... groups HealthCap, TPG Biotechnology Partners, and Genesys Capital, as ... ...
(Date:2/23/2017)... ROCHESTER, Minn. , Feb. 23, 2017 /PRNewswire/ ... a new product line of oncolytic vaccinia viruses ... Genelux Corporation as part of Genelux,s proprietary, vaccinia ... "We are excited to enter into a partnership ... time, selected oncolytic vaccinia viruses for use in ...
Breaking Biology Technology: