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:2/5/2016)... http://www.researchandmarkets.com/research/5kvw8m/global_facial ) has ... Facial Recognition Market 2016-2020" report to ... has announced the addition of the ... to their offering. --> Research ... the addition of the "Global Facial ...
(Date:2/3/2016)... --> --> Fourth quarter ... up 1,187% compared with fourth quarter of 2014. Gross margin ... (loss: 30.0). Earnings per share increased to SEK 6.39 (loss: ... (neg: 74.7). , --> --> ... 2,900.5 M (233.6), up 1,142% compared with 2014. Gross margin ...
(Date:2/3/2016)... , Feb. 3, 2016 Vigilant Solutions announces ... Department in Missouri solved two ... reader (LPR) data from Vigilant Solutions. Brian ... in which the victim was walking out of a convenience store and witnessed ... next to his vehicle, striking his vehicle and leaving ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... Feb. 10, 2016 NX Prenatal Inc., a ... NeXosome® technology for early warning of adverse pregnancy ... recent study by Dr. Thomas McElrath ... Maternal Fetal Medicine,s (SMFM) annual meeting held in ... , 2016.  The presentation reported initial positive top-line ...
(Date:2/10/2016)... -- Allergan plc (NYSE: AGN ) a leading global ... Allergan,s CEO and President, will be featured as the ... RBC Capital Markets Healthcare Conference on Tuesday, February 23, ... Palace Hotel in New York, NY ... be accessed on Allergan,s Investor Relations web site at ...
(Date:2/10/2016)... ... February 10, 2016 , ... LATHAM, NEW YORK... Marktech Optoelectronics ... West conference in San Francisco’s Moscone Center from February 16-18, 2016, and at ... , These latest InGaAs PIN diode standard packages feature a TO-46 metal can with ...
(Date:2/10/2016)... FL (PRWEB) , ... February 10, 2016 , ... ... in regenerative medicine, has announced a new agreement with Singapore-based Global Stem Cells ... physicians from the Philippines, Thailand and Singapore in the latest adipose and bone ...
Breaking Biology Technology: