Navigation Links
Virus-resistant grapevines

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

Post Your Comments:
Related Image:
Virus-resistant grapevines
(Date:11/12/2015)... , Nov. 11, 2015   Growing ... reliable analytical tools has been paving the way ... qualitative determination of discrete analytes in clinical, agricultural, ... are being predominantly used in medical applications, however, ... environmental sectors due to continuous emphasis on improving ...
(Date:11/9/2015)...  Synaptics Inc. (NASDAQ: SYNA ), the leading ... into the automotive market with a comprehensive and dedicated ... consumer electronics human interface innovation. Synaptics, industry-leading touch controllers, ... automotive industry and will be implemented in numerous locations ... , Japan , and ...
(Date:10/29/2015)... Oct. 29, 2015 Daon, a global leader ... has released a new version of its IdentityX ... North America have already installed IdentityX ... includes a FIDO UAF certified server component ... to activate FIDO features. These customers include some of ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... ... November 25, 2015 , ... ... were featured on AngelList early in their initial angel funding process. Now, they ... for individuals looking to make early stage investments in the microbiome space. ...
(Date:11/24/2015)... Nov. 24, 2015 /CNW/ - iCo Therapeutics ("iCo" or ... financial results for the quarter ended September 30, ... Canadian dollars and presented under International Financial Reporting ... ," said Andrew Rae , President ... iCo-008 are not only value enriching for this ...
(Date:11/24/2015)... India , November 24, 2015 ... a new market research report "Oligonucleotide Synthesis Market by ... Application (PCR, Gene Synthesis, Diagnostic, DNA, RNAi), End-User (Research, ... 2020", published by MarketsandMarkets, the market is expected to ... Million in 2015, at a CAGR of 10.1% during ...
(Date:11/24/2015)... Nov. 24, 2015  Tikcro Technologies Ltd. (OTCQB: TIKRF) today announced that ... 2015 at 11:00 a.m. Israel time, at the ... Yigal Allon Street, 36 th Floor, Tel Aviv, Israel ... Paneth and Izhak Tamir to the Board of Directors; ... external directors; , approval of an amendment to certain terms of ...
Breaking Biology Technology: