Featured Research

from universities, journals, and other organizations

Frog eggs help researchers find new information on grapevine disease

Date:
April 30, 2014
Source:
University of Missouri-Columbia
Summary:
Vitis vinifera are common grapevines and are the world's favorite wine-producing varietal. However, research has shown that grapevines are susceptible to powdery mildew, a plant disease, which contributes to significant crop loss for most commercial wine varietals that are cultivated each year. Now, researchers have used frog eggs to determine the cause of this disease, and have found that a specific gene in the varietal Cabernet Sauvingon, contributes to its susceptibility.

Powdery mildew on a cabernet sauvignon grapevine leaf.
Credit: USDA grape genetics publications and research.

Vitis vinifera are common grapevines and are the world's favorite wine-producing varietal. However, research has shown that grapevines are susceptible to powdery mildew, a plant disease, which contributes to significant crop loss for most commercial wine varietals that are cultivated each year. Now, researchers at the University of Missouri have used frog eggs to determine the cause of this disease, and have found that a specific gene in the varietal Cabernet Sauvingon, contributes to its susceptibility.

Related Articles


"Powdery mildew disease causes the leaves of the grapevines to lose their chlorophyll and stop producing sugar," said Walter Gassmann, an investigator at the Bond Life Sciences Center and professor in the Division of Plant Sciences in the College of Agriculture, Food, and Natural Resources at MU. "The grape berries also get infected, so the quality and yield are reduced in multiple ways."

According to a report by the USDA, powdery mildew can cause major yield losses if infection occurs early in the crop cycle and conditions remain favorable for development. Powdery mildew appears as white to pale gray fuzzy blotches on the upper surfaces of leaves and thrives in cool, humid and semiarid areas according to the report.

Gassmann used unfertilized frog eggs to test and analyze genes found in the grapevine plants. He studied the biological role of a specific gene that contributes to grapevine's susceptibility to the fungus by incubating it in the frog eggs. Gassmann found that the fungus is able to trick the grapevine into providing nutrients, which allows mildew to grow and devastate the plant. His findings reveal one way that Vitis vinifera is genetically unable to combat the virus that causes powdery mildew.

"Not much is known about the way a grapevine supports the growth of the powdery mildew disease, but the frogs help us provide a reasonable hypothesis for what is going on and why Cabernet Sauvingon could be susceptible," Gassmann said.

Gassmann says this research will open the door for discussing techniques to breed more resistant grapevines in the future.

"The grapevine could be bred to prevent susceptibility and to keep the character of the wine intact," Gassmann said. "Isolating the genes that determine susceptibility could lead to developing immunities for different varietals and other crop plants and may contribute to general scientific knowledge of the grapevine, which has not been studied to the extent of other plants."

The study was funded by grants from the USDA National Institute of Food and Agriculture and was published in the journal Plant and Cell Physiology.


Story Source:

The above story is based on materials provided by University of Missouri-Columbia. The original article was written by Diamond Dixon. Note: Materials may be edited for content and length.


Journal Reference:

  1. S. Pike, F. Gao, M. J. Kim, S. H. Kim, D. P. Schachtman, W. Gassmann. Members of the NPF3 Transporter Subfamily Encode Pathogen-Inducible Nitrate/Nitrite Transporters in Grapevine and Arabidopsis. Plant and Cell Physiology, 2013; 55 (1): 162 DOI: 10.1093/pcp/pct167

Cite This Page:

University of Missouri-Columbia. "Frog eggs help researchers find new information on grapevine disease." ScienceDaily. ScienceDaily, 30 April 2014. <www.sciencedaily.com/releases/2014/04/140430133139.htm>.
University of Missouri-Columbia. (2014, April 30). Frog eggs help researchers find new information on grapevine disease. ScienceDaily. Retrieved November 22, 2014 from www.sciencedaily.com/releases/2014/04/140430133139.htm
University of Missouri-Columbia. "Frog eggs help researchers find new information on grapevine disease." ScienceDaily. www.sciencedaily.com/releases/2014/04/140430133139.htm (accessed November 22, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Saturday, November 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Anglerfish Rarely Seen In Its Habitat Will Haunt You

Anglerfish Rarely Seen In Its Habitat Will Haunt You

Newsy (Nov. 22, 2014) For the first time Monterey Bay Aquarium recorded a video of the elusive, creepy and rarely seen anglerfish. Video provided by Newsy
Powered by NewsLook.com
Birds Around the World Take Flight

Birds Around the World Take Flight

Reuters - Light News Video Online (Nov. 22, 2014) An imperial eagle equipped with a camera spreads its wings over London. It's just one of the many birds making headlines in this week's "animal roundup". Jillian Kitchener reports. Video provided by Reuters
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
Powered by NewsLook.com
Raw: Baby Okapi Born at Houston Zoo

Raw: Baby Okapi Born at Houston Zoo

AP (Nov. 20, 2014) The Houston Zoo released video of a male baby okapi. Okapis, also known as the "forest giraffe", are native to the Democratic Republic of the Congo in Central Africa. Video is mute from source. (Nov. 20) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins