Featured Research

from universities, journals, and other organizations

Afla-Guard also protects corn crops, study shows

Date:
September 3, 2010
Source:
USDA/Agricultural Research Service
Summary:
Afla-Guard, a biological control used to thwart the growth of fungi on peanuts, can be used on corn as well, according to a study by agriculture scientists who helped develop it. After extensive study and research trials in Texas, Afla-Guard was registered by the US Environmental Protection Agency for use on corn, beginning with the 2009 crop.

Molecular geneticist Marilyn Warburton and geneticist Paul Williams tag corn plants identified in the lab as having molecular markers associated with resistance to Aspergillus flavus and aflatoxin accumulation. These tagged plants will be crossed with other breeding lines to develop resistant corn hybrids.
Credit: Photo by Stephen Ausmus

Afla-Guard®, a biological control used to thwart the growth of fungi on peanuts, can be used on corn as well, according to a study by U.S. Department of Agriculture (USDA) scientists who helped develop it. After extensive study and research trials in Texas, Afla-Guard® was registered by the U.S. Environmental Protection Agency (EPA) for use on corn, beginning with the 2009 crop.

Related Articles


Recently retired Agricultural Research Service (ARS) microbiologist Joe Dorner at the National Peanut Research Laboratory in Dawson, Ga., helped develop Afla-Guard®, a biological control for the aflatoxin-producing fungi Aspergillus flavus and A. parasiticus in peanuts. ARS is USDA's principal intramural scientific research agency.

A. flavus and A. parasiticus, naturally-occurring soil fungi, can invade food and feed crops, contaminating them with aflatoxin. Aflatoxin is a human carcinogen produced by the fungi and is also toxic to pets, livestock, and wildlife.

Afla-Guard® is composed of hulled barley coated with spores of a nontoxic strain of A. flavus. The nontoxic Aspergillus fungi successfully compete against the toxic species for the limited space and nutrients each needs to grow and thrive. In peanuts, Afla-Guard® reduced aflatoxins by an average of 85 percent in farmers' stock peanuts and up to 97 percent in shelled, edible-grade peanuts.

In light of this success, Dorner and other ARS scientists conducted a two-year study of Afla-Guard® in corn. They again found that it was effective in reducing aflatoxin levels -- showing an overall reduction of 85 percent, when compared to control fields.

Afla-Guard® was applied to the corn crop in different ways: to soil when corn was less than a meter tall, in plant whorls prior to tassel formation, and as multiple sprays during silking.

Read more about this and other corn-related research in the September 2010 issue of Agricultural Research magazine at: http://www.ars.usda.gov/is/AR/archive/sep10/crops0910.htm

The research was published in the Journal of Food Protection.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. The original article was written by Sharon Durham. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Afla-Guard also protects corn crops, study shows." ScienceDaily. ScienceDaily, 3 September 2010. <www.sciencedaily.com/releases/2010/09/100903121416.htm>.
USDA/Agricultural Research Service. (2010, September 3). Afla-Guard also protects corn crops, study shows. ScienceDaily. Retrieved April 21, 2015 from www.sciencedaily.com/releases/2010/09/100903121416.htm
USDA/Agricultural Research Service. "Afla-Guard also protects corn crops, study shows." ScienceDaily. www.sciencedaily.com/releases/2010/09/100903121416.htm (accessed April 21, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Tuesday, April 21, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deepwater And Dolphins: The Oil Spill's Impact 5 Years On

Deepwater And Dolphins: The Oil Spill's Impact 5 Years On

Newsy (Apr. 20, 2015) — Five years on, the possible environmental impact of the Deepwater Horizon spill includes a sustained die-off of bottlenose dolphins, among others. Video provided by Newsy
Powered by NewsLook.com
Five Years Later, the BP Oil Spill Is Still Taking Its Toll

Five Years Later, the BP Oil Spill Is Still Taking Its Toll

AFP (Apr. 20, 2015) — On April 20, 2010, an explosion and fire on the Deepwater Horizon rig in the Gulf of Mexico started the biggest oil spill in US history. BP recently reported the Gulf is recovering well, but scientists paint a different picture. Duration: 02:36 Video provided by AFP
Powered by NewsLook.com
Thai Customs Seize African Elephant Tusks Worth $6 Mn

Thai Customs Seize African Elephant Tusks Worth $6 Mn

AFP (Apr. 20, 2015) — Thai customs seize four tonnes of African elephant ivory worth $6 million at a Bangkok port in a container labelled as beans. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Un-Bee-Lievable: Bees on the Loose After Washington Truck Crash

Un-Bee-Lievable: Bees on the Loose After Washington Truck Crash

Reuters - US Online Video (Apr. 17, 2015) — A truck carrying honey bees overturns near Lynnwood, Washington, spreading boxes of live bees across the highway. Rough Cut (no reporter narration). Video provided by Reuters
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