Navigation Links
Genes for drought-tolerance, aflatoxin may mingle to boost corn production
Date:1/4/2010

COLLEGE STATION Scientists plan to put two and two together in a study that will likely yield improved U.S. corn quality and yields.

Two traits that impact corn will be examined by two researchers hoping to use basic scientific discoveries to improve products at the farm level.

Drought tolerance and aflatoxin resistance are the targets of the study by Texas AgriLife Research scientists who have been awarded a $500,000 grant for the project by the U.S. Department of Agriculture.

The idea is to use basic science which identified the drought- and aflatoxin-related genes in the lab of Dr. Michael Kolomiets and apply them in corn breeding through the expertise of Dr. Seth Murray. Kolomiets is a plant pathologist and Murray, the project's lead investigator, is a corn genetics researcher.

"We plan to use basic knowledge we learned from previous studies and translate that through breeding corn for drought tolerance and aflatoxin resistance," Kolomiets said.

The "basic knowledge" stems from discoveries Kolomiets has made in researching a 13-member family of genes called LOX, or lipoxygenase.

He said one LOX family member is connected to a plant's drought response while another is linked to aflatoxin development.

"A geneticist basically has to break something to see how it works," Kolomiets said. "So in this case, we were able to shut down each gene in the lab to decipher what its function is for the plant biology and the plant's ability to respond to environmental stresses."

It seems that one of the LOX genes is "hijacked" when droughty conditions are ripe for the Aspergillus fungi to ride into the plant with its toxins. Yet another member of the gene family is the reason for plant aging and death once the plant is under severe drought stress.

Lipids the fats and oils in plants like corn, soybeans, peanuts, tree nuts and cotton are sought out, it seems, by pathogens like fungi. So, Kolomiets reasons, preventing the gene hijacking via a mutation of the gene that has been shut down will help corn plants avoid problems with these weather-related maladies.

Drought is a recurring problem for corn producers especially in the southern U.S. and throughout other parts of the world. Aflatoxin, which becomes prevalent in drought years, is a serious issue because it renders corn inedible for humans as well as for many livestock, depending on the content level. Both of these concerns cause a blow to the economy when the corn supply is cut by lower yields or poor quality, the researchers pointed out.

"Loss in Texas from mycotoxins (mostly aflatoxin) was $13 million in 2008 the highest in the nation," according to the researchers.

Murray and Kolomiets will begin the four-year project in January. They will be assisted by Dr. Tom Isakiet, Texas AgriLife Extension Service plant pathologist, who will train graduate students for the project.


'/>"/>

Contact: Kathleen Phillips
ka-phillips@tamu.edu
979-845-2872
Texas A&M AgriLife Communications
Source:Eurekalert

Related biology news :

1. New RNA interference technique can silence up to 5 genes
2. There may be a party in your genes
3. New genes for lung disease discovered
4. Extreme genes shed light on origins of photosynthesis
5. Happy holidays from the groaning board; Western diets turn on fat genes
6. Maize cell wall genes identified, giving boost to biofuel research
7. Largest gene study of childhood IBD identifies 5 new genes
8. Longevity tied to genes that preserve tips of chromosomes
9. Study finds 231 new genes associated with head and neck cancer
10. Young age at first drink may affect genes and risk for alcoholism
11. Genes may explain why children who live without dads have earlier sex
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/2/2016)... 2016   The Weather Company , an IBM Business ... industry-first capability in which consumers will be able to interact ... questions via voice or text and receive relevant information about ... Marketers have long sought an advertising solution that can ... personal, relevant and valuable; and can scale across millions of ...
(Date:5/16/2016)... May 16, 2016   EyeLock LLC , a ... the opening of an IoT Center of Excellence in ... expand the development of embedded iris biometric applications. ... of convenience and security with unmatched biometric accuracy, making ... aside from DNA. EyeLock,s platform uses video technology to ...
(Date:4/28/2016)... GOTHENBURG, Sweden , April 28, 2016 ... 1,491.2 M (139.9), up 966% compared with the first quarter of ... Operating profit totaled SEK 589.1 M (loss: 18.8) and the operating ... SEK 7.12 (loss: 0.32) Cash flow from operations was ... , The 2016 revenue guidance is unchanged, SEK 7,000-8,500 M. ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... 2016 Apellis Pharmaceuticals, Inc. today announced ... of its complement C3 inhibitor, APL-2. The trials ... dose studies designed to assess the safety, tolerability, ... in healthy adult volunteers. Forty subjects ... single dose (ranging from 45 to 1,440mg) or ...
(Date:6/23/2016)... -- Andrew D Zelenetz , ... Published recently in Oncology & ... Andrew D Zelenetz , discusses the fact ... placing an increasing burden on healthcare systems worldwide, ... the patents on many biologics expiring, interest in ...
(Date:6/23/2016)... ... June 23, 2016 , ... ClinCapture, the only free ... and will showcase its product’s latest features from June 26 to June 30, ... poster on Disrupting Clinical Trials in The Cloud during the conference. DIA ...
(Date:6/23/2016)... Connecticut (PRWEB) , ... June 23, 2016 , ... ... introduce a new line of intelligent tools designed, tuned and optimized exclusively for ... September 12–17 in Chicago. The result of a collaboration among several companies with ...
Breaking Biology Technology: