Navigation Links
Flower-dwelling yeast licensed for use against scab disease
Date:8/6/2010

This release is available in Spanish.

A beneficial yeast that tolerates fungicide may offer a "one-two punch" against Fusarium graminearum, the fungal culprit behind Fusarium head blight ("scab").

U.S. Department of Agriculture (USDA) and Ohio State University (OSU) scientists isolated an improved variant of the yeast Cryptococcus flavescens about two years ago, and are evaluating its potential as a biocontrol agent.

In susceptible wheat and barley varieties, scab-afflicted kernels appear shrunken and chalky-white. The fungus can also produce a mycotoxin that can diminish the grain's value or make it less safe to eat.

Spraying fungicide can reduce scab by 50 to 60 percent; however, farmers are required to stop using the chemicals soon after wheat starts to flower. Although this measure keeps fungicide residues to a minimum, it can leave the grain vulnerable to new invasions by the scab fungus, notes David Schisler, a plant pathologist with USDA's Agricultural Research Service (ARS). He works at the ARS Crop Bioprotection Research Unit in Peoria, Ill. ARS is USDA's principal intramural scientific research agency.

Since 1998, he has teamed with OSU professor Mike Boehm and others to exploit the ability of some microorganisms to outcompete F. graminearum for space and nutrients in wheat's flowers and seed heads.

In December 2009, their "top pick," the naturally occurring yeast C. flavescens, was licensed by Sci Protek, Inc., of Visalia, Calif. In July, Sci Protek received a second license, this time for strain OH 182.9 3C, a fungicide-tolerant variant of C. flavescens recently discovered by Schisler and Boehm. ARS and OSU are working together in the patenting and licensing of the technology.

According to Schisler, 3C is better at preventing scab than its predecessor and can be applied to wheat either alone or combined with prothioconazole or other similar fungicide chemistries. In 2009 field trials, 3C reduced scab by 30 to 70 percent, versus 10 to 50 percent for C. flavescens. And when combined with prothioconazole, 3C reduced kernel damage by 85 percent versus 60 percent for prothioconazole alone.

A second round of multi-state trials aims to replicate the results, potentially opening the door to dual protection for wheat, both before and after it flowers.


'/>"/>

Contact: Jan Suszkiw
jan.suszkiw@ars.usda.gov
301-504-1630
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

Related biology news :

1. Guardian of the genome: Protein helps prevent damaged DNA in yeast
2. Genetics Society of America to host 2010 Yeast Genetics & Molecular Biology Meeting
3. New yeast can ferment more sugar, make more cellulosic ethan
4. Discovery: Yeast make plant hormone that speeds infection
5. You had me at hello: Frisky yeast know who to shmoo after 2 minutes
6. Genetic patterns rise from huge yeast samples
7. Scientists find new genes for cancer, other diseases in plants, yeast and worms
8. Sugar-hungry yeast to boost biofuel production
9. 2010 Yeast Genetics and Molecular Biology Meeting
10. Charles Drew cancer studies with yeast yield excellent results
11. Helpful yeast battles food-contaminating aflatoxin
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/27/2017)... CENTRE, N.Y. , March 27, 2017 /PRNewswire-USNewswire/ ... Healthcare Information and Management Systems Society (HIMSS) Analytics ... Outpatient EMR Adoption Model sm . In addition, ... 12% of U.S. hospitals using an electronic medical ... CHS for its high level of EMR usage ...
(Date:3/24/2017)... DUBLIN , Mar 24, 2017 Research ... Vehicle Access System Market Analysis & Trends - Industry Forecast to ... ... poised to grow at a CAGR of around 15.1% over the ... This industry report analyzes the market estimates and forecasts for ...
(Date:3/23/2017)... -- Research and Markets has announced the addition of ... Industry Forecast to 2025" report to their offering. ... The Global Vehicle Anti-Theft ... 8.8% over the next decade to reach approximately $14.21 billion by ... and forecasts for all the given segments on global as well ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... 12, 2017 , ... BioMedGPS announces expanded coverage of SmartTRAK ... module, US Hemostats & Sealants. , SmartTRAK’s US Market for Hemostats and Sealants ... sealants and biologic sealants used in surgical applications. BioMedGPS estimates the market will ...
(Date:10/11/2017)... YORBA LINDA, CA (PRWEB) , ... October 11, ... ... adapted to upregulate any gene in its endogenous context, enabling overexpression experiments and ... activation (CRISPRa) system with small RNA guides is transformative for performing systematic gain-of-function ...
(Date:10/11/2017)... a leading provider of patient support solutions, has announced the ... which will launch this week. The VMS CNEs will address ... enhance the patient care experience by delivering peer-to-peer education programs ... to help women who have been diagnosed and are being ... ...
(Date:10/11/2017)... Florida (PRWEB) , ... October 11, 2017 , ... ... Drug Administration (FDA) has granted orphan drug designation to SBT-100, its novel anti-STAT3 ... for the treatment of osteosarcoma. SBT-100 is able to cross the cell membrane ...
Breaking Biology Technology: