Navigation Links
Discovery offers hope of saving sub-Saharan crops from devastating parasites
Date:9/10/2010

TORONTO, ON Each year, thousands of acres of crops are planted throughout Africa, Asia and Australia only to be laid to waste by a parasitic plant called Striga, also known as witchweed. It is one of the largest challenges to food security in Africa, and a team of scientists led by researchers from the University of Toronto have discovered chemicals and genes that may break Striga's stranglehold.

When crops grow, their roots release a plant hormone called strigolactone. If the soil contains Striga seed, it will use the released strigolactone as a cue to germinate and infect the crop plants. Once connected to the crop, the Striga plant kills the crop by sucking out its nutrients. "In sub-Saharan Africa alone, Striga has infected up to two-thirds of the arable land," says U of T cell and systems biologist Peter McCourt, principle investigator of a study published this week in Nature Chemical Biology. "With chemicals and genes in hand that influence strigolactone production in plants, we should be able to manipulate the level of this compound by chemical application or plant breeding which would break the Striga-crop interaction.

The scientists used a model genetic plant system called Arabidopsis to screen 10,000 compounds and identify a set of five chemicals, designated cotylimides, which increase the accumulation of strigolactone in plants. They also found related chemicals that decrease strigolactone levels. From there, they screened for mutants of Arabidopsis that were resistant to cotylimides and identified mutants that made less strigolactone. These mutants identified genes that regulate strigolactone levels in plants.


'/>"/>

Contact: Sean Bettam
s.bettam@utoronto.ca
416-946-7950
University of Toronto
Source:Eurekalert  

Page: 1

Related biology news :

1. Gene discovery holds key to growing crops in cold climates
2. First discovery of bilirubin in a flower announced
3. Report: Discovery networks hostage-taking a rare terror event
4. New discovery suggests our lungs are innately prone to silicosis and related diseases
5. A plan to promote sustainable US scientific discovery and innovation in the 21st century is proposed in OMICS
6. Discovery opens door to therapeutic development for FSH muscular dystrophy
7. Possible discovery of earliest animal life pushes back fossil record
8. Discovery of possible earliest animal life pushes back fossil record
9. Huntingtons disease discovery provides new hope for treatment
10. Rediscovery: MBL scientists confirm role for mysterious cell component, the nucleolinus
11. Discovery points to new approach for diabetes therapy
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Discovery offers hope of saving sub-Saharan crops from devastating parasites
(Date:2/3/2016)... Calif. , Feb. 3, 2016 Vigilant ... Police Department in Missouri ... license plate reader (LPR) data from Vigilant Solutions. ... hit-and-run case in which the victim was walking out of a convenience ... parking space next to his vehicle, striking his vehicle ...
(Date:2/2/2016)... 2016 Checkpoint Inhibitors for Cancer – ... Are you interested in the future of cancer ... inhibitors. Visiongain,s report gives those predictions to 2026 ... level. Avoid falling behind in data or ... revenues those emerging cancer therapies can achieve. There ...
(Date:2/1/2016)... BURNABY, Canada , February 1, 2016 ... new technological advancements to drive global touchfree intuitive gesture ...   --> Rising sales of consumer electronics ... intuitive gesture control market size ... of consumer electronics coupled with new technological advancements to ...
Breaking Biology News(10 mins):
(Date:2/12/2016)... ... February 12, 2016 , ... ... Congress Center in Atlanta, Georgia, will include 848 exhibitors (count as of February ... be displaying products and services used by the scientific community in industrial, academic, ...
(Date:2/12/2016)... 12, 2016 MedGenome,s Commitment ... Scientific Understanding of Complex Diseases Such as Cancer, ... --> --> MedGenome, ... and a leading provider of genomics research services ... to the GenomeAsia 100K consortium as a founding ...
(Date:2/11/2016)... AUSTIN, Texas , Feb. 11, 2016  Vermillion, ... focused on gynecologic disease, today announced the formation of ... --> --> Pelvic ... in both diagnosis and management. Once pregnancy is ruled ... fallopian tubes and ovaries, advanced endometriosis, benign ovarian tumors ...
(Date:2/11/2016)...  Spectra BioPharma Selling Solutions (Spectra) is a ... companies the experience, expertise, operational delivery and customer ... teams. Created in concert with industry leading commercial ... and tactical needs of its clients by providing ... personal and non-personal promotion. --> ...
Breaking Biology Technology: