HOME >> BIOLOGY >> NEWS
Genetic secrets of metal-eating plants uncovered

WEST LAFAYETTE, Ind. Genes thought to allow plants to accumulate large amounts of metal in their tissues have been identified and cloned by a Purdue University scientist.

The finding is expected to lead to new crop plants that can clean up industrial contamination, new foods that fight disease and reduced work for some farmers.

David E. Salt, associate professor of plant molecular physiology and principal investigator on the project, says that this discovery opens up new avenues for plant breeders.

"This is really one of the first tools that we've got to manipulate this process of metal hyperaccumulation," he says. "So what we're going to do now is to start expressing these genes in nonaccumulating plants to see if we can turn them into metal-accumulating plants."

The genes were identified from the tiny wild mustard Thlaspi goesingense, a plant that lives in the Austrian Alps, where it hyperaccumulates nickel. The plant is similar to the nonmetal-accumulating plant Arabidopsis thaliana, which is commonly used in scientific research.

The research is published in the Tuesday (8/14) issue of the Proceedings of the National Academy of Science.

Salt says more than 350 species of plants are known to accumulate metal such as nickel, zinc, copper, cadmium, selenium or manganese in high levels.

"The plant species that we're interested in can accumulate 1 percent of their dry biomass as nickel. In a normal plant you might expect to find 10 to 100 parts per million of nickel in their tissue, and these plants can accumulate 10,000 parts per million," he says. "So they obviously have this extraordinary capacity to accumulate metals, and they do this in the wild without any interference from man. They just do this for a living."

Hyperaccumulating plants store the metal in microscopic structures in their cells called vacuoles. The vacuoles are membrane-lined structures that protect the rest of the ce
'"/>

Contact: Steve Tally
tally@aes.purdue.edu
765-494-9809
Purdue University
13-Aug-2001


Page: 1 2 3

Related biology news :

1. Genetic mutations linked to the practice of burning coal in homes in China
2. Genetic differences might help distinguish thyroid cancers
3. Genetic modification of linseed produces healthier omega 3 and 6 fatty acids
4. Wiley publishes Welcome to the Genome: A Users Guide to the Genetic Past, Present, and Future
5. Genetically modified bacterium as remedy for intestinal diseases
6. Genetic analysis rewrites salamanders evolutionary history
7. Genetic map of important tree genes outlined
8. Genetically-engineered marathon mouse keeps on running
9. Genetic clues found for common congenital brain disorder
10. Genetic mutation linked to more aggressive breast cancer found more often in African-Americans
11. Genetic discovery could dramatically reduce need for liver transplants in children

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. ... of Neihulizumab, a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), ... Dr. Paul J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, ...
(Date:6/28/2020)... ... June 25, 2020 , ... In an upcoming episode scheduled ... accelerated Point of Care Testing solutions (POCT). Check local listings for more info. , ... medical offices and are shipped to labs throughout the country. Results are then available ...
(Date:6/23/2020)... THE WOODLNDS, Texas (PRWEB) , ... June 23, ... ... in X-ray analytical instrumentation, is pleased to announce the next event in a ... of X-ray scattering. , The TOPIQ series of webinars was developed in response ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... ... August 11, 2020 , ... ... firm, is making available for free its new white paper – Simulated ... simulation testing into today’s biologics licensing application (BLA). In response, Modality Solutions ...
(Date:8/3/2020)... ... August 03, 2020 , ... ERT, ... and CEO has been named one of the 100 most inspiring individuals in ... 100 honorees are selected based on how they have inspired their colleagues and ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... the launch of its new tagline, “BUILDING FOR LIFE.” The adoption of this ... around the globe, requiring fast track capacity to provide patients with urgently needed ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... the leading global provider of advanced delivery technologies, development, and manufacturing solutions for ... they have entered into a strategic partnership whereby Catalent will provide support for ...
Breaking Biology Technology:
Cached News: