Navigation Links
Findings may advance iron-rich, cadmium-free crops
Date:6/11/2014

ITHACA, N.Y. With news reports of toxic, cadmium-tainted rice in China, a new study describes a protein that transports metals in certain plants and holds promise for developing iron-rich but cadmium-free crops.

Iron and cadmium are both found in soil and are interchangeably taken up by iron transporters in plants. Pollution and heavy fertilizer use have increased soil cadmium levels in China, for example. In humans, cadmium can damage internal organs and cause cancer. At the same time, iron is an essential nutrient for plants and humans. Iron deficiency affects 30 percent of the world's population, particularly in developing countries.

The Cornell-led study, published in The Plant Cell, describes an important role of a protein that transports nutrients OPT3 in maintaining balance of the essential micronutrient iron in Arabidopsis, small plants related to cabbage and mustard that are used as models for studying plant biology.

OPT3 function in plants was previously unknown. The new work finds that OPT3 transports iron and is involved in signaling iron concentrations from leaves to roots to regulate how much iron from the soil is needed by the plant. This function allows the plant to partition cadmium away from the edible portions of plants, including seeds (grain).

"One would hope that this transporter can be used to produce iron-fortified rice and other grain crops one day," said Olena Vatamaniuk, associate professor of crop and soil sciences, and the paper's senior author. "Our work suggests that manipulation of the expression of OPT3 can provide promising avenues for targeted biofortification strategies directed at increasing iron density, while omitting cadmium, in the edible portions of crops."


'/>"/>

Contact: Melissa Osgood
mmo59@cornell.edu
607-255-2059
Cornell University
Source:Eurekalert

Page: 1

Related biology news :

1. Researchers shut down a SARS cloaking system; findings could lead to SARS, MERS vaccines
2. Pioneering findings on the dual role of carbon dioxide in photosynthesis
3. Research findings link post-heart attack biological events that provide cardioprotection
4. Findings point to potential treatment for virus causing childhood illnesses
5. Findings bolster fibers role in colon health
6. New breast cancer stem cell findings explain how cancer spreads
7. Spinal cord findings could help explain origins of limb control
8. Findings announced from landmark study on safety of adolescent bariatric surgery
9. Reassuring findings released in national study of influenza vaccine safety in pregnancy
10. New findings on tree nuts and health presented at the Experimental Biology Meeting in Boston, Mass.
11. Surprising findings on hydrogen production in green algae
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/29/2016)... CANNES, France , November 29, 2016 Nearly ... Continue Reading ... ... System is part of an efficient Identity Management. (PRNewsFoto/DERMALOG Identification Systems) ... DERMALOG is Germany's largest Multi-Biometric ...
(Date:11/21/2016)...   Neurotechnology , a provider of high-precision ... that the MegaMatcher On Card fingerprint matching algorithm ... NIST Minutiae Interoperability Exchange (MINEX) III ... of the evaluation protocol. The ... fingerprint templates used to establish compliance of template ...
(Date:11/15/2016)... , Nov. 15, 2016  Synthetic Biologics, ... developing therapeutics focused on the gut microbiome, today ... of 25,000,000 shares of its common stock and ... stock at a price to the public of ... to Synthetic Biologics from the offering, excluding the ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... ... December 01, 2016 , ... ACEA Biosciences, Inc. announced ... I/II clinical trials for AC0010 at the World Conference on Lung Cancer 2016, taking ... update on the phase I/II clinical trials for AC0010 in patients with advanced non-small ...
(Date:12/2/2016)... ... December 01, 2016 , ... The Conference Forum has announced ... days and will take place on February 1-3, 2017 at the Roosevelt Hotel in ... (NCI), the program provides a unique 360-degree approach, which addresses the most up-to-date information ...
(Date:12/2/2016)... ... 2016 , ... Robots will storm the Prudential Center in Boston, MA during ... which is held on the United Nations International Day of Persons with Disabilities, will ... workplace. Suitable Technologies is partnering with NTI to showcase how technology can help individuals ...
(Date:11/30/2016)... ... November 30, 2016 , ... BEI Kimco, a brand of ... flexure design that ensures high alignment accuracy by preventing unwanted shaft rotation. The ... where extreme precision is required, such as in medical equipment, laboratory instrumentation, clean ...
Breaking Biology Technology: