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:4/11/2017)... BROOKLYN, N.Y. , April 11, 2017 /PRNewswire-USNewswire/ ... identical fingerprints, but researchers at the New York ... University College of Engineering have found that partial ... fingerprint-based security systems used in mobile phones and ... previously thought. The vulnerability lies in ...
(Date:4/6/2017)... , April 6, 2017 ... RFID, ANPR, Document Readers, by End-Use (Transportation & Logistics, ... Facility, Oil, Gas & Fossil Generation Facility, Nuclear Power), ... Educational, Other) Are you looking for a ... sector? ...
(Date:4/5/2017)... -- Today HYPR Corp. , leading innovator in ... the HYPR platform is officially FIDO® Certified . ... that empowers biometric authentication across Fortune 500 enterprises and ... 15 million users across the financial services industry, however ... suites and physical access represent a growing portion of ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... Angeles, CA (PRWEB) , ... ... ... Inc., a development-stage cancer-focused pharmaceutical company advancing targeted antibody-drug conjugate (ADC) therapeutics, ... uses of targeted HPLN (Hybrid Polymerized Liposomal Nanoparticle), a technology developed in ...
(Date:10/10/2017)... ... October 10, 2017 , ... Dr. Bob Harman, founder and ... San Diego Rotary Club. The event entitled “Stem Cells and Their ... 300+ attendees. Dr. Harman, DVM, MPVM was joined by two human doctors: Peter ...
(Date:10/10/2017)... , Oct. 10, 2017 SomaGenics announced ... the NIH to develop RealSeq®-SC (Single Cell), expected to ... profiling small RNAs (including microRNAs) from single cells using ... highlights the need to accelerate development of approaches to ... "New techniques for measuring levels of ...
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon Program Committee ... honoring scientists who have made outstanding contributions to analytical chemistry and applied ... the world’s leading conference and exposition for laboratory science, which will be held ...
Breaking Biology Technology: