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)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
(Date:4/5/2017)... YORK , April 5, 2017 Today ... is announcing that the server component of the HYPR ... known for providing the end-to-end security architecture that empowers ... HYPR has already secured over 15 million ... makers including manufacturers of connected home product suites and ...
(Date:3/30/2017)...  On April 6-7, 2017, Sequencing.com will host the ... hackathon at Microsoft,s headquarters in Redmond, Washington ... developing health and wellness apps that provide a unique, ... is the first hackathon for personal genomics and ... in the genomics, tech and health industries are sending ...
Breaking Biology News(10 mins):
(Date:10/9/2017)... 9, 2017  BioTech Holdings announced today identification ... its ProCell stem cell therapy prevents limb loss ... Company, demonstrated that treatment with ProCell resulted in ... as compared to standard bone marrow stem cell ... in reduction of therapeutic effect.  ...
(Date:10/9/2017)... ... October 09, 2017 , ... The Giving Tree Wellness Center ... the needs of consumers who are incorporating medical marijuana into their wellness and ... , As operators of two successful Valley dispensaries, The Giving Tree’s two founders, ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... its ProxiMeta™ Hi-C metagenome deconvolution product, featuring the first commercially available Hi-C ... software to perform Hi-C metagenome deconvolution using their own facilities, supplementing the ...
(Date:10/6/2017)... ... 06, 2017 , ... On Tuesday, October 24th, ABC² (Accelerate ... first-ever adaptive clinical trial for glioblastoma (GBM). The featured speaker will be Dr. ... open to the public, but registration is required. , WHAT: ABC² Brain ...
Breaking Biology Technology: