Navigation Links
Engineering Nutrient-Rich Plants Made For Feasible By New Findings

Research conducted to better understand the mechanisms of micronutrient uptake, distribution, and regulation by Professor Mary Lou Guerinot has led to findings// that make engineering nutrient-rich plants, better able to grow in soils considered marginal and also increasing crop biomass in soils now in cultivation, more feasible. The findings have been presented by Guerinot at the Annual Meeting of the American Society of Plant Biologists (ASPB) in the Hynes Convention Center, Boston.

Most people rely on plants for their dietary source of micronutrients. Therefore, plants engineered to be better sources of essential elements would offer humans improved nutrition. For example, over three billion people worldwide suffer from Iron and/or Zinc deficiencies. Food consumption studies suggest that doubling the Iron in rice can increase the Iron intake of the poor by 50 percent. Rice is a staple food in many of the countries with widespread Iron deficiencies in human diets.

Guerinot's lab has previously identified the essential Iron transporter responsible for Iron uptake from the soil. This Iron transporter is IRT1. In addition to transporting iron, IRT1 can also transport Manganese, Zinc, Cobalt and Cadmium. Thus, any attempts to increase Iron uptake via IRT1 must consider the transport of unwanted substrates such as Cadmium.

Industrial, mining, and agricultural activities, particularly the excessive use of phosphate fertilizers, have led to high levels of Cadmium contamination at many locations worldwide. Utilizing DNA shuffling and heterologous expression in yeast, Guerinot and her colleagues isolated alleles of IRT1 that no longer facilitate the accumulation of Cadmium yet retain the crucial ability to transport Iron. When the engineered IRT1 alleles are expressed in plants that no longer express a wild type copy of IRT1, the engineered allele allows these plants to take up iron and renders them resistant to Cadmium. Transgenic see dlings have Cadmium levels similar to that of IRT1 loss of function plants, demonstrating that Cadmium transport through IRT1 has been eliminated. Furthermore, these plants have twice as much Iron as wild type plants when grown in the presence of Cadmium.

While the ability to quantify the amount of particular metals present in various plant tissues has proved very informative, Guerinot said she and her colleagues would also like to be able to see where the metals are distributed within various plant organs.

"We have used X-ray fluorescence microtomography to determine, in vivo, the spatial distribution of metals in Arabidopsis seed. Examination of various mutants is shedding light on which transporters influence the distribution of important nutrients such as Iron in the seed. Such information should aid the development of nutrient-rich seed, beneficially affecting human nutrition and health. This research should also lead to agronomic benefits such as increased seedling vigor, higher crop yields and resistance to disease," Guerinot said.

Source: Eurekalert
'"/>




Related medicine news :

1. Mixed Opinion Regarding Common Medical And Engineering Entrance Test
2. Medical And Engineering Students Take Out Rally
3. Tissue Engineering for Craniofacial Reconstruction
4. Imported Plants Could Deadly Harbor Mosquitoes, Says Report
5. Jharkhand Govt Tie Up With Ramdev To Preserve Rare Herbal Plants
6. Plants have ability to significantly lower LDL cholesterol through sterol pills
7. 3-D Imaging For Monitoring Reactor Systems, Power Plants
8. Call To Protect Traditional Knowledge Of African Medicinal Plants
9. Yellow Oleander Plants Fuels Suicide Rates In Sri Lanka
10. ICMR To Develop Drugs From Medicinal Plants
11. Latest Findings On The Deadly Disease - SARS
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/12/2017)... ... October 12, 2017 , ... The ... demand of today’s consumer and regulatory authorities worldwide. From Children’s to Adults 50+, ... to meet the highest standard. , These products are also: Gluten Free, ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of Medical ... Friedman, PhD, FACMI, during the Opening Session of AMIA’s Annual Symposium in Washington, D.C. ... honor of Morris F. Collen, a pioneer in the field of medical informatics, this ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... drug delivery system that we intend to develop to enable prevention of a ... lead to severe hearing loss, especially in pediatric patients. For cisplatin, hearing loss ...
(Date:10/12/2017)... , ... October 12, 2017 , ... HMP , ... recipient of a 2017 Folio Magazine Eddie Digital Award for ‘Best B-to-B Healthcare Website.’ ... on October 11, 2017. , The annual award competition recognizes editorial and design excellence ...
(Date:10/12/2017)... ... 2017 , ... On Saturday, October 21, the Health & Wellness Center at ... raise money for the American Heart Association Heart Walk. Teams of up to 10 ... to keep their treadmills moving for 5 hours. Treadmills will start at 7:00 p.m. ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)...  True Health, a leader in integrated diagnostics ... National Breast Cancer Awareness month to educate doctors ... Research recently published in ... than 10 million American women are at significant ... BRCA2 and have not had testing. These mutations can ...
(Date:10/5/2017)...  In response to the nationwide opioid epidemic, ... (AAOMS) released prescribing recommendations that urge ibuprofen – ... a first-line therapy to manage a patient,s acute ... Recognizing the value and importance of the ... Acute and Postoperative Pain Management" stresses that practitioners ...
(Date:10/2/2017)... INDIANAPOLIS , Oct. 2, 2017  Eli Lilly ... its financial results for the third quarter of 2017 ... a conference call on that day with the investment ... performance. The conference call will begin at ... public can access a live webcast of the conference ...
Breaking Medicine Technology: