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:6/27/2016)... Aliso Viejo, California (PRWEB) , ... June 27, 2016 , ... ... that are fully customizable inside of Final Cut Pro X," said Christina Austin - ... with another unique style. Final Cut Pro X users can now reveal ...
(Date:6/27/2016)... , ... June 27, 2016 , ... TopConsumerReviews.com recently awarded ... Eyeglasses . , Millions of individuals in the United States and Canada wear ... a way to both correct vision and make a fashion statement. Even celebrities use ...
(Date:6/26/2016)... Cary, North Carolina (PRWEB) , ... June 26, 2016 , ... ... the release of a new product that was developed to enhance the health of ... harvested for centuries. , The two main herbs in the PawPaws Cat Kidney ...
(Date:6/25/2016)... ... , ... Austin residents seeking Mohs surgery services, can now turn to Dr. ... Russell Peckham for medical and surgical dermatology. , Dr. Dorsey brings specialization to include ... in Mohs Micrographic Surgery completed by Dr. Dorsey was under the direction of Glenn ...
(Date:6/25/2016)... ... ... As a lifelong Southern Californian, Dr. Omkar Marathe earned his Bachelors in ... School of Medicine at UCLA. He trained in Internal Medicine at Scripps Green Hospital ... at the UCLA-Olive View-Cedars Sinai program where he had the opportunity to train in ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016 Research and ... Devices Medical Market Analysis 2016 - Forecast to 2022" ... The report contains up to date financial data derived ... Assessment of major trends with potential impact on the market ... of market segmentation which comprises of sub markets, regional and ...
(Date:6/23/2016)... 2016 Research and Markets has announced ... report to their offering. ... a favourable commercial environment for MedImmune to enter. The US ... will serve to drive considerable growth for effective anti-influenza medications. ... cap sales considerably, but development is still in its infancy. ...
(Date:6/23/2016)... , June 23, 2016 , ... on Thursday, July 7, 2016 , , , , LOCATION: ... , , , , EXPERT PANELISTS:  , , , ... Senior Industry Analyst, Christi Bird; Senior Industry Analyst, Divyaa Ravishankar and ... The global pharmaceutical industry is witnessing an exceptional era. ...
Breaking Medicine Technology: