Welcome To Website IAS

Hot news

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)


- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Website links
Vietnamese calendar
Visitors summary
 Curently online :  1
 Total visitors :  5382636

Using membrane transporters to improve crops for sustainable food production
Monday, 2013/05/27 | 08:20:15


Julian I. Schroeder1, Emmanuel Delhaize2, Wolf B. Frommer3, Mary Lou Guerinot4, Maria J. Harrison5, Luis Herrera-Estrella6,Tomoaki Horie7, Leon V. Kochian8, Rana Munns2,9, Naoko K. Nishizawa10, Yi-Fang Tsay11& Dale Sanders12


With the global population predicted to grow by at least 25 per cent by 2050, the need for sustainable production of nutritious foods is critical for human and environmental health. Recent advances showthat specialized plantmembrane transporters can be used to enhance yields of staple crops, increase nutrient content and increase resistance to key stresses, including salinity, pathogens and aluminium toxicity, which in turn could expand available arable land.


Aluminium-tolerant crops for acid soils


Acid soils comprise 30% of Earth’s ice-free land and thus constrain agricultural production, given that only a small proportion of these soils is suitable for crops. At soil pHvalues above 5, aluminiumexists in the soil in non-toxic complexed forms. However, when soils are acidic, Al ions are freed in the soil, resulting in plant toxicity. Once in the soil solution, Al damages the root tips of susceptible plants and inhibits root growth, which impairs the uptake of water and nutrients. Natural genetic variation in Al tolerance exists withinmajor cereal crops. The efflux of organic anions from roots was discovered to be a naturally occurring tolerance mechanism of several species. Transport proteins are central to thismechanism, withmembers of two families of transport proteins responsible for exporting the organic anions from inside root cells to the external medium surrounding roots. The organic anions secreted by roots chelate Al into a non-toxic form, thus protecting the sensitive tips and allowing the roots to grow unimpeded.


60 | N ATURE | VOL 497 | 2 MAY 2 013

Macmillan Publishers Limited. All rights reserved



Back      Print      View: 845

[ Other News ]___________________________________________________
  • Relative Expression of Xa7 Controls Bacterial Leaf Blight Resistance
  • Stimulating Innovation in Plant Genetic Resources, Brussels, Belgium
  • International Team Sequences Genome of Sweet Orange
  • Scientists Sequence Vietnamese Rice Genome
  • New Promising Cowpea Varieties for Africa and Rest of the World
  • NACGRAB Director: GM Crops are Safe
  • Tanzanian Stakeholders Call for Modern Cotton Production
  • 3rd International Symposium on Genomics of Plant Genetic Resources
  • Scientists Say Without Adequate Funding, Deadly Wheat Disease Could Threaten World's Food Supply
  • Researchers Find Details of Healthy Compounds in Colorful Whole Grain Rice
  • AUSVEG National Convention
  • Global Economic Benefits of GM Crops Reach Almost $100 Billion
  • Early Maturing Maize Lines Hold Drought Tolerance that could Save African Farmers
  • B4FA Releases Book on Future of Africa and Contribution of Biosciences
  • South Dakota State University Developing Drought Tolerant Wheat
  • UK Chief Scientist says GM Crops' Case Becoming Stronger
  • Global Value of Biotech Rice
  • International Team Develops Physical Map of Wheat's Wild Ancestor
  • Cassavabase, an open access database on Cassava Research
  • BTI scientist co-leads kiwifruit genome sequencing project


Designed & Powered by WEBSO CO.,LTD