HOME >> BIOLOGY >> NEWS
Dartmouth study contributes to research addressing malnutrition and iron deficiency

HANOVER, NH -- Dartmouth biologists are leading a research team that has learned where and how some plant seeds store iron, a valuable discovery for scientists working to improve the iron content of plants. This research helps address the worldwide issue of iron deficiency and malnutrition. Their findings were published online on Nov. 2 at ScienceExpress, the advance publication site for the journal Science.

The team found that iron is stored in the developing vascular system of the seed of Arabidopsis, a model plant used in research; in particular, iron is stored in the vacuole, a plant cell's central storage site. The researchers also learned that this localization is dependent on a protein called VIT1, shown to transport iron into the vacuole.

Dartmouth Professor of Biological Sciences Mary Lou Guerinot, the principal investigator on the study, says, "Iron deficiency is the most common human nutritional disorder in the world today, afflicting more than three billion people worldwide. Most of these people rely on plants for their dietary iron. However, plants are not high in iron, and the limited availability of iron in the soil can limit plant growth. Our study certainly suggests that iron storage in the vacuole is a promising and, before now, largely unexplored target for increasing the iron content of seeds. Such nutrient-rich seed would benefit both human health and agricultural productivity."

The researchers combined traditional mutant analysis (turning on and off the VIT1 protein) with a powerful X-ray imaging technique to create a map of where iron is localized in the seed. Guerinot was surprised by the finding because most studies on iron storage focus on the protein ferritin. This paper reveals how important it is to look beyond ferritin to understand how iron is stored by plants. The researchers say that their study suggests that the stored iron in the vacuole is an important source of iron for developing seedlings. See
'"/>

Contact: Sue Knapp
Sue.Knapp@Dartmouth.edu
603-646-3661
Dartmouth College
2-Nov-2006


Page: 1 2

Related biology news :

1. Dartmouth professor makes case for ethically universal stem cell lines
2. Plants that produce more vitamin C may result from UCLA-Dartmouth discovery
3. Vitamin extends life in yeast, Dartmouth Medical School researchers find
4. Dartmouth researchers find that arsenic triggers unique mechanism in rare leukemia
5. Dartmouth researchers find that low doses of arsenic have broad impact on hormone activity
6. Dartmouth researchers identify a gene that enhances muscle performance
7. Genetic variation impacts aspirins effectiveness in preventing colon cancer, Dartmouth study finds
8. Dartmouth researchers find a neural signature of bilingualism
9. Dartmouth and GlycoFi report full humanization of therapeutic proteins from yeast
10. GlycoFi and Dartmouth report full humanization of yeast glycosylation pathway in Science
11. Dartmouth researchers find key player in immune system regulation

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/22/2016)... 2016  The American College of Medical Genetics and Genomics ... as one of the fastest-growing trade shows during the ... Bellagio in Las Vegas . ... growth in each of the following categories: net square feet ... of attendees. The 2015 ACMG Annual Meeting was ranked 23 ...
(Date:6/22/2016)... -- On Monday, the Department of Homeland Security (DHS) ... for the Biometric Exit Program. The Request for Information ... explains that CBP intends to add biometrics to confirm ... States , in order to deter visa overstays, ... Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
(Date:6/20/2016)... , June 20, 2016 Securus ... justice technology solutions for public safety, investigation, corrections ... the prisons involved, it has secured the final ... (DOC) facilities for Managed Access Systems (MAS) installed. ... additional facilities to be installed by October, 2016. ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... Brooklyn, NY (PRWEB) , ... June 24, 2016 , ... ... 15mm, machines such as the Cary 5000 and the 6000i models are higher end ... height is the height of the spectrophotometer’s light beam from the bottom of the ...
(Date:6/23/2016)... , June 23, 2016 /PRNewswire/ - FACIT ... Ontario biotechnology company, Propellon Therapeutics ... development and commercialization of a portfolio of first-in-class ... Epigenetic targets such as WDR5 represent an exciting ... significantly in precision medicine for cancer patients. Substantial ...
(Date:6/23/2016)... 2016  The Biodesign Challenge (BDC), a university competition ... harness living systems and biotechnology, announced its winning teams ... New York City . The ... projects at MoMA,s Celeste Bartos Theater during the daylong ... senior curator of architecture and design, and Suzanne ...
(Date:6/23/2016)... 2016 Apellis Pharmaceuticals, Inc. today announced ... of its complement C3 inhibitor, APL-2. The trials ... dose studies designed to assess the safety, tolerability, ... in healthy adult volunteers. Forty subjects ... single dose (ranging from 45 to 1,440mg) or ...
Breaking Biology Technology:
Cached News: