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:6/23/2020)... ... ... The field of quantitation of large molecules or proteins has been around for a ... of mass spectrometry in this field has gained a lot of momentum in the ... approach to use (LBA or MS)?” In many cases, either technology can answer ...
(Date:6/23/2020)... ... ... In its June 22 online post, business and technology news platform Superb Crew ... and director of stem cell biotechnology company Asymmetrex . Superb Crew decided to ... 5 it would begin offering free tissue stem cell counting at its ...
(Date:6/19/2020)... ... June 18, 2020 , ... ... Software for Data Decisions,” for pharmaceutical and biotech executives, laboratory managers, scientists, ... cutting-edge scientific instruments and laboratory equipment from dozens of manufacturers into their ...
Breaking Biology News(10 mins):
(Date:7/10/2020)... , ... July 09, 2020 , ... ... cell therapy, today announced the hiring of Allen R. Nissenson, M.D., F.A.C.P., as ... oversee the clinical development of Sentien’s lead product, SBI-101. Dr. Nissenson serves ...
(Date:7/1/2020)... ... June 30, 2020 , ... ... today announced that the launch of a new clinical diagnostics immuno-oncology ... the tumor microenvironment (TME). , “Flagship’s TissueInsight is a service that aids ...
(Date:6/23/2020)... ... June 23, 2020 , ... ... to unique lab-made bioresearch materials, today announced the availability of the Delta-G-VSV Pseudotyping ... at University of Tennessee, enables studies of SARS-CoV-2 viral entry and COVID-19 vaccine ...
(Date:6/19/2020)... PETERSBURG, Russia (PRWEB) , ... June 18, 2020 , ... ... in 2018. Its goal is to join forces to radically prolong life and find ... significantly postpone the aging period. This project was supported by various scientists from all ...
Breaking Biology Technology:
Cached News: