Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

X-ray analysis could boost legumes, thus reducing fertilizer pollution

24.04.2013
The overuse of nitrogen fertilizers in agriculture can wreak havoc on waterways, health and the environment.
An international team of scientists aims to lessen the reliance on these fertilizers by helping beans and similar plants boost their nitrogen production, even in areas with traditionally poor soil quality.

Researchers from the Center of Plant Genomics and Biotechnology at the Technical University of Madrid (UPM) and the Advanced Photon Source (APS) at the U.S. Department of Energy’s Argonne National Laboratory report as an advance article April 5 for the Metallomics journal of The Royal Society of Chemistry on how to use X-ray analysis to map a path to increasing the amount of nitrogen that legumes deposit into the soil.

Cultivation of legumes, the plant family that includes peas, beans, alfalfa, soybeans, and peanuts, is one of the main ways farmers add natural nitrogen to agricultural fields. Rotating bean and corn crops to take advantage of the nitrogen beans deposit in the soil has long been a global farming tradition. Legumes use iron in the soil to carry out a complex chemical process called nitrogen fixation, which collects atmospheric nitrogen and converts it into organic forms that help the plant grow. When the plant dies, the excess nitrogen is released back into to the soil to help the next crop.

But often legumes are grown in areas with iron-depleted soil, which limits their nitrogen fixation. That’s where research can lend a hand. The Argonne-UPM team has created the world’s first model for how iron is transported in the plant’s root nodule to trigger nitrogen fixation. This is the first step in modifying the plants to maximize iron use.

“The long-term goal is to help sustainable agriculture practices and further diminish the environmental damage from overuse of nitrogen fertilizers,” said Manuel Gonzalez-Guerrero, lead author of the paper from UPM. “This can be done by maximizing the delivery of essential metal oligonutrients to nitrogen-fixing rhizobia.”

The research team, which included Lydia Finney and Stefan Vogt from the APS, used high-energy X-rays from the 8-BM and 2-ID-E beamlines of the APS to track the distribution of minute iron amounts in the different developmental regions of rhizobia-containing roots. This is the first high-energy X-ray analysis of plant-microbe interactions.

X-rays, such as those from the APS, provided a high sensitivity to elements and a high spatial resolution not attainable by other means. Full details can be found in the paper Iron distribution through the developmental stages of Medicago truncatula nodules.

In future studies at the APS, Gonzalez-Guerrero hopes to identify and characterize the key biological proteins responsible for iron transportation. That would give researchers targets to manipulate and screen for new legume varieties with increased nitrogen-fixation capabilities and higher nutritional value.

The Centre for Plant Biotechnology and Genomics (CBGP) is a joint Technical University of Madrid (UPM) and Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA) research centre. It was created in 2005 with a double goal: to carry out the most advanced research aimed at understanding plant function, and to contribute to fulfil the needs of the economic agents within the agriculture, forestry and environment productive sectors that are potential users of this research. CBGP also has an educational role and is a reference centre for training of both scientists and technicians in the fields of plant biotechnology and genomics. Fully operative from 2008 with the opening of the new headquarters, more than 150 researchers and technicians organized into 24 research groups work there. It’s located in UPM Montegancedo Campus which recently won recognition of International Campus of Excellence.

The Advanced Photon Source at Argonne National Laboratory is one of five national synchrotron radiation light sources supported by the U.S. Department of Energy’s Office of Science to carry out applied and basic research to understand, predict, and ultimately control matter and energy at the electronic, atomic, and molecular levels, provide the foundations for new energy technologies, and support DOE missions in energy, environment, and national security. To learn more about the Office of Science X-ray user facilities, visit the user facilities directory.

Argonne National Laboratory seeks solutions to pressing national problems in science and technology. The nation's first national laboratory, Argonne conducts leading-edge basic and applied scientific research in virtually every scientific discipline. Argonne researchers work closely with researchers from hundreds of companies, universities, and federal, state and municipal agencies to help them solve their specific problems, advance America's scientific leadership and prepare the nation for a better future. With employees from more than 60 nations, Argonne is managed by UChicago Argonne, LLC for the U.S. Department of Energy's Office of Science.

Tona Kunz | EurekAlert!
Further information:
http://www.anl.gov

More articles from Agricultural and Forestry Science:

nachricht How much drought can a forest take?
20.01.2017 | University of California - Davis

nachricht Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>