Featured Research

from universities, journals, and other organizations

New Research May Reduce Global Need For Nitrogen Fertilizers

Date:
June 29, 2006
Source:
Biotechnology and Biological Sciences Research Council
Summary:
Research published in the journal Nature reveals how UK and US scientists have managed to trigger nodulation in legumes, a key element of the nitrogen fixing process, without the bacteria normally necessary. This is an important step towards transferring nodulation, and possibly nitrogen fixation, to non-legume crops which could reduce the need for inorganic fertilizers. Intensive crop agriculture depends heavily on inorganic fertilisers and its production is highly energy intensive.

Dr Giles Oldroyd: BBSRC David Phillips Fellow, John Innes Centre, Norwich.
Credit: Image courtesy of Biotechnology and Biological Sciences Research Council

Research published June 29 in the journal Nature reveals how scientists at the John Innes Centre (JIC), Norwich and Washington State University, USA have managed to trigger nodulation in legumes, a key element of the nitrogen fixing process, without the bacteria normally necessary. This is an important step towards transferring nodulation, and possibly nitrogen fixation, to non-legume crops which could reduce the need for inorganic fertilizers.

Related Articles


The researchers, funded by the Biotechnology and Biological Sciences Research Council (BBSRC), the Royal Society and the US National Science Foundation, have used a key gene that legumes require to establish the interaction with the nitrogen-fixing bacteria to trigger the growth of root nodules, even in the absence of the bacteria.

The fixation of nitrogen by some plants is critical to maintaining the health of soil as it converts the inert atmospheric form of nitrogen into compounds usable by plants. Legumes, as used in this study, are an important group of plants as they have the ability to fix nitrogen – which they owe to a symbiotic relationship with nitrogen-fixing bacteria in root nodules. Legumes are often used as a rotation crop to naturally enhance the nitrogen content of soils. Scientists have been working for a number of years to understand the symbiosis between legumes and rhizobial bacteria, with the hope that one day they can transfer this trait to crop plants, the majority of which cannot fix nitrogen themselves.

Intensive crop agriculture depends heavily on inorganic fertilisers that are often used to provide nutrients particularly nitrogen that are critical for plant growth. The production of nitrogen fertilisers requires a large amount of energy and is estimated to constitute approximately 50 per cent of the fossil fuel usage of the modern agricultural process. Inorganic fertilizers also cause environmental problems associated with leeching into our water systems.

Dr Giles Oldroyd is the research leader at JIC. He said: “We now have a good understanding of the processes required to activate nodule development. The nodule is an essential component of this nitrogen fixing interaction as it provides the conditions required for the bacteria. Nodules are normally only formed when the plant perceives the presence of the bacteria. The fact that we can induce the formation of nodules in the plant in the absence of the bacteria is an important first step in transferring this process to non-legumes. If this could be achieved we could dramatically reduce the need for inorganic nitrogen fertilizers, in turn reducing environmental pollution and energy use. However, we still have a lot of work before we can generate nodulation in non-legumes.”
Professor Julia Goodfellow, Chief Executive of BBSRC, commented: “BBSRC is the principal funder of fundamental plant research in the UK and commits millions of pounds a year to furthering our understanding of basic plant biology. Such fundamental research may seem disconnected from the every day world for many people but this project shows how potentially important such science is. The findings have the potential to lead to a practical application with substantial economic impact for the UK.”


Story Source:

The above story is based on materials provided by Biotechnology and Biological Sciences Research Council. Note: Materials may be edited for content and length.


Cite This Page:

Biotechnology and Biological Sciences Research Council. "New Research May Reduce Global Need For Nitrogen Fertilizers." ScienceDaily. ScienceDaily, 29 June 2006. <www.sciencedaily.com/releases/2006/06/060629122944.htm>.
Biotechnology and Biological Sciences Research Council. (2006, June 29). New Research May Reduce Global Need For Nitrogen Fertilizers. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/2006/06/060629122944.htm
Biotechnology and Biological Sciences Research Council. "New Research May Reduce Global Need For Nitrogen Fertilizers." ScienceDaily. www.sciencedaily.com/releases/2006/06/060629122944.htm (accessed January 31, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Saturday, January 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Rare Clouds Fill Grand Canyon

Raw: Rare Clouds Fill Grand Canyon

AP (Jan. 29, 2015) For the second time in two months, a rare weather phenomenon filled the Grand Canyon with thick clouds just below the rim on Wednesday. (Jan. 29) Video provided by AP
Powered by NewsLook.com
Senate Passes Bill for Keystone XL Pipeline

Senate Passes Bill for Keystone XL Pipeline

AP (Jan. 29, 2015) The Republican-controlled Senate has passed a bipartisan bill approving construction of the Keystone XL oil pipeline. (Jan. 29) Video provided by AP
Powered by NewsLook.com
"Cloud Inversion" In Grand Canyon

"Cloud Inversion" In Grand Canyon

Reuters - US Online Video (Jan. 29, 2015) Time lapse video captures a blanket of clouds amassing in the Grand Canyon -- the result of a rare meteorological process called "cloud inversion." Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Why Researchers Say We Should Cut Back On Biofuels

Why Researchers Say We Should Cut Back On Biofuels

Newsy (Jan. 29, 2015) Biofuels aren&apos;t the best alternative to fossil fuels, according to a new report. In fact, they&apos;re quite a bad one. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins