Featured Research

from universities, journals, and other organizations

Sowing Seed On Salty Ground

Date:
June 8, 2007
Source:
European Molecular Biology Organization
Summary:
Salty soil caused by irrigation practices in arid regions has become a major agricultural problem. Scientists investigated a sodium transporter called OsHKT2;1 in the roots of rice plants. Their results provide evidence that this transporter has capabilities previously thought to exist but not genetically validated in plants before. Under salt stress, when sodium levels are too high, OsHKT2;1 transport is shut off, protecting the plant from accumulating too much sodium.

Scientists have discovered a gene that allows plants to grow better in low nutrient conditions and even enhance their growth through sodium uptake, according to a report published online in The EMBO Journal.

Salty soil caused by irrigation practices in arid regions has become a major agricultural problem -- not only in India, China and African countries, but also around the Mediterranean and in dry regions of the USA, such as California. This is only expected to get worse in forthcoming years, as climate change leads to desertification.

Julian Schroeder and coworkers investigated a sodium transporter called OsHKT2;1 in the roots of rice plants. Their results provide evidence that this transporter has capabilities previously thought to exist but not genetically validated in plants before. Under salt stress, when sodium levels are too high, OsHKT2;1 transport is quickly shut off, protecting the plant from accumulating too much sodium before it can become toxic.

In addition, the authors found that sodium can also have beneficial effects under nutrient poor conditions. On soils where little nutritional potassium is available, a common problem after many years of agricultural production, plants can take up sodium through the OsHKT2;1 transporter to replace some of the functions of potassium and actually enhance growth. This improvement of our understanding of how plants regulate salt uptake in their roots may help to eventually find a solution to reducing the impact of soil salinity on agricultural productivity.


Story Source:

The above story is based on materials provided by European Molecular Biology Organization. Note: Materials may be edited for content and length.


Cite This Page:

European Molecular Biology Organization. "Sowing Seed On Salty Ground." ScienceDaily. ScienceDaily, 8 June 2007. <www.sciencedaily.com/releases/2007/06/070606113412.htm>.
European Molecular Biology Organization. (2007, June 8). Sowing Seed On Salty Ground. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2007/06/070606113412.htm
European Molecular Biology Organization. "Sowing Seed On Salty Ground." ScienceDaily. www.sciencedaily.com/releases/2007/06/070606113412.htm (accessed August 1, 2014).

Share This




More Plants & Animals News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Visitors Feel Part of the Pack at Wolf Preserve

Visitors Feel Part of the Pack at Wolf Preserve

AP (July 31, 2014) Seacrest Wolf Preserve on the northern Florida panhandle allows more than 10,000 visitors each year to get up close and personal with Arctic and British Columbian Wolves. (July 31) Video provided by AP
Powered by NewsLook.com
Florida Panther Rebound Upsets Ranchers

Florida Panther Rebound Upsets Ranchers

AP (July 31, 2014) With Florida's panther population rebounding, some ranchers complain the protected predators are once again killing their calves. (July 31) Video provided by AP
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
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:
from the past week

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