Navigation Links
New Mechanism for Nutrient Uptake Discovered

Biologists at the Carnegie Institution's Department of Plant Biology have discovered a new way that plant cells govern nutrient// regulation—neighboring pore-like structures at the cell's surface physically interact to control the uptake of a vital nutrient, nitrogen. It is the first time scientists have found that the interaction of neighboring molecules is essential to this regulation. Since plants, animals, bacteria, and fungi all share similar genes for this activity, the scientists believe that the same feature could occur across species. The discovery, published in the February 11th on-line edition of Nature, has widespread potential—from understanding human diseases, such as kidney function, to engineering better crops.

"Every cell in every organism has a system for bringing in nutrition and expelling waste," explained lead author Dominique Loqué. "Some are through pore-like protein structures called transporters, which reside at the surface of the cell's outer membrane. Each pore is capable of transporting nutrients individually, so we were really surprised to find that the pores simply can't act without stimulation from their neighbors."

In earlier research the Carnegie scientists, with colleagues, identified the genes responsible for initiating nitrogen uptake in plants. That identification has helped other researchers find the relatives of these genes in a variety of species from bacteria to humans. In this study, the scientists wanted to identify how ammonium transport is regulated.

Plants import nitrogen in the form of ammonium from the soil. The researchers found that the end portion, or so-called C-terminus, of the protein Arabidopsis ammonium transporter AtAMT1;1, located at the surface of the cell membrane, acts as a switch.

"The terminus is an arm-like feature that physically grabs a neighboring short-chain molecule, binds with it, and changes the shape of itself and its neighbor thereby activating al
'"/>




Page: 1 2 3

Related medicine news :

1. Scientists Unveil Mechanism Behind Resistance to Severe Malaria
2. New Gene Silencing Mechanism To Prevent Cancer
3. Molecular Mechanism Of HIV Infecting The Healthy Cells Discovered.
4. Self-defense Mechanism of food borne bugs found
5. Specific Immune Mechanism against DNA viruses
6. A New Focus For The Mechanism Of Nerve Growth
7. Mechanism of Stem Cell Regulation Identified
8. Cancer-Killing Viruses Employ Multiple Mechanisms
9. Regulatory Mechanism for Tumor Suppressor Protein Identified
10. Study Identifies Mechanism Which May Help Tamoxifen Work Better
11. Genetic Mechanism Helps Explain Chronic Pain Disorders
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New Mechanism for Nutrient Uptake Discovered

(Date:6/2/2015)... (PRWEB) June 02, 2015 Food Lion ... its sixth annual “Thriller on the Griller” events, starting ... and South Carolina locations. Each event will raise funds ... to restoring a sense of self, restoring the family ... our military families. , Through these events, Food ...
(Date:6/2/2015)... April 8th, 2015, saw the transformation of the ... Movie Awards” EcoLuxe Lounge, a daylong event, sponsored by ... world’s top providers of ecologically sound and social conscious ... Durkin, Los Angeles’ leading producer of sustainable product placement ... premier red carpet event that makes appearances at various ...
(Date:6/2/2015)... 02, 2015 On Wednesday, May 27, 2015, ... to a top speed of 207.9 mph. In the ... to break the 200 mph mark. Jay Leno was ... upcoming episode of Jay Leno’s Garage, which will air on ... the 8.5 mile high speed oval at the Continental Tire ...
(Date:6/2/2015)... 2015 Residents looking for a new ... a more convenient location now that Coast Dental Kissimmee ... 2310 E. Irlo Bronson Memorial Highway, Suite C-106, Kissimmee, ... a mile away from its original location, and features ... patient areas with digital intraoral and panoramic x-ray system ...
(Date:6/2/2015)... June 02, 2015 The 3TVPhoenix contest, conducted ... watch the station’s 6:00 a.m. Good Morning Arizona program for ... the station’s Facebook page. , Lisa Allen of ... She plans to apply the monthly $1,000 prize to ... a stay-at-home mom, expressed her surprise and gratitude at winning, ...
Breaking Medicine News(10 mins):Health News:Food Lion to Launch “Thriller on the Griller” Events to Benefit Military Families through Hope For The Warriors® 2Health News:Food Lion to Launch “Thriller on the Griller” Events to Benefit Military Families through Hope For The Warriors® 3Health News:Choices Recovery South Bend Discusses Addiction With Rising Hollywood Star Ben Stillwell 2Health News:774 HP Hennessey Mustang Tested to 207.9 mph 2Health News:Coast Dental Office Opening In Kissimmee with Expanded Technology 2Health News:Scottsdale Resident Named $12,000 Prize Winner- Arizona Central and KTVK 3TV Phoenix Partner in Mortgage Giveaway Contest 2
... of younger patients got it after surgery , TUESDAY, March ... likely than younger ones to receive potentially life-prolonging chemotherapy following ... research indicates that those with advanced colon cancer who are ... receive chemotherapy and more likely to receive less chemotherapy even ...
... On Monday, March 22, 2010 at 1:00PM EDT ... Author!" webcast entitled "How Healthy Could a State Be." Dr. ... Emeritus Vice Chancellor for Health Sciences at the University of ... states might expect their mortality rates to be lowered if they ...
... magazine reports about cancer appear more likely to discuss aggressive ... and almost none mention end-of-life palliative or hospice care, according ... Archives of Internal Medicine, one of the JAMA/Archives journals. ... issue being released early to coincide with a JAMA ...
... March 16, 2010 A radiation therapy that uses multiple ... eliminate the primary tumor and ultimately may improve survival rates ... Southwestern Medical Center physicians who led a national clinical trial ... March 17 issue of The Journal of the American ...
... Sinai School of Medicine are presenting more than ... Cardiology (ACC) 59th annual scientific session (ACC.10) in ... World Trade Center (WTC) collapse has caused potentially ... Moline, MD, Vice Chair, Department of Preventive Medicine, ...
... ... of employees displaced by natural or man-caused disasters. , ... Spokane, WA (PRWEB) March 16, 2010 -- IT-Lifeline, ... Red Lion Hotels Corporation, will team up to provide a fully equipped facility designed ...
Cached Medicine News:Health News:Older Colon Cancer Patients Less Likely to Get Chemo 2Health News:Older Colon Cancer Patients Less Likely to Get Chemo 3Health News:Older Colon Cancer Patients Less Likely to Get Chemo 4Health News:Public Health Reports Will Host A 'Meet the Author!' Webcast Entitled 'How Healthy Could a State Be' 2Health News:Media reports may paint overly optimistic view of cancer 2Health News:Precision radiation therapy may improve survival rates of some lung cancer patients 2Health News:Mount Sinai researchers are the first to identify heart abnormalities in World Trade Center workers 2Health News:IT-Lifeline and Red Lion Hotels Offer Business Continuity Services 2
(Date:6/2/2015)... and Markets ( http://www.researchandmarkets.com/research/g5r2nj/surgical_incision ) has announced the addition of ... report to their offering. The report provides ... , Japan , Europe ... , and Rest of World. This report ... Million by the following Product Segments: Stapler Products (Internal Stapler, ...
(Date:6/2/2015)... RALEIGH, N.C. , June 2, 2015 BioDelivery ... to weather conditions, the presentation by Dr. Mark A. ... been changed to 2:30 PM Eastern time. Jefferies ... Time Grand Hyatt, New York City ... and can be accessed at www.bdsi.com .  For those ...
(Date:6/2/2015)... , June 2, 2015 Intarcia ... additional $75 million from its recently announced synthetic royalty ... to $300 million. Investors have purchased Convertible Limited Recourse ... payments equal to 2.0% of any future global net ... are fully paid. Investors also have the option, commencing ...
Breaking Medicine Technology:Surgical Incision Closures - Global Strategic Business Report 2015 2BioDelivery Sciences to Present at the Jefferies 2015 Healthcare Conference - Schedule Change 2BioDelivery Sciences to Present at the Jefferies 2015 Healthcare Conference - Schedule Change 3Intarcia Exercises Re-Opener For Its Recently Closed Royalty / Equity Convert Financing - Raising Total To $300 Million 2Intarcia Exercises Re-Opener For Its Recently Closed Royalty / Equity Convert Financing - Raising Total To $300 Million 3
... Orbitz Worldwide, Inc. (NYSE: OWW ) will host a conference call to ... on Wednesday, May 5, 2010 at 10:00 a.m. EDT ( 9:00 ... (Logo:   http://www.newscom.com/cgi-bin/prnh/20070813/AQM125LOGO ) , ... A live webcast of the call can be accessed through the Orbitz Worldwide ...
... April 26 Jazz Pharmaceuticals, Inc. (Nasdaq: JAZZ ) announced ... will present at Deutsche Bank,s 35th Annual Health Care Conference on Monday, ... InterContinental Boston Hotel in Boston, MA. , ... A live webcast of the presentation may be accessed from the ...
Cached Medicine Technology:Orbitz Worldwide, Inc. to Host First Quarter 2010 Earnings Call on May 5 2Orbitz Worldwide, Inc. to Host First Quarter 2010 Earnings Call on May 5 3
The Snap-In Snap-Out-II Tip Inserts offer a large variety of configurations....
The Optima III 45 cm line of laparoscopic hand instruments is ideal for operative laparoscopic/endoscopic procedures or when a longer instrument is needed....
Hook design lifts and separates tissue for efficient dissection. Cautery action facilitates immediate control of bleeders....
The Bair Hugger Model 505 provides safe, quiet and effective warming to patients around the world....
Medicine Products: