Navigation Links
Research team discovers new kind of signalling mechanism in plant cells
Date:6/25/2013

Plants possess receptors which are similar to the glutamate receptors in the brain of humans and animals. Biochemists at the Ruhr-Universitt Bochum (RUB) with colleagues from the University of Wrzburg and the Agricultural University of China in Beijing have discovered that these receptors do not, however, recognise the amino acid glutamate, but many other different amino acids. The team reports in the journal "Science Signaling".

Glutamate-like receptor in Arabidopsis recognises many amino acids

To exchange information, cells send out signalling molecules that are recognised by receptors of other cells. Fifteen years ago, researchers discovered glutamate-like receptors, in short GLRs, in a plant. A team led by the RUB biochemists Prof. Dr. Michael Hollmann and Dr. Daniel Tapken has now identified the respective signalling molecules for one of the, in total, 20 GLRs from the thale cress (Arabidopsis thaliana). "Surprisingly, the receptor responds not only to one amino acid, but to many different ones just not to glutamate", says Hollmann. The most effective is methionine, an amino acid that humans have to obtain from food, but which plants can produce themselves. When the research team mutated the plant so that it no longer contained the receptor AtGLR1.4, it hardly responded to methionine.

Plant receptor is an ion channel

In some respects, the receptor AtGLR1.4 behaves in a way similar to the glutamate receptors in the brain. It is a channel, so it opens activated by a signalling molecule a pore and allows various positively charged particles to flow into the cell, thus triggering an electrical signal. "A special feature of this receptor is that not all amino acids that bind to it trigger an electrical signal. On the contrary! Some suppress the signal by displacing methionine from the receptor", says Daniel Tapken.

Function of methionine receptors in plants unclear

<
'/>"/>

Contact: Dr. Michael Hollmann
michael.hollmann@rub.de
49-234-322-4225
Ruhr-University Bochum
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Research reveals first evidence of hunting by prehistoric Ohioans
3. Diabetes Research Institute develops oxygen-generating biomaterial
4. APS issues new policy requiring identification of sex or gender in reporting scientific research
5. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
6. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
7. U of Alberta researcher steps closer to understand autoimmune diseases
8. Research on flavanols and procyanidins provides new insights into how these phytonutrients may positively impact human health
9. A project to research biological and chemical aspects of microalgae to fuel approach
10. Scripps Research discoveries lead to newly approved drug for infant respiratory distress syndrome
11. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/11/2014)... --Research and Markets , ... ) has announced the addition of the ... to their offering. One major ... technology. With continuous advances in technology, it is ... standard that meets the needs and expectations of ...
(Date:12/10/2014)... , Dec. 9, 2014  Valencell, a leader in ... seeing a staggering demand from its licensees for highly ... revealed, is not solely coming from fitness and health ... "A wearable is only as useful as ... is the ultimate driver in long-term mass consumer adoption ...
(Date:12/5/2014)... , Dec. 4, 2014 Increased emphasis ... investments in new testing and inspection technologies. The ... rise to a range of innovative test solutions. ... of Generation Y, which is generally more inclined ... result, product development strategies of test equipment vendors ...
Breaking Biology News(10 mins):Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 3Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 4
... PITTSBURGH Nov. 9, 2007 Researchers at Childrens Hospital ... trial currently underway to study the effectiveness of oral insulin ... in people at risk for the disease. The researchers ... prevent or delay the onset of type 1 diabetes in ...
... will convene at the Institute of Ecosystem Studies ... future of biofuel production in the United States. ... biofuel experts, including Drs. David Pimentel (Cornell University), ... State)., Corn and soy-based ethanol have been touted ...
... barbecue knows that hot dogs are inexplicably packaged in different ... 10 hot dog buns. Put in ecological terms, this means ... are worthless without hot dogs to fill them. ... phosphorus or nitrogen limits plant production in most ecosystems. According ...
Cached Biology News:Children's Hospital studying drug with the potential to prevent/delay onset of type 1 diabetes 2Can plant-based ethanol save us from our fossil fuel addiction? 2At the root of nutrient limitation, ecosystems are not as different as they seem 2At the root of nutrient limitation, ecosystems are not as different as they seem 3
(Date:12/24/2014)... PARIS and NEW YORK ... data from its open-label pilot study of mazindol in ... Design, Development and Therapy in December 2014 . ... of mazindol in children with attention deficit/hyperactivity disorder" ( ... 2014 Dec 1;8:2321-2332. eCollection 2014 ) ...
(Date:12/22/2014)... GenomeDx Biosciences today announced that a new ... genomic test for prostate cancer, was able to predict ... radical prostatectomy without adjuvant therapy. Although rapid metastasis in ... tumor genomics to identify these men who have a ... advance. The study has been published online by ...
(Date:12/19/2014)... PA (PRWEB) December 19, 2014 ... leading developer and manufacturer of needle-free injection technology, ... agreement with Immunomic Therapeutics, Inc. (“ITI”) for ITI ... device with its LAMP™ vaccine platform. , ... an exclusive Worldwide license to the Biojector®-2000 that ...
(Date:12/19/2014)... CITY, Calif. , Dec. 19, 2014 Bina ... , USA) announced today that they have been acquired ... 1,2 is a privately held company that provides ... of next generation sequencing (NGS) data for the academic ... the Roche Sequencing Unit, and will continue to focus ...
Breaking Biology Technology:Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3Study Published in European Urology Shows that the Decipher Prostate Cancer Classifier is Predictive of Rapid Metastasis in High-Risk Men who have had Prostate Surgery 2Study Published in European Urology Shows that the Decipher Prostate Cancer Classifier is Predictive of Rapid Metastasis in High-Risk Men who have had Prostate Surgery 3Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 3Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... Neurosciences, Inc. (OTCBB:ILNS), a biopharmaceutical company engaged in ... for the treatment of Alzheimer,s and other neurological ... collaboration agreement with the University California, Irvine to ... vaccine candidate to induce an immune response against ...
... Conference: May 21-24, 2012 ,Exhibition: May 22-24, 2012 ,Pennsylvania ... Medical Design and Manufacturing (MD&M) East Conference have announced ... Convention Center, May 21 - 24, 2012. The conference ... dedicated to medical design and manufacturing professionals, featuring presentations ...
... CMC Biologics is a leading contract manufacturing organization (CMO) ... process development and cGMP manufacture of ... growth factors), as well as monoclonal antibodies. CMC ... characterization capabilities, expertise in continuous perfusion systems and ...
Cached Biology Technology:Intellect Neurosciences Enters Collaboration Agreement with Leading Alzheimer's Research Group at University of California Irvine to Test First in Class Dual Target Vaccine 2Intellect Neurosciences Enters Collaboration Agreement with Leading Alzheimer's Research Group at University of California Irvine to Test First in Class Dual Target Vaccine 3Intellect Neurosciences Enters Collaboration Agreement with Leading Alzheimer's Research Group at University of California Irvine to Test First in Class Dual Target Vaccine 4MD&M East 2012 to Feature FDA and Medical Technology Development Leaders 2CMC Biologics Highlights Technical Acumen at Upcoming Conferences 2CMC Biologics Highlights Technical Acumen at Upcoming Conferences 3CMC Biologics Highlights Technical Acumen at Upcoming Conferences 4CMC Biologics Highlights Technical Acumen at Upcoming Conferences 5
... Polymerase is ideal for high-fidelity amplification ... such as cloning and mutagenesis. ... proprietary enzyme preparation containing recombinant DNA ... (3'Cut Site5' exonuclease) activity. Platinum ...
... PLAU N-term Antibody This antibody is generated ... synthetic peptide selected within aa 50~150 of ... in PBS with 0.09% (W/V) sodium azide. ... G column and eluted out with both ...
...
Human interferon-beta (IFN-beta). Recognizes amino acids 30-47 of IFN-beta. No cross-reactivity with Human IFN-alpha or IFN-gamma....
Biology Products: