Navigation Links
What recognizes what in plant disease resistance?

Plants have an immune system that resists infection, yet 10% of the world's agricultural production is lost annually to diseases caused by bacteria, fungi, and viruses. Understanding how disease resistance works may help combat this scourge.

In a new study published online this week in the open-access journal PLoS Biology, Tessa Burch-Smith, Savithramma Dinesh-Kumar, and colleagues show how one aspect of the plant immune system is defined by the gene-for-gene hypothesis: a plant Resistance (R) gene encodes a protein that specifically recognizes and protects against one pathogen or strain of a pathogen carrying a corresponding Avirulence (Avr) gene.

In tobacco and its relatives, the N resistance protein confers resistance to infection by the Tobacco mosaic virus (TMV). The authors used N, and the TMV Avirulence gene, p50, to investigate the mechanism of gene-for-gene resistance. Contrary to current models, which propose that recognition of resistance genes occurs solely through their leucine-rich repeat domain, the authors show that association is mediated by a completely different region on N's Toll-interleukin-1 receptor homology domain, which is structurally similar to animal innate immunity molecules. These findings provide novel insights into how R proteins recognize pathogen Avr proteins and should help in long-term efforts to enhance crop yield.


Source:Public Library of Science

Page: 1

Related biology news :

1. Mimicking how the brain recognizes street scenes
2. New details on how the immune system recognizes influenza
3. Key molecule in plant photo-protection identified
4. Transplantation Of Monkey Embryonic Stem Cells Reverses Parkinson Disease In Primates
5. Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa
6. Circles Of DNA Might Help Predict Success Of Stem Cell Transplantation
7. Antibodies from plants protect against anthrax
8. New RNA polymerase discovered in plants
9. Implanted Devices Detect High-Risk Heart Failure Patients
10. Ophthalmologists implant five patients with artificial silicon retina microchip
11. World-first Living Donor Islet Cell Transplant A Success; Procedure Offers Promise For Diabetics
Post Your Comments:

(Date:10/29/2015)... BOSTON , Oct. 29, 2015  Connected health ... phenomena driving the explosion of technology-enabled health and wellness, ... his new book, The Internet of Healthy ... apps, sensors or smartphones even existed, Dr. Kvedar, vice ... model of health care delivery, moving care from the ...
(Date:10/27/2015)... , October 27, 2015 ... Semantic Gaze Mapping technology (ASGM) automatically maps data from ... Tracking Glasses , so that they can be ... --> Munich, Germany , October 28-29, ... maps data from mobile eye tracking videos created with ...
(Date:10/26/2015)... 2015  Delta ID Inc., a company focused on ... PC devices, announced its ActiveIRIS® technology powers the iris ... launched by NTT DOCOMO, INC in Japan ... smartphone to include iris recognition technology, after a very ... in May 2015, world,s first smartphone to have this ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... ... , ... The Academy of Model Aeronautics (AMA), led by its Executive Council, ... Grand Prix, to represent the First–Person View (FPV) racing community. , FPV racing has ... type of racing and several new model aviation pilots have joined the community because ...
(Date:11/24/2015)... 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ:  AEZS) ... remaining 11,000 post-share consolidation (or 1,100,000 pre-share consolidation) ... B Warrants") subject to the previously disclosed November ... 2015, which will result in the issuance of ... the issuance of such shares, there will be ...
(Date:11/24/2015)... ... 2015 , ... Creation Technologies would like to extend our ... Technology Fast 500 list of the fastest growing companies in North America. , ... device that speeds up orthodontic tooth movement by as much as 50 percent. ...
(Date:11/24/2015)... -- PDL BioPharma, Inc. (PDL) (NASDAQ: PDLI ) today announced ... chief executive officer, will present at the 27 th ... New York City . The presentation will be webcast ... 9:30 a.m. EST. and go to ... 15 minutes prior to the presentation to allow for any ...
Breaking Biology Technology: