Navigation Links
Pathogen virulence proteins suppress plant immunity
Date:4/21/2008

Blacksburg, Va. Researchers from the Virginia Bioinformatics Institute (VBI) at Virginia Tech and their colleagues have identified a key function of a large family of virulence proteins that play an important role in the production of infectious disease by the plant pathogen Phytophthora sojae.

VBI Professor Brett Tyler and members of his research group, along with researchers from Virginia Techs Department of Plant Pathology, Physiology and Weed Science, Nanjing Agricultural University in China, and Wageningen University in The Netherlands, examined the function of the virulence (or effector) protein Avr1b in P. sojae and discovered that Avr1b is capable of suppressing an important process in plant immunity called programmed cell death. Programmed cell death is an in-built suicide mechanism that kills infected plant tissue and fills it with toxins so the pathogen can no longer feed on it. The work appears in the advance online edition of The Plant Cell. (1)

P. sojae is an oomycete plant pathogen that causes severe damage to soybean crops, resulting in $1-2 million in annual losses for commercial farmers in the United States and much more worldwide. By changing key amino acid residues in the effector protein, the researchers were able to attribute the cause of the suppression of programmed cell death to the presence of two conserved sequences (dubbed W and Y motifs) at one particular end of the protein, the C-terminus. These amino acid sequences are also present in many other members of a huge virulence gene superfamily that Tylers group found recently in oomycete pathogens. (2)

According to VBI Professor Brett Tyler, Our results suggest that, like many human viruses such as HIV, oomycete plant pathogens disable the immune systems of their victims as part of their infection strategy.


'/>"/>
Contact: Susan Bland
subland@vbi.vt.edu
540-231-7912
Virginia Tech
Source:Eurekalert

Page: 1

Related biology news :

1. Understanding, combating foodborne pathogens E. coli 0157 and salmonella
2. New magnetic separation technique might detect multiple pathogens at once
3. New system would use rotating magnetic field to detect pathogens
4. K-State specialist in tick-borne pathogens receives $1.8 million grant
5. Pathogens use previously undescribed mechanism to sabotage host immune system
6. Can interacting pathogens explain disease patterns?
7. Breakthrough research turns the tide on water-borne pathogen
8. Tomato pathogen genome may offer clues about bacterial evolution at dawn of agriculture
9. Technology uses live cells to detect food-borne pathogens, toxins
10. Researcher discovers pathway plants use to fight back against pathogens
11. Tomato pathogen genome may offer clues about bacterial evolution
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... SM announced today its completion of a Good ... current U.S. Food and Drug Administration (FDA) regulations. This ... smart phone application trials utilizing the highest principles for ... determined to improve global healthcare access, quality, and delivery ...
(Date:12/17/2014)... , Dec. 16, 2014 Research and Markets ... "Global Chemical Sensor Market 2015-2019" report to ... One major trend upcoming in this market ... applications. Chemical sensors help in recording of patient data ...
(Date:12/15/2014)... Dec. 12, 2014 Research and Markets ( ... "Global Facial Recognition Market 2015-2019" report to their ... Facial recognition is a technology used for the ... facial feature of a person such as nose, jaw ...
Breaking Biology News(10 mins):HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3
... the tropical ocean coastlines, are far more important to ... the foul-smelling muddy forests may not have the scientific ... of researchers has noted that the woody coastline-dwelling plants ... carbon that is supplied to the global ocean from ...
... blubber falls below average levels may be at higher risk ... enough fat in their diets later on, according to a ... at Experimental Biology 2006. , The study found that harbor ... continued to gain weight and grow regardless of whether the ...
... transplantation performed in France spread around the world, plastic ... first full facial transplantation a reality. , In the ... surgeons demonstrated how to successfully complete a full facial ... the March issue of Plastic and Reconstructive Surgery® (PRS), ...
Cached Biology News:The critical importance of mangroves to ocean life 2Alaska seal pup diet may hold key to decline of population 2Alaska seal pup diet may hold key to decline of population 3Alaska seal pup diet may hold key to decline of population 4Plastic surgeons countdown first full facial transplantation 2
(Date:12/24/2014)...   BioLife Solutions , Inc. (NASDAQ: BLFS ), ... hypothermic storage and cryopreservation freeze media ... tissues  ("BioLife" or the "Company"), today announced that it will ... 2015 (the "Annual Meeting"). Because the expected date ...
(Date:12/24/2014)... Earlier this year in a June 24 international conference presentation, ... Technology Center, LLC ( ASCTC ) focused attention on an ... stem cells. His title “Asymmetric Self-Renewal by Distributed Stem ... the essence of his message to congress participants. He ...
(Date:12/24/2014)... 2014 According to Ross Selinger, President of ... ITRA Global, the national office market continues to be strong, ... is evidenced by the third quarter’s surprising 3.9% GDP, unemployment ... energy costs have held inflation down and the Fed is ...
(Date:12/24/2014)... 2014 The report expects global cell isolation ... also provides a carefully analyzed data about the vital drivers, ... Full Copy of Report @ http://bit.ly/1yUxy0T , According ... keep witnessing growth at an impressive CAGR during near future. ...
Breaking Biology Technology:BioLife Solutions Sets Date for Annual Meeting of Stockholders 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 2The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 3
... -- The Nano Science and Technology Institute (NSTI), today ... place May 3-7, 2009 at the George R. Brown Convention ... the largest and most prominent Nanotechnology event is expected to ... Bio technology executives, who will gather to promote advanced research ...
... Allscripts announced today that,Tully-Wihr Company, in conjunction ... to resell the web-based Allscripts MyWay(TM) Electronic,Health Record ... , (Logo: http://www.newscom.com/cgi-bin/prnh/20081013/AQM041LOGO ... 1906, Tully-Wihr has been building forms management solutions,for ...
... BioCryst Pharmaceuticals, Inc. (Nasdaq: BCRX ) today announced ... Dr. William P. Sheridan, Chief Medical Officer of BioCryst, will ... Healthcare Conference on Thursday, January 15, 2009 at 7:30 a.m. ... 2009 in San Francisco.A link to a live audio Web ...
Cached Biology Technology:NSTI Announces the 12th Annual Nanotech Conference & Expo 2009 May 3-7, at the George R. Brown Convention Center in Houston, Texas 2NSTI Announces the 12th Annual Nanotech Conference & Expo 2009 May 3-7, at the George R. Brown Convention Center in Houston, Texas 3NSTI Announces the 12th Annual Nanotech Conference & Expo 2009 May 3-7, at the George R. Brown Convention Center in Houston, Texas 4Tully-Wihr Company Selects Web-Based Allscripts Electronic Health Record for 100 Northern California Physicians 2Tully-Wihr Company Selects Web-Based Allscripts Electronic Health Record for 100 Northern California Physicians 3Tully-Wihr Company Selects Web-Based Allscripts Electronic Health Record for 100 Northern California Physicians 4Tully-Wihr Company Selects Web-Based Allscripts Electronic Health Record for 100 Northern California Physicians 5BioCryst to Present at the J.P. Morgan 27th Annual Healthcare Conference 2BioCryst to Present at the J.P. Morgan 27th Annual Healthcare Conference 3