HOME >> BIOLOGY >> NEWS
Gene thwarts some pathogens, gives access to others, could save crops

A single gene apparently thwarts a disease-causing invader that creates a fuzzy gray coating on flowers, fruits and vegetables. But the same gene provides access to a different type of pathogen.

A Purdue University plant molecular biologist and his collaborators in Austria and North Carolina identified the gene that helps plants recognize pathogens and also triggers a defense against disease. The gene and its defense mechanisms are similar to an immunity pathway found in people and in the laboratory research insect, the fruit fly.

As Botrytis cinerea, a pathogen that makes strawberries gray and fuzzy, tries to invade a plant, the gene BIK1 recognizes the pathogen and sets off a defensive reaction. Botrytis is a type of pathogen that can infect and obtain nutrients from dead cells on a plant and actually secretes toxic substances into plant tissue in order to gain entry. Another type of pathogen, called a biotroph, must feed on live plant cells. As a strategy to contain a pathogen, plants actually kill their own cells at the site where a biotrophic pathogen is attempting to invade.

"This gene, BIK1, makes plants resistant to pathogens such as Botrytis, but it allows biotrophic pathogens to invade," said Tesfaye Mengiste, a Purdue plant molecular biologist and assistant professor of botany and plant pathology. "The mutant plant that doesn't have BIK1 actually shows decreased immunity to two pathogens, including Botrytis. But unexpectedly, it is completely resistant to virulent strains of the biotrophic bacteria."

The study of BIK1's role in plant resistance to these two types of pathogens appeared in the January issue of the journal Plant Cell. The study also shows that the gene impacts plant growth and development as evidenced by abnormally short roots, overabundance of root hairs and wrinkly leaves on plants lacking the gene, according to the scientists.

The gene produces a protein located in the plant cell membranes and shows
'"/>

Contact: Susan A. Steeves
ssteeves@purdue.edu
765-496-7481
Purdue University
3-Feb-2006


Page: 1 2 3

Related biology news :

1. Disease damages wheat roots, thwarts water uptake
2. Infectious agent thwarts typical defense mechanisms; Sheds light on immune system function
3. NIH gives $8M to University of Pittsburgh School of Medicine for myositis research
4. Brain blood flow gives clues to treating depression
5. Immune system escape hatch gives cancer cells traction
6. Investigating Life in Extreme Environments report gives hints on facts of life
7. 5.9 million award gives UK aging research a new lease on life
8. Neuronal activity gives clues to working memory
9. Study of damaged gene gives insight into causes of mental illness
10. Human pubic lice acquired from gorillas gives evolutionary clues
11. DNA gives new perspectives to understand the mysteries of nature

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Gene thwarts some pathogens gives access others could save crops

(Date:2/5/2015)... , Jan. 28, 2015 NXT-ID, Inc. ... the "Company"), a biometric authentication company focused on the ... the upcoming RedChip Global Online CEO Conference on January ... Gino Pereira , CEO of NXT-ID will ... lead product, the Wocket smart wallet and its full ...
(Date:2/5/2015)... 30, 2015  It is gratifying to see that ... for genomic science as a means to better understand ... treatment.  I was honored to participate in today,s White ... program. Since the 1980s my teams ... the first sequenced genome of a free living organism, ...
(Date:1/22/2015)... and Markets ( http://www.researchandmarkets.com/research/4trb7t/biometrics_a ) has announced the ... report to their offering. , The ... individual is who she/he is claiming to be, and for ... unique physical characteristics, such as fingerprint, hand or palm print, ...
Breaking Biology News(10 mins):CEO of NXT-ID, Inc. to Discuss Company's Biometric Technologies at RedChip Online Conference January 29th 2CEO of NXT-ID, Inc. to Discuss Company's Biometric Technologies at RedChip Online Conference January 29th 3J. Craig Venter, Ph.D., Co-Founder and CEO, Human Longevity, Inc. (HLI) Participates in White House Precision Medicine Event 2Biometrics - A Global Market Overview 2Biometrics - A Global Market Overview 3
(Date:2/26/2015)... 2015 RURO, Inc., a leading LIMS, ... 6.2 – the latest update to the bestselling commercial-off-the-shelf ... of a quick and easy method to gain better ... version, RURO engineering has enhanced the system’s support for ... amounts of sample records. , "FreezerPro has become ...
(Date:2/26/2015)...  Dyadic International, Inc. ("Dyadic") (OTCQX: DYAI), a ... are used to develop, manufacture and sell enzymes ... biopharmaceutical and industrial enzyme industries, announced today that ... ending December 31, 2014 after market close on ... conference call that day at 5:00 p.m. Eastern ...
(Date:2/26/2015)... THOUSAND OAKS, Calif. , Feb. 26, 2015 /PRNewswire/ ... has achieved Gold Partner status in Oracle PartnerNetwork. In ... Oracle for its commitment to establish Oracle-related knowledge in ... addressing the challenges of joint customers. Originally ... allows researchers to rapidly zoom in and out of ...
(Date:2/26/2015)... SAN DIEGO , Feb. 26, 2015  Epic ... Prahalad , Ph.D. will present at the 35th Annual ... 2015 at 10:00 a.m. EST in the MIT Room, 3rd Floor. ... Copley Place Hotel in Boston, Mass. Epic is ... real-time detection of genomic and proteomic changes that occur ...
Breaking Biology Technology:RURO Releases FreezerPro® version 6.2 2Dyadic International To Announce Fourth Quarter 2014 Financial Results And Host Conference Call On Wednesday, March 11, 2015 2Dyadic International To Announce Fourth Quarter 2014 Financial Results And Host Conference Call On Wednesday, March 11, 2015 3Ceres Becomes Oracle PartnerNetwork Gold Level Partner 2Ceres Becomes Oracle PartnerNetwork Gold Level Partner 3Ceres Becomes Oracle PartnerNetwork Gold Level Partner 4Epic Sciences to Present at 35th Annual Cowen and Company Health Care Conference 2
Cached News: