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:


(Date:6/21/2016)... 21, 2016 NuData Security announced today that ... of principal product architect and that Jon ... customer development. Both will report directly to ... moves reflect NuData,s strategic growth in its product ... customer demand and customer focus values. ...
(Date:6/16/2016)... , June 16, 2016 ... is expected to reach USD 1.83 billion by ... View Research, Inc. Technological proliferation and increasing demand ... are expected to drive the market growth. ... The development of advanced multimodal techniques ...
(Date:6/9/2016)... June 9, 2016  Perkotek an innovation leader in attendance control systems is proud ... work hours, for employers to make sure the right employees are actually signing in, ... ... ... ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... 8, 2016 Eutilex Co. Ltd. today announced ... $18.9M) Series A financing. This financing round included participation ... and SNU Bio Angel. This new funding brings the ... (US $27.7M) since its founding in 2015. ... development and commercialization of its immuno-oncology programs, expand its ...
(Date:12/8/2016)... 8, 2016   Biocept, Inc . (NASDAQ: ... of clinically actionable liquid biopsy tests to improve ... data featuring its Target Selector™ Circulating Tumor Cell ... the detection of actionable biomarkers in patients with ... by Sara Cannon Research Institute (SCRI), the research ...
(Date:12/7/2016)... ... December 07, 2016 , ... ... concluded that “in the setting of previously treated, advanced pancreatic cancer, liquid biopsies ... the optimal patient population and timing of blood sampling may improve the value ...
(Date:12/7/2016)... Neogen Corporation (NASDAQ: NEOG ) ... as its chief science officer — a new ... at Neogen effective Jan. 1. Kephart has ... unit of Thermo Fisher Scientific, as well as animal ... extensive industry experience also includes the management of a ...
Breaking Biology Technology:
Cached News: