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

activity that is characteristic of proteins that act as enzymes. This finding led researchers to believe that these molecules give the early signals needed to set off a relay of biochemical events allowing the plant to fight off the pathogen, Mengiste said.

"Basically the BIK1 protein does this by regulating a plant defense hormone called salicylic acid," he said. "The amount of salicylic acid determines the type and level of a plant's response to the pathogen. This is very important in terms of disease resistance.

"In this paper, we speculate that there is an optimum level of salicylic acid that is required for pathogen defense. When that level is exceeded, in some cases it may promote susceptibility to other pathogens by interfering with other defense strategies of the plants."

The research team first looked at normal plants and then at the BIK1 mutant when they began to study the effect of different hormones on plant growth and pathogen defense, Mengiste said. The scientists were surprised to find that the mutants had reduced primary root growth but increased numbers of root hairs. Along with their other findings, this revelation is leading the scientists to future research.

"It looks like this gene actually links pathogen response to plant growth and development," Mengiste said. "But how a single protein regulates these two processes that are singularly independent, we don't know. That is the main purpose of our future studies.

"We need to figure out the details of how it regulates root growth and the length and amount of root hair. This may have implications in terms of nutrient absorption or total plant biomass."

The answers eventually could lead to increased crop yield and decreased produce loss due to Botrytis and other similar pathogens, he said.

Currently, the gray mold disease caused by Botrytis destroys about 10 percent of the grape crop annually and about 25 percent to 30 percent of tomato and str
'"/>

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:10/29/2014)... hair as a consequence of chemotherapy will benefit from ... cooling technology that prevents hair loss. , The research ... global scalp cooling manufacturing company, Paxman Coolers, of Fenay ... the University of Huddersfield. , The research will be ... background in the pharmacology of cancer treatment, which he ...
(Date:10/29/2014)... for the Society of Interventional Radiology,s (SIR) ... the one place where interventional radiologists, diagnostic ... professionals can come together to find the ... presented, discussed and tested. , "Connecting ... medicine, SIR 2015 will feature essential updates ...
(Date:10/29/2014)... industrial products are in the environment – and hundreds ... scientists have yet to determine whether they cause health ... that by estimating which substances people are exposed to ... ACS journal Environmental Science & Technology . , ... to human health of any given substance depend primarily ...
Breaking Biology News(10 mins):New technology on the way to aid cancer suffers who lose their hair after chemotherapy 2SIR 2015: Interventional radiology shapes tomorrow's medicine 2
(Date:10/31/2014)... This is a professional and in-depth ... The report provides basic biocides information, including its ... well as industry overview. This research covers the ... well as Global industry analysis covering macroeconomic environment ... Chinese biocides industry covers information on ...
(Date:10/31/2014)... ENVIRON , an international ... that Dr. Harvey Clewell III has rejoined the ... closely with senior professionals in ENVIRON’s Health Sciences ... at The Hamner Institutes for Health Sciences (The ... he is Director, Center for Human Health Assessment. ...
(Date:10/31/2014)... , Oct. 31, 2014  Atlanta-based Intellimedix could ... accompanying the onset of Ebola by suggesting a ... at Georgia Tech,s Center for Computational Systems Biology ... to find alternative uses for existing drugs through ... to aid the bout against Ebola. ...
(Date:10/30/2014)... 30, 2014  Ardelyx, Inc. (NASDAQ: ... cardio-renal, gastrointestinal and metabolic diseases, today announced that ... on Thursday, November 6, 2014. Following the announcement, ... conference call and webcast at 4:30pm ET to ... business update. The live webcast can ...
Breaking Biology Technology:Biocides Market for International & Chinese Regional Development Analysis Now Available at DeepResearchReports.com 2Biocides Market for International & Chinese Regional Development Analysis Now Available at DeepResearchReports.com 3Internationally recognized health scientist Dr. Harvey Clewell renews association with ENVIRON 2Internationally recognized health scientist Dr. Harvey Clewell renews association with ENVIRON 3Atlanta-Based Intellimedix May Help Solve Ebola With Computer Algorithms 2Ardelyx to Report Third Quarter 2014 Financial Results on November 6, 2014 2
Cached News: