Navigation Links
History is key factor in plant disease virulence


Garbelotto said that other scientists hypothesized that gene regulation has an effect on plant pathogens, based on the evolutionary rates of portions of the genome that are known to have an effect on gene regulation.

"Our work provides the concrete evidence those hypotheses were correct," he said.

Researchers showed that genetically identical strains of the sudden oak death pathogen isolated from different plant hosts were strikingly different in their virulence and their ability to proliferate.

They also demonstrated that these traits were maintained long after they had been isolated from their hosts.

"We found that an identical strain placed in two different plant hosts will undergo distinct changes that will persistently affect the strain's virulence and fitness," said Takao Kasuga, a molecular geneticist with the USDA ARS and the lead author of the paper.

The implications for disease control are significant.

Scientists say that it may not be enough to know what strain of pathogens they are dealing with in order to make treatment decisions; it also may be necessary to know how the pathogen's genes are being regulated.

This study shows that gene regulation may be the result of the environments the strain inhabited before being identified.

Garbelotto uses a parallel example of a well-known human pathogen: particular strains of the H1N1 flu virus have been identified as highly virulent, so a diagnosis of one of these strains indicates to doctors that they should treat that flu aggressively.

"But, hypothetically, if you caught one of these aggressive strains of H1N1 from a guy that went to, for example, Paris, it could be 10 times more dangerous. You may never know from whom you got it, and it's even less likely that you'll be able to learn where your infector visited before passing the germ on to you."

In plants, Garbelotto said, tracking a pathogen

Contact: Cheryl Dybas
National Science Foundation

Page: 1 2 3

Related medicine news :

1. History of abandoned urban sites found stored in soil
2. Female cancer survivors have worse health behaviors than women with no cancer history
3. Lobular Breast Cancer Linked to Paternal Cancer History
4. Chronic post-traumatic stress disorder in women linked to history of rape, child abuse
5. Drinking Risky for Women With Family History of Breast Cancer: Study
6. Girls with family history of breast disease should avoid alcohol
7. More aggressive treatment not necessary for men with a family history of prostate cancer
8. Trastuzumab raises risk of heart problems in the elderly with history of heart disease or diabetes
9. Family history a risk factor for COPD
10. Family History May Predict Heart Attack More Than Stroke
11. Kids of Moms With History of Depression Seem Less Happy
Post Your Comments:
Related Image:
History is key factor in plant disease virulence
(Date:8/20/2014)... NY (PRWEB) August 20, 2014 According ... filed on August 7 in the multicounty litigation (MCL) ... (IN RE DEPUY ASR HIP IMPLANTS LITIGATION; no. BER-L-3971-11), ... MCL have been dismissed without prejudice. The cases enumerated ... process of being resolved.” The Rottenstein Law Group LLP, ...
(Date:8/20/2014)... BCC Research ( ) reveals ... DETECTORS: TECHNOLOGIES AND GLOBAL MARKETS , the global ... grow to $15.2 billion by 2019, with a ... Increasing industrialization is driving significant growth across ... range of industrial applications such as military and ...
(Date:8/20/2014)... Mateo, CA (PRWEB) August 20, 2014 ... newest product—the Really Little Green Pouch —to meet ... to feed babies and toddlers homemade foods. , ... Little Green Pouch co-founder Maggie Crawford. She continues, ... kids, to limit exposure to things like pesticides and ...
(Date:8/20/2014)... Pittsburgh, PA (PRWEB) August 20, 2014 ... to clean the mouth in an optimal manner without ... an inventor from Vacaville, Calif. , The patent-pending DR. ... the tongue and teeth thoroughly. It promotes good oral ... to use two different devices. Convenient, compact, affordable, eco-friendly ...
(Date:8/20/2014)... Tumour Research has been chosen by Plymouth University to ... launched in April 2009 to raise awareness of, and ... outcomes for brain tumour patients. , A range of ... funds for the charity, and members of staff and ... encouraged to donate, fundraise and volunteer. The involvement of ...
Breaking Medicine News(10 mins):Health News:350 NJ DePuy ASR Lawsuits Dismissed Pending Settlement Talks, Notes Rottenstein Law Group LLP 2Health News:Global Market for Photonic Sensors and Detectors to Reach $15.2 Billion in 2019 2Health News:Global Market for Photonic Sensors and Detectors to Reach $15.2 Billion in 2019 3Health News:Little Green Pouch Launches New Product to Help Health-conscious Parents Reduce Babies’ Eco-footprint 2Health News:Plymouth University chooses Brain Tumour Research as official charity 2
... Preventative Services Task Force,s (USPSTF) recommendation to no longer ... has begun to negatively affect the number of yearly ... the benefits of early detection. After the USPSTF delivered ... of Colorado saw a significant drop in mammograms in ...
... Mayo Clinic researchers have discovered two mutations responsible for ... ago. The researchers say their study -- appearing in ... neural pathway that may help understand a variety of ... now because of Next Generation genomic sequencing technology," says ...
... bursts of sleep in infants are linked with growth spurts, new ... daily sleep records for their infants (14 girls, nine boys), who ... researchers analyzed the total of 5,798 daily sleep records and also ... sleep, with the amount of sleep over a 24-hour period increasing ...
... can be quite jarring for a parent or caregiver to ... child roaming around the backseat free of their safety restraints. ... researchers reveals that most children who first unbuckle were age ... vehicle is in motionputting them at a 3.5-fold increased risk ...
... -- A drug commonly used to treat kidney cancer may ... study published in the May issue of the Journal ... the action of mammalian target of rapamycin (mTOR), a protein ... used to treat advanced renal cell carcinoma. But researchers ...
... Medical costs for children and teens with diabetes are six ... States, a new study finds. Researchers from the U.S. ... made in 2007 for nearly 50,000 youth aged 19 and ... youth with diabetes were $9,061, compared with $1,468 for those ...
Cached Medicine News:Health News:New studies show negative effects from revised mammography recommendation for women, ages 40-49 2Health News:Mayo Clinic finds new genetic cause of neurodegeneration 2Health News:Extra Sleep in Infants Seems to Signal Growth Spurts 2Health News:Little fingers, big trouble: Yale study sheds light on child self-unbuckling 2Health News:Renal cancer drug temsirolimus shows promise against mesothelioma 2
(Date:8/20/2014)...   Ventana Medical Systems, Inc.  (Ventana), a ... its VENTANA System for Primary Diagnosis 1 ... for routine pathology, including primary diagnosis with human ... software coupled with either the VENTANA iScan Coreo ... automated digital slide creation, case management and computer ...
(Date:8/20/2014)... LYNDHURST, N.J. , Aug. 20, 2014  Amerigen ... Amerigen Pharmaceuticals Co. Ltd., has received Chinese FDA ... Mecobalamin 0.5 mg Tablets into the ... of a marketing and distribution agreement with Sinochem ... product at its US FDA approved and China ...
(Date:8/20/2014)... , Aug. 20, 2014 ... available in its catalogue: The Market ... .html The European, Middle Eastern and ... medical devices. As part of its coverage, this ... concentrates on the EMEA medical device markets and ...
Breaking Medicine Technology:Full digitization of the anatomic pathology lab is here with the VENTANA System for Primary Diagnosis 2Full digitization of the anatomic pathology lab is here with the VENTANA System for Primary Diagnosis 3Amerigen Pharmaceuticals Ltd. announces that its Chinese subsidiary, Suzhou Amerigen Pharmaceuticals Co. Ltd., has received Chinese FDA (CFDA) approval and has subsequently launched its generic Mecobalamin 0.5 mg Tablets into the China domestic mark 2The Market for Medical Devices in EMEA 2The Market for Medical Devices in EMEA 3The Market for Medical Devices in EMEA 4The Market for Medical Devices in EMEA 5
... A fixed pipette is ... a single volume. Fixed volume ... and advantages as other Finnpipette ... design, Super blow-out (1-40ul), Soft-touch ...
... The new Finnpipette Focus ... specifically to combine ergonomics with ... interchangeable handle plate offers a ... sizes. The new shorter tip ...
... is precision, ergonomics, and value!, ... with soft non-slip, contoured handle , ... light plunger spring action , Completely ... without the need for recalibration , ...
Medicine Products: