Navigation Links
Sudden Oak Death pathogen is evolving, says new study that reconstructs the epidemic
Date:4/16/2008

ild were compared with an additional 15 P. ramorum isolates collected from nurseries in 12 states.

From the samples, the researchers identified 35 unique strains of the pathogen. A computer analysis further revealed how those strains were related to each other. The study found that all strains were originally derived from three basal strains that were most prevalent in the samples and common in all sites.

Armed with that information, the researchers then plotted out which regions were linked to the basal strains to create a history of the epidemic.

Two sites emerged as the origin of the basal strains: Bean Creek in Santa Cruz County, located just outside a nursery that had been shut down because of its Sudden Oak Death infestation, and the Bolinas Ridge site in Marin County's Golden Gate National Recreation Area on Mt. Tamalpais, only 5 kilometers from the site where the disease was first observed in California. The basal strains also matched those found in the nursery samples.

"Although our study identified two locations from which the Sudden Oak Death pathogen spread to other parts of California, the close proximity of the site in Santa Cruz to a nursery makes it highly probable that the epidemic began there rather than at Mt. Tam," said Garbelotto.

Garbelotto noted that previous research has already pointed to the international plant trade as having introduced the pathogen to the United States. The basal strains from the Santa Cruz and Mt. Tamalpais sites also matched the strains from the nursery samples in the study, providing further support for the key role nurseries played in the spread of the epidemic, he said.

The most likely scenario, said Garbelotto, is that the pathogen arrived in California through the nursery trade, and that it then spread from the nursery in Santa Cruz to trees bordering the facility. While the site at Mt. Tamalpais is not adjacent to a nursery, there is anecdotal evidence of frequ
'/>"/>

Contact: Sarah Yang
scyang@berkeley.edu
510-643-7741
University of California - Berkeley
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Sudden ecosystem flips imperil worlds poorest regions, say water experts
2. Bleeding, not inflammation, is major cause of early lung infection death
3. Small-scale fishing in Mexico rivals industrial fisheries in accidental turtle deaths
4. Scientists find how amber becomes death trap for watery creatures
5. Synthetic compound promotes death of lung-cancer cells, tumors
6. Earlier bites by uninfected mosquitoes boost West Nile deaths in lab mice
7. Leading cause of death in preemies might be controlled by resetting a molecular switch
8. The birth and death of dopamine neurons: A new model for neurodegeneration
9. Marsupial lion tops African lion in fight to death
10. Human deaths from shark attacks hit 20-year low last year
11. From delicious to death: Understanding taste
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sudden Oak Death pathogen is evolving, says new study that reconstructs the epidemic
(Date:9/16/2014)... The risk of severe maternal morbidity amongst women ... suggests a new study published today (17 September) ... and Gynaecology . , Australians generally enjoy high ... that health disparities exist, in particular between indigenous ... aimed to explore the independent impact of socioeconomic ...
(Date:9/16/2014)... 36 Pit Fire began on September 13, 2014. The ... It is currently over 2,300 acres in size and is ... 36 Pit Fire was calm Monday night due to higher ... an anchor point and beginning to construct a fireline on ... following resources are working on the fire: , 7 20-person ...
(Date:9/16/2014)... impact that spelled doom for the dinosaurs 66 million ... to a much greater extent than their deciduous peers, ... results are published in the journal PLOS Biology ... trove of thousands of fossilized leaves of angiosperms ... able to reconstruct the ecology of a diverse plant ...
Breaking Biology News(10 mins):New study examines the impact of socioeconomic position & maternal morbidity in Australia 2New study examines the impact of socioeconomic position & maternal morbidity in Australia 3Meteorite that doomed dinosaurs remade forests 2Meteorite that doomed dinosaurs remade forests 3Meteorite that doomed dinosaurs remade forests 4
... peas in a pod may not be so friendly when planted ... once separated may treat the former conjoined twin as an alien ... at how plants determine who is a competitor when competing with ... in plant ecology. "There is no reason for roots to fight ...
... wake of Katrina, the public health threats from infectious ... from milder, more common infections rather than exotic diseases. ... hygiene measures and a little common sense. , "Deadly ... break out after hurricanes and floods in areas where ...
... that once characterized expansive tracts of tropical rainforest gets ... how big a role these winged gardeners play is ... Chicago and several Latin American universities are about to ... in Mexico's gulf coast state of Veracruz. , Henry ...
Cached Biology News:Prozac for future Plants on Mars 2Hurricane aftermath: Infectious disease threats from common, not exotic, diseases 2Birds and bats sow tropical seeds 2Birds and bats sow tropical seeds 3
(Date:9/17/2014)... NASA’s MESSENGER has just celebrated its 10 year ... have one of its latch valves, V27200-818, operating onboard ... investigation of the planet Mercury. It is only the ... provided a vast amount of information and images of ... utilize solenoids that also include permanent magnets to maintain ...
(Date:9/16/2014)... “Nature has developed, very cleverly, some lessons ... in optical design,” said Joseph Shaw, director of the ... explore surfaces and structures at the nanoscale, we’ll discover ... San Diego in August during a conference called “ ... by Shaw and Rongguang Liang of the University of ...
(Date:9/16/2014)...  Biocom, the association representing the Southern ... th Annual National Health Information Technology Week, which ... improving our health care system. " ... world,s most vibrant hubs for health IT and digital ... genomic testing to remote patient monitoring," said Joe ...
(Date:9/16/2014)... Rice University scientists who created a deicing film for ... as a transparent coating for glass. , The ... colleagues could keep glass surfaces from windshields to skyscrapers ... to radio frequencies (RF). , The technology was ... Applied Materials and Interfaces . , The ...
Breaking Biology Technology:Nature’s designs inspire research into new light-based technologies 2Nature’s designs inspire research into new light-based technologies 3Nature’s designs inspire research into new light-based technologies 4Nature’s designs inspire research into new light-based technologies 5Biocom Recognizes National Health IT Week 2Nanoribbon film keeps glass ice-free 2
... Inc.,(Nasdaq: HOLX ) today announced the successful completion ... Tech Corp., for all,outstanding shares of Third Wave Technologies, ... per share in cash., The subsequent offering period ... July 23, 2008. The initial tender offer period expired,at ...
... 24 Cara Therapeutics, Inc.,announced today that ... additional funding,to its original $24 million Series ... round was led by new investor, Devon ... Previous investors participating,in the round included; Ascent ...
... Md., July 24 United,Therapeutics Corporation (Nasdaq: ... 2008 second quarter financial results before the open ... Therapeutics will host a half-hour teleconference on Thursday,July ... teleconference is accessible,by dialing 1-800-603-1777, with international callers ...
Cached Biology Technology:Hologic Completes Cash Tender Offer for Third Wave Technologies, Inc. 2Hologic Completes Cash Tender Offer for Third Wave Technologies, Inc. 3Hologic Completes Cash Tender Offer for Third Wave Technologies, Inc. 4Cara Therapeutics Secures $12.3 Million in Series C Extension Financing 2
... Sets Sets of pET host strains ... The most common method for transformation of ... to use chemically competent cells. Although competent ... greater efficiency, reproducibility and convenience are achieved ...
... uses a simplified procedure and streamlines the ... kit is based on the three step ... sodium bisulfite where cytosine is converted into ... in-column desulphonation reaction eliminates several precipitation steps ...
... x-ray detectors from KUBTEC represents a stand-alone, ... to 16 bit digital interface. The large ... sensor with pixel spacing down to 48 ... x-ray energies (10-50 kV) and an extended ...
... kit was tested on rat tissue extracts (liver, ... ( S. cerevisae ) extract. It was also ... and cell lines. Application: A simple and reliable ... based on the detection of the inorganic phosphate ...
Biology Products: