Featured Research

from universities, journals, and other organizations

Plant Doctors Target Sudden Oak Death

Date:
April 12, 2005
Source:
USDA / Agricultural Research Service
Summary:
Majestic oaks and woody backyard plants like azaleas and camellias can both fall victim to a microbe that's perhaps best known for causing Sudden Oak Death disease in California woodlands. The fungus-like microorganism, Phytophthora ramorum, is the target of Agricultural Research Service scientists working in laboratories and greenhouses on both coasts.

Plant pathologists Pedro Uribe (left) and Frank Martin survey a mound of dead trees that succumbed to sudden oak death and had to be removed.
Credit: Photo by Peggy Greb

Majestic oaks and woody backyard plants like azaleas and camellias can both fall victim to a microbe that's perhaps best known for causing Sudden Oak Death disease in California woodlands. The fungus-like microorganism, Phytophthora ramorum, is the target of Agricultural Research Service scientists working in laboratories and greenhouses on both coasts.

Related Articles


These researchers are plant pathologists, or "plant doctors"—experts in plant diseases. They're working to uncover secrets about the microbe, and to create new, environmentally friendly ways to thwart it.

P. ramorum has menaced California's scenic oak woodlands since the mid-1990s. And, more than a half-million otherwise ready-to-sell nursery plants have had to be destroyed to ensure they wouldn't spread the infection.

Agricultural inspectors and plant nursery operators checking their stock for the microbe might soon have additional help from a laboratory test developed by ARS plant pathologists Frank N. Martin at Salinas, Calif., and colleague Paul W. Tooley at Ft. Detrick, Md. Their assay is based on a stretch of mitochondrial DNA—telltale genetic material that occurs outside of a cell's nucleus, according to Tooley.

The assay may complement the tests of the pathogen's nuclear DNA that are already in use, Martin noted.

Fast, reliable assays help technicians in plant-health laboratories across the county determine if the microbe in plant samples they're examining is—or isn't—P. ramorum.

Martin, who's based in the ARS Crop Improvement and Protection Research Unit, and Tooley, in the agency's Foreign Disease-Weed Science Research Unit, developed the test with Cheryl L. Blomquist, a State of California plant pathologist.

Colleague Robert G. Linderman at Corvallis, Ore., is probing the differing effects of P. ramorum on woody ornamental plants popularly grown in West Coast nurseries, and is looking for new tactics nursery managers could use to undermine the pathogen. A plant pathologist, Linderman is in the ARS Horticultural Crops Research Unit.

ARS is the U.S. Department of Agriculture's chief scientific research agency.


Story Source:

The above story is based on materials provided by USDA / Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA / Agricultural Research Service. "Plant Doctors Target Sudden Oak Death." ScienceDaily. ScienceDaily, 12 April 2005. <www.sciencedaily.com/releases/2005/03/050325185909.htm>.
USDA / Agricultural Research Service. (2005, April 12). Plant Doctors Target Sudden Oak Death. ScienceDaily. Retrieved March 3, 2015 from www.sciencedaily.com/releases/2005/03/050325185909.htm
USDA / Agricultural Research Service. "Plant Doctors Target Sudden Oak Death." ScienceDaily. www.sciencedaily.com/releases/2005/03/050325185909.htm (accessed March 3, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Tuesday, March 3, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rare Goblin Shark Found in Australia

Rare Goblin Shark Found in Australia

AFP (Mar. 3, 2015) A goblin shark, a rare sea creature described as an &apos;alien of the deep&apos; is found off Australia and delivered to the Australian Museum in Sydney. Duration: 01:25 Video provided by AFP
Powered by NewsLook.com
500 Snakes Surprise Construction Workers In Canada

500 Snakes Surprise Construction Workers In Canada

Newsy (Mar. 2, 2015) Hundreds of snakes, disturbed by a construction project, were relocated to a wildlife rescue association in Canada. Video provided by Newsy
Powered by NewsLook.com
Going Gluten-Free Could Get You A Tax Break

Going Gluten-Free Could Get You A Tax Break

Newsy (Mar. 2, 2015) If a doctor advises you to remove gluten from your diet, you could get a tax deduction on the amount you spend on gluten-free foods. Video provided by Newsy
Powered by NewsLook.com
Zookeepers Copy Animal Poses In Hilarious Viral Photos

Zookeepers Copy Animal Poses In Hilarious Viral Photos

Buzz60 (Mar. 2, 2015) Zookeepers at the Symbio Wildlife Park in Helensburgh, Australia decided to take some of their favorite animal photos and recreate them by posing just like the animals. Jen Markham (@jenmarkham) has the story. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins