Hallo Lon,
thank you for your information!
I understood, they developed already a gen manipulated plum before they
have tried different resistant cultivars at the USA...
And now - just short before "a crisis in this country" - they want to
sell this wonderful new plum. Bon appetit!
"HoneySweet" sounds like the word: "liberty-link" like one American
company is calling the "wonderful connection" between Roundup, the gen
manipulated plants and the company at the EU.
Since some decades we have also the plum pox at Germany. It came from
Bulgaria 1918!
PPV has never been a big problem because professional producers are
regularly spraying and we (and you too) have had already resistant plum
cultivars and we produced already new resistant plum cultivars
additionally.Without gen manipulation.
We have many plum cultivars which are considered PPV resistant (the
fruits AND the leaves and the wood). Professionals need usually only
fruit-resistance...
Anna Späth
Bühler Frühzwetsche
Cacaks Beste
Cacaks Frühe
Cacaks Schöne
Graf Brühl
Herman
Sanctus Hubertus
Ruth Gerstetter
Gräfin Cosel
Valor
and many others
e.g. also different Nancy Mirabelle
Your US Stanley and Ontario should be also good to medium
resistant.
But the very new plum "Jojo" is
absolute 100%ly resistant (without gen manipulation)!
Many (or some) of your USA apricots are also PPV resistant.
ciao
hans Germany
Lon J. Rombough schrieb:
Begin forwarded message:
From: ARS
News Service <NewsService@ars.usda.gov>
Date: July
25, 2007 7:42:21 AM PDT
To: ARS News
subscriber <lonrom@hevanet.com>
Subject:
Plum-Pox-Resistant Trees Move Forward
Reply-To: ARS News
Service <NewsService@ars.usda.gov>
STORY LEAD:
Plum-Pox-Resistant Trees Move Forward
___________________________________________
ARS News Service
Agricultural Research Service, USDA
Kim Kaplan, (301) 504-1637, kim.kaplan@ars.usda.gov
July 25, 2007
--View this report online, plus photos and related stories, at
www.ars.usda.gov/is/pr
___________________________________________
Plum trees with resistance to plum pox (PPV), a virus that can
devastate stone fruit, have moved a step closer to reality, according
to the Agricultural Research Service (ARS), which is leading the
project.
The U.S. Department of Agriculture's Animal and Plant Health
Inspection Service (APHIS), which has regulatory authority over
genetically engineered organisms, recently "deregulated" HoneySweet,
as the PPV-resistant plum tree is named. This means APHIS had
determined that the tree is not a plant pest and that it will have no
significant impact on other plants.
Deregulated products have a history of safe use in U.S. agriculture.
APHIS has overseen the deregulation of more than 70 genetically
engineered plants, including corn, cotton, rapeseed (canola), soybean,
flax, sugar beet and squash. In September 1996, papaya became the
first genetically engineered tree to be deregulated.
ARS is now taking the next step in HoneySweet's development, which is
for cooperators such as universities to plant small quantities of the
trees to study how they grow under a variety of conditions, a process
commonly undertaken for new varieties.
A standard genetic engineering technique was used to introduce a gene
for the PPV coat protein into cells extracted from plum seeds. Cells
that incorporated the new gene into the plum DNA were then regenerated
and grown into complete plum trees. These trees have the new gene in
their DNA and are resistant to PPV through a process called gene
silencing.
While HoneySweet itself produces high-quality fruit of commercial
standard, it may also be used as breeding stock to introduce PPV
resistance into other plum breeding lines for future variety
development. Fruit from HoneySweet or its progeny will not be eaten or
sold without further regulatory approval by the U.S. Food and Drug
Administration and the U.S. Environmental Protection Agency.
PPV was first identified in the United States in Pennsylvania in 1999
and has since been found in New York and Michigan. To ensure that PPV
was eradicated during the 1999 outbreak, over 1,600 acres of
commercial orchards and homeowner trees had to be destroyed at a cost
of more than $40 million.
But since developing a PPV-resistant plum tree is not a simple or
quick process, ARS has not waited until plum pox has a major presence
in the United States to do the research. Rather, ARS has taken the
proactive step of developing a PPV-resistant tree and doing the
testing required to allow genetically engineered trees to become
available before plum pox precipitates a crisis in this country.
More information about the HoneySweet plum tree can be found at
http://www.ars.usda.gov/is/br/plumpox.
ARS is USDA's chief scientific research agency.
___________________________________________
This is one of the news reports that ARS Information distributes to
subscribers on weekdays. Send feedback and questions to the ARS News
Service at NewsService@ars.usda.gov.
* To change the address, please notify the ARS News Service at
NewsService@ars.usda.gov.
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leave-130031-22236Y@ls.ars.usda.gov.
* Other ARS news products are available by e-mail. For details about
them or to subscribe, please contact the ARS News Service or visit
http://www.ars.usda.gov/is/pr/lists.htm.
__________________________________________
ARS News Service, Information Staff, Agricultural Research Service
5601 Sunnyside Ave., Room 1-2251, Beltsville MD 20705-5128
NewsService@ars.usda.gov | www.ars.usda.gov/news
Phone (301) 504-1638 | fax (301) 504-1486
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