Saturday 31 March 2012

Scientists Clone 'Survivor' Elm Trees

ScienceDaily (Mar. 29, 2012) — Scientists at the University of Guelph have found a way to successfully clone American elm trees that have survived repeated epidemics of their biggest killer -- Dutch elm disease.



The breakthrough, published March 29 in the Canadian Journal of Forest Research, is the first known use of in vitro culture technology to clone buds of mature American elm trees.
"This research has the potential to bring back the beloved American elm population to North America," said Prof. Praveen Saxena, a plant scientist who worked on the project with Professor Alan Sullivan. Both are from Guelph's Department of Plant Agriculture.
"It may also serve as a model to help propagate and preserve thousands of other endangered plant species at risk of extinction across the globe."
Majestic American elms were among the most popular and recognizable trees in Ontario, lining boulevards and adorning city centres. But more than 95 per cent of the population in Eastern Canada and the United States has now been wiped out by Dutch elm disease.

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