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More accurate, sensitive DNA test allows early identification of fungus causing WNS
Date:3/13/2013

MADISON, Wis., March 13, 2013 Even after researchers studying White Nose Syndrome (WNS) established that a fungus called Geomyces destructans is at the heart of the devastating disease, detecting it depended largely on finding dead or dying bats.

This month, the journal Mycologia will publish research by a team of U.S. Forest Service scientists and partners identifying additional species of Geomyces and describing development of a highly sensitive DNA-based technique for early identification of Geomyces destructans on bats as well as in soils and on cave walls.

"The significance of the Forest Service's recent research will have an immediate and direct benefit to WNS response at a national scale," according to Katie Gillies, imperiled species coordinator at Bat Conservation International. "This will allow managers to sample soil and substrates to test for the presence of Geomyces destructans, freeing up limited surveillance funds and time. Additionally, this opens the door to examine the use of gene silencing as a control mechanism for this devastating fungus. Research like this, that directly benefits resource managers and guides us to controlling this fungus, is critically needed."

Daniel Lindner, a research plant pathologist with the Forest Service's Northern Research Station, led research that identified 35 species of Geomyces, more than doubling the number of known species. Lindner and partners used that research to develop a DNA-based detection test for Geomyces destructans that is much more sensitive and accurate than previous tests. Forest Service scientists collaborated with the U.S. Geological Survey and the University of Wisconsin for both studies.

"At best, only 5 to10 percent of fungal species on earth have been named and scientifically described," Lindner said. "Developing a specific test for this fungus was difficult because we found that every sample from bats and caves contained
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Contact: Jane Hodgins
jmhodgins@gmail.com
651-304-7607
USDA Forest Service - Northern Research Station
Source:Eurekalert

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