Ectomycorrhizal Ecology Under Primary Succession on Coastal Sand Dunes
|Date(s)|| 02/10/2014 - 4:00 p.m.
|Location||Donahue Auditorium, Gordon Science Center|
|Presenter||Thomas R. Horton, Ph.D., Associate Professor, Dept. of Environmental and Forest Biology, SUNY ESF|
|Description|| Ectomycorrhizal Ecology Under Primary Succession on Coastal Sand Dunes
Interactions Involving Pinus contorta, Mycorrhizal Fungi and Deer
The species of ectomycorrhizal fungi (EMF) supporting primary successional pine seedlings and mechanisms for their establishment were investigated. When seedlings germinate near mature trees they are colonized by mycelial networks from a diverse group of EMF supported by the trees. However, seedlings germinating in new areas such as those associated with primary succession do not have this benefit. We collected field seedlings growing among trees in forested zones and away from trees in nonforested zones at the Oregon Dunes National Recreation Area near Eugene Oregon. We compare the list of EMF on seedlings collected from the different areas and as fruiting bodies in the surrounding forests. We conclude that Suillus and Rhizopogon spp., the so-called suilloid fungi, are the principle EMF species supporting seedlings on the sand dunes, are dispersed from forested areas across the dunes by deer, and can lay dormant in soils as a resistant spore bank analogous to resistant seed banks.
The Asa Gray Seminar Series is sponsored by the Asa Gray Biological Society, and is the longest running seminar series at Utica College. Scientists are invited from throughout the region to present seminars on their ongoing research. All lectures are held in Donahue Auditorium, Gordon Science Center, at 4:00 p.m. An informal reception immediately follows. Call (315) 792-3028 for more information.
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