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New Method Confirms Importance Of Fungi In Arctic Nitrogen Cycle

Date:
May 4, 2006
Source:
Marine Biological Laboratory
Summary:
A new method to calculate the transfer of nitrogen from Arctic mushrooms to plants is shedding light on how fungi living symbiotically on plant roots and transfer vital nutrients to their hosts.

Cortinarius favrei grows in the midst of dwarf Betula and Salix, Vaccinium, and Eriophorum in the Alaskan tundra. At the Arctic LTER site, isotopic measurements indicate that mycorrhizal fungi function similar to this species contribute 60-90% of their plant's nitrogen while using 8-16% of their net photosynthesis.
Credit: Image courtesy of Marine Biological Laboratory

A new method to calculate the transfer of nitrogen from Arctic mushrooms to plants is shedding light on how fungi living symbiotically on plant roots and transfer vital nutrients to their hosts. The analytical technique, developed by John E. Hobbie, MBL Distinguished Scientist and co-director of the laboratory’s Ecosystems Center and his son, Erik A. Hobbie of the University of New Hampshire, may be applied to nearly all conifers, oaks, beeches, birch and shrubs such as blueberry and cranberry—all nitrogen-poor ecosystems—and will be an important to


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The above story is based on materials provided by Marine Biological Laboratory. Note: Materials may be edited for content and length.


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Marine Biological Laboratory. "New Method Confirms Importance Of Fungi In Arctic Nitrogen Cycle." ScienceDaily. ScienceDaily, 4 May 2006. <www.sciencedaily.com/releases/2006/05/060503202146.htm>.
Marine Biological Laboratory. (2006, May 4). New Method Confirms Importance Of Fungi In Arctic Nitrogen Cycle. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2006/05/060503202146.htm
Marine Biological Laboratory. "New Method Confirms Importance Of Fungi In Arctic Nitrogen Cycle." ScienceDaily. www.sciencedaily.com/releases/2006/05/060503202146.htm (accessed October 1, 2014).

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