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Simulated nitrogen deposition causes a decline of intra- and extraradical abundance of arbuscular mycorrhizal fungi and changes in microbial community structure in northern hardwood forestsAuthor(s): Linda T.A. van Diepen; Erik A. Lilleskov; Kurt S. Pregitzer; R. Michael Miller
Source: Ecosystems. 13(5): 683-695.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
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DescriptionIncreased nitrogen (N) deposition caused by human activities has altered ecosystem functioning and biodiversity. To understand the effects of altered N availability, we measured the abundance of arbuscular mycorrhizal fungi (AMF) and the microbial community in northern hardwood forests exposed to long-term (12 years) simulated N deposition (30 kg N ha-1 y-1) using phospholipid fatty acid (PLFA) analysis and hyphal in-growth bags. Intra- and extraradical AMF biomass and total microbial biomass were significantly decreased by simulated N deposition by 36, 41, and 24%, respectively.
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Citationvan Diepen, Linda T.A.; Lilleskov, Erik A.; Pregitzer, Kurt S.; Miller, R. Michael. 2010. Simulated nitrogen deposition causes a decline of intra- and extraradical abundance of arbuscular mycorrhizal fungi and changes in microbial community structure in northern hardwood forests. Ecosystems. 13(5): 683-695.
Keywordsarbuscular mycorrhizal fungi, phospholipid fatty acid, nitrogen, mycelium, microbial community, sugar maple (Acer saccharum), forest, in-growth bags
- Simulated nitrogen deposition affects community structure of arbuscular mycorrhizal fungi in northern hardwood forests
- Decline of arbuscular mycorrhizal fungi in northern hardwood forests exposed to chronic nitrogen additions
- Health of eastern North American sugar maple forests and factors affecting decline
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