Elevated CO2 and plant species richness impact arbuscular mycorrhizal fungal spore communities

•   We enumerated arbuscular mycorrhizal (AM) fungal spore communities for 3 yr as part of a long-term CO2 enrichment experiment at Cedar Creek, Minnesota, USA. Complete factorial combinations of two levels of CO2 and N, and 16 perennial plant species grown in monoculture and 16-species polyculture...

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Veröffentlicht in:The New phytologist. - 1979. - 157(2003), 3 vom: 20. März, Seite 579-588
1. Verfasser: Wolf, Julie (VerfasserIn)
Weitere Verfasser: Johnson, Nancy C, Rowland, Diane L, Reich, Peter B
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2003
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article BioCON (Biodiversity CO2 and N) experiment Glomus clarum N addition arbuscular mycorrhizal (AM) fungi elevated CO2 free-air CO2 enrichment (FACE) multi-response permutation procedure (MRPP) species richness
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520 |a •   We enumerated arbuscular mycorrhizal (AM) fungal spore communities for 3 yr as part of a long-term CO2 enrichment experiment at Cedar Creek, Minnesota, USA. Complete factorial combinations of two levels of CO2 and N, and 16 perennial plant species grown in monoculture and 16-species polyculture were arranged in a split-plot design. •   In 1998-2000, spore communities were quantified under monocultures of eight plant species. In 2000, measurements were expanded to include monocultures and polycultures of all of the plant species. •   Under plant monocultures, only Glomus clarum responded significantly to CO2 elevation out of 11 species present. This response was not detectable under plant polycultures. Glomus clarum was also significantly more abundant under plant polycultures. Nitrogen addition had small negative effects on AM fungal spore abundance and species richness in 2000. The interaction of CO2 and N did not affect arbuscular mycorrhizal fungal spore communities. •   We show that CO2 enrichment and plant species richness impact arbuscular mycorrhizal fungal community structure. These findings are important because altered symbiotic functioning may result 
650 4 |a Journal Article 
650 4 |a BioCON (Biodiversity 
650 4 |a CO2 and N) experiment 
650 4 |a Glomus clarum 
650 4 |a N addition 
650 4 |a arbuscular mycorrhizal (AM) fungi 
650 4 |a elevated CO2 
650 4 |a free-air CO2 enrichment (FACE) 
650 4 |a multi-response permutation procedure (MRPP) 
650 4 |a species richness 
700 1 |a Johnson, Nancy C  |e verfasserin  |4 aut 
700 1 |a Rowland, Diane L  |e verfasserin  |4 aut 
700 1 |a Reich, Peter B  |e verfasserin  |4 aut 
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