Author/Authors :
Adair، نويسنده , , Karen and Blazewicz، نويسنده , , Steven J. and Hungate، نويسنده , , Bruce A. and Hart، نويسنده , , Stephen C. and Dijkstra، نويسنده , , Paul and Schwartz، نويسنده , , Egbert، نويسنده ,
Abstract :
We present a significant relationship between the natural abundance isotopic composition of ecosystem pools and the abundance of a microbial gene. Natural abundance 15N of soils and soil DNA were analysed and compared with archaeal ammonia oxidizer abundance along an elevation gradient in northern Arizona and along a substrate age gradient in Hawaiʹi. There was a significant positive correlation between the abundance of archaeal amoA genes and natural abundance δ15N of total soil or DNA suggesting that ammonia oxidizing archaea play an important role in ecosystem N release.
Keywords :
Natural abundance15N Composition , Nitrification , Soil DNA , Ammonia oxidation , Ammonia oxidizing archaea , Ecosystem N release
