Arbuscular mycorrhizal fungi enhance spotted knapweed growth across a riparian chronosequence

Harner, M. J., Mummey, D. L., Stanford, J. A. & Rillig, M. C.   (2010).  Arbuscular mycorrhizal fungi enhance spotted knapweed growth across a riparian chronosequence.  Biological Invasions  12, 1481–1490.