You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Searching for Evidence against the Mutualistic Nature of Hereditary Symbioses: A Comment on Faeth
Jennifer A. Rudgers, Andrew J. Davitt, Keith Clay, Pedro E. Gundel and Marina Omacini
The American Naturalist
Vol. 176, No. 1 (July 2010), pp. 99-103
Stable URL: http://www.jstor.org/stable/10.1086/652996
Page Count: 5
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Abstract: Associations between fungal endophytes and grasses have served as particularly useful systems for exploring the nature and significance of hereditary symbiosis. Here, we propose alternative explanations for recent work by Faeth, in which endophytes were proposed to function as reproductive parasites. Faeth argued that his data demonstrated a symbiosis‐induced shift to earlier host reproduction that could generate parasitism through life‐history trade‐offs with growth/survival. We contend that identifying a symbiosis as mutualistic or parasitic requires studies that incorporate both correlations among demographic pathways and rates of symbiont transmission; such work can advance understanding of the ecology and evolution of symbiosis.
© 2010 by The University of Chicago.