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Plant Sciences

Portland State University

Series

2009

Sexual dimorphism (Plants)

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Sex-Specific Variation In The Interaction Between Distichlis Spicata (Poaceae) And Mycorrhizal Fungi, Sarah M. Eppley, Charlene Ashley Mercer, Christian Haaning, Camille Brianne Graves Oct 2009

Sex-Specific Variation In The Interaction Between Distichlis Spicata (Poaceae) And Mycorrhizal Fungi, Sarah M. Eppley, Charlene Ashley Mercer, Christian Haaning, Camille Brianne Graves

Biology Faculty Publications and Presentations

Associations between mycorrhizal fungi and plants can influence intraspecific competition and shape plant population structure. While variation in plant genotypes is known to affect mycorrhizal colonization in crop systems, little is known about how genotypes affect colonization in natural plant populations or how plant sex might influence colonization with mycorrhizal fungi in plant species with dimorphic sexual systems. In this study, we analyzed mycorrhizal colonization in males and females of the wetland dioecious grass Distichlis spicata, which has spatially segregated sexes. Our results suggest that D. spicata males and females interact with mycorrhizal fungi differently. We discuss the implications for …