Given the paucity of literature on plant-fungal interactions on serpentine soils and limited investigation of serpentine geoecology in eastern North America, we examined mycorrhizal colonization of Hypericum perforatum from adjacent serpentine and granite outcrops on the Deer Isles, ME to determine whether plants were differentially colonized based on substrate. We coincided our sampling with three phenologic stages of H. perforatum (preflowering, flowering, postflowering) to determine possible differences in colonization based on plant phenology. The levels of mycorrhizal colonization in H. perforatum were not significantly different between serpentine and granite sites, while levels of colonization in postflowering plants were significantly higher than in those at preflowering and flowering stages.
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1 September 2012
Mycorrhizal Colonization of Hypericum perforatum L. (Hypericaceae) from Serpentine and Granite Outcrops on the Deer Isles, Maine
Naveed Davoodian,
Jason Bosworth,
Nishanta Rajakaruna
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Northeastern Naturalist
Vol. 19 • No. 3
September 2012
Vol. 19 • No. 3
September 2012