Lynnaun Johnson

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PhD candidate
Chicago Botanic Garden / Northwestern University

lynnaunjohnson2018 at u dot northwestern dot edu

I am a PhD student interested in fungal ecology specifically of orchid and mycorrhizal interactions for the conservation of endangered orchids native to North America. My current research investigates mycorrhizal fungi of epiphytic orchids in southwest Florida. Prior to this research I investigated the mycorrhizal fungi of Mexican vanilla.

Do mycorrhizal fungi explain the rarity of Dendrophylax lindenii, the Ghost Orchid? (2018)

More than half of the 210 species of native North American orchids are endangered. One of these, Dendrophylax lindenii, the Ghost Orchid, is restricted to southwestern Florida and far western Cuba. It is a leafless epiphyte that grows on a restricted set of tree species, two in Florida and up to 13 in Cuba. While pollinators influence the broad scale distribution of orchid species,...

Phylogenetic Investigation of Fusarium spp. isolated from Vanilla roots (2015)

Vanilla planifolia is an economically valuable orchid that is widely used for flavors and fragrances. Worldwide, the Vanilla industry usually encounters recurring threats from Fusarium oxysporum, a fungal pathogen that causes root and stem rot. Studies have revealed that Vanilla farms lose up to 67% of plants when infected by Fusarium oxysporum. Studies also...