Extensive local geographic variation in locoweed toxin produced by a fungal endophyte
Jeremy S Davis,
Matthew Scott,
Daniel Cook
et al.
Abstract:Legumes are notorious for coevolutionary arms races where chemical defenses are employed to ward off herbivores—particularly insect seed predators. Locoweeds are a group of plants containing the toxic alkaloid swainsonine which can poison livestock and causes millions in economic damage every year. Swainsonine is known to be produced by the fungal endophyte Alternaria section Undifilum, and the chemical composition of the toxin has been well characterized. Despite this knowledge, the ecological roles and evolu… Show more
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