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Miriamin, a defensive diterpene from the eggs of a land slug (Arion sp.)

By Frank C. Schroeder, Andrés Gonzàlez, Thomas Eisner and Jerrold Meinwald

Abstract

The eggs of the land slug Arion sp. contain a diterpene, miriamin, characterized as a polyoxygenated geranylgeraniol derivative. In bioassays with a coccinellid beetle, Harmonia axyridis, miriamin was shown to be potently antifeedant, indicating that the compound plays a protective role in nature. It is suggested that mucilaginous soil-inhabiting organisms, given their intense exposure to pathogens and predators, may be a rich source of chemical defensive agents

Topics: Physical Sciences
Publisher: National Academy of Sciences
Year: 1999
OAI identifier: oai:pubmedcentral.nih.gov:24114
Provided by: PubMed Central
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