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

@article{Schroeder1999MiriaminAD,
  title={Miriamin, a defensive diterpene from the eggs of a land slug (Arion sp.).},
  author={Frank C. Schroeder and A. S{\'a}nchez Gonz{\'a}lez and Thomas Eisner and Jerrold Meinwald},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1999},
  volume={96 24},
  pages={
          13620-5
        }
}
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. 
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References

SHOWING 1-10 OF 18 REFERENCES
Azamacrolides: a family of alkaloids from the pupal defensive secretion of a ladybird beetle (Epilachna varivestis).
TLDR
Defensive droplets from glandular hairs of the pupa of the Mexican bean beetle contain a group of structurally novel alkaloids, the azamacrolides, which are shown to be (5Z)-11-propyl-12-azacyclotetradec-5-en-14-olide and trace amounts of three closely related components.
Guaianolides, heliangolides, diterpenes and cycloartenol derivatives from Balsamorhiza sagittata
Abstract Investigation of the aerial parts of Balsamorhiza sagittata afforded 12 new sesquiterpene lactones, five guaianolides, three heliangolides, three germacranolides and two geranylnerol
Biparental defensive endowment of eggs with acquired plant alkaloid in the moth Utetheisa ornatrix.
TLDR
Field and laboratory tests showed that the alkaloids of Utetheisa ornatrix protect eggs from predators, and a previously identified pheromone, derived by the male from the alkAloid and emitted during precopulatory behavior, may announce the male alkaloidal worth to the female.
A geranyl nerol derivative and other constituents from Blainvillea latifolia
Abstract The aerial parts of Blainvillea latifolia afforded in addition to widespread compounds the heliangolides zoapatanolide A and B, the guaianolide subacaulin and a new one as well as a further
New germacranolides, guaianolides and rearranged Guaianolides from Lasiolaena santosii
Abstract The aerial parts of L. santosii afforded three new diterpenes, a phenylpropanol, three eudesmane derivatives, three germacranolides, seventeen guaianolides and four rearranged guaianolides
Eudesmanolides, guaianolides, germacranolides and elemanolides from Zinnia species☆
Abstract The investigation of six Zinnia species afforded in addition to already known compounds two eudesmanolides, five guaianolides, three germacranolides, five elemanolides and a
Biology of Coccinellidae
  • I. Hodek
  • Biology
    Springer Netherlands
  • 1973
TLDR
The morphology and Anatomy of Coccinellidae, a new type of Diplodocus, has been described, for the first time, in detail, with a single author, A. Honek, who described it as a "cell-based model".
Reinvestigation of oak leaf roller sex pheromone components and the hypothesis that they vary with diet.
TLDR
The sex pheromone of the oak leaf roller, Archips semiferanus, was identified as a specific blend (67:33) of trans-11- and cis- 11-tetradecenyl acetates, which conflict with the hypothesis that the composition and perception of month sex phersomones vary with slight changes in diet.
Addition of pseudohalogens to unsaturated carbohydrates. VI. Synthesis of 4′ -thiocordycepin
The addition of the pseudohalogen iodine nitrate (IONO2) to the endocyclic alkenic bond in benzyl 2-O-benzyl-3,4-dideoxy-α-D-glycero-pent-3-enopyranoside (3) is described. The stereochemistry and
Determining Absolute Configurations of Stereocenters in Annonaceous Acetogenins through Formaldehyde Acetal Derivatives and Mosher Ester Methodology
Formaldehyde (methylene) acetal derivatives can be conveniently prepa- red, on a small scale, using parent Annonaceous acetogenins which have 1,2-, 1,4-, and/or 1,5-diols along their aliphatic
...
1
2
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