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J Chem Ecol. 1994 Aug;20(8):1931-43. doi: 10.1007/BF02066234.

Molecular basis ofMorinda citrifolia (L.): Toxicity on drosophila.

Author information

1
Unité de Neurobiologie de l'Apprentissage et de la Mémoire C.N.R.S. URA 1491, Bat. 446, Université Paris XI, Orsay, F-91405, Orsay cedex, France.

Abstract

The ripe fruit ofMorinda citrifolia, host plant forDrosophila sechellia is highly toxic for three closely related species (D. melanogaster, D. simulans, andD. mauritiana). Green and rotten fruits are not toxic for all species tested. Short fatty acids were found to be present in large quantities in the extract of the ripe fruit. The most abundant (octanoic acid) was tested pure for its toxicity in a dose-dependent manner;D. sechellia is five to six times more resistant thanD. melanogaster to octanoic acid. Octanoic acid alone seems to be sufficient to explain the toxic effect of the pulp. It is less abundant in the rotten fruit and absent in the green fruit.

PMID:
24242720
DOI:
10.1007/BF02066234

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