Allylglucosinolate and Herbivorous Caterpillars: A Contrast in Toxicity and Tolerance

See allHide authors and affiliations

Science  16 Jun 1978:
Vol. 200, Issue 4347, pp. 1296-1298
DOI: 10.1126/science.200.4347.1296


Allylglucosinolate, found in many cruciferous plants, is acutely toxic to Papilio polyxenes larvae, which do not normally attack crucifers. By contrast, larval growth of Pieris rapae, a crucifer specialist, is not affected even by artificially high concentrations of allylglucosinolate. Larval growth of Spodoptera eridania, a generalist feeder, is inhibited by high but not by low concentrations of the compound.