Attract and deter: a dual role for pyrrolizidine alkaloids in plant–insect interactions

  title={Attract and deter: a dual role for pyrrolizidine alkaloids in plant–insect interactions},
  author={Mirka Macel},
  booktitle={Phytochemistry Reviews},
Pyrrolizidine alkaloids (PAs) are the major defense compounds of plants in the Senecio genus. Here I will review the effects of PAs in Senecio on the preference and performance of specialist and generalist insect herbivores. Specialist herbivores have evolved adaptation to PAs in their host plant. They can use the alkaloids as cue to find their host plant and often they sequester PAs for their own defense against predators. Generalists, on the other hand, can be deterred by PAs. PAs can also… CONTINUE READING
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