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Jasmonates elicit the synthesis of volatile compounds that attract which agents?
APollinating bees that carry away the pollen
BSoil bacteria that fix nitrogen in nodules
CParasitoids that develop in and kill the pest
DFungi that colonise the roots of the plant
Answer & Solution
Correct answer: C. Parasitoids that develop in and kill the pest
1. Jasmonate levels rise when a plant is wounded by a predator.
2. They promote the synthesis of compounds that are toxic to predators.
3. They also elicit volatile compounds that attract parasitoids.
4. Parasitoids are insects that spend their developing stages in or on another insect and eventually kill their host.
5. So the plant recruits an enemy of its enemy rather than a pollinator.
6. Nitrogen fixing bacteria and root colonising fungi are nutritional partners recruited under quite different signals.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 30 "Plant Form and Physiology", section 30.6 Plant Sensory Systems and Responses_
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