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Which defensive plant compounds are generally absent from magnoliids?
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Magnoliales
Magnolia (Magnolia fraseri).
In the context of the magnoliid clade, certain defensive plant compounds are generally absent. While magnoliids are biochemically characterized by the presence of benzylisoquinoline or aporphine alkaloids, they typically do not produce:
- Tanniferous substances
- Betalains
- Iridoid compounds
- Mustard oils1
These specific classes of defensive agents are generally not evident in magnoliids, though they may be found in other plant groups.1