Secondary metabolites

1
Secondary metabolites Not found in all
plants Dyes, flavours, fragrances,
drugs Function? Maybe in interaction between
plant and environment
3 groups Terpenoids, IPP as precursor,
25000 Alkaloids, amino acids as precursors,
12,000 Phenyl propanoid and polyketide,
pheacetate as precursors, 8000
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3
Poppy latex contains morphine and codeine. Dried
latex yields opium.
Coniine paralyzes motor nerve endings. Socrates
was executed by being fed poisonous hemlock.
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5
Theriak opium wine 5 plant poisons 64
plant drug
Spiders wont eat insects that accumulate a
particular alkaloid
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7
Caffeine is insecticide, inhibits PDE
Hodgkins lymphoma
Sprouting potatoes make cholinesterase inhibitor
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9
Phenylpropanoids
10
Polyketide derived
Phe derived
Signalling between plant and bacteria
11
Protects from UV-B
Sensitizes to UV-A
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15
Leaf surface of thyme
Spearmint glandular trichome
Cross section of cavity in lemon leaf
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17
Compare plastid pathway to cytosol ER pathway
C15 and 30 in cytosol ER, C10, 20 and 40 in
plastid
18
Essential oils
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