Agriculture Reference
In-Depth Information
Cytosol
Glycolysis
Pentose phosphate pathway
Glucose
Glucose
Glucose-6-P
NADP
G-6-P dehydrogenase
NADP
6-Phosphoglucono-
lactone
Fructose-6-P
NADP 6-Phosphogluconolactone
dehydrogenase
NADPH Ribulose-5-P
Ribose-5-P
Erythrose-4-P
Phosphoenol
pyruvate
Shikimate pathway
Pyruvate
3-Dioxyarabino heptulosonate 7-P
)
TCA
Shikimate
Chorismate
Tyr
Phe
Tr p
Cinnamate
Lignin
Phenolic
Phenylpropanoid pathway
Biosynthesis of phenolic phytochemicals.
Fig. 16.1
phenolic phytochemicals (Mann, 1978; Chugh and Sawhney, 1999; Shetty et al., 2003;
Shetty and Wahlqvist, 2004; Vattem et al., 2005; Fig. 16.2).
These phenolic phytochemicals have been shown to have a wide array of functions in
plants. In plants biotic and abiotic stress has been shown to stimulate secondary metabolite
synthesis that results in the production of phenolics (Dixon et al., 1994; Dixon and Paiva,
1995). Ozone exposure has been shown to increase transcript levels of enzymes involved in
the phenolic synthesis and lignin pathways (Brooker and Miller, 1998). Studies have linked
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