Induced phenylpropanoid metabolism during suberization and lignification : a comparative analysis

Induction of the biosynthesis of phenylpropanoids was monitored at the enzyme level through measurement of the temporal change in the activity of two marker enzymes of phenylpropanoid metabolism, phenylalanine ammonia-lyase, (PAL, E.C. 4.1.3.5) and 4-coumaryl-CoA ligase (4-CL, E.C. 6.2.1.12) and two...

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Veröffentlicht in:Journal of plant physiology. - 1979. - 157(2000), 6 vom: 31. Dez., Seite 601-7
1. Verfasser: Bernards, M A (VerfasserIn)
Weitere Verfasser: Susag, L M (BerichterstatterIn), Bedgar, D L, Anterola, A M, Lewis, N G
Format: Aufsatz
Sprache:English
Veröffentlicht: 2000
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. NASA Discipline Plant Biology Non-NASA Center Coumaric Acids Lipids Membrane Lipids suberin 8072-95-5 mehr... Lignin 9005-53-2 Alcohol Oxidoreductases EC 1.1.- cinnamyl alcohol dehydrogenase EC 1.1.1.195 Aldehyde Oxidoreductases EC 1.2.- cinnamoyl CoA reductase EC 1.2.1.44 Phenylalanine Ammonia-Lyase EC 4.3.1.24 Coenzyme A Ligases EC 6.2.1.- 4-coumarate-CoA ligase EC 6.2.1.12
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520 |a Induction of the biosynthesis of phenylpropanoids was monitored at the enzyme level through measurement of the temporal change in the activity of two marker enzymes of phenylpropanoid metabolism, phenylalanine ammonia-lyase, (PAL, E.C. 4.1.3.5) and 4-coumaryl-CoA ligase (4-CL, E.C. 6.2.1.12) and two marker enzymes for hydroxycinnamyl alcohol biosynthesis, cinnamoyl-CoA:NADP+ oxidoreductase (CCR, E.C. 1.2.1.44) and cinnamyl alcohol dehydrogenase (CAD, E.C. 1.1.1.195) in both suberizing potato (Solanum tuberosum) tubers and lignifying loblolly pine (Pinus taeda) cell cultures. While measurable activities of PAL, 4-CL and CAD increased upon initiation of suberization in potato tubers, that of CCR did not. By contrast, all four enzymes were induced upon initiation of lignification in pine cell cultures. The lack of CCR induction in potato by wound treatment is consistent with the channelling of hydroxycinnamoyl-CoA derivatives away from monolignol formation and toward other hydroxycinnamoyl derivatives such as those that accumulate during suberization 
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700 1 |a Bedgar, D L  |e verfasserin  |4 aut 
700 1 |a Anterola, A M  |e verfasserin  |4 aut 
700 1 |a Lewis, N G  |e verfasserin  |4 aut 
700 1 |a Lewis, N G  |e investigator  |4 oth 
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