Effect of dioxygenase inhibitors on the resistance-related flavonoid metabolism of apple and pears: Chemical, biochemical and molecular biological aspects

S. Roemmelt; T. C. Fischer; H. Halbwirth; S. Peterek; K. Schlangen; J. B. Speakman; D. Treutter; G. Forkmann; K. Stich

Effect of dioxygenase inhibitors on the resistance-related flavonoid metabolism of apple and pears: Chemical, biochemical and molecular biological aspects

S. Roemmelt, T. C. Fischer, H. Halbwirth, S. Peterek, K. Schlangen, J. B. Speakman, D. Treutter, G. Forkmann, K. Stich

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

The plant growth regulator prohexadione-Ca, which is an inhibitor of 2-oxoglutarate dependent dioxygenases, acts as an anti-gibberellin and also reduces fire blight and scab of apple and pear. This beneficial side effect is related to a transient alteration of the flavonoid metabolism in apple and pear target tissues. This paper reviews the changes of the composition of flavonoids and phenylpropanoids occurring in leaves treated with prohexadione-Ca. An alternative flavonoid pathway is described leading to the formation of 3-deoxycatechins, which are uncommon in apple and pear. As biochemical prerequisites for this change in metabolism the substrate specificity of key enzymes is demonstrated.

Original language	English
Pages (from-to)	129-136
Number of pages	8
Journal	European Journal of Horticultural Science
Volume	68
Issue number	3
State	Published - May 2003

Keywords

Dihydroflavonol 4-reductase
Erwinia amylovora
Flavanone 4-reductase
Luteoliflavan
Malus
Prohexadione-Ca
Pyrus

Cite this

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title = "Effect of dioxygenase inhibitors on the resistance-related flavonoid metabolism of apple and pears: Chemical, biochemical and molecular biological aspects",

abstract = "The plant growth regulator prohexadione-Ca, which is an inhibitor of 2-oxoglutarate dependent dioxygenases, acts as an anti-gibberellin and also reduces fire blight and scab of apple and pear. This beneficial side effect is related to a transient alteration of the flavonoid metabolism in apple and pear target tissues. This paper reviews the changes of the composition of flavonoids and phenylpropanoids occurring in leaves treated with prohexadione-Ca. An alternative flavonoid pathway is described leading to the formation of 3-deoxycatechins, which are uncommon in apple and pear. As biochemical prerequisites for this change in metabolism the substrate specificity of key enzymes is demonstrated.",

keywords = "Dihydroflavonol 4-reductase, Erwinia amylovora, Flavanone 4-reductase, Luteoliflavan, Malus, Prohexadione-Ca, Pyrus",

author = "S. Roemmelt and Fischer, {T. C.} and H. Halbwirth and S. Peterek and K. Schlangen and Speakman, {J. B.} and D. Treutter and G. Forkmann and K. Stich",

year = "2003",

month = may,

language = "English",

volume = "68",

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journal = "European Journal of Horticultural Science",

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T1 - Effect of dioxygenase inhibitors on the resistance-related flavonoid metabolism of apple and pears

T2 - Chemical, biochemical and molecular biological aspects

AU - Roemmelt, S.

AU - Fischer, T. C.

AU - Halbwirth, H.

AU - Peterek, S.

AU - Schlangen, K.

AU - Speakman, J. B.

AU - Treutter, D.

AU - Forkmann, G.

AU - Stich, K.

PY - 2003/5

Y1 - 2003/5

N2 - The plant growth regulator prohexadione-Ca, which is an inhibitor of 2-oxoglutarate dependent dioxygenases, acts as an anti-gibberellin and also reduces fire blight and scab of apple and pear. This beneficial side effect is related to a transient alteration of the flavonoid metabolism in apple and pear target tissues. This paper reviews the changes of the composition of flavonoids and phenylpropanoids occurring in leaves treated with prohexadione-Ca. An alternative flavonoid pathway is described leading to the formation of 3-deoxycatechins, which are uncommon in apple and pear. As biochemical prerequisites for this change in metabolism the substrate specificity of key enzymes is demonstrated.

AB - The plant growth regulator prohexadione-Ca, which is an inhibitor of 2-oxoglutarate dependent dioxygenases, acts as an anti-gibberellin and also reduces fire blight and scab of apple and pear. This beneficial side effect is related to a transient alteration of the flavonoid metabolism in apple and pear target tissues. This paper reviews the changes of the composition of flavonoids and phenylpropanoids occurring in leaves treated with prohexadione-Ca. An alternative flavonoid pathway is described leading to the formation of 3-deoxycatechins, which are uncommon in apple and pear. As biochemical prerequisites for this change in metabolism the substrate specificity of key enzymes is demonstrated.

KW - Dihydroflavonol 4-reductase

KW - Erwinia amylovora

KW - Flavanone 4-reductase

KW - Luteoliflavan

KW - Malus

KW - Prohexadione-Ca

KW - Pyrus

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M3 - Article

AN - SCOPUS:0141788088

SN - 1611-4434

VL - 68

SP - 129

EP - 136

JO - European Journal of Horticultural Science

JF - European Journal of Horticultural Science

IS - 3

ER -

Effect of dioxygenase inhibitors on the resistance-related flavonoid metabolism of apple and pears: Chemical, biochemical and molecular biological aspects

Abstract

Keywords

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