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Title:

Shift in polyphenol profile and sublethal phenotype caused by silencing of anthocyanidin synthase in apple (Malus sp.)

Document type:
Zeitschriftenaufsatz
Author(s):
Szankowski, Iris; Flachowsky, Henryk; Li, Houhua; Halbwirth, Heidrun; Treutter, Dieter; Regos, Ionela; Hanke, Magda-Viola; Stich, Karl; Fischer, Thilo C.
Abstract:
We have investigated the consequences of blocking anthocyanin biosynthesis by silencing a key enzyme, anthocyanidin synthase, in transgenic plants of a red-leaved apple cultivar. This is complementary to a previous study of induction of anthocyanin biosynthesis by overexpressing a heterologous transcription factor. Analysis of these opposite phenotypes allows one to study anthocyanin functions in apple and to test the influence of the genetic manipulation on other, related metabolites. As expect...     »
Keywords:
Anthocyanins/biosynthesis/physiology; Catechin/metabolism; Flavonoids/biosynthesis; Gene Expression Regulation, Plant; Gene Silencing; Malus/anatomy {&} histology/genetics/metabolism; Oxygenases/genetics; Phenols; Phenotype; Plant Leaves/anatomy {&} histology/genetics/physiology; Plant Proteins/genetics; Plant Roots/genetics/growth {&} development; Plants, Genetically Modified/metabolism; Polyphenols; RNA, Messenger/metabolism
Journal title:
Planta
Year:
2009
Journal volume:
229
Journal issue:
3
Pages contribution:
681--692
Fulltext / DOI:
doi:10.1007/s00425-008-0864-4
Print-ISSN:
0032-0935
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