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Cited by 320

The DOI matches its Crossref record; 81 of the 81 references it cites were found in a registry or an index.

Functional Analysis of a Predicted Flavonol Synthase Gene Family in Arabidopsis

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Owens, Daniel K., Alerding, Anne B., Crosby, Kevin C., Bandara, Aloka B., Westwood, James H., Winkel, Brenda S.J.·2008·Plant Physiology

Abstract

The genome of Arabidopsis (Arabidopsis thaliana) contains five sequences with high similarity to FLAVONOL SYNTHASE1 (AtFLS1), a previously characterized flavonol synthase gene that plays a central role in flavonoid metabolism. This apparent redundancy suggests the possibility that Arabidopsis uses multiple isoforms of FLS with different substrate specificities to mediate the production of the flavonols, quercetin and kaempferol, in a tissue-specific and inducible manner. However, biochemical and genetic analysis of the six AtFLS sequences indicates that, although several of the members are expressed, only AtFLS1 encodes a catalytically competent protein. AtFLS1 also appears to be the only member of this group that influences flavonoid levels and the root gravitropic response in seedlings under nonstressed conditions. This study showed that the other expressed AtFLS sequences have tissue- and cell type-specific promoter activities that overlap with those of AtFLS1 and encode proteins that interact with other flavonoid enzymes in yeast two-hybrid assays. Thus, it is possible that these “pseudogenes” have alternative, noncatalytic functions that have not yet been uncovered.

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Metadata

Authors
Owens, D. K., Alerding, A. B., Crosby, K. C., Bandara, A. B., Westwood, J. H., & Winkel, B. S. J.
Venue
Plant Physiology
Published
2008-05-08
Volume
147
Issue
3
Pages
1046-1061
ISSN
  • 0032-0889 (ISSN-L)
  • 1532-2548
OpenAlex
W2125950656
Cited by
320
References
81
FWCI
3.97
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Functional Analysis of a Predicted Flavonol Synthase Gene Family in Arabidopsis. https://app.cochat.ai/papers/10.1104/pp.108.117457
The paper
Owens, D. K., Alerding, A. B., Crosby, K. C., Bandara, A. B., Westwood, J. H., & Winkel, B. S. J. (2008). Functional Analysis of a Predicted Flavonol Synthase Gene Family in Arabidopsis. Plant Physiology. https://doi.org/10.1104/pp.108.117457

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