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Article

Feedback regulation of GA5 expression and metabolic engineering of gibberellin levels in Arabidopsis.

The Plant cell - 1 May 1999

Xu Y L, Li L, Gage D A, Zeevaart J A

Abstract excerpt

The gibberellin (GA) 20-oxidase encoded by the GA5 gene of Arabidopsis directs GA biosynthesis to active GAs, whereas that encoded by the P16 gene of pumpkin endosperm leads to biosynthesis of inactive GAs. Negative feedback regulation of GA5 expression was demonstrated in stems of Arabidopsis by bioactive GAs but not by inactive GA. In transgenic Arabidopsis plants overexpressing P16, there was a severe...

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Identifiers

PMID: 10330476
DOI: 10.1105/tpc.11.5.927
PMCID: PMC144230

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Feedback regulation of GA5 expression and metabolic engineering of gibberellin levels in Arabidopsis.PMID 10330476Read ↗

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Analysis of the developmental roles of the Arabidopsis gibberellin 20-oxidases demonstrates that GA20ox1, -2, and -3 are the dominant paralogs.Semantic proximity Read ↗

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