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Article

Rice dwarf mutant d1, which is defective in the alpha subunit of the heterotrimeric G protein, affects gibberellin signal transduction.

Proceedings of the National Academy of Sciences of the United States of America - 10 Oct 2000

Ueguchi-Tanaka M, Fujisawa Y, Kobayashi M, Ashikari M, Iwasaki Y, Kitano H, Matsuoka M

Abstract excerpt

Previously, we reported that the rice dwarf mutant, d1, is defective in the alpha subunit of the heterotrimeric G protein (Galpha). In the present study, gibberellin (GA) signaling in d1 and the role of the Galpha protein in the GA-signaling pathway were investigated. Compared with the wild type, GA induction of alpha-amylase activity in aleurone cells of d1 was greatly reduced. Relative to the wild type, the...

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Identifiers

PMID: 11027362
DOI: 10.1073/pnas.97.21.11638
PMCID: PMC17253

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Source receipt: pubmed, retrieved 7 Sept 2026.

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