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A novel cytochrome P450 is implicated in brassinosteroid biosynthesis via the characterization of a rice dwarf mutant, dwarf11, with reduced seed length.

The Plant cell - 1 Mar 2005

Tanabe Sumiyo, Ashikari Motoyuki, Fujioka Shozo, Takatsuto Suguru, Yoshida Shigeo, Yano Masahiro, Yoshimura Atsushi, Kitano Hidemi, Matsuoka Makoto, Fujisawa Yukiko, Kato Hisaharu, Iwasaki Yukimoto

Abstract excerpt

We have characterized a rice (Oryza sativa) dwarf mutant, dwarf11 (d11), that bears seeds of reduced length. To understand the mechanism by which seed length is regulated, the D11 gene was isolated by a map-based cloning method. The gene was found to encode a novel cytochrome P450 (CYP724B1), which showed homology to enzymes involved in brassinosteroid (BR) biosynthesis. The dwarf phenotype of d11 mutants was...

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Identifiers

PMID: 15705958
DOI: 10.1105/tpc.104.024950
PMCID: PMC1069698

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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