Signal-Transduction Pathways toward the Regulation of Brassinosteroid Biosynthesis

Brassinosteroids (BRs) collectively refer to the steroidal plant hormones that stimulate dramatic growth by cells and organs. Because of their essential roles, mutants that are defective in either the biosynthetic or signaling pathway exhibit severe dwarfism. Numerous reports from biochemical, genet...

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Published inJournal of plant biology = Singmul Hakhoe chi Vol. 50; no. 3; pp. 225 - 229
Main Author Choe, S.H. (Seoul National University, Seoul, Republic of Korea), E-mail: shchoe@snu.ac.kr
Format Journal Article
LanguageEnglish
Published Heidelberg Springer Nature B.V 01.06.2007
한국식물학회
Subjects
Allosteric properties
ARABIDOPSIS
ARROZ
Auxins
Biosynthesis
BRASINOSTEROIDES
Brassinolide
BRASSINOSTEROIDE
BRASSINOSTEROIDS
CITOCROMO P450
CYTOCHROME P450
Dwarfism
Genes
HOMEOSTASIE
HOMEOSTASIS
Hormones
Plant hormones
RICE
RIZ
Signal transduction
Tissues
생물학
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ISSN1226-9239
1867-0725
DOI10.1007/BF03030649

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Summary:Brassinosteroids (BRs) collectively refer to the steroidal plant hormones that stimulate dramatic growth by cells and organs. Because of their essential roles, mutants that are defective in either the biosynthetic or signaling pathway exhibit severe dwarfism. Numerous reports from biochemical, genetic, and physiological studies agree that DWARF4 mediates the flux-determining step in the biosynthetic pathway. Rather than exercising allosteric feed-back regulation of the enzyme by the end product brassinolide, transcriptional control of the DWF4 gene is considered the most important for precise modulation of the pool size for bioactive BRs.
Bibliography:2008000197
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G704-000309.2007.50.3.005
ISSN:1226-9239
1867-0725
DOI:10.1007/BF03030649