novel, cellulose synthesis inhibitory action of ancymidol impairs plant cell expansion

The co-ordination of cell wall synthesis with plant cell expansion is an important topic of contemporary plant biology research. In studies of cell wall synthesis pathways, cellulose synthesis inhibitors are broadly used. It is demonstrated here that ancymidol, known as a plant growth retardant prim...

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Bibliographic Details
Published in:Journal of experimental botany 2008-10, Vol.59 (14), p.3963-3974
Main Authors: HOFMANNOVA, Jana, SCHWARZEROVA, Katerina, HAVELKOVD, Lenka, BORIKOVA, Petra, PETRASEK, Jan, OPATRNY, Zdenek
Format: Article
Language:English
Subjects:
6-dichlorobenzonitrile
Ancymidol
B lymphocytes
Biological and medical sciences
cell expansion
Cell growth
Cell lines
Cell Shape - drug effects
cell wall
Cell Wall - drug effects
Cell Wall - metabolism
Cell walls
Cells, Cultured
Cellulose - antagonists & inhibitors
Cellulose - biosynthesis
cellulose synthesis
Delta cells
Fundamental and applied biological sciences. Psychology
gibberellin
Gibberellins - antagonists & inhibitors
Gibberellins - biosynthesis
isoxaben
Microtubules
Nicotiana - cytology
Nicotiana - drug effects
Nicotiana - metabolism
Plant cells
Plants
Protoplasts
Pyrimidines - pharmacology
Research Papers
vesicle trafficking
Viability
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Summary:The co-ordination of cell wall synthesis with plant cell expansion is an important topic of contemporary plant biology research. In studies of cell wall synthesis pathways, cellulose synthesis inhibitors are broadly used. It is demonstrated here that ancymidol, known as a plant growth retardant primarily affecting gibberellin biosynthesis, is also capable of inhibiting cellulose synthesis. Its ability to inhibit cellulose synthesis is not related to its anti-gibberellin action and possesses some unique features never previously observed when conventional cellulose synthesis inhibitors were used. It is suggested that ancymidol targets the cell wall synthesis pathway at a regulatory step where cell wall synthesis and cell expansion are coupled. The elucidation of the ancymidol target in plant cells could potentially contribute to our understanding of cell wall synthesis and cell expansion control.
ISSN:0022-0957
1460-2431
DOI:10.1093/jxb/ern250