Cytokinin application to the shoot apical meristem of Sinapis alba enhances secondary plasmodesmata formation.

[en] A single application of cytokinin benzyladenine causes a threefold increase in the frequency of plasmodesmata in the vegetative shoot apical meristem (SAM) of Sinapis alba plants. This increase is observed 20 h after application within all cell layers (L1, L2, L3) as well as at the interfaces between these layers. Evidence is presented indicating that cytokinin promotes mainly the formation of new secondary plasmodesmata. A similar increase in the frequency of secondary plasmodesmata was observed in the Sinapis SAM during the floral transition induced by a single long day, suggesting that this effect of the long day is mediated by cytokinin.

Disciplines :

Phytobiology (plant sciences, forestry, mycology...)

Author, co-author :

Ormenese, Sandra ; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale

Bernier, Georges ; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale

Périlleux, Claire ; Université de Liège - ULiège > Département des sciences de la vie > Physiologie végétale

Language :

English

Title :

Cytokinin application to the shoot apical meristem of Sinapis alba enhances secondary plasmodesmata formation.

Publication date :

2006

Journal title :

Planta

ISSN :

0032-0935

eISSN :

1432-2048

Publisher :

Springer Science & Business Media B.V., New York, United States - New York

Volume :

224

Issue :

Pages :

1481-4

Peer reviewed :

Peer Reviewed verified by ORBi

Name of the research project :

Interuniversity Attraction Poles Programme P4/15

Funders :

BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique

Available on ORBi :

since 30 April 2010

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Bibliography

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