Plant Tissue Cult. 14(1) : 69-74, 2004 (June)

Cyclic AMP in Auxin Signal Transduction Pathway ?

Hashimul Ehsan and Harry Van Onckelen

Plant Biology Department, University of New Hampshire, Durham, NH-03824, USA

Key words: Tobacco BY-2 cell, Cell cycle, Synchronisation, Cyclic AMP, Auxin

Abastract

The putative involvement of cAMP in downstream events of the auxin signal transduction pathway was studied in aphidicolin synchronised tobacco BY-2 cells. We applied cAMP analogues either to 2-NAA inhibited or to auxin starved tobacco BY-2 cell cultures with the idea that cAMP could rescue mitotic division by triggering an auxin response. None of the applied cAMP analogues induced mitotic division in either of the two experimentally inhibited tobacco BY-2 systems

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