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JXB Advance Access originally published online on April 8, 2004
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Journal of Experimental Botany, Vol. 55, No. 401, pp. 1433-1435, June 1, 2004
© 2004 Oxford University Press

GENE NOTE

An {alpha}-crystallin gene, ACD31.2 from Arabidopsis is negatively regulated by FPF1 overexpression, floral induction, gibberellins, and long days

Received 17 December 2003; Accepted 18 February 2004

John W. Chandler1,* and Siegbert Melzer2

1 Institute of Developmental Biology, University of Cologne, Gyrhofstrasse 17, D-50923 Cologne, Germany
2 University of Liège, Plant Physiology, B22, Sart Tilman, B-4000 Liège, Belgium

* To whom correspondence should be addressed. Fax: +49 221 470 5164. E-mail: John.Chandler{at}uni-koeln.de

A gene sequence was isolated from a differential display experiment to find transcripts altered in expression by overexpression of FLORAL PROMOTING FACTOR 1 (FPF1) in Arabidopsis thaliana. The gene, ACD31.2, encodes an {alpha}-crystallin domain containing protein with homology to small heat shock proteins. In addition to down-regulation by FPF1 overexpression, the ACD31.2 transcript is also down-regulated by long days, floral induction, and by gibberellin in wild-type plants. Expression is highest in leaves and stems.

Key words: Arabidopsis thaliana, FPF1, gibberellin, photoperiod.


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