Schematic representation of different <i>TaHSP26</i> promoter deletion constructs used for transformation of <i>Arabidopsis</i> plants.

<p>The numbers at the 5′end indicate the lengths of the upstream end of the different promoter deletion constructs, the downstream end consist of 112 bp UTR in four of the constructs. The green symbol represents the CCAAT BOX1 <i>cis</i>-acting element present in the promoter.