plant promoters

[J Loh]

Hi! I'm a postgrad student looking for plant promoters to use in a 
construct. I have CaMV35S promoter but would like to try others as a 
comparison. Any suggestions? It should preferably be constitutive for 
expression in all parts of plant and applicable for a variety of plants 
as well i.e. not specific for only one species of plant. I'm trying to 
find an alternative to CaMV35S that is comparable if not superior in 
performance. Thanks.