Rice Gene Nomenclature

[silvia_k]

Hello!
I have a question about the annotation of rice genes. I am looking for what is known about several rice genes I found in BLAST searches. The names are e. g. BAD53732 or AAU44227.
In no rice database this is a known rice gene annotation. Does anybody know how to get from this name to the accession (for example like Os06g29994).
I hope anyone here knows what I mean
I am only working on Arabidopsis and have absolutely no experience with rice. Sorry.
Regards,
Silvia