Expressional analysis of an EREBP transcription factor gene OsEBP-89 in rice.

OsEBP-89 gene encodes an ethylene responsive element binding protein (EREBP) transcription factor from rice (Oryza sativa). Northern blot analysis revealed that OsEBP-89 was expressed in root, stem, seeds, flowers and leaves of rice. Histochemical assay showed that GUS expressed mainly in phloem of vascular tissues of the root and stem transition region (RST), basal part of sheath roots, stem node and basal part of adventitious roots, also in endosperm of seeds in transgenic rice harboring OsEBP-89/GUS construct (pNSG). A sequence of region from C279 to C97 was found to play an important role for OsEBP-89 genes expression though promoter deletion assay. The possible function of OsEBP-89 gene was discussed.