Os07g0650600

The rice Os07g0650600 was reported as OsBLE2 in 2003 by researchers from the Japan.

Annotated Information

Gene Symbol

• Os07g0650600<=> OsBLE2

Function

• OsBLE2encoding a predicted polypeptide of 761 amino acid residues and nine possible transmembrane regions.
• OsBLE2 is involved in BL-regulated growth and development processes in rice.

Expression

• OsBLE2 expression was most responsive to BL in the lamina joint and leaf sheath in rice seedlings. Besides, auxin and gibberellins also increased its expression. OsBLE2 expressed more, as revealed by in situ hybridization, in vascular bundles and root primordia, where the cells are actively undergoing division, elongation, and differentiation.

Transgenic

• Transgenic rice expressing antisense OsBLE2 exhibits various degrees of repressed growth. BL could not enhance its expression in transgenic rice expressing antisense BRI1, a BR receptor, indicating that BR signaling to the enhanced expression of OsBLE2 is through BRI1. BL effect in the d1 mutant rice was much weaker than that in its wild-type control, indicating that heterotrimeric G protein may be a component of BRs signaling.

Labs working on this gene

• National Institute of Agrobiological Sciences, Tsukuba 305-8602, Japan (∗author for correspondence; e-mail skomatsu@affrc.go.jp);
• BioScience Center, Nagoya University, Chikusa, Nagoya 464-8601, Japan;
• Department of Bioscience, Fukui Prefectural University, 4-1-1 kenjyojima, Matsuoka-cho, Yoshida-gun, Fukui 910-1195, Japan