کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2017569 | 1542094 | 2012 | 8 صفحه PDF | دانلود رایگان |
Earlier studies have shown that the Lc gene of maize, a member of the R gene family that encode basic-helix-loop-helix (bHLH) transcription factors, is involved with anthocyanin production and trichome formation in Arabidopsis. We previously reported that the N-terminus of R protein interacts with CAPRICE (CPC), a regulatory protein, in triggering epidermal hair differentiation in Arabidopsis. In this study, we investigated the roles of full-length R, the N-terminal region of R (RN) and the C-terminal region of R (RC) in epidermal cell differentiation and anthocyanin production. We found that the N-terminal region was responsible for leaf trichome and root hair differentiation, whereas full-length R was required for anthocyanin upregulation. Yeast two-hybrid analysis showed that the C-terminal region was the binding site for the formation of homo- or hetero-dimers of the R-like bHLH transcription factor. To stimulate anthocyanin production, full-length R is required.
► We analyzed the function of bHLH gene, R.
► N-terminal region of R was responsible for epidermal hair differentiation.
► Full-length R was required for anthocyanin upregulation.
Journal: Plant Science - Volume 183, February 2012, Pages 115–122