![]() ![]() Ĭhen DM, Chen Z, Wu M, Wang Y, Wang YJ, Yan HW, Xiang Y (2017) Genome-wide identification and expression analysis of the HD-Zip gene family in moso bamboo ( Phyllostachys edulis). Ĭarabelli M, Possenti M, Sessa G, Ruzza V, Morelli G, Ruberti I (2018) Arabidopsis HD-Zip II proteins regulate the exit from proliferation during leaf development in canopy shade. Ĭai R et al (2017) The maize WRKY transcription factor ZmWRKY17 negatively regulates salt stress tolerance in transgenic Arabidopsis plants. īo C et al (2020) Maize WRKY114 gene negatively regulates salt-stress tolerance in transgenic rice. īhattacharjee A, Khurana JP, Jain M (2016) Characterization of rice homeobox genes, OsHOX22 and OsHOX24, and over-expression of OsHOX24 in transgenic Arabidopsis suggest their role in abiotic stress response. Īso K, Kato M, Banks JA, Hasebe M (1999) Characterization of homeodomain-leucine zipper genes in the fern Ceratopteris richardii and the evolution of the homeodomain-leucine zipper gene family in vascular plants. Trends Plant Sci 12:419–426Īriel F, Diet A, Verdenaud M, Gruber V, Frugier F, Chan R, Crespi M (2010) Environmental regulation of lateral root emergence in Medicago truncatula requires the HD-Zip I transcription factor HB1. Īriel F, Manavella PA, Dezar CA, Chan RL (2007) The true story of the HD-Zip family. Īgalou A et al (2008) A genome-wide survey of HD-Zip genes in rice and analysis of drought-responsive family members. Thus, the overexpression of Phehdz1 enhances the drought stress tolerance of transgenic rice, while also potentially modulating the expression of metabolism-related genes.Ībe M, Katsumata H, Komeda Y, Takahashi T (2003) Regulation of shoot epidermal cell differentiation by a pair of homeodomain proteins in Arabidopsis. ![]() Many of the differentially expressed genes identified by a transcriptome analysis are involved in MAPK signal transduction and the biosynthesis of secondary metabolites. Accordingly, the overexpression of Phehdz1 enhances the drought tolerance of transgenic rice. Moreover, Phehdz1-overexpressing rice plants had a higher survival rate as well as higher relative water and proline contents, but a lower malondialdehyde content, than the WT plants after a 30% polyethylene glycol 6000 treatment. In response to mannitol treatments, the Phehdz1-overexpressing transgenic rice had a higher germination rate and longer shoots than the wild-type controls. Moreover, it could bind to the core region encoded by the H-box sequence (CAATAATTG) in yeast. A transient expression assay proved that Phehdz1 was localized in the nucleus of tobacco cells. A quantitative real-time PCR analysis indicated Phehdz1 expression was significantly induced by drought, high salinity, and abscisic acid (ABA). Additionally, Phehdz1 (HD-Zip I gene) was isolated and confirmed to be highly expressed in the roots. In this study, 78 moso bamboo ( Phyllostachys edulis) HD-Zip genes were investigated and classified into four subfamilies (HD-Zip I-IV). Many studies suggested homeodomain-leucine zipper (HD-Zip) transcription factors are important regulators of plant growth and development, signal transduction, and responses to environmental stresses. Overexpression of Phehdz1 can improve the drought tolerance of transgenic rice and affect its secondary metabolism. 78 HD-Zip family genes in Phyllostachys edulis were analyzed.
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