Overexpression of the Galega orientalis gibberellin receptor improves biomass production in transgenic tobaccoстатья

Статья опубликована в высокорейтинговом журнале

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[1] Overexpression of the galega orientalis gibberellin receptor improves biomass production in transgenic tobacco / L. J, H. Gao, Z. Wang et al. // Plant Physiology and Biochemistry. — 2013. — Vol. 73. — P. 1–6. Gibberellins (GAs) are well-known phytohormones that contribute to a wide range of plant growth and development functions including stem elongation and leaf expansion. GA receptors perceive GA and transmit signals to activate GA-regulated reactions. In this study, a GA receptor gene with homology to other leguminous plants was isolated from Galega orientalis and termed GoGID. The 1732-bp full-length GoGID gene included an open reading frame of 1035 bp encoding a peptide of 344 amino acids. Sequence analysis indicated that GoGID shares conserved HGGS motif and active amino acid sites (Ser-Asp-Val/IIe) that are essential for maintaining it GA-binding activity. GoGID mRNA expression was more abundant in leaves than in roots or stems and could be up-regulated by the exogenous hormones. Overexpression of GoGID in transgenic tobacco plants promoted plant elongation and improved biomass production. These results suggested that GoGID functions as a GA receptor to alter GA-mediated signaling. GoGID may have a role in genetic engineering for the improvement of forage crops. [ DOI ]

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