GRUSP, an Universal Stress Protein, Is Involved in Gibberellin-dependent Induction of Flowering in Arabidopsis thaliana
| Autor: | D. S. Gorshkova, Irina A. Getman, L. I. Sergeeva, E. S. Pojidaeva, Vl. V. Kuznetsov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
GRUSP
Transgene Arabidopsis Biophysics Repressor Locus (genetics) Flowers Biochemistry universal stress protein Flowering Locus C Gene expression Arabidopsis thaliana Laboratorium voor Plantenfysiologie Gene At3g58450 flowering biology Arabidopsis Proteins fungi food and beverages General Chemistry General Medicine biology.organism_classification Gibberellins Cell biology phytohormones Phenotype Biochemistry Biophysics and Molecular Biology Gibberellin Laboratory of Plant Physiology Signal Transduction |
| Zdroj: | Doklady Biochemistry and Biophysics 499 (2021) 1 Doklady Biochemistry and Biophysics, 499(1), 233-237 Doklady. Biochemistry and Biophysics |
| ISSN: | 1607-6729 |
| Popis: | Abstract The effect of T-DNA insertion in the 3'-UTR region of Arabidopsis thaliana At3g58450 gene encoding the Germination-Related Universal Stress Protein (GRUSP) was studied. It was found that under a long-day condition this mutation delays transition to flowering of grusp-115 transgenic line that due to a reduced content of endogenous bioactive gibberellins GA1 and GA3 in comparison to the wild-type plants (Col-0). Exogenous GA accelerated flowering of both lines but did not change the time of difference in the onset of flowering between Col-0 and grusp-115. In addition to changes in GA metabolism, grusp-115 evidently has disturbances in realization of the signal that induces flowering. This is confirmed by the results of gene expression of the floral integrator FLOWERING LOCUS T (FT) and the floral repressor FLOWERING LOCUS C (FLC), which are key flowering regulators and acting opposite. We hypothesize that the formation of grusp-115 phenotype can also be affected by a low expression level of FT due to up-regulated FLC expression. |
| Databáze: | OpenAIRE |
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