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Isolation of the 3β-HSD promoter from Digitalis ferruginea subsp. ferruginea and its functional characterization in Arabidopsis thaliana    
Yazarlar
Noreen Aslam
Muhammad Sameeullah
Türkiye
Muhammet Yıldırım
Türkiye
Prof. Dr. Mehmet Cengiz BALOĞLU
Kastamonu Üniversitesi, Türkiye
Bahtiyar Buhara Yücesan
Türkiye
Andreas Lössl
Mohammad Tahir Waheed
Ekrem Gürel
Türkiye
Özet
Background: Although members of the SDR gene family (short chain dehydrogenase) are distributed in kingdom of life, they have diverse roles in stress tolerance mechanism or secondary metabolite biosynthesis. Nevertheless, their precise roles in gene expression or regulation under stress are yet to be understood. Methods: As a case study, we isolated, sequenced and functionally characterized the 3β-HSD promoter from Digitalis ferruginea subsp. ferruginea in Arabidopsis thaliana. Results: The promoter fragment contained light and stress response elements such as Box-4, G-Box, TCT-motif, LAMP element, ABRE, ARE, WUN-motif, MYB, MYC, W box, STRE and Box S. The functional analysis of the 3β-HSD promoter in transgenic Arabidopsis seedlings showed that the promoter was expressed in cotyledon and root elongation zone in 2 days’ seedlings. However, this expression was extended to hypocotyl and complete root in 6 days’ seedlings. In 20 days-old seedlings, promoter expression was distributed to the whole seedling including hydathodes aperture, vascular bundle, shoot apical meristem, trichomes, midrib, leaf primordia, hypocotyl and xylem tissues. Further, expression of the promoter was enhanced or remained stable under the different abiotic stress conditions like osmotic, heat, cold, cadmium or low pH. In addition, the promoter also showed response to methyl jasmonate (MeJA) application. The expression could not be induced in wounded cotyledon most likely due to lack of interacting elements in the promoter fragment. Conclusions: Taken together, the 3β-HSD promoter could be a candidate for the development of transgenic plants especially under changing environmental conditions.
Anahtar Kelimeler
3β-HSD promoter | Abiotic stress | Functional characterization | SDR
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Molecular Biology Reports
Dergi ISSN 0301-4851
Dergi Tarandığı Indeksler SCI
Dergi Grubu Q4
Makale Dili Türkçe
Basım Tarihi 06-2022
Cilt No 49
Sayfalar 7173 / 7183
Doi Numarası 10.1007/s11033-022-07634-4
Makale Linki http://dx.doi.org/10.1007/s11033-022-07634-4