کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10748245 1050267 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The transcription factor SlDof22 involved in ascorbate accumulation and salinity stress in tomato
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
The transcription factor SlDof22 involved in ascorbate accumulation and salinity stress in tomato
چکیده انگلیسی
Ascorbic acid (AsA) is an important antioxidant and its biosynthesis in plants has extensively been investigated. However, the key regulatory factors controlling the accumulation of AsA remain elusive. Here we report that tomato SlDof22, a member of the Dof family, negatively regulated AsA accumulation in tomato. RNA interference (RNAi) of SlDof22 in transgenic lines induced AsA levels, and affected the expression of genes in the D-mannose/L-galactose pathway and AsA recycling. In addition, SlSOS1 was significantly down-regulated in SlDof22 RNAi plants which resulted in reduced tolerance to salt stress. We further found that SlDof22 could bind to the promoter sequence of SlSOS1 gene by yeast one-hybrid analysis. Taken together, our data suggested that the Dof transcription factor SIDof22 involved in ascorbate accumulation and salt stress response in tomato.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 474, Issue 4, 10 June 2016, Pages 736-741
نویسندگان
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