کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10841840 1067902 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Overexpression of Δ1-pyrroline-5-carboxylate synthetase increases proline production and confers salt tolerance in transgenic potato plants
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Overexpression of Δ1-pyrroline-5-carboxylate synthetase increases proline production and confers salt tolerance in transgenic potato plants
چکیده انگلیسی
Proline (Pro) is known as compatible osmolyte accumulated by plant cells in response to salt and drought stresses. It is supposed to be an osmoprotectant involved in the protection of cellular structures under osmotic stress. Therefore, in an attempt to increase salt tolerance in potato, a pyrroline-5-carboxylate synthetase (P5CS) cDNA from Arabidopsis thaliana was transferred to potato plants via Agrobacterium-mediated transformation. This enzyme is responsible for conversion of glutamate to Δ1-pyrroline-5-carboxylate that is reduced to Pro. The resulting transgenic potato plants showed an important increase in Pro production levels compared to non-transgenics. This Pro accumulation was particularly enhanced in the presence of salt up to 100 mM NaCl. The transgenic potato plants also showed an improved tolerance to salinity through a much less altered tuber yield and weight compared to the non-transgenic ones.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Science - Volume 169, Issue 4, October 2005, Pages 746-752
نویسندگان
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