کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6363684 | 1316371 | 2016 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Overexpressing Vitis vinifera YSK2 dehydrin in tobacco improves plant performance
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The constitutive expression of a Vitis vinifera dehydrin (DHN) of the YSK2 type (VvDhn) allowed for a more vigorous growth in transgenic tobacco plants than in wild-type (WT). In vitro, a very distinct germination kinetics and root development profile was observed both under optimal and stress conditions (control, mannitol, NaCl). Transgenic lines outperformed WT in germination success and precocity and root length. Furthermore, transgenic lines were able to germinate under 300Â mM mannitol. Adult tobacco plants expressing VvDhn also displayed improved tolerance to both drought and salt stresses. The VvDhn lines under these constraints were significantly better than WT in terms of biomass and leaf number. Moreover, higher capacities to recover from drought were revealed. However, the major effect the VvDhn over-expression was observed under non limiting conditions. VvDhn interfered with the development program leading to higher biomass production (leaf, shoot and root) and to the production of higher number of leaves. The VvDhn gene show great promise for grapevine genetic improvement to drought and salinity tolerance. VvDhn gene can be used to screen and/or design for new grapevine rootstocks that together with viticultural management programs has the potential to cope successfully with a more adverse and unpredictable climate, which is highly demand by community.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agricultural Water Management - Volume 164, Part 1, 31 January 2016, Pages 176-189
Journal: Agricultural Water Management - Volume 164, Part 1, 31 January 2016, Pages 176-189
نویسندگان
Rahma Jardak-Jamoussi, Olfa Zarrouk, Asma Ben Salem, Néjia Zoghlami, Samiha Mejri, Samia Gandoura, Bilel Khiari, Ahmed Mliki, Manuela Chaves, Abdelwahed Ghorbel, Carla Pinheiro,