کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5518045 1543868 2017 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inhibition of ethylene synthesis reduces salt-tolerance in tomato wild relative species Solanum chilense
ترجمه فارسی عنوان
مهار سنتز اتیلن باعث کاهش تحمل به نمک در گونه های نسبی وحشی گوجه فرنگی سلنوم می شود
کلمات کلیدی
اتیلن، هالوفی شوری کولن سولانوم، هدایت دهان، گوجه فرنگی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی

Exposure to salinity induces a burst in ethylene synthesis in the wild tomato halophyte plant species Solanum chilense. In order to gain information on the role of ethylene in salt adaptation, plants of Solanum chilense (accession LA4107) and of cultivated glycophyte Solanum lycopersicum (cv. Ailsa Craig) were cultivated for 7 days in nutrient solution containing 0 or 125 mM NaCl in the presence or absence of the inhibitor of ethylene synthesis (aminovinylglycine (AVG) 2 μM). Salt-induced ethylene synthesis in S. chilense occurred concomitantly with an increase in stomatal conductance, an efficient osmotic adjustment and the maintenance of carbon isotope discrimination value (Δ13C). In contrast, in S. lycopersicum, salt stress decreased stomatal conductance and Δ13C values while osmotic potential remained higher than in S. chilense. Inhibition of stress-induced ethylene synthesis by AVG decreased stomatal conductance and Δ13C in S. chilense and compromised osmotic adjustment. Solanum chilense behaved as an includer and accumulated high amounts of Na in the shoot but remained able to maintain K nutrition in the presence of NaCl. This species however did not stimulate the expression of genes coding for high-affinity K transport but genes coding for ethylene responsive factor ERF5 and JREF1 were constitutively more expressed in S. chilense than in S. lycopersicum. It is concluded that ethylene plays a key role in salt tolerance of S. chilense.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Plant Physiology - Volume 210, March 2017, Pages 24-37
نویسندگان
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