کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2056977 1075854 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
SIZ1, a small ubiquitin-related modifier ligase, controls cold signaling through regulation of salicylic acid accumulation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
SIZ1, a small ubiquitin-related modifier ligase, controls cold signaling through regulation of salicylic acid accumulation
چکیده انگلیسی

SummaryLow temperature induces several genes to acquire plant cold tolerance. Here, we demonstrate that accumulation of salicylic acid (SA) is involved in the regulation of the DREB1A/CBF3 regulon and plant tolerance to cold stresses. The SA-accumulating mutant siz1 exhibits sensitivity to chilling and freezing conditions and decreased expression of DREB1A/CBF3 and its regulon genes. Reduction of SA levels in siz1 by nahG restored cold sensitivity and down-regulation of these genes. Database analyses and RT-PCR analysis revealed that the ice1 mutation also increased expression of SA-responsive genes. As well as siz1, another SA-accumulating mutant acd6 exhibited freezing sensitivity and the sensitivity was suppressed in acd6 nahG plants. Taken together, these data indicate that SA is involved in regulation of cold signaling.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Plant Physiology - Volume 167, Issue 7, 1 May 2010, Pages 555–560
نویسندگان
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