بررسی پروتئین های مشترک پاسخ دهنده به تنش خشکی در دو رقم حساس و متحمل گندم بهاره

نوع مقاله: علمی پژوهشی

نویسندگان

استادیار بخش کشاورزی، دانشگاه پیام نور، تهران، ایران

چکیده

در این پژوهش، تجزیه پروتئوم از طریق الکتروفورز دوبعدی و رنگ-آمیزی آبی کوماسی برای دو رقم گندم بهاره شامل کویر به‌عنوان رقم متحمل و بهار به‌عنوان رقم حساس انجام شد. بعد از کمّی کردن لکه-ها توسط نرم‌افزارSame spot progenesis ، تعداد 10 لکه پروتئینی مشترک تکرارپذیر دارای تفاوت معنی‌دار بین شرایط شاهد و تنش خشکی در دو رقم کویر و بهار تشخیص داده شد. با استفاده از طیف‌سنجی جرمی MALDI-TOF/TOFاز بین پروتئین‌های مشترک، نه لکه پروتئینی مشترک شناسایی و نوع فعالیت آنها و نحوه عمل این پروتئین‌ها در سلول مشخص شد. بر اساس نتایج بدست آمده پروتئین‌های دخیل در واکنش نوری (سه لکه پروتئینی شاملChlorophyll a-b binding protein 8، Cytochrome b6-f complex iron-sulfur subunit, chloroplasti و Peptidyl-prolyl cis-trans isomerase CYP38) و چرخه کالوین (دو لکه پروتئینی شامل Fructose-1,6-bisphosphatase و ribulose-bisphosphate carboxylase small chain precursor) در هر دو رقم بیشترین گروه‌های عملکردی پروتئین و به عبارتی مهمترین پروتئین-های مشترک جهت حفظ کارایی گندم تحت شرایط تنش خشکی بودند. از آنجایی که این پروتئین‌ها در هر دو رقم متحمل و حساس تغییر بیان نشان دادند، بنظر می‌رسد که حساس‌ترین پروتئین‌ها در پاسخ به تنش خشکی در گندم بهاره باشند. در مجموع، نتایج این پژوهش نشان داد که حفظ کارایی فتوسنتز تحت تنش خشکی از اهمیت بالایی برخوردار است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Evaluation of responsive common proteins in tolerant and sensitive spring wheat cultivars under drought stress

نویسندگان [English]

  • Marouf Khalili
  • Mohammad Reza Naghavi
Assistant Professor, Department of Agriculture, Payame Noor University, P.O. Box 19395-3697 Tehran, Iran
چکیده [English]

In this research, proteome analysis was done by two-dimensional electrophoresis and stainig by Commassie brilliant blue method for two cultivars of Kavir as tolerant and Bahar as susceptible was done. After of be quantitative spots with Same spot progenesis software, 10 common protein spots with significant difference between control and drought stress conditions in the Kavir and Bahar was diagnosed. Using MALDI-TOF/TOF mass spectrometry of common proteins, nine common protein spots were identified and the type of activity and mode of action of these proteins in the cells was determined. Based on the results, proteins involved in light reactions of photosynthesis (three protein spots Chlorophyll ab binding protein 8, chloroplastic, Cytochrome b6-f complex iron-sulfur subunit, chloroplasti and Peptidyl-prolyl cis-trans isomerase CYP38, chloroplastic) and Calvin cycle (two protein spots include Fructose-1,6-bisphosphatase, chloroplastic and ribulose-bisphosphate carboxylase small chain precursor) in both cultivars were the greatest functional groups and in other words, the most important common proteins for maintain of efficiency under drought stress were. Since these proteins in both tolerant and susceptible cultivars showed changes in expression, seems to be the most sensitive proteins in response to drought stress in wheat. In other words, these results show that it is important to maintain the efficiency of photosynthesis under drought stress.

کلیدواژه‌ها [English]

  • Drought stress
  • photosynthesis
  • responsive common protein
  • Wheat
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