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:: سال 6، شماره 2 - ( 6-1396 ) ::
جلد 6 شماره 2 صفحات 24-32 برگشت به فهرست نسخه ها
سازوکارهای دفاعی گیاهان در برابر بیمارگرها
جلال غلام نژاد*
دانشگاه اردکان ، jgholamnezhad@ardakan.ac.ir
چکیده:   (1195 مشاهده)

غلام‌نژاد ج. 1396. سازوکارهای دفاعی گیاهان در برابر بیمارگرها. دانش بیماری‌شناسی گیاهی 6(2): 32-24.

گیاهان دارای سازوکارهای دفاعی متعددی هستند، که می­توان آن­ها را با ریزجانداران یا مواد شیمیایی تحریک و فعال کرد. پنج نوع مقاومت القایی در گیاهان عبارتند از مقاومت اکتسابی موضعی، مقاومت اکتسابی سیستمیک،  تنظیم سیستمیک خاموشی ژن‌ها،  مقاومت سیستمیک القاشده و  واکنش سیستمیک در برابر زخم. مقاومت اکتسابی سیستمیک مهمترین نوع مقاومت القایی است، که حفاظت مداوم و طولانی‌مدت علیه آلودگی در برابر دامنه وسیعی از بیمارگرها را در گیاهان موجب می­شود. تشکیل پروتیین­های مرتبط با بیماری‌زایی، تغییر دیواره سلولی با رسوب و اتصال پلی‌ساکاریدها، پروتیین­ها، گلیکوپروتیین­ها، فنل‌ها،تولید فیتوآلکسین‌ها و لیگنینی شدن مراحل بروز این نوع مقاومت در گیاهان هستند.

واژه‌های کلیدی: پروتیین، پراکسیداز، لیگنین، مقاومت القایی
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نوع مطالعه: پژوهشي | موضوع مقاله: تخصصي
فهرست منابع
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Gholamnezhad J. Plants Defense Mechanisms Against Pathogens. pps. 2017; 6 (2) :24-32
URL: http://yujs.yu.ac.ir/pps/article-1-169-fa.html

غلام نژاد جلال. سازوکارهای دفاعی گیاهان در برابر بیمارگرها. دانش بیماری شناسی گیاهی. 1396; 6 (2) :24-32

URL: http://yujs.yu.ac.ir/pps/article-1-169-fa.html



سال 6، شماره 2 - ( 6-1396 ) برگشت به فهرست نسخه ها
سامانه نشریات دانشگاه یاسوج دانش بیماری شناسی گیاهی University of Yasouj Journals System Plant Pathology Science
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