جلد 6، شماره 2 - ( 6-1396 )                   جلد 6 شماره 2 صفحات 32-24 | برگشت به فهرست نسخه ها


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Gholamnezhad J. (2017). Plants Defense Mechanisms Against Pathogens. Plant Pathol. Sci.. 6(2), 24-32. doi:10.29252/pps.6.2.24
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) :32-24 10.29252/pps.6.2.24

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


دانشگاه اردکان ، jgholamnezhad@ardakan.ac.ir
چکیده:   (12313 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.

متن کامل [PDF 667 kb]   (5474 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: تخصصي
دریافت: 1395/2/14 | پذیرش: 1396/2/8

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