مقایسه تغییرات فیزیولوژیکی ارقام مقاوم و حساس چغندر قند آلوده به ویروس زردی نکروتیک رگبرگ چغندرقند (Beet necrotic yellow vein virus)

نوع مقاله: کامل علمی - پژوهشی

نویسندگان

بخش گیاهپزشکی، دانشکده کشاورزی، دانشگاه شیراز، شیراز، ایران

چکیده

ویروس زردی نکروتیک رگبرگ چغندرقند (Beet Necrotic Yellow Vein Virus, BNYVV) عامل بیماری مهم و خطرناک ریشه‌ریشی در این گیاه می‌باشد. تحقیقات بسیار گسترده‌ای روی این بیماری تاکنون انجام شده و چندین رقم مقاوم نسبت به آن معرفی گردیده است. در این مطالعه تغییرات فیزیولوژیکی دو رقم مقاوم و دو رقم حساس در برهمکنش با BNYVV مورد مقایسه قرار گرفت. نتایج آزمون الیزا نشان داد که ارقام حساس دارای غلظت بالاتری از ویروس در مقایسه با ارقام مقاوم می‌باشند. ارقام مقاوم تغییرات کمتری را در میزان وزن تر و خشک ریشه، کلروفیل و آنتی‌اکسیدان نشان دادند. ارقام مقاوم با تغییرات بیشتر در میزان کربوهیدرات، فنول و پروتئین کل در مقایسه با گیاه کنترل واکنش نشان دادند. به طور کلی ویروس زردی نکروتیک رگبرگ چغندرقند در ارقام مقاوم سبب ایجاد پاسخی سریع‌ و تغییرات فیزیولوژیکی بیشتر را در مقایسه با ارقام حساس می‌شود.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of physiological changes in resistant and susceptible sugar beet cultivars to Beet Necrotic Yellow Vein Virus

نویسندگان [English]

  • Abozar Ghorbani
  • Effat Alemzadeh
  • Habiballah Hamzehzarghani
  • Keramatollah Izadpanah
Department of plant protection, College of Agriculture, Shiraz University, Shiraz, Iran
چکیده [English]

Beet necrotic yellow vein virus (BNYVV), the causal agent of rhizomania, is one of the most important viruses influencing sugar beet root in Iran and other parts of the world. A high number of studies has been done on this disease and several resistant cultivars were introduced. In the present study, the physiological changes in two resistant and two susceptible sugar beet cultivars in interaction with this virus was studied. ELISA test results showed that susceptible cultivars had significantly higher virus concentration compared with resistant cultivars. Resistant cultivars showed significantly lower variation in fresh and dry root weight, chlorophyll and antioxidant content. Resistant cultivars showed higher variation in carbohydrate content, total phenol and protein compared with control. In general, BNYVV stimulates a prompt response and more physiological changes in resitant cultivars compared with susceptible ones.

کلیدواژه‌ها [English]

  • Beet Necrotic Yellow Vein Virus
  • Physiological changes
  • sugar beet
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