Effect of nitrogen-fixing bacteria and mycorrhiza on biochemical properties and absorption of essential elements in green pea (Pisum sativum L.) under water deficit stress

Document Type : Research Paper


Department of Agronomy and Plant Breeding, University of Mohaghegh Ardabili, Ardabil, Iran


Drought stress is a critical abiotic stress that has a negative effect on plant productivity. Plant growth-promoting rhizobacteria (PGPR) such as Azotobacter and Azospirillium positively affect plant physiology, especially under drought stress. The recent study aimed to examine the effects of Mycorrhiza fungi and PGPR on the activity of antioxidant enzymes and the amount of nutrient absorption under water deficit conditions. A factorial experiment was performed based on a randomized complete block design with three replications. Factors were irrigation (regular irrigation, water deficit at the grain filling stage, water deficit at the flowering stage, no irrigation) and Mycorrhiza fungi and PGPR (Azotobacte rcoroccum, Azospirillum lipoferum, Mycorrhiza arbuscularas, Azotobacter coroccum + Azospirillum lipoferum, Azotobacte rcoroccum + Mycorrhiza arbuscular, Azospirillum lipoferum + Maycorrhiza arbuscular, Azotobacte rcoroccum + Azospirillum lipoferum + Mycorrhiza arbuscular, no inoculation). Drought stress decreased chlorophyll content and absorption of elements and increased proline, catalase, and peroxidase activity. Also, biofertilizers reduced the amount of proline, catalase, and peroxidase. They increased the amount of chlorophyll content and absorption of elements.


Article Title [فارسی]

تاثیر باکتری های تثبیت کننده نیتروژن و مایکوریزا بر خواص بیوشیمیایی و جذب عناصر ضروری در نخود فرنگی تحت تاثیر سطوح مختلف کم آبی

Authors [فارسی]

  • مهدی قاسم بگلو
  • محمد صدقی
  • رئوف سید شریفی
  • سلیم فرزانه
گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، اردبیل
Abstract [فارسی]

خشکی یکی از تنش‌های بحرانی غیربیولوژیکی است که به دلیل کاهش عملکرد، بر بهره‌وری گیاه تأثیر منفی می‌گذارد. ریزوباکترهای محرک رشد گیاهی (PGPR) مانند ازتوباکتر و آزوسپیریلیوم بر فیزیولوژی گیاه، به ویژه در شرایط تنش خشکی، تأثیر مثبت دارند. این مطالعه با هدف بررسی اثرات قارچ میکوریزا و PGPR بر فعالیت آنزیم ­های آنتی اکسیدانی و میزان جذب مواد مغذی در شرایط کمبود آب انجام شد. آزمایش به صورت فاکتوریل در قالب طرح بلوک­ های کامل تصادفی در سه تکرار انجام شد. فاکتورها شامل آبیاری (آبیاری معمولی، کمبود آب در مرحله پر شدن دانه، کمبود آب در مرحله گلدهی، عدم آبیاری) و قارچ میکوریزا و PGPR (کود آزتوباکتر کروکوکوم، آزوسپریلیوم لیپوفرم، مایکوریزا آربوسکولار، تلفیق آزوسپریلیوم لیپوفرم و ازتوباکتر، تلفیق مایکوریزا آربوسکولار و ازتوباکتر کروکوکوم، تلفیق مایکوریزا آربوسکولار و آزوسپریلیوم لیپوفرم، تلفیق ازتوباکتر کروکوکوم، آزوسپریلیوم لیپوفرم و مایکوریزا آربوسکولار، عدم تلقیح) بودند. تنش خشکی باعث کاهش میزان کلروفیل و جذب عناصر و افزایش فعالیت پرولین، کاتالاز و پراکسیداز شد. همچنین کودهای زیستی باعث کاهش میزان پرولین، کاتالاز و پراکسیداز و افزایش میزان کلروفیل و جذب عناصر شدند.

Keywords [فارسی]

  • آنزیم آنتی اکسیدان
  • خشکی
  • کود زیستی
  • مواد مغذی
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