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شناسایی گونه‌های غالب قارچ‌ریشه‌های آربوسکولار تعدادی از درختان جنگلی منطقۀ کیاسر

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی سابق دکتری میکروبیولوژی، دانشکدۀ زیست‌شناسی، دانشگاه ساینز مالزی، جزیرۀ پنانگ، مالزی

2 دانشجوی دکتری صنایع غذایی، دانشکدۀ تکنولوژی صنعتی، دانشگاه ساینز مالزی، جزیرۀ پنانگ، مالزی

3 دانشجوی سابق کارشناسی‌ارشد گیاه‌پزشکی، دانشکدۀ کشاورزی، دانشگاه آزاد اسلامی واحد دامغان، ایران

4 دکتری گیاه‌پزشکی، دانشکدۀ کشاورزی، دانشگاه ارومیه، ایران

5 استادیار دانشکدۀ زیست‌شناسی، دانشگاه ساینز مالزی، جزیرۀ پنانگ، مالزی

چکیده

همزیستی قارچ‌ریشه‌های آربوسکولار وزیکولار سبب بهبود رشد و نمو گیاهان به‌وسیلۀ افزایش میزان جذب عناصر و همچنین بهبود رابطۀ آبی گیاهان و حفاظت از آنان در برابر بیمارگرها می‌گردد. نمونه‌برداری در بهار 1390 از منطقۀ جنگلی کیاسر در بخش شمالی شهرستان دامغان استان سمنان که دارای تنوع گونه‌های گیاهی فراوان است صورت گرفت. تعداد 56 نمونه خاک مرکب از این منطقه جمع‌آوری گردید. بر این اساس، 14 گونۀ گیاهی از درختان این منطقه بررسی شدند و همچنین درصد فراوانی نسبی، درصد تراکم قارچ-ریشه، درصد فراوانی قارچ-ریشه، غنای گونه‌ای و شاخص یکنواختی آنها محاسبه گردید. بیشترین میانگین جمعیت اسپوری مربوط به درخت سپیدار با میانگین 35/1382 اسپور در 300 گرم نمونه خاک تحت بررسی بود و پس از آن به‌ترتیب درختان توسکای قشلاقی با میانگین 69/1372، گوجه‌سبز (آلو) با میانگین 31/1354 و راش با میانگین 35/1338 قرار داشتند. بیشترین میزان فراوانی قارچ-ریشه‌‌‌ای (%F) و میانگین تراکم قارچ-ریشه‌ای (%M) مربوط به گوجه‌سبز به‌ترتیب 35/66 و 79/46 درصد به‌دست آمد؛ درحالی‌که نارون کمترین میزان فراوانی قارچ-ریشه‌ای و میزان تراکم قارچ-ریشه‌ای با میزان به‌ترتیب 69/37 و 63/58 درصد را نشان داد.

کلیدواژه‌ها


عنوان مقاله [English]

Isolation and Identification of Dominant Arbuscular Mycorrhizal Fungi in Some Trees in Region of Kiasar

نویسندگان [English]

  • Amir Modarresi Chahardehi 1
  • Leila Mousavi 2
  • Taha Bakhtkhah Ardeh Jani 3
  • Younes Rezaee Danesh 4
  • Darah Ibrahim 5
1 Industrial Biotechnology Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 Minden, Penang Island, Malaysia
2 School of Industrial Technology, Universiti Sains Malaysia, 11800 Minden, Penang Island, Malaysia.
3 Plant Pathology Department, Faculty of Agriculture, Islamic Azad University, Damghan Branch, Damghan, Semnan Province, Iran
4 Plant Pathology Department, Faculty of Agriculture, Urmia University, Urmia, Iran.
5 Industrial Biotechnology Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, 11800 Minden, Penang Island, Malaysia
چکیده [English]

The symbiotic arbascular mycorrhizal vesicular fungi caused growth improvement of plants and increased uptake some minerals by plants, and also improve the water relations of plants and protect them against diseases. In this study, Kiasar forest area selected due to abundant variety of plant species which located in northern part of Damghan city in Semnan province. About 56 sample collections were done in spring 1390. Almost 14 species of trees in this area were examined for the percentage of relative frequency, density accumulation, accumulation of abundance, species richness and evenness indices were calculated. The highest average of spore population with a mean 1382.35 spores per 300 g soil sample was achieved followed by other soil samples from European black alder, wild myrobalan plum and orientalis beech. The highest rates of prevalence mycorrhizal (%F) and the average of accumulation mycorrhizal density (%M) was belongs to wild myrobalan plum with %66.35 and %46.79, respectively, while the lowest was elm tree with %69.37 and %63.58, respectively. Also, 8 species in species richness value were found in some trees like chestnut, white popular, Caucasian wingnut and melder, while in other soil samples of trees osuch as Ash and wild myrobalan plum were only four species. Of the 14 trees, 10 species of arbuscular mycorrhizal fungi were identified which 8 out of them were Glomus species. The highest relative abundance of species were belongs to G. aggregatum (%29.30) and Gigaspora albida (%9.34), respectively.

کلیدواژه‌ها [English]

  • Arbuscular mycorrhizal fungi (AMF)
  • Kiasar
  • Glomus
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