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رابطه قارچهای اکتومیکوریز با برخی ویژگیهای شیمی خاک در راشستانهای فریم، استان مازندران | ||
| تحقیقات جنگل و صنوبر ایران | ||
| مقاله 3، دوره 26، شماره 4 - شماره پیاپی 74، دی 1397، صفحه 459-470 اصل مقاله (979.02 K) | ||
| نوع مقاله: علمی- پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijfpr.2018.118577 | ||
| نویسندگان | ||
| حامد آقاجانی1؛ سیدمحمد حجتی* 2؛ محمدعلی تاجیکقنبری3؛ محمدرضا پورمجیدیان2؛ علی برهانی4 | ||
| 1دکترای جنگلشناسی و اکولوژی جنگل، گروه جنگلداری، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران | ||
| 2دانشیار، گروه جنگلداری، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران | ||
| 3دانشیار، گروه گیاهپزشکی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران | ||
| 4استادیار، ایستگاه تحقیقات جنگل و مرتع پاسند، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان مازندران، سازمان تحقیقات، آموزش و ترویج کشاورزی، بهشهر، ایران | ||
| چکیده | ||
| با توجه به نقش مثبت قارچهای اکتومیکوریز در جذب آب و مواد غذایی و انتقال به درختان، شناسایی آنها از اهمیت زیادی برخوردار است. این پژوهش با هدف بررسی ارتباط تنوع قارچهای اکتومیکوریز شناساییشده با برخی ویژگیهای شیمی خاک در سری فلورد جنگلهای فریم استان مازندران انجام شد. در سه دامنه ارتفاعی 300 متری (1200 تا 1500، 1500 تا 1800 و 1800 تا 2100)، 45 درخت راش (Fagus orientalis Lipsky) (در هر طبقه ارتفاعی 15 درخت) انتخاب و نمونهبرداری از ریزریشههای آنها بهعمق 10 سانتیمتر انجام شد. در کنار محل مورد نظر برای برداشت ریشه، یک نمونه به عمق 10 سانتیمتر برای بررسی ویژگیهای شیمیایی خاک نیز برداشت شد. نمونههای ریشه در آزمایشگاه قارچشناسی از طریق استخراج DNA ناحیه ITS nrDNA با استفاده از زوج آغازگرهای ITS1F و ITS4B یا ITS4 تکثیر و توالییابی شده و با نرمافزار BioEdit اصلاح و در NCBI بررسی شدند. نمونههای خاک نیز پس از انتقال به آزمایشگاه، بهمدت دو هفته در هوای آزاد خشک شده و پس از عبور از الکهای دو میلیمتری، مشخصههای شیمی خاک بررسی شدند. بر اساس نتایج بررسی همزیستی اکتومیکوریزی، 10 خانواده مختلف شناسایی شدند و بیشترین همزیستی مربوط به Russulaceae و Cortinariaceae بود. مقدار مشخصههای خاک مانند pH، نیتروژن، فسفر، پتاسیم و کربن در طبقه ارتفاعی اول بیشتر از دو طبقه دیگر بود. همچنین، نتایج تجزیه واریانس و مقایسههای میانگین متغیرهای خاکی در منطقه مورد مطالعه نشان داد که بین طبقههای ارتفاعی از نظر مقدار فسفر، پتاسیم و اسیدیته تفاوت معنیداری وجود داشت. یافتههای این پژوهش مؤید آن است که شرایط رویشگاهی و تنوع گونهای تودههای جنگلی میتوانند بر ویژگیهای خاک و غنای گونهای اکتومیکوریزها و پیرو آن، پویایی بومسازگان جنگل مؤثر باشند. | ||
| کلیدواژهها | ||
| اسیدیته خاک؛ اکولوژی گیاهی؛ پتاسیم؛ جنگلهای هیرکانی؛ سلامت جنگل؛ فسفر | ||
| عنوان مقاله [English] | ||
| The relationship between ectomycorrhizal fungi and some soil chemical properties in beech stands of Farim, Mazandaran province | ||
| نویسندگان [English] | ||
| Hamed Aghajani1؛ Seyyed Mohammad Hodjati2؛ Mohammad Ali Tajick-Ghanbari3؛ Mohammad Reza Pourmajidian2؛ Ali Borhani4 | ||
| 1Ph.D. of Silviculture and Forest Ecology, Department of Forestry, Sari Agriculture Sciences and Natural Resources University, Sari, Iran | ||
| 2Associate Prof., Department of Forestry, Sari Agriculture Sciences and Natural Resources University, Sari, Iran | ||
| 3Associate Prof., Department of Plant Protection, Sari Agriculture Sciences and Natural Resources University, Sari, Iran | ||
| 4Assistant Prof., Pasand Forest and Rangeland Research Station, Agricultural and Natural Resources Research and Education Center of Mazandaran, AREEO, Behshahr, Iran | ||
| چکیده [English] | ||
| According to the positive role and symbiosis of ectomycorrhizal fungi for absorbing water and nutrition and transferring to trees, identification of them are of great importance. The aim of this study was to investigate the relationship between recognized ectomycorrhizal fungi and some soil chemical properties in the Flourd series of Farim forests, Mazandaran province. Forty five beech trees were measured in three elevation classes (1200-1500, 1500-1800, and 1800-2100m a.s.l.) and samples were taken from the root tips at a depth of 10 cm. ITS nrDNA was replicated and sequenced using ITS1F and ITS4B or ITS4 primer pairs, then was corrected by BioEdit software and studied in NCBI. After specified the desired tree for sampling root tips, a sample was taken next to the same tree at a depth of 10 cm to examine of soil chemical properties. The results of this study showed that 10 different families were identified that the most symbiosis was in the Russulaceae and Cortinariaceae families. The results showed that edaphic factors such as soil pH, N, P, K, and C in the first elevation were higher than two other elevations. Moreover, the results of statistical analysis showed that P, K, and pH had a significant difference. Our results suggested that forest site conditions and tree diversity can influence on soil properties and the richness of ectomycorrhizal fungi and consequently on forest ecosystem dynamic. | ||
| کلیدواژهها [English] | ||
| Forest health, Hyrcanian forests؛ phosphor؛ plant ecology؛ potassium؛ soil pH | ||
| مراجع | ||
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