دوره 5، شماره 2 - ( 6-1397 )                   جلد 5 شماره 2 صفحات 105-95 | برگشت به فهرست نسخه ها


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Mohebi Bijarpas M, Rostami Shahraji T, samizadeh Lahiji H. Study of antioxidant enzymes activity of Fagus orientalis Lipesk to environmental changes along altitude gradient (Case Study: Guilan forests, Masal). nbr 2018; 5 (2) :95-105
URL: http://nbr.khu.ac.ir/article-1-3074-fa.html
محبی بیجارپسی محبوبه، رستمی شاهراجی تیمور، سمیع زاده لاهیجی حبیب الله. بررسی فعالیت آنزیم های آنتی اکسیدان راش شرقی نسبت به تغییرات محیطی در طول گرادیان ارتفاعی (مطالعه موردی: جنگلهای گیلان، ماسال). یافته‌ های نوین در علوم زیستی. 1397; 5 (2) :95-105

URL: http://nbr.khu.ac.ir/article-1-3074-fa.html


دانشگاه گیلان ، hsamizadeh@yahoo.com
چکیده:   (5298 مشاهده)
به منظور درک مکانیسم سازگاری اکوفیزیولوژی راش شرقی Fagus orientalis Lipesky نسبت به تغییرات ارتفاعی، میزان فعالیت آنزیم های آنتی اکسیدانی شامل پراکسیداز، کاتالاز و آسکوربات پراکسیداز در برگ های درختان راش شرقی در ارتفاعات مختلف (700 متر، 1200 متر و 170 متر ارتفاع از سطح دریا) در جنگلهای گیلان مورد مطالعه قرار گرفت. نمونه برداری از برگ های واقع در نمیه شمالی و جنوبی تاج درختان سالم و بالغ راش شرقی انجام شد. نتایج تجزیه واریانس نشان داد که اختلاف معنی داری در بین و درون جمعیت برای فعالیت آنزیم های کاتالاز و پراکسیداز در سطح احتمال 05/0 وجود داشت و با افزایش ارتفاع، میزان فعالیت کاتالاز و پراکسیداز افزایش یافت، اما فعالیت آنزیم آسکوربات پراکسیداز ابتدا به صورت افزایشی و از ارتفاع میانه با افزایش ارتفاع میزان فعالیت  آن کاهش یافت. همچنین نتایج نشان داد که فعالیت آنزیمی پراکسیداز و کاتالاز در برگ های جمع آوری شده از نمیه شمالی درختان نسبت به برگ های جمع آوری شده از  نیمه جنوبی درختان بیشتر بود. 
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نوع مطالعه: مقاله پژوهشی | موضوع مقاله: علوم گیاهی
دریافت: 1396/11/2 | ویرایش نهایی: 1400/3/11 | پذیرش: 1397/2/4 | انتشار: 1397/2/4 | انتشار الکترونیک: 1397/2/4

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