جلد 8، شماره 31 - ( جلد 8 شماره31 1398 )                   جلد 8 شماره 31 صفحات 75-63 | برگشت به فهرست نسخه ها

XML English Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Ghotbi-Ravandi A A, Ghaderian S M, Azizollahi Z. Lead uptake, bioaccumulation and tolerance in summer savory (Satureja hortensis L.). Plant Process and Function 2019; 8 (31) :63-75
URL: http://jispp.iut.ac.ir/article-1-1197-fa.html
Lead uptake, bioaccumulation and tolerance in summer savory (Satureja hortensis L.). فرآیند و کارکرد گیاهی. 1398; 8 (31) :63-75

URL: http://jispp.iut.ac.ir/article-1-1197-fa.html


چکیده:   (2068 مشاهده)
The objective of this study was to determine the effects of lead (Pb) exposure on bioaccumulation, growth, and tolerance mechanisms in summer savory (Satureja hortensis L.). Plants were subjected to different levels of Pb concentrations including 0 (control), 5, 10, 25, 50 and 100 mg L-1 in growing medium. Pb treatment led to significant increase in root and shoot Pb content. Calculation of BF, TF and TC revealed that Pb preferably accumulated in roots of S. hortensis and root to shoot transport was effectively restricted. Pb toxicity negatively affected plant growth as indicated by significant decrease in plant dry weight as well as roots and shoot length. Pb stress resulted in significant decrease in chlorophyll-a, chlorophyll-b and total chlorophyll content, whereas proline, soluble and reducing carbohydrates and anthocyanin content significantly increased as a result of Pb exposure. Specific activity of antioxidant enzymes including catalase and ascorbate peroxidase continuously increased as concentration of Pb in growing medium elevated. Based on our findings, due to high potential for Pb accumulation in root, S. hortensis may offer a feasible tool for phytostabilization purposes in mildly Pb contaminated soils.
 
متن کامل [PDF 468 kb]   (737 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: تنش فلزات سنگین
دریافت: 1397/11/7 | پذیرش: 1398/2/18 | انتشار: 1398/7/1

بازنشر اطلاعات
Creative Commons License این مقاله تحت شرایط Creative Commons Attribution-NonCommercial 4.0 International License قابل بازنشر است.

کلیه حقوق این وب سایت متعلق به فرآیند و کارکرد گیاهی می باشد.

طراحی و برنامه نویسی : یکتاوب افزار شرق

© 2024 CC BY-NC 4.0 | Journal of Plant Process and Function

Designed & Developed by : Yektaweb