Lead uptake, bioaccumulation and tolerance mechanisms in summer savory (Satureja hortensis L. )

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Azizollahi Zahra; GHADERIAN SEYED MAJID; Ghotbi Ravandi Ali Akbar

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Journal Paper

Paper Information

Journal: JOURNAL OF PLANT PROCESS AND FUNCTION Year:2019 | Volume:8 | Issue:31 Page(s): 63-75

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Title

Lead uptake, bioaccumulation and tolerance mechanisms in summer savory (Satureja hortensis L. )

Author(s)

Azizollahi Zahra | GHADERIAN SEYED MAJID | Ghotbi Ravandi Ali Akbar | Issue Writer Certificate

Keywords

Antioxidant enzymes

Heavy metals

Lead

Medicinal plants

Phytoremediation

Satureja hortensis

Abstract

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 prefers to be 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 root 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.

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APA: Copy

Azizollahi, Zahra, GHADERIAN, SEYED MAJID, & Ghotbi Ravandi, Ali Akbar. (2019). Lead uptake, bioaccumulation and tolerance mechanisms in summer savory (Satureja hortensis L. ). JOURNAL OF PLANT PROCESS AND FUNCTION, 8(31), 63-75. SID. https://sid.ir/paper/771356/en

Vancouver: Copy

Azizollahi Zahra, GHADERIAN SEYED MAJID, Ghotbi Ravandi Ali Akbar. Lead uptake, bioaccumulation and tolerance mechanisms in summer savory (Satureja hortensis L. ). JOURNAL OF PLANT PROCESS AND FUNCTION[Internet]. 2019;8(31):63-75. Available from: https://sid.ir/paper/771356/en

IEEE: Copy

Zahra Azizollahi, SEYED MAJID GHADERIAN, and Ali Akbar Ghotbi Ravandi, “Lead uptake, bioaccumulation and tolerance mechanisms in summer savory (Satureja hortensis L. ),” JOURNAL OF PLANT PROCESS AND FUNCTION, vol. 8, no. 31, pp. 63–75, 2019, [Online]. Available: https://sid.ir/paper/771356/en

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