بررسي توان Chenopodium album در جذب و تجمع سزيم پايدار

Potential of Chenopodium Album for Uptaking and Accumulation of Stable Cesium

اين مطالعه به منظور بررسي توان گونه گياهي Chenopodium album در پالايش سزيم پايدار از محلول ها انجام و الگوي تجمع و شاخص بردباري گياه نسبت به سزيم مورد بررسي قرار گرفت. در روش گياه پالايي براي پالايش محلول هاي حاوي سزيم پايدار، ابتدا گياهان گونه Chenopodium album در شرايط كنترل شده به صورت هايدروپونيك در محلول غذايي هوگلند رشد داده شد و سپس در معرض جذب سزيم از محلول سزيم كلرايد با غلظت هاي متفاوت بين 4/0 تا 4 ميلي گرم بر ليتر سزيم قرار گرفت. در پايان 14 روز تجمع سزيم در بافت گياه، بين 15/2 ± 83/201 تا 21/12 ± 86/1032 ميلي گرم بر كيلوگرم وزن خشك گياه بود. نتايج اين تحقيق نشان مي دهد حداكثر12/2 ± 08/68 % سزيم محلول ها مورد پالايش قرار گرفته كه مـربــوط به پايين ترين غلظت سزيم مي باشد. همچنين گياهان قادر به تجمع سزيم هم در ريشه و هم در برگ ها بوده اند كه نشان مي دهد Chenopodium album مي تواند گزينه مناسبي براي گياه پالايي و جذب سزيم از محلول ها باشد.

Introduction: This study was conducted to evaluate potential of Chenopodium album for remediation of stable cesium from solutions. Cesium accumulation and tolerance in Chenopodium album plants were also investigated. Material and Methods: Using phytoremediation method, hydroponically grown plants were exposed to cesium solutions (0.4-4 mgl-1). Result and Discussion: Cesium accumulation was 201.83 ± 2.15 to 1032.86 ± 12.21 mg kg-1 after 14d. The results indicated that maximum cesium remediation was 68.08 ± 2.12% that occurred in minimum cesium concentration. Plants trans-located cesium in both roots and shoots that indicated Chenopodium album could be used as a potential candidate plant for phytoremediation of cesium.Introduction: This study was conducted to evaluate potential of Chenopodium album for remediation of stable cesium from solutions. Cesium accumulation and tolerance in Chenopodium album plants were also investigated. Material and Methods: Using phytoremediation method, hydroponically grown plants were exposed to cesium solutions (0.4-4 mgl-1). Result and Discussion: Cesium accumulation was 201.83 ± 2.15 to 1032.86 ± 12.21 mg kg-1 after 14d. The results indicated that maximum cesium remediation was 68.08 ± 2.12% that occurred in minimum cesium concentration. Plants trans-located cesium in both roots and shoots that indicated Chenopodium album could be used as a potential candidate plant for phytoremediation of cesium.