The effect of zinc on the growth and physiological and biochemical parameters in seedlings of Eruca sativa (L.) (Rocket)

• Autorzy: Ozdener Y. , Aydin B. K.
• Języki publikacji: EN

Abstrakty

EN

Eruca sativa seedlings were treated with different Zn concentrations (0, 250, 500, 1,000, 2,000 µg g⁻¹ dried growth medium) under controlled conditions. The seedlings were harvested 20 days after Zn treatment. Physiological parameters, such as root and shoot length, fresh and dry weight, were measured and Zn content of roots and shoots was determined. Furthermore, various biochemical parameters were studied on E. sativa leaves: enzymatic antioxidants, such as superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (POD), ascorbate peroxidase (APX), and non-enzymatic antioxidants, such as ascorbate, non-protein thiols. Malondialdehyde, which is an index of lipid peroxidation, was assayed. Zn treatment did not have any significant effect on fresh and dry weights, whereas 500 µg g⁻¹ Zn increased root growth significantly (p<0.05). Zn accumulated in roots 2–8 times more than it did in leaves. Lipid peroxidation increased in proportion with the increase in Zn. Although a decrease in SOD and CAT activities at increased Zn was found, a significant increase in APX and POD was observed at 500 and 1,000 µg g⁻¹ Zn, respectively. In addition, an increase in the amounts of non-protein thiols and total AsA (Ascorbate) was observed with the increase in Zn.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2010
• Tom: 32
• Numer: 3
• Opis fizyczny: p.469-476,fig.,ref.

Twórcy

autor

Ozdener Y.

• Department of Biology, Faculty of Sciences and Arts, University of Ondokuz Mayis, Kurupelit, 55139 Samsun, Turkey

autor

Aydin B. K.

• Department of Biology, Faculty of Science and Arts, University of Amasya, 05100 Amasya, Turkey

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