The present in vivo pot culture study showed hexavalent chromium (Cr+6) induced phytotoxic impacts and its translocation potential i. 21 days old sesban (Sesbania sesban L. Merrill.) seedlings. Cr+6 showed significant growth retardation i. 21 days old sesban (Sesbania sesban L. Merrill.) seedlings. Germination of seeds a. 10,000 mg L-1 of Cr+6 exhibi. 80% inhibition in germination. Seedling survival wa. 67% afte. 7 days of seedling exposure t. 300 mg kg-1 of Cr+6. Shoot phytotoxicity was enhanced fro. 6% t. 31% with elevated supply of Cr+6 fro. 10 mg kg-1 t. 300 mg kg-1. Elevated supply of Cr+6 exhibited increasing and decreasing trends in % phytotoxicity and seedling tolerance index, respectively. Elevated supply of chromium showed decreased chlorophyll and catalase activities. Peroxidase activities in roots and leaves were significantly higher at increased supply of Cr+6. Cr bioconcentration in roots was nearl. 10 times more than stems whereas leaves showed nearly double accumulation than stems. Tissue specific chromium bioaccumulation showe. 53 an. 12 times more in roots and shoots respectively a. 300 mg kg-1 Cr+6 than control. The present study reveals potential of sesban for effective Cr translocation from roots to shoots as evident from their translocation factor and Total Accumulation Rate values.
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Mohanty, M., Pradhan, C. & Patra, H.K. Chromium Translocation, Concentration and its Phytotoxic Impacts in in Vivo Grown Seedlings of Sesbania Sesban L. Merrill. BIOLOGIA FUTURA 66, 80–92 (2015). https://doi.org/10.1556/ABiol.66.2015.1.7
- Antioxidative enzymes