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Evaluation of Lead and chromium tolerance and accumulation level in Gomphrena celosoides: A novel metal accumulator from lead acid battery waste contaminated site in Nigeria

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Title Evaluation of Lead and chromium tolerance and accumulation level in Gomphrena celosoides: A novel metal accumulator from lead acid battery waste contaminated site in Nigeria
 
Creator Adejumo, Sifau A.
Tiwar, Sarita
Thul, Sanjog
Sarangi, Bijaya Ketan
 
Subject Environmental Biotechnology
Hevey Metals
 
Description Biology, tolerance, and metal (Pb and Cr) accumulating ability of Gomphrena celosoides were studied under hydroponic conditions. The seedlings were raised in Hoagland’s solution containing different concentrations of Pb (0, 500, 1000, 1500, 2000, 3000, 4000, and 5000mg l�1) and Cr (0, 50, 100, 150, 200, 300, and 400mg l�1). Biomass and metal accumulation in different plant
parts were determined at seven (7) and fourteen (14) days after stress. Antioxidant enzyme activities, protein, and proline contents were estimated in stressed and unstressed plants. Gomphrena celosoides was able to tolerate Pb and Cr concentrations up to 4000 and 100mg l�1, respectively in hydroponic solution. Metal accumulation was concentration and duration dependent with the highest Pb (21,127.90 and 117,985.29mg kg�1) and Cr (3130.85 and 2428.90mg kg�1) in shoot and root, respectively found in the plants exposed to 5000mg l�1 Pb and 400mg l�1 Cr for 14 days. Proline, antioxidant enzyme activities, and protein contents were the highest in plant exposed to higher Pb and Cr concentrations for 7 and 14 days. Gomphrena celosoides could be considered as Pb and Cr accumulator with proline and increase in antioxidant enzyme activities being the tolerance mechanisms.
 
Publisher Taylor and Francis
 
Date 2019-07
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1291/1/Gomphrena%20celosoidesT%26F.pdf
Adejumo, Sifau A. and Tiwar, Sarita and Thul, Sanjog and Sarangi, Bijaya Ketan (2019) Evaluation of Lead and chromium tolerance and accumulation level in Gomphrena celosoides: A novel metal accumulator from lead acid battery waste contaminated site in Nigeria. International Journal of Phytoremediation, 21 (13). pp. 1341-1355. ISSN 1522-6514 (P); 1549-7879 (E)
 
Relation https://www.tandfonline.com/loi/bijp20
http://neeri.csircentral.net/1291/