Application of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil

Heavy metals are pollutants of great concern due to their toxicity and immutable nature. As a result of human actions such as mining, industrial activity and agricultural practices, heavy metals find their way in to the soil. Phytoremediation is a a cost-effective, non-intrusive, and aesthetically p...

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Autores principales:	Minisha Thalikulangara Madanan, Irfan Khursheed Shah, Ph.D., George K. Varghese, Ph.D., Rajendra K. Kaushal, Ph.D.
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2021
Materias:	Tagetes erecta L. Bioconcentration factor Translocation factor Metal uptake Phytoextraction Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/615940e5617946638c3550f5905315d4
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spelling	oai:doaj.org-article:615940e5617946638c3550f5905315d42021-11-16T04:11:07ZApplication of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil2590-182610.1016/j.enceco.2020.10.007https://doaj.org/article/615940e5617946638c3550f5905315d42021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S259018262030031Xhttps://doaj.org/toc/2590-1826Heavy metals are pollutants of great concern due to their toxicity and immutable nature. As a result of human actions such as mining, industrial activity and agricultural practices, heavy metals find their way in to the soil. Phytoremediation is a a cost-effective, non-intrusive, and aesthetically pleasing technology in which herbaceous plants and trees are used to remediate and remove pollutants from soils. In the present study, potential of Tagetes erecta L. was assessed for phytoremediation of cadmium (Cd), lead (Pb) and zinc (Zn) contaminated lateritic soil. Pot experiments were conducted for various concentrations of heavy metals (ranging from 20 mg/kg to 160 mg/kg). The plant uptake of the heavy metals was analyzed after a 12-week growing period and was determined by analyzing residual heavy metal concentrations in aerial and subterranean parts of the plant by atomic absorption spectrophotometry (AAS). The total uptake of heavy metals by the plant increased with increasing heavy metal concentration in the soil. Considering the plant as a whole, the ability to uptake Zn and Cd was comparable and was significantly higher, approximately 13 times on average than its ability to uptake Pb. At lower concentrations, the ability was slightly higher for Cd, but at higher concentrations, Zn uptake was slightly higher. The order of accumulation of heavy metals in Tagetes erecta L. shoots was in the order of Cd > Zn > Pb, and the same order for roots was Zn > Cd > Pb. The bioconcentration factor (BCF) was greater than 1 for Cd (soil concentration < 160 mg/kg) and Zn (all spike concentrations) and less than 1 for Pb. The translocation factor (TF) was greater than 1 for Cd (soil concentration < 160 mg/kg). Tagetes erecta L. was found to be an effective phytoextractor for Zn and Cd and an excluder for Pb.Minisha Thalikulangara MadananIrfan Khursheed Shah, Ph.D.George K. Varghese, Ph.D.Rajendra K. Kaushal, Ph.D.KeAi Communications Co., Ltd.articleTagetes erecta L.Bioconcentration factorTranslocation factorMetal uptakePhytoextractionEnvironmental technology. Sanitary engineeringTD1-1066ENEnvironmental Chemistry and Ecotoxicology, Vol 3, Iss , Pp 17-22 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Tagetes erecta L. Bioconcentration factor Translocation factor Metal uptake Phytoextraction Environmental technology. Sanitary engineering TD1-1066
spellingShingle	Tagetes erecta L. Bioconcentration factor Translocation factor Metal uptake Phytoextraction Environmental technology. Sanitary engineering TD1-1066 Minisha Thalikulangara Madanan Irfan Khursheed Shah, Ph.D. George K. Varghese, Ph.D. Rajendra K. Kaushal, Ph.D. Application of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil
description	Heavy metals are pollutants of great concern due to their toxicity and immutable nature. As a result of human actions such as mining, industrial activity and agricultural practices, heavy metals find their way in to the soil. Phytoremediation is a a cost-effective, non-intrusive, and aesthetically pleasing technology in which herbaceous plants and trees are used to remediate and remove pollutants from soils. In the present study, potential of Tagetes erecta L. was assessed for phytoremediation of cadmium (Cd), lead (Pb) and zinc (Zn) contaminated lateritic soil. Pot experiments were conducted for various concentrations of heavy metals (ranging from 20 mg/kg to 160 mg/kg). The plant uptake of the heavy metals was analyzed after a 12-week growing period and was determined by analyzing residual heavy metal concentrations in aerial and subterranean parts of the plant by atomic absorption spectrophotometry (AAS). The total uptake of heavy metals by the plant increased with increasing heavy metal concentration in the soil. Considering the plant as a whole, the ability to uptake Zn and Cd was comparable and was significantly higher, approximately 13 times on average than its ability to uptake Pb. At lower concentrations, the ability was slightly higher for Cd, but at higher concentrations, Zn uptake was slightly higher. The order of accumulation of heavy metals in Tagetes erecta L. shoots was in the order of Cd > Zn > Pb, and the same order for roots was Zn > Cd > Pb. The bioconcentration factor (BCF) was greater than 1 for Cd (soil concentration < 160 mg/kg) and Zn (all spike concentrations) and less than 1 for Pb. The translocation factor (TF) was greater than 1 for Cd (soil concentration < 160 mg/kg). Tagetes erecta L. was found to be an effective phytoextractor for Zn and Cd and an excluder for Pb.
format	article
author	Minisha Thalikulangara Madanan Irfan Khursheed Shah, Ph.D. George K. Varghese, Ph.D. Rajendra K. Kaushal, Ph.D.
author_facet	Minisha Thalikulangara Madanan Irfan Khursheed Shah, Ph.D. George K. Varghese, Ph.D. Rajendra K. Kaushal, Ph.D.
author_sort	Minisha Thalikulangara Madanan
title	Application of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil
title_short	Application of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil
title_full	Application of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil
title_fullStr	Application of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil
title_full_unstemmed	Application of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil
title_sort	application of aztec marigold (tagetes erecta l.) for phytoremediation of heavy metal polluted lateritic soil
publisher	KeAi Communications Co., Ltd.
publishDate	2021
url	https://doaj.org/article/615940e5617946638c3550f5905315d4
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Application of Aztec Marigold (Tagetes erecta L.) for phytoremediation of heavy metal polluted lateritic soil

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