Reduction of lead accumulation by ethylenediamine tetraacetic acid and nitrilo triacetic acid in okra (Abelmoschus esculentus L.) grown in sewage-irrigated soil

The effects of chelating agents on metal uptake in plants were investigated by studying the effects of EDTA and nitrilotriacetic acid (NTA) on okra (Abelmoschus esculentus) grown on soil containing lead concentrations of 0-1000 ug per g and irrigated with sewage water. Plants treated with lead had h...

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Veröffentlicht in:	Bulletin of environmental contamination and toxicology 1993-07, Vol.51 (1), p.40-45
1. Verfasser:	Denduluri, S
Format:	Artikel
Sprache:	eng
Schlagworte:	Agriculture Agronomy. Soil science and plant productions Biological and medical sciences Chelating Agents - pharmacology Edetic Acid - pharmacology Fundamental and applied biological sciences. Psychology Lead - metabolism Nitrilotriacetic Acid - pharmacology Non agrochemicals pollutants Phytopathology. Animal pests. Plant and forest protection Plants - drug effects Plants - metabolism Pollution effects and side effects of agrochemicals on crop plants and forest trees. Other anthropogenic factors Pollution effects. Side effects of agrochemicals Sewage
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Zusammenfassung:	The effects of chelating agents on metal uptake in plants were investigated by studying the effects of EDTA and nitrilotriacetic acid (NTA) on okra (Abelmoschus esculentus) grown on soil containing lead concentrations of 0-1000 ug per g and irrigated with sewage water. Plants treated with lead had high levels of accumulation in the roots. The application of chelating agents significantly reduced the lead uptake. This was attributed to the formation of stable metal-chelate complexes which were poorly absorbed by plants. EDTA was the more effective chelating agent in reducing lead uptake.
ISSN:	0007-4861 1432-0800
DOI:	10.1007/BF00200998