Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil

ABSTRACT Land treatment of crude oil is used by the oil industry, since it has been recognized that hydrocarbons (HC) can be metabolized by the indigenous microbial community of soil. The crude oil biodegradation in agricultural soil was studied for 12-mo to determine the HC biodegradation and leach...

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Autor principal:	Abdul-Ameer Ali,Wasen
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:	Agricultural soil bacteria biodegradation crude oil fungi
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200266
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spelling	oai:scielo:S0718-583920190002002662019-05-14Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soilAbdul-Ameer Ali,Wasen Agricultural soil bacteria biodegradation crude oil fungi ABSTRACT Land treatment of crude oil is used by the oil industry, since it has been recognized that hydrocarbons (HC) can be metabolized by the indigenous microbial community of soil. The crude oil biodegradation in agricultural soil was studied for 12-mo to determine the HC biodegradation and leaching, the effect of HC on barley productivity and soil properties, and the potential for HC uptake in the plant. Concentration and composition of HC in the soil were periodically determined at a depth of 0 to 75 cm. The HC concentration decreased over time due mainly to the microbial degradation. At the end, 12% of the primary crude oil amount remained constant in the soil. A vertical migration, leaching and metabolic products of HC into subsoil occurred. The HC have changed soil fertility. Barley has been successfully cultivated in soil but the HC reduced some plant growth parameters. However, HC were not detected in plant seeds. Many of oil-utilizing bacteria and fungi were isolated from soil. The HC biodegradation potential of oil polluted soil (6% to 66%) were higher than of unpolluted one (4% to 53%). The bacteria (22% to 66%) were more active than fungi (4% to 46%) in HC biodegradation. The study demonstrated that agricultural lands with low rates of oil contamination allows the growth of plants. They ensure high efficiency of HC biodegradation. Vertical infiltration plays an important role in HC removing from soil. Alkanes were completely assimilated by microorganisms and polar compounds were more resistant to microbial attack.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.2 20192019-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200266en10.4067/S0718-58392019000200266
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Agricultural soil bacteria biodegradation crude oil fungi
spellingShingle	Agricultural soil bacteria biodegradation crude oil fungi Abdul-Ameer Ali,Wasen Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil
description	ABSTRACT Land treatment of crude oil is used by the oil industry, since it has been recognized that hydrocarbons (HC) can be metabolized by the indigenous microbial community of soil. The crude oil biodegradation in agricultural soil was studied for 12-mo to determine the HC biodegradation and leaching, the effect of HC on barley productivity and soil properties, and the potential for HC uptake in the plant. Concentration and composition of HC in the soil were periodically determined at a depth of 0 to 75 cm. The HC concentration decreased over time due mainly to the microbial degradation. At the end, 12% of the primary crude oil amount remained constant in the soil. A vertical migration, leaching and metabolic products of HC into subsoil occurred. The HC have changed soil fertility. Barley has been successfully cultivated in soil but the HC reduced some plant growth parameters. However, HC were not detected in plant seeds. Many of oil-utilizing bacteria and fungi were isolated from soil. The HC biodegradation potential of oil polluted soil (6% to 66%) were higher than of unpolluted one (4% to 53%). The bacteria (22% to 66%) were more active than fungi (4% to 46%) in HC biodegradation. The study demonstrated that agricultural lands with low rates of oil contamination allows the growth of plants. They ensure high efficiency of HC biodegradation. Vertical infiltration plays an important role in HC removing from soil. Alkanes were completely assimilated by microorganisms and polar compounds were more resistant to microbial attack.
author	Abdul-Ameer Ali,Wasen
author_facet	Abdul-Ameer Ali,Wasen
author_sort	Abdul-Ameer Ali,Wasen
title	Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil
title_short	Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil
title_full	Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil
title_fullStr	Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil
title_full_unstemmed	Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil
title_sort	biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200266
work_keys_str_mv	AT abdulameeraliwasen biodegradationandphytotoxicityofcrudeoilhydrocarbonsinanagriculturalsoil
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Biodegradation and phytotoxicity of crude oil hydrocarbons in an agricultural soil

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