Biotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria

Abstract Pyrene and chromium (Cr(VI)) are persistent pollutants and cause serious environmental problems because they are toxic to organisms and difficult to remediate. The toxicity of pyrene and Cr(VI) to three crops (cotton, soybean and maize) was confirmed by the significant decrease in root and...

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Autores principales:	Shimei Ge, Junxia Gu, Wenjing Ai, Xinjiao Dong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9a0c30166cdd47e8a43576ccd2b14e31
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id	oai:doaj.org-article:9a0c30166cdd47e8a43576ccd2b14e31
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spelling	oai:doaj.org-article:9a0c30166cdd47e8a43576ccd2b14e312021-12-02T15:13:59ZBiotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria10.1038/s41598-020-80053-22045-2322https://doaj.org/article/9a0c30166cdd47e8a43576ccd2b14e312021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80053-2https://doaj.org/toc/2045-2322Abstract Pyrene and chromium (Cr(VI)) are persistent pollutants and cause serious environmental problems because they are toxic to organisms and difficult to remediate. The toxicity of pyrene and Cr(VI) to three crops (cotton, soybean and maize) was confirmed by the significant decrease in root and shoot biomass during growth in pyrene/Cr(VI) contaminated hydroponic solution. Two bacterial strains capable of simultaneous pyrene biodegradation and Cr(VI) reduction were isolated and identified as Serratia sp. and Arthrobacter sp. A mixture of the isolated strains at a ratio of 1:1 was more efficient for biotreatment of pyrene and Cr(VI) than either strain alone; the mixture effectively carried out bioremediation of contaminated water in a hydroponic system mainly through pyrene biodegradation and Cr(VI) reduction. Application of these isolates shows potential for practical microbial remediation of pyrene and Cr(VI) combined water pollution.Shimei GeJunxia GuWenjing AiXinjiao DongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shimei Ge Junxia Gu Wenjing Ai Xinjiao Dong Biotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria
description	Abstract Pyrene and chromium (Cr(VI)) are persistent pollutants and cause serious environmental problems because they are toxic to organisms and difficult to remediate. The toxicity of pyrene and Cr(VI) to three crops (cotton, soybean and maize) was confirmed by the significant decrease in root and shoot biomass during growth in pyrene/Cr(VI) contaminated hydroponic solution. Two bacterial strains capable of simultaneous pyrene biodegradation and Cr(VI) reduction were isolated and identified as Serratia sp. and Arthrobacter sp. A mixture of the isolated strains at a ratio of 1:1 was more efficient for biotreatment of pyrene and Cr(VI) than either strain alone; the mixture effectively carried out bioremediation of contaminated water in a hydroponic system mainly through pyrene biodegradation and Cr(VI) reduction. Application of these isolates shows potential for practical microbial remediation of pyrene and Cr(VI) combined water pollution.
format	article
author	Shimei Ge Junxia Gu Wenjing Ai Xinjiao Dong
author_facet	Shimei Ge Junxia Gu Wenjing Ai Xinjiao Dong
author_sort	Shimei Ge
title	Biotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria
title_short	Biotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria
title_full	Biotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria
title_fullStr	Biotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria
title_full_unstemmed	Biotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria
title_sort	biotreatment of pyrene and cr(vi) combined water pollution by mixed bacteria
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9a0c30166cdd47e8a43576ccd2b14e31
work_keys_str_mv	AT shimeige biotreatmentofpyreneandcrvicombinedwaterpollutionbymixedbacteria AT junxiagu biotreatmentofpyreneandcrvicombinedwaterpollutionbymixedbacteria AT wenjingai biotreatmentofpyreneandcrvicombinedwaterpollutionbymixedbacteria AT xinjiaodong biotreatmentofpyreneandcrvicombinedwaterpollutionbymixedbacteria
_version_	1718387586467102720

Biotreatment of pyrene and Cr(VI) combined water pollution by mixed bacteria

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