A short-term study on the interaction of bacteria, fungi and endosulfan in soil microcosm

Endosulfan is one of the few organic chlorine insecticides still in use today in many developing countries. It has medium toxicity for fish and aquatic invertebrates. In this study, we added different concentrations of endosulfan to a series of soil samples collected from Baihua Park in Jinan, Shand...

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Veröffentlicht in:The Science of the total environment 2011-12, Vol.412, p.375-379
Hauptverfasser: Xie, HuiJun, Gao, FuWei, Tan, Wei, Wang, Shu-Guang
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Tan, Wei
Wang, Shu-Guang
description Endosulfan is one of the few organic chlorine insecticides still in use today in many developing countries. It has medium toxicity for fish and aquatic invertebrates. In this study, we added different concentrations of endosulfan to a series of soil samples collected from Baihua Park in Jinan, Shandong Province, China. Interactions of exogenous endosulfan, bacteria and fungi were analyzed by monitoring the changes in microbe-specific phospholipid fatty acids (PLFA), residual endosulfan and its metabolites which include; endosulfan sulfate, endosulfan lactone and endosulfan diol during a 9 days incubation period. Our results showed that endosulfan reduced fungi biomass by 47% on average after 9 days, while bacteria biomass increased 76% on average. In addition, we found that endosulfan degraded 8.62% in natural soil (NE), 5.51% in strepolin soil (SSE) and 2.47% in sterile soil (SE). Further analysis of the endosulfan metabolites in NE and SSE, revealed that the amount of endosulfan sulfate (ES) significantly increased and that of endosulfan lactone (EL) slightly decreased in both samples after 9 days. However, that of endosulfan diol (ED) increased in NE and decreased in SSE. After collective analysis our data demonstrated that fungi and bacteria responded differently to exogeous endosulfan, in a way that could promote the formation of endosulfan diol during endosulfan degradation. ► We designed a series of soil with different microbial community and endosulfan concentration. ► We examine the change of endosulfan, endosulfan metabolites and PLFA of fungi and bacteria. ► Endosulfan do degrade in short term and have a certain level of toxicity to microbe. ► Bacteria play a batter role in endosulfan biodegradation than fungi by forming more endosulfan diol.
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It has medium toxicity for fish and aquatic invertebrates. In this study, we added different concentrations of endosulfan to a series of soil samples collected from Baihua Park in Jinan, Shandong Province, China. Interactions of exogenous endosulfan, bacteria and fungi were analyzed by monitoring the changes in microbe-specific phospholipid fatty acids (PLFA), residual endosulfan and its metabolites which include; endosulfan sulfate, endosulfan lactone and endosulfan diol during a 9 days incubation period. Our results showed that endosulfan reduced fungi biomass by 47% on average after 9 days, while bacteria biomass increased 76% on average. In addition, we found that endosulfan degraded 8.62% in natural soil (NE), 5.51% in strepolin soil (SSE) and 2.47% in sterile soil (SE). 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After collective analysis our data demonstrated that fungi and bacteria responded differently to exogeous endosulfan, in a way that could promote the formation of endosulfan diol during endosulfan degradation. ► We designed a series of soil with different microbial community and endosulfan concentration. ► We examine the change of endosulfan, endosulfan metabolites and PLFA of fungi and bacteria. ► Endosulfan do degrade in short term and have a certain level of toxicity to microbe. ► Bacteria play a batter role in endosulfan biodegradation than fungi by forming more endosulfan diol.</description><subject>Applied sciences</subject><subject>aquatic invertebrates</subject><subject>Bacteria</subject><subject>Bacteria - drug effects</subject><subject>Bacteria - metabolism</subject><subject>Biodegradation, Environmental</subject><subject>Biological and physicochemical properties of pollutants. 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Interaction in the soil</topic><topic>Biomass</topic><topic>China</topic><topic>chlorine</topic><topic>Chromatography, Gas</topic><topic>developing countries</topic><topic>Diols</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Endosulfan</topic><topic>Endosulfan - metabolism</topic><topic>Endosulfan - toxicity</topic><topic>Endosulfan diol</topic><topic>Endosulfan lactone</topic><topic>Endosulfan sulfate</topic><topic>Engineering and environment geology. 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It has medium toxicity for fish and aquatic invertebrates. In this study, we added different concentrations of endosulfan to a series of soil samples collected from Baihua Park in Jinan, Shandong Province, China. Interactions of exogenous endosulfan, bacteria and fungi were analyzed by monitoring the changes in microbe-specific phospholipid fatty acids (PLFA), residual endosulfan and its metabolites which include; endosulfan sulfate, endosulfan lactone and endosulfan diol during a 9 days incubation period. Our results showed that endosulfan reduced fungi biomass by 47% on average after 9 days, while bacteria biomass increased 76% on average. In addition, we found that endosulfan degraded 8.62% in natural soil (NE), 5.51% in strepolin soil (SSE) and 2.47% in sterile soil (SE). Further analysis of the endosulfan metabolites in NE and SSE, revealed that the amount of endosulfan sulfate (ES) significantly increased and that of endosulfan lactone (EL) slightly decreased in both samples after 9 days. However, that of endosulfan diol (ED) increased in NE and decreased in SSE. After collective analysis our data demonstrated that fungi and bacteria responded differently to exogeous endosulfan, in a way that could promote the formation of endosulfan diol during endosulfan degradation. ► We designed a series of soil with different microbial community and endosulfan concentration. ► We examine the change of endosulfan, endosulfan metabolites and PLFA of fungi and bacteria. ► Endosulfan do degrade in short term and have a certain level of toxicity to microbe. ► Bacteria play a batter role in endosulfan biodegradation than fungi by forming more endosulfan diol.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><pmid>22075157</pmid><doi>10.1016/j.scitotenv.2011.10.013</doi><tpages>5</tpages></addata></record>
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subjects Applied sciences
aquatic invertebrates
Bacteria
Bacteria - drug effects
Bacteria - metabolism
Biodegradation, Environmental
Biological and physicochemical properties of pollutants. Interaction in the soil
Biomass
China
chlorine
Chromatography, Gas
developing countries
Diols
Earth sciences
Earth, ocean, space
Endosulfan
Endosulfan - metabolism
Endosulfan - toxicity
Endosulfan diol
Endosulfan lactone
Endosulfan sulfate
Engineering and environment geology. Geothermics
Exact sciences and technology
fatty acids
Fatty Acids - metabolism
fish
Fungi
Fungi - drug effects
Fungi - metabolism
Gas Chromatography-Mass Spectrometry
incubation period
Insecticides - metabolism
Insecticides - toxicity
Metabolites
Microorganisms
parks
Phospholipid fatty acid
Phospholipids - metabolism
Pollution
Pollution, environment geology
soil
Soil (material)
Soil - analysis
Soil and sediments pollution
soil ecology
soil fungi
Soil Microbiology
Soil Pollutants - metabolism
Soil Pollutants - toxicity
soil sampling
Sulfates
toxicity
title A short-term study on the interaction of bacteria, fungi and endosulfan in soil microcosm
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