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A short-term study on the interaction of bacteria, fungi and endosulfan in soil microcosm
被引:14
作者:
Xie, HuiJun
[2
]
Gao, FuWei
[1
]
Tan, Wei
[2
]
Wang, Shu-Guang
[1
]
机构:
[1] Shandong Univ, Shandong Key Lab Water Pollut Control & Resource, Sch Environm Sci & Engn, Jinan 250100, Peoples R China
[2] Shandong Univ, Environm Res Inst, Jinan 250100, Peoples R China
基金:
美国国家科学基金会;
关键词:
Endosulfan;
Endosulfan sulfate;
Endosulfan diol;
Endosulfan lactone;
Phospholipid fatty acid;
MICROBIAL COMMUNITIES;
ORGANOCHLORINE PESTICIDES;
DEGRADATION;
BIODEGRADATION;
BIOREMEDIATION;
ENRICHMENT;
CULTURE;
D O I:
10.1016/j.scitotenv.2011.10.013
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
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. (C) 2011 Elsevier BM. All rights reserved.
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页码:375 / 379
页数:5
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