Influence of microbes on the mobilization, toxicity and biomethylation of arsenic in soil
Influence of microbes on the mobilization, toxicity and biomethylation of arsenic in soil
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DOI：
10.1016/s0048-9697(99)00269-7
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发表时间：
1999-09-15
影响因子：
9.8
通讯作者：
Kairesalo, T
中科院分区：
文献类型：
--
作者：
Turpeinen, R;Pantsar-Kallio, M;Kairesalo, T
为了解微生物活动对土壤中砷的活化和形态的影响，在实验室条件下，通过微宇宙实验研究了砷的循环。特别注意砷的生物甲基化和无机和有机砷物种对微生物的毒性。与甲醛抑制对照相比，微生物增强了土壤中砷的动员19-24%。在5天的培养过程中，微生物形成的溶解甲基化砷物种很低（< 0.1%）。尽管甲基化可能是一种解毒方法，但在测试的土壤中，它的重要性不大。(C)1999 Elsevier Science B. V.保留所有权利。
To understand the effects of microbial activity on the mobilization and speciation of arsenic in soil, the cycling of arsenic was studied in microcosm experiments under laboratory conditions. Particular attention was paid to the biomethylation of arsenic and to the toxicity of inorganic and organic arsenic species for microbes. Microbes enhanced mobilization of arsenic from soil by 19-24% compared to formaldehyde inhibited controls. Formation of dissolved methylated arsenic species by microbes was low (< 0.1%) during the 5-day incubation. Even though methylation may function as a detoxification method, it was of minor importance in the soil tested. (C) 1999 Elsevier Science B.V. All rights reserved.