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首页> 外文期刊>International Biodeterioration & Biodegradation >Removal of of pyrene in simulated wetland by joint application of Kyllinga brevifolia Rottb. and immobilized microbes
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Removal of of pyrene in simulated wetland by joint application of Kyllinga brevifolia Rottb. and immobilized microbes

机译：联合应用Kyllinga brevifolia Rottb去除模拟湿地中的pyr。和固定化的微生物

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摘要

The objectives of this study were to evaluate the effects of plant and immobilized microbes on pyrene removal and soil microbial functional diversity of co-contaminated soil. The results indicated that the dissipation ratios of pyrene in the soil with plant (P), soil with immobilized microbes (IM) and soil with both of them(PIM) were 51.5 +/- 0.69%, 55.2 +/- 3.8%, 63.2 +/- 1.29% respectively, and were higher than CK (31.2 +/- 1.5%) with neither of them. Soil microbial functional diversity was assessed by the community level physiological profiles (CLPP) using Biolog Eco-plates. The Biolog results revealed that the metabolic intensity in the rhizospheric soil marked P-R and PIM-R was significantly higher than that of non-rhizospheric soil and the CK during the incubation period. A similar variation in the diversity indexes (Shannon, Simpson and McIntosh) was observed. Principal component analysis (PCA) of the distribution of carbon substrate utilization for all treatments suggests that the microbial community catabolic diversity is different. Among the carbon utilization profile, carbohydrates were the main carbon source of the sample soil and IM increased the potential utilization of two substrate groups (phenols and carbohydrates) more strongly than that of the other groups. (C) 2015 Elsevier Ltd. All rights reserved.
机译：这项研究的目的是评估植物和固定化微生物对共污染土壤pyr的去除和土壤微生物功能多样性的影响。结果表明，in在植物（P），固定化土壤（IM）和土壤（PIM）中的耗散率分别为51.5 +/- 0.69％，55.2 +/- 3.8％，63.2两者均分别为+/- 1.29％和高于CK（31.2 +/- 1.5％）。使用Biolog Eco-plates通过群落水平的生理概况（CLPP）评估了土壤微生物的功能多样性。 Biolog结果表明，在潜伏期，根际土壤中标记为P-R和PIM-R的代谢强度显着高于非根际土壤和CK。多样性指数（Shannon，Simpson和McIntosh）的变化也相似。所有处理碳底物利用率分布的主成分分析（PCA）表明，微生物群落分解代谢多样性不同。在碳利用曲线中，碳水化合物是样本土壤的主要碳源，IM大大提高了两个底物组（酚和碳水化合物）的潜在利用率，远高于其他基团。 （C）2015 Elsevier Ltd.保留所有权利。

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