外生菌根真菌菌丝体对蒽的生物吸附特性。

Biosorption characteristics of ectomycorrhizal fungal mycelium for anthracene.

机构信息

College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.

出版信息

Biomed Environ Sci. 2010 Oct;23(5):378-83. doi: 10.1016/S0895-3988(10)60079-7.

DOI:10.1016/S0895-3988(10)60079-7

PMID:21112486

Abstract

OBJECTIVE

To investigate the potential of Gomphidius viscidus, a kind of ectomycorrhizal fungi, for phytoremediation of anthracene in soil.

METHODS

Absorptioe changes of micro-habitat were studied in detail.

CONCLUSION

Ectomycorrhizal plants have a strong potential for remediation of polycyclic aromatic hydrocarn characteristics of both active and inactivated mycelia.

RESULTS

A high calculated adsorption capacity of 1,886.79 mg/g and 1,515.15 mg/g at 25 °C, pH 6.0 for active and inactivated mycelia respectively, was obtained based on Langmuir model. The ANT biosorption was more ideally characterized by the Langmuir model than by the Freundlich model. The biosorption of anthracene to biomass was extremely fast and could be modeled with pseudo-second order adsorption kinetics. Moreover, ectomycorrhizal mycelia demonstrated a strong ability to adjust the physiological process to get adapted to the change of micro-habitat.

摘要

目的

研究外生菌根真菌绒泡菌对土壤中蒽的植物修复潜力。

方法

详细研究了微生境的吸收变化。

结论

外生菌根植物对多环芳烃的修复具有很强的潜力，具有活性和非活性菌丝的特征。

结果

根据朗缪尔模型，在 25°C、pH 值为 6.0 的条件下，活性和非活性菌丝的计算吸附容量分别高达 1886.79mg/g 和 1515.15mg/g。与 Freundlich 模型相比，ANT 生物吸附更理想地符合朗缪尔模型。蒽对生物质的生物吸附非常快，可以用拟二级吸附动力学来模拟。此外，外生菌根菌丝表现出很强的调节生理过程的能力，以适应微生境的变化。