College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
Chemosphere. 2014 Aug;109:208-12. doi: 10.1016/j.chemosphere.2014.01.069. Epub 2014 Feb 14.
In this study, the H2S donor, sodium hydrosulfide (NaHS) was used to pretreat Phanerochaete chrysosporium in order to improve its ability to degrade 2,4-dichlorophenol (2,4-DCP). When pretreated with 100μM NaHS, P. chrysosporium was able to degrade 2,4-DCP completely in 24h, whereas the degradation efficiency of the untreated control was only 57%. The 2,4-DCP-induced oxidative stress was alleviated by NaHS, and the percentage of surviving cells increased by 32%. H2S or HS(-), rather than other compounds derived from NaHS, were responsible for promoting 2,4-DCP degradation by P. chrysosporium. The results of this study suggest that H2S treatment is a potential strategy to alleviate environmental stress and improve the efficiency of the biological removal of pollutants from wastewater.
在这项研究中，使用了 H2S 供体硫氢化钠（NaHS）预处理黄孢原毛平革菌，以提高其降解 2,4-二氯苯酚（2,4-DCP）的能力。当用 100μM NaHS 预处理时，黄孢原毛平革菌能够在 24 小时内完全降解 2,4-DCP，而未经处理的对照的降解效率仅为 57%。NaHS 缓解了 2,4-DCP 诱导的氧化应激，存活细胞的百分比增加了 32%。是 H2S 或 HS（-），而不是 NaHS 衍生的其他化合物，负责促进黄孢原毛平革菌降解 2,4-DCP。这项研究的结果表明，H2S 处理是一种缓解环境压力和提高废水生物去除污染物效率的潜在策略。
