作　　者： ; ; ; ; ; ; ; ;

机构地区： 湖南大学环境科学与工程学院

出　　处： 《湖南大学学报（自然科学版）》 2011年第4期61-65,共5页

摘　　要： 在培养4d的简青霉培养体系中，分别加入不同浓度的酚类和苯胺类物质，观察这些有毒物质对简青霉生长的影响，并研究简青霉对这几种有毒物质的降解效果．结果表明：低浓度的酚类和苯胺类物质能促进简青霉的生长，高浓度的这些物质则对简青霉的生长有一定的抑制作用．同时简青霉能够很好地催化氧化苯酚，2，4-二氯苯酚和苯胺．当苯酚质量浓度为500Mg／mL，2，4-二氯苯酚质量浓度为50μg／mL，苯胺的质量浓度为1000μg／mL时，简青霉对这三者的降解率都接近100％．在2，4-二氯苯酚质量浓度为60-125μg/mL，苯胺质量浓度为2000-5000μg／mL时，简青霉对它们的降解率分别达到60％和70％以上．简青霉对对硝基苯酚和对硝基苯胺降解效果不明显，在研究的浓度范围内，简青霉对它们的降解率只在10％左右． In order to study the growth of Penicillium simplicissimum exposed to phenols and anilines,and the degradation of these toxic substances,several different concentrations of phenols and anilines were added to the culture system,which was cultured for 4 days with Penicillium simplicissimum.The results have shown that low concentrations of phenols and anilines can promote the growth of Penicillium simplicissimum,But on the contrary,the growth would be restrained under the culture of high concentrations.Meanwhile,Penicillium simplicissimum can catalyze and oxidize phenol,2,4-dichlorophenol and aniline effectively.When the concentration of phenol was controlled at 500 μg/mL,2,4-dichlorophenol was 50 μg/mL,and aniline was 1 000 μg/mL,the degradation rates of phenol,2,4-dichlorophenol and aniline were all close to 100%.When the concentration of 2,4-dichlorophenol was controlled at 60~125 μg/mL and aniline was 2 000~5 000 μg/mL,the degradation rates were over 60% and 70%,respectively.However,the degradation effect of p-nitrophenol and p-nitroaniline by Penicillium simplicissimum was worse,and their degradation rate was only about 10%.

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领　　域： [生物学]