| 克雷伯氏菌N-5对三苯基锡的降解性能 |
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| 引用本文： | 史一枝,叶锦韶,尹华,彭辉,陈烁娜,秦华明,何宝燕,张娜.克雷伯氏菌N-5对三苯基锡的降解性能[J].暨南大学学报,2009,30(3). |
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| 作者姓名： | 史一枝 叶锦韶 尹华 彭辉 陈烁娜 秦华明 何宝燕 张娜 |
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| 作者单位： | 1. 暨南大学环境工程系,广东,广州,510632
2. 暨南大学化学系,广东,广州,510632 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 通过耐受性实验,得到三苯基锡(TPT)高耐受性细菌N-5、N-6和酵母菌Ja、Jc.经初步测试,发现克雷伯氏菌N-5菌株的降解性能较为理想.性能研究表明,当菌龄为36 h且水样中菌质量浓度、TPT质量浓度、外加碳源葡萄糖质量浓度分别为14g/L、5、5 mg/L时,该菌对TPT的降解效果最好,5 d降解率达到50%左右.扫描电镜观察显示,该菌在有TPT存在的环境中,细胞发生明显变化,其变化程度随着TPT质量浓度的提高和处理时间的延长而加大,刺激强度较大时细胞变皱.且该菌体有集中起来抵御不良生长环境的自我保护机制.
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| 关 键 词： | 三苯基锡 生物降解 克雷伯氏菌 |
Degradation characteristics of triphenyltin by Klebsiella sp. N-5 strain |
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| SHI Yi-zhi,YE Jin-shao,YIN Hua,PENG Hui,CHEN Shuo-na,QIN Hua-ming,HE Bao-yan,ZHANG Na.Degradation characteristics of triphenyltin by Klebsiella sp. N-5 strain[J].Journal of Jinan University(Natural Science & Medicine Edition),2009,30(3). |
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| Authors: | SHI Yi-zhi YE Jin-shao YIN Hua PENG Hui CHEN Shuo-na QIN Hua-ming HE Bao-yan ZHANG Na |
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| Institution: | 1.Department of Environmental Engineering;2.Department of Chemistry;Jinan University;Guangzhou 510632;China |
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| Abstract: | Two bacterial strains N-5,N-6 together with two yeasts Ja and Jc which possessed the properties of toxicity resistance to triphenyltin were isolated.The preliminary experimental analysis showed that strain N-5 which was identified as Klebsiella sp.exhibited much better degradation ability of TPT.After treating TPT for five days,this strain could degrade 50% TPT when the microorganism age was 36 h and the concentrations of bacteria,TPT and glucose were 14 g/L,5 and 5 mg/L,respectively.Scan Electronic Microsc... |
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| Keywords: | triphenyltin biodegradation Klebsiella sp |
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