|本期目录/Table of Contents|

[1]谷玥,贾春云,刘志红,等.分枝杆菌胞外聚合物(EPS)对芘增溶作用的影响[J].江苏农业科学,2016,44(04):445-448.
 Gu Yue,et al.Effect of extracellular polymeric polymeric (EPS) on solubilization of pyrene[J].Jiangsu Agricultural Sciences,2016,44(04):445-448.
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第44卷
期数:
2016年04期
页码:
445-448
栏目:
资源与环境
出版日期:
2016-04-25

文章信息/Info

Title:
Effect of extracellular polymeric polymeric (EPS) on solubilization of pyrene
作者:
谷玥1贾春云2刘志红2卜宁1方玥蒙3
1.沈阳师范大学化学与生命科学学院,辽宁沈阳 110034;
2. 中国科学院沈阳应用生态研究所污染生态与环境工程重点实验室,辽宁沈阳 110016; 3. 辽宁科技大学,辽宁鞍山 114051
Author(s):
Gu Yueet al
关键词:
胞外聚合物(EPS)分枝杆菌pH值温度增溶
Keywords:
-
分类号:
S182;X171.5
DOI:
-
文献标志码:
A
摘要:
为阐明分枝杆菌胞外聚合物(EPS)在土壤多环芳烃(PAHs)微生物修复过程中的作用机理,以芘为研究对象,研究在不同pH值、温度和EPS浓度条件下,EPS对芘增溶作用的影响。结果表明:在固定EPS浓度下,48 h内芘在EPS中的溶解量先增高后降低,于8 h芘溶解度达到最大值,为0.368 mg/L;当温度升高时(15~35 ℃),EPS浓度从65.2 mg/L增加到422.6 mg/L,芘溶解量的变化趋势均为先升高后降低,在25 ℃、216.3 mg/L条件下,芘溶解量达到最大值;随着pH值升高(pH值范围为1~9),芘的溶解量先升高后降低,于pH值=5(自然)时溶解量最多。研究证实了EPS能够促进芘的溶解,通过芘的溶解量受温度、EPS浓度及pH值影响而变化的研究,推测EPS增溶芘的作用过程,其中影响芘溶解的主要物质为蛋白质。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2015-11-04
基金项目:国家自然科学基金(编号:41201310、41271336、41101295);中国科学院污染生态与环境工程重点实验室项目。
作者简介:谷玥(1990—),女,辽宁朝阳人,硕士研究生,研究方向为污染生态学。E-mail:yxm9009@qq.com。
通信作者:贾春云,博士,助理研究员,主要从事土壤污染生态研究。E-mail:jiachunyun@126.com。
更新日期/Last Update: 2016-04-25