|本期目录/Table of Contents|

[1]张雪娜,贾海滨,张丽秀,等.4环HMW-PAHs降解菌的筛选、鉴定及降解特性[J].江苏农业科学,2017,45(15):282-285.
 Zhang Xuena,et al.Screening, identification and degradation characteristics of 4-ring HMW-PAHs degrading bacteria[J].Jiangsu Agricultural Sciences,2017,45(15):282-285.
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4环HMW-PAHs降解菌的筛选、鉴定及降解特性(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年15期
页码:
282-285
栏目:
资源与环境
出版日期:
2017-08-05

文章信息/Info

Title:
Screening, identification and degradation characteristics of 4-ring HMW-PAHs degrading bacteria
作者:
张雪娜1 贾海滨1 张丽秀1 石维1 王伟1 冯圣东12 杨志新12
1.河北农业大学资源与环境科学学院,河北保定 071000; 2.河北省农田生态环境重点实验室,河北保定 071000
Author(s):
Zhang Xuenaet al
关键词:
苯并蒽[XCZ60.tif]生物降解镰刀菌
Keywords:
-
分类号:
S182
DOI:
-
文献标志码:
A
摘要:
利用富集培养法从河北省典型煤矿区土壤中分离到1株4环高环芳烃(HMW-PAHs)降解菌,经形态特征观察和18S rRNA序列分析确定该菌株为镰刀菌属(Fusarium sp.),命名为Y15。通过室内摇瓶和土壤培养试验,研究了其对4环HMW-PAHs的降解性能。结果表明,室内摇瓶培养7 d后,Y15接种量为100 mL/L时,对初始浓度为 10 mg/L 的芘(Pyr)、苯并[a]蒽(BaA)、[XCZ60.tif](Chry)的降解效率分别为52.94%、32.14%、33.93%。其中,对Pyr的降解率随初始浓度的升高呈先升高后降低的趋势,在40 mg/L时降解率最高,为69.67%。Y15接种在PAHs污染的土壤中,经30 d培养试验,Y15对3种高环芳烃Pyr、BaA、Chry的总降解率为13.15%。在3种PAHs中,Y15对Pry的降解率显著高于对BaA、Chry的降解率(P<0.05)。从土壤酶活性变化规律看,与添加灭活菌液的对照组相比,添加菌液处理的土壤多酚氧化酶和过氧化物酶活性明显降低。综上所述,该菌株是1株能以4环HMW-PAHs为唯一碳源且具有高效降解功能的潜在降解菌。
Abstract:
-

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-04-07
基金项目:河北省人力资源厅项目;河北省教育厅项目(编号:Z2013058)。
作者简介:张雪娜(1990—),女,河北廊坊人,硕士研究生,主要从事环境质量评价与监控研究。E-mail:815798846@qq.com。
通信作者:杨志新,博士,教授,主要从事生态、环境质量评价与监控研究。E-mail:yangzhixin@126.com。
更新日期/Last Update: 2017-08-05