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共存Zn(Ⅱ)抑制Pannonibacter phragmitetus BB还原Cr(Ⅵ)的分子机理

唐佳琪 杨卫春 杨志辉 廖骐

唐佳琪, 杨卫春, 杨志辉, 廖骐. 共存Zn(Ⅱ)抑制Pannonibacter phragmitetus BB还原Cr(Ⅵ)的分子机理[J]. 环境工程, 2021, 39(4): 36-41. doi: 10.13205/j.hjgc.202104007
引用本文: 唐佳琪, 杨卫春, 杨志辉, 廖骐. 共存Zn(Ⅱ)抑制Pannonibacter phragmitetus BB还原Cr(Ⅵ)的分子机理[J]. 环境工程, 2021, 39(4): 36-41. doi: 10.13205/j.hjgc.202104007
TANG Jia-qi, YANG Wei-chun, YANG Zhi-hui, LIAO Qi. MOLECULAR MECHANISM OF Cr(Ⅵ) REDUCTION INHIBITION BY PANNONIBACTER PHRAGMITETUS BB WITH CO-EXISTING Zn(Ⅱ)[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(4): 36-41. doi: 10.13205/j.hjgc.202104007
Citation: TANG Jia-qi, YANG Wei-chun, YANG Zhi-hui, LIAO Qi. MOLECULAR MECHANISM OF Cr(Ⅵ) REDUCTION INHIBITION BY PANNONIBACTER PHRAGMITETUS BB WITH CO-EXISTING Zn(Ⅱ)[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(4): 36-41. doi: 10.13205/j.hjgc.202104007

共存Zn(Ⅱ)抑制Pannonibacter phragmitetus BB还原Cr(Ⅵ)的分子机理

doi: 10.13205/j.hjgc.202104007
基金项目: 

国家重点研发项目"多污染物协同修复材料研发及长效安全适用性评估"(2018YFC1802204)。

详细信息
    作者简介:

    唐佳琪(1995-),女,硕士研究生,主要研究方向为Cr (Ⅵ)污染微生物治理技术。1316085669@qq.com

    通讯作者:

    廖骐(1979-),男,博士,副教授,主要研究方向为重金属污染场地微生物生态及修复技术。liaoqi@csu.edu.cn

MOLECULAR MECHANISM OF Cr(Ⅵ) REDUCTION INHIBITION BY PANNONIBACTER PHRAGMITETUS BB WITH CO-EXISTING Zn(Ⅱ)

  • 摘要: 通过电子传递体系活性、酶活性以及实时定量PCR技术,揭示共存Zn(Ⅱ)延迟Pannonibacter phragmitetus BB(BB)生长,抑制Cr(Ⅵ)还原的分子机理。结果表明:共存Zn(Ⅱ)抑制BB菌还原Cr(Ⅵ)主要表现为胞内和胞外抑制,共存Zn(Ⅱ)通过降低电子传递体系活性和细胞色素c氧化酶活性,抑制其胞外Cr(Ⅵ)还原;共存Zn(Ⅱ)通过降低铬转运效率的方式,抑制其胞内Cr(Ⅵ)还原。SOD、CAT、POD、GST 4种抗氧化酶活性的研究表明:共存Zn(Ⅱ)引起的胞内氧化压力较小,对BB菌造成的毒性较低,从侧面印证了共存Zn(Ⅱ)对BB菌生长的延迟作用。
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出版历程
  • 收稿日期:  2020-07-13
  • 网络出版日期:  2021-07-21

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