Cadmium induced hydrogen peroxide accumulation and responses of enzymatic antioxidants in Phanerochaete chrysosporium
Cadmium induced hydrogen peroxide accumulation and responses of enzymatic antioxidants in Phanerochaete chrysosporium
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镉诱导黄孢原毛平革菌过氧化氢积累和酶促抗氧化剂的反应
DOI:
10.1016/j.ecoleng.2014.11.060
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发表时间:
2015-02
期刊:
影响因子:
--
通讯作者:
Dan-Lian Huang Hao-Ran DongCui LaiMing Chen
中科院分区:
文献类型:
--
作者:
Piao Xu;Guangming Zeng;Dan-Lian Huang Hao-Ran DongCui LaiMing Chen
The white-rot fungiPhanerochaete chrysosporiumhave been widely applied in heavy metal bioremediation, which commonly results in a stress exposure. Exposure studies showed that Cd bioaccumulation triggered H2O2generation. Thereafter, the H2O2, as signal molecules, activated the enzymatic antioxidant response in the case of the conjunction of SOD and CAT. High levels of R (SOD/CAT) were found initially under Cd exposure, and then a significant decline occurred in time-course Cd exposure. Antioxidant activities also provided an alternative as an indication of the existence of antioxidant response upon Cd exposure, via coupling H2O2level with the variation in antioxidant activities. This finding potentially has implications for the understanding of tolerance behavior and detoxification mechanisms, which is beneficial to expand the application ofP. chrysosporiumin bioremediation biotechnology.
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