Improvement of tolerance to lead by filamentous fungus Pleurotus ostreatus HAU-2 and its oxidative responses

文献类型： 外文期刊

第一作者： Zhang, Shimin

作者： Zhang, Shimin;Zhang, Xiaolin;Wu, Kun;Chang, Cheng;Yuan, Zhiyong;Wang, Ting;Zhao, Yong;Yang, Xitian;Zhang, Zhiming;Li, Xuanzhen;Zhang, Yuting;La, Guixiao

作者机构：

关键词： Removal;Tolerance;Lead;Pleurotus ostreatus HAU-2;Filamentous fungi

期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Wastewater contaminated with heavy metals is a world-wide concern. One biological treatment strategy includes filamentous fungi capable of extracellular adsorption and intracellular bioaccumulation. Here we report that an acclimated strain of filamentous fungus Pleurotus ostreatus HAU-2 can withstand Pb up to 1500 mg L-1 Pb, conditions in which the wildtype strain cannot grow. The acclimated strain grew in liquid culture under 500 mg L-1 Pb without significant abnormity in biomass and morphology, and was able to remove significant amounts of heavy metals with rate of 99.1% at 200 mg L-1 and 63.3% at 1500 mg L-1. Intracellular bioaccumulation as well as extracellular adsorption both contributed the Pb reduction. Pb induced levels of H2O2, and its concentration reached 72.9-100.9 mu mol g(-1) under 200 -1000 mg L-1 Pb. A relatively higher malonaldehyde (MDA) concentration (8.06-7.59 nmol g(-1)) was also observed at 500-1500 mg L-1 Pb, indicating that Pb exposure resulted in oxidative damage. The fungal cells also defended against the attack of reactive oxygen species by producing antioxidants. Of the three antioxidant enzymes superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), CAT was the most responsive and the maximal enzyme activity was 15.8 U mg(-1) protein. Additionally, glutathione (GSH) might also play a role (3.16-3.21 mg g(-1) protein) in detoxification under relatively low Pb concentration (100-200 mg L-1). Our findings suggested that filamentous fungus could be selected for increased tolerance to heavy metals and that CAT and GSH might be important components of this tolerance. (C) 2016 Elsevier Ltd. All rights reserved.

分类号： X5

  • 相关文献

[1]ROLE OF THE NON-PROTEIN THIOLS IN ACCUMULATION, TRANSLOCATION AND TOLERANCE OF LEAD IN Iris lactea var. chinensis. Yuan, Hai-Yan,Huang, Su-Zhen,Yang, Yong-Heng,Gu, Chun-Sun,Yuan, Hai-Yan,Huang, Su-Zhen,Yang, Yong-Heng,Guo, Zhi.

[2]Efficient decolorization and detoxification of the sulfonated azo dye Reactive Orange 16 and simulated textile wastewater containing Reactive Orange 16 by the white-rot fungus Ganoderma sp En3 isolated from the forest of Tzu-chin Mountain in China. Ma, Li,Zhuo, Rui,Liu, Huahua,Yu, Dong,Zhang, Xiaoyu,Yang, Yang,Jiang, Mulan. 2014

[3]Production of Mesoporous Activated Carbon from Tea Fruit Peel Residues and Its Evaluation of Methylene Blue Removal from Aqueous Solutions. Gao, Junjie,Wang, Yuefei,Wu, Jing,Xu, Ping,Kong, Dedong,Sun, Shili. 2013

[4]Removal of roxarsone from aqueous solution by Fe/La-modified montmorillonite. Wang, Ya-Jiao,Wang, Wei,Yuan, Shou-Jun,Hu, Zhen-Hu,Ji, Feng,Wang, Wei,Yuan, Shou-Jun,Hu, Zhen-Hu. 2016

[5]Microbial community response during the treatment of pharmaceutically active compounds (PhACs) in constructed wetland mesocosms. Yan, Qing,Min, Jie,Yu, Yonghong,Zhu, Zhiwei,Feng, Guozhong,Yan, Qing,Min, Jie,Yu, Yonghong,Zhu, Zhiwei.

[6]Dissemination of antibiotic resistance genes and their potential removal by on-farm treatment processes in nine swine feedlots in Shandong Province, China. Ben, Weiwei,Qiang, Zhimin,Wang, Jian,Wang, Jian,Pan, Xun.

[7]Removal of Congo Red from aqueous solution by cattail root. Hu, Zhenhu,Ji, Feng.

[8]Adsorption of Copper(II) from an Wastewater Effluent of Electroplating Industry by Poly(ethyleneimine)-Functionalized Silica. Xu, Hongbo,Liu, Dan-dan,He, Lu,Liu, Na,Ning, Guiling,Ning, Guiling. 2015

[9]Removal of pharmaceutically active compounds (PhACs) and toxicological response of Cyperus alternifolius exposed to PhACs in microcosm constructed wetlands. Yan, Qing,Feng, Guozhong,Sun, Chengxiao,Zhu, Zhiwei,Yan, Qing,Sun, Chengxiao,Guo, Jin-song,Zhu, Zhiwei,Yan, Qing,Gao, Xu,Guo, Jin-song.

[10]Adsorption removal of tetracycline from aqueous solution by anaerobic granular sludge: Equilibrium and kinetic studies. Li, Ke,Liu, Yuanlu,Tong, Zilin,Hu, Zhenhu,Ji, Feng,Xinmin Zhan.

[11]The effect of grassland conversion on CH4 and N2O emissions and removals. Li, Y,Lin, ED,Yang, ZW,Wang, YQ. 2002

[12]Removing Bisphenol A from Aqueous Solution by Phosphorylated Cotton in the Presence of Cetyl Trimethyl Ammonium Bromide. Gong, Renmin,Huang, Fenghong,Gong, Renmin,Guo, Pingzhen,Chen, Jian.

[13]Adsorption behaviors of ammonium nitrogen by an amphoteric hydrogel. Wei, Jia,Xu, Shimei,Liu, Xuan,Xu, Shimei. 2016

[14]Stability of nitrofuran residues during honey processing and nitrofuran removal by macroporous adsorption resins. Jia, Qi,Cheng, Ni,Jia, Jiajia,Cao, Wei,Yu, Shifeng,Wu, Liming,Xue, Xiaofeng.

[15]Protective effects of puerarin on experimental chronic lead nephrotoxicity in immature female rats. Wang, Lin,Yang, Dubao,Wang, Zhenyong,Lin, Shuqian,Li, Zifa. 2013

[16]Lead (Pb) Toxicity; Physio-Biochemical Mechanisms, Grain Yield, Quality, and Pb Distribution Proportions in Scented Rice. Ashraf, Umair,Kanu, Adam S.,Deng, Quanquan,Mo, Zhaowen,Pan, Shenggang,Tian, Hua,Tang, Xiangru,Ashraf, Umair,Kanu, Adam S.,Deng, Quanquan,Mo, Zhaowen,Pan, Shenggang,Tian, Hua,Tang, Xiangru. 2017

[17]Health risk assessment of Chinese consumers to lead via diet. Yu, Guoguang,Dai, Fen,Wang, Wen,Zheng, Weiran,Zhang, Zhiheng,Yuan, Yuwei,Wang, Qiang,Yu, Guoguang,Dai, Fen,Wang, Wen,Zheng, Weiran,Zhang, Zhiheng,Yuan, Yuwei,Wang, Qiang. 2017

[18]Cadmium and lead contamination in japonica rice grains and its variation among the different locations in southeast China. Cheng, FM,Zhao, NC,Xu, HM,Li, Y,Zhang, WF,Zhu, ZW,Chen, MX. 2006

[19]Simultaneously determination of trace Cd2+ and Pb2+ based on L-cysteine/graphene modified glassy carbon electrode. Zhou, Wenshu,Li, Caihong,Yang, Xiaodi,Sun, Chong,Zhou, Wenshu. 2016

[20]Determination of lead in food and feed samples using hydride generation-atomic fluorescence spectrometry. Zhai, YX,Hao, LH. 2000

作者其他论文 更多>>

微信小程序