Bioaccumulation, growth performance, and transcriptomic response of Dictyosphaerium sp. after exposure to nonylphenol
Bioaccumulation, growth performance, and transcriptomic response of Dictyosphaerium sp. after exposure to nonylphenol
复制标题
Dictyosphaerium sp. 的生物累积、生长性能和转录组反应。
DOI：
10.1016/j.scitotenv.2019.06.136
复制
发表时间：
2019-10-15
影响因子：
9.8
通讯作者：
Zhao, Yuhua
中科院分区：
文献类型：
--
作者：
Cheng, Qilu;Zhou, Qifa;Zhao, Yuhua
采用不同浓度（0-8 mg/L）壬基酚（NP）处理网囊藻（Dictyosphaerium sp.），研究其对NP污染废水的生物修复能力，并探讨NP对藻细胞的毒性机制。藻类对NP具有很高的耐受性，即使是高浓度的NP也能有效地去除。随着NP浓度的增加，NP在藻细胞中的积累量增加，附着在细胞壁上的NP比例下降。类囊体密度和蛋白核大小也随NP浓度的增加而减小。在NP处理的藻细胞中，参与抗氧化途径和光合途径的关键基因表达下调。藻类核糖体基因对NP特别敏感。结果表明，NP可诱导藻细胞产生氧化应激，而网囊藻具有作为生物修复剂的潜力。(C)2019 Elsevier B. V.版权所有。
Algal cultures of Dictyosphaerium sp. were treated with a wide range (0-8 mg/L) of nonylphenol (NP) applications to investigate the species' potential to perform bioremediation of NP-contaminated wastewater and explore the mechanism of NP toxicity in algal cell. The algal species exhibited a high tolerance for NP and efficiently removed even high concentrations of NP. The accumulation of NP in algal cells tended to increase and the percentage of NP adhered to the cell walls tended to decrease as the NP concentration increased. The thylakoid density and the pyrenoid size also tended to decrease as the NP concentration rose. The key genes involved in the antioxidative pathways and photosynthetic pathways were down-regulated in the NP-treated algal cells. Algal ribosome genes were especially sensitive to NP. The results indicated that NP could induce oxidative stress in algal cells and that Dictyosphaerium sp. showed potential as a bioremediation agent. (C) 2019 Elsevier B.V. All rights reserved.