...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Pyrene Degradation Accelerated by Constructed Consortium of Bacterium and Microalga: Effects of Degradation Products on the Microalgal Growth
【24h】

Pyrene Degradation Accelerated by Constructed Consortium of Bacterium and Microalga: Effects of Degradation Products on the Microalgal Growth

机译：细菌和微藻的联合体加速了的降解：降解产物对微藻生长的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Abundant microbes including bacteria, fungi, or algae are capable of biodegrading polycyclic hydrocarbons (PAHs). However, pure cultures never occur in the contaminated environments. This study aimed to understand the general potential mechanisms of interactions between microbes under pollution stress by constructing a consortium of PAH- degrading microalga (Selenastrum capricornutum) and bacterium (Myco- bacterium sp. strain A1-PYR). Bacteria alone could grow on the pyrene, whereas the growth of algae alone was substantially inhibited by the pyrene of 10 mg L~(-1) In the mixing culture of algae and bacteria, the growth rate of algae was significantly increased from day 4 onward. Rapid bacterial degradation of pyrene might mitigate the toxicity of pyrene to algae. Phenolic acids, the bacterial degradation products of pyrene, could serve as the phytohormone for promoting algal growth in the coculture of algae and bacteria. In turn, bacterial growth was also enhanced by the algae presented in the mixing culture. Consequently, the fastest degradation of pyrene among all biodegradation systems was achieved by the consortium of algae and bacteria probably due to such interactions between the two species by virtue of degradation products. This study reveals that the consortium containing multiple microbial species is high potential for microbial remediation of pyrene-contaminated environments, and provides a new strategy to degrade the recalcitrant PAHs.
机译：包括细菌，真菌或藻类在内的丰富微生物能够生物降解多环烃（PAH）。但是，纯净的文化永远不会在受污染的环境中发生。这项研究旨在通过构建降解PAH的微藻（Selenastrum capricornutum）和细菌（分枝杆菌属菌株A1-PYR）的联盟来了解污染胁迫下微生物之间相互作用的一般潜在机制。 mg可以单独生长细菌，而of的单独生长则受到10 mg L〜（-1）的inhibit的抑制。在藻类和细菌的混合培养中，藻类的生长速率从第4天开始显着提高。 。 bacterial的快速​​细菌降解可能会减轻to对藻类的毒性。 the的细菌降解产物酚酸可作为植物激素，在藻类和细菌的共培养中促进藻类的生长。反过来，混合培养物中存在的藻类也增强了细菌的生长。因此，藻类和细菌的联合体在所有生物降解系统中实现了最快的of降解，这可能是由于两种物种之间通过降解产物进行的这种相互作用。这项研究表明，包含多种微生物物种的财团具有潜在的潜力，可对pyr污染的环境进行微生物修复，并为降解顽固的PAHs提供了新的策略。

著录项

  • 来源
    《Environmental Science & Technology》 |2014年第23期|13917-13924|共8页
  • 作者

    Shusheng Luo; Baowei Chen; Li Lin; Xiaowei Wang; Nora Fung-Yee Tam; Tiangang Luan;

  • 作者单位

    MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China,Chemistry Department, South University of Science and Technology of China, Shenzhen 518055, People's Republic of China;

    MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China;

    MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China;

    MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China;

    Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China;

    MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号