您的位置:首页>论文发表>2015
2015

董俊德研究团队在《International Journal of Molecular Sciences》发表论文

副标题:

时间:2015-12-28  作者:LMB  来源:文本大小:【 |  | 】  【打印

题目:Fungal Community Successions in Rhizosphere Sediment of Seagrasses Enhalus acoroides under PAHs Stress.

作者: Juan Ling, Yanying Zhang,Meilin Wu,Youshao Wang,Junde Dong*, Yufeng Jiang,Siquan Zeng.

刊物: International Journal of Molecular Sciences

刊号: 2015,16(6):14039-14055

摘要: Seagrass meadows represent one of the highest productive marine ecosystems and are of great ecological and economic values. Recently, they have been confronted with worldwide decline. Fungi play important roles in sustaining the ecosystem health as degraders of polycyclic aromatic hydrocarbons (PAHs), but fewer studies have been conducted in seagrass ecosystems. Hence, we investigated the dynamic variations of the fungal community succession under PAH stress in rhizosphere sediment of seagrasses Enhalus acoroides in this study. Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE), quantitative PCR (qPCR) and a clone library have been employed to analyze the fungal community’s shifts. Sequencing results of DGGE and the clone library showed that the predominant species belong to phyla Ascomycota and Basidiomycota. The abundance of three groups decreased sharply over the incubation period, whereas they demonstrated different fungal diversity patterns. Both the exposure time and the PAH concentrations affected the microbial diversity as assessed by PCR-DGGE OPEN ACCESSanalysis. Redundancy analysis (RDA) indicated that significant factors driving community shifts were ammonium and pH (p < 0.05). Significant amounts of the variations (31.1%) were explained by pH and ammonium, illustrating that those two parameters were the most likely ones to influence or be influenced by the fungal communities’ changes. Investigation results also indicated that fungal communities in seagrass meadow were very sensitive to PAH-induced stress and may be used as potential indicators for the PAH contamination.

相关附件
相关文档
Copyright    中国科学院热带海洋生物资源与生态重点实验室    版权所有
地址:广东省广州市新港西路164号  邮编:510301   粤ICP备05007992号
电话:020-89023101  传真:86-20-84451672  Email:liujuan@scsio.ac.cn