Bacterial communities fluctuate in abundance and diversity under simulated oil-contaminated seawater conditions
文献类型：CNKI期刊论文
| 作者 | LI Xiaohong; YOU Cai; QU Liang; ZHOU Bin; TANG Xuexi; XIAO Hui |
| 发表日期 | 2019-03-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | petroleum pollution bacterial community bacterial growth amplified ribosomal DNA restriction analysis(ARDRA) |
| 英文摘要 | Marine bacteria have recently been identified as a potent solution for petroleum hydrocarbon degradation in response to hazardous oceanic oil spills. In this study, a mesocosm experiment simulating a petroleum spill event was performed to investigate changes in the abundance, structure, and productivity of bacterial communities in response to oil pollution. Cultured heterotrophic bacteria and total bacteria showed a consistent trend involving an immediate decrease in abundance, followed by a slight increase, and a steady low-level thereafter. However, the changing trend of bacterial productivity based on bacterial biomass and bacterial volume showed the opposite trend. In addition, the density of oil-degrading bacteria increased initially, then subsequently declined. The change in the bacterial community structure at day 0 and day 28 were also analyzed by amplified ribosomal DNA restriction analysis(ARDRA), which indicated that the species diversity of the bacterial community changed greatly after oil pollution. Alphaproteobacteria(40.98%)replaced Epsilonproteobacteria(51.10%) as the most abundant class, and Gammaproteobacteria(38.80%)became the second most dominant class in the whole bacterial community. The bacterial communities in oil-contaminated seawater(32 genera) became much more complex than those found in the natural seawater sample(16 genera). The proportion of petroleum-degrading bacteria in the oil-contaminated seawater also increased. In this study, culture-dependent and culture-independent approaches were combined to elucidate changes in both bacterial productivity and community structure. These findings will contribute to a better understanding of the role that bacteria play in material cycling and degradation in response to oil pollution. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the NSFC-Shandong Joint Fund for Marine Ecology and Environmental Sciences(No.U1606404) ; the Fundamental Research Funds for the Central Universities(No.201562018) ; the Foundation of the Key Laboratory of Marine Spill Oil Identification and Damage Assessment Technology(No.201108) |
| 卷 | v.37期:02页:243-255 |
| 语种 | 英文; |
| 分类号 | X55;X172 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188611]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.InstituteofOceanology,ChineseAcademyofSciences 2.LaboratoryforMarineEcologyandEnvironmentalScience,QingdaoNationalLaboratoryforMarineScienceandTechnology 3.CNOOCLimitedTianjinBranch 4.CollegeofMarineLifeSciences,OceanUniversityofChina |
| 推荐引用方式 GB/T 7714 | LI Xiaohong,YOU Cai,QU Liang,et al. Bacterial communities fluctuate in abundance and diversity under simulated oil-contaminated seawater conditions. 2019. |
入库方式： OAI收割
来源：海洋研究所
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