碩士 / 國立中山大學 / 海洋資源學系研究所 / 90 / Abstract
The process of nitrification is highly dependent on the microbial activities and transformation, which is carried out by autotrophic nitrifiers in general, however some heterotrophic nitrifiers also can carry out the process. The diversity of autotrophic and heterotrophic ammonia-oxidizing bacteria in aquaculture ponds in Kaohsiung county was investigated. Ten heterotrophic bacteria were isolated. The nitrification ability and 16S rDNA sequences were determined. Seven of the strains had higher nitrification ability, five of them are belong to the genus of Pseudomonas, and the other two belong to Alcaligenes and Serratia, respectively. Both 16S rDNA and amoA gene sequences results showed that all autotrophic ammonia-oxidizing strains in this study belong to Nitrosomonas genus. From the data of 16S rDNA sequences, the strains isolated from Linyuan Shiang were distinct to the other two sites. Besides, amoA gene represents a very powerful molecular tool for analyzing ammonia-oxidizing bacteria communities due to its specificity and fine-scale resolution of closely related populations.
| Identifer | oai:union.ndltd.org:TW/090NSYS5277008 |
| Date | January 2002 |
| Creators | Ming-Chen Peng, 彭明琛 |
| Contributors | Chi-Hsin Hsu, 徐基新 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 107 |
Page generated in 0.0017 seconds