| 采用光合细菌控制水体中亚硝酸盐的研究 |
| 摘要点击 1778 全文点击 2038 投稿时间：1995-03-07 |
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| 中文关键词 水产养殖 光合细菌 亚硝酸盐 |
| 英文关键词 photosynthetic bacteria nitrite fishery |
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| 中文摘要 |
| 分离筛选到一株利用亚硝酸盐的光合细菌。试验结果表明,当亚硝酸盐浓度在0.01—50mmol/L时,该菌株在7d时间内能去除80%以上的亚硝酸盐,该菌株去除亚硝酸盐的最适碳源是乙酸和乳酸。在养殖池塘中施用该菌株制成的菌剂,池塘中亚硝酸盐浓度下降50%—80%。 |
| 英文摘要 |
| Nitrite,a toxic factor for most aquatic animals and causing a great loss for fishery if it was kept at a higher level in water,was found to be utilized and removed screened and isolated strains of photosynthetic nonsulfur bacteria. Experiments indicated that the isolated strains removed nitrite by more than 80% when the nitrite in the bulkranged from 0.01 to 5.0 mmol/L,regardless they were cultured under illumination or in dark.Results also show that acetate and lactate were the optimal C sources for nitrite removal. Field suryeys on the nitrite concentration in fish farining ponds in Beijing area found that it was about 0.006—0.008 mmol/L. By using the isolated strains in the ponds,their nitrite concentrations decreased by 50%—80%. |
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