Physiological responses of freshwater oleaginous microalgae Desmodesmus sp NMX451 under nitrogen deficiency and alkaline pH-induced lipid accumulation
文献类型：期刊论文
| 作者 | Xia, Ling1,2; Yang, Haijian1,2; He, Qiaoning1,2; Hu, Chunxiang1 |
| 刊名 | JOURNAL OF APPLIED PHYCOLOGY
 |
| 出版日期 | 2015-04-01 |
| 卷号 | 27期号:2页码:649-659 |
| 关键词 | Desmodesmus sp NMX451 Nitrogen deficiency Bicarbonate addition Oil accumulation Microalgae cultivation |
| ISSN号 | 0921-8971 |
| 通讯作者 | Hu, CX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China. |
| 英文摘要 | Many microalgae are reported to accumulate TAG under high concentrations of bicarbonate and nitrogen deficiency, but their physiological responses remain unknown and the associated applied technology is rarely explored. We found that single high concentration of bicarbonate did not enhance lipid content, except when combined with nitrogen limitation in Desmodesmus sp. NMX451, and the lipid contents obtained were independent from nitrogen limitation and alkalinity stress. Further analysis showed that adding bicarbonate not only retarded the cell cycle, repressed starch accumulation but also promoted polar lipid content. Nitrogen limitation meantime caused protein and chlorophyll degradation with a corresponding increase in total lipid content. Following the aforementioned insights, combined cultivation was performed at an outdoor 5 L scale, and higher biomass and lipid productivities were obtained. These results suggest that bicarbonate can be used as a "trigger" for rapid lipid accumulation in microalgae during nitrogen depletion, and this is an effective new strategy for the cultivation of oleaginous microalgae. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Biotechnology & Applied Microbiology ; Marine & Freshwater Biology |
| 研究领域[WOS] | Biotechnology & Applied Microbiology ; Marine & Freshwater Biology |
| 关键词[WOS] | DIATOM PHAEODACTYLUM-TRICORNUTUM ; CHLORELLA SP CHLOROPHYTA ; CARBON-DIOXIDE LEVELS ; TRIACYLGLYCEROL ACCUMULATION ; CHLAMYDOMONAS-REINHARDTII ; INORGANIC CARBON ; DIFFERENT TEMPERATURE ; BAG PHOTOBIOREACTORS ; TETRASELMIS-SUECICA ; OIL ACCUMULATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000352446200003 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/25763]  |
| 专题 | 水生生物研究所_藻类生物学及应用研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Ling,Yang, Haijian,He, Qiaoning,et al. Physiological responses of freshwater oleaginous microalgae Desmodesmus sp NMX451 under nitrogen deficiency and alkaline pH-induced lipid accumulation[J]. JOURNAL OF APPLIED PHYCOLOGY,2015,27(2):649-659. |
| APA | Xia, Ling,Yang, Haijian,He, Qiaoning,&Hu, Chunxiang.(2015).Physiological responses of freshwater oleaginous microalgae Desmodesmus sp NMX451 under nitrogen deficiency and alkaline pH-induced lipid accumulation.JOURNAL OF APPLIED PHYCOLOGY,27(2),649-659. |
| MLA | Xia, Ling,et al."Physiological responses of freshwater oleaginous microalgae Desmodesmus sp NMX451 under nitrogen deficiency and alkaline pH-induced lipid accumulation".JOURNAL OF APPLIED PHYCOLOGY 27.2(2015):649-659. |
入库方式： OAI收割
来源：水生生物研究所
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