Metabolic profiles of Nannochloropsis oceanica IMET1 under nitrogen-deficiency stress
文献类型：期刊论文
| 作者 | Xiao, Yan; Zhang, Jingtao; Cui, Jiatao; Feng, Yingang; Cui, Qiu |
| 刊名 | BIORESOURCE TECHNOLOGY
 |
| 出版日期 | 2013-02-01 |
| 卷号 | 130期号:1页码:731-738 |
| 关键词 | Nannochloropsis oceanica Lipid Metabolism Biodiesel Nitrogen limitation |
| 通讯作者 | Qiu Cui |
| 中文摘要 | a b s t r a c tTo understand the mechanism of lipid accumulation and the corresponding metabolic changes of the microalga Nannochloropsis oceanica IMET1, the lipid content, fatty acid composition and metabolic profile were investigated via batch culture under nutrient deficiency and chemostatic culture under nitrate limitation. The results indicated that the triacylglycerol-neutral lipids were significantly accumulated through an acyl-CoA dependent pathway, while the polar lipids were partially converted to triacylglycerol through an acyl-CoA independent pathway. The fatty acid compositions of the polar lipids changed concurrently with the length of time of the nutrient deficiency, while the fatty acid compositions of the neutral lipids remained nearly consistent. The concentrations of several major osmolytes were significantly changed under chemostatic conditions with different nitrogen concentrations, which reflect the membrane property changes caused by the alteration of the polar lipid composition. |
| 英文摘要 | To understand the mechanism of lipid accumulation and the corresponding metabolic changes of the microalga Nannochloropsis oceanica IMET1, the lipid content, fatty acid composition and metabolic profile were investigated via batch culture under nutrient deficiency and chemostatic culture under nitrate limitation. The results indicated that the triacylglycerol-neutral lipids were significantly accumulated through an acyl-CoA dependent pathway, while the polar lipids were partially converted to triacylglycerol through an acyl-CoA independent pathway. The fatty acid compositions of the polar lipids changed concurrently with the length of time of the nutrient deficiency, while the fatty acid compositions of the neutral lipids remained nearly consistent. The concentrations of several major osmolytes were significantly changed under chemostatic conditions with different nitrogen concentrations, which reflect the membrane property changes caused by the alteration of the polar lipid composition. (C) 2012 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Technology |
| 学科主题 | 代谢物组学 |
| 类目[WOS] | Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 研究领域[WOS] | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 关键词[WOS] | LIPID-COMPOSITION ; PAVLOVA-LUTHERI ; ALGAE ; OIL ; ACCUMULATION ; BIODIESEL ; PHOTOBIOREACTOR ; TRIACYLGLYCEROL ; MICROALGAE ; SALINITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316032300098 |
| 公开日期 | 2013-04-10 |
| 源URL | [http://ir.qibebt.ac.cn:8080/handle/337004/1461]  |
| 专题 | 青岛生物能源与过程研究所_代谢物组学团队 |
| 作者单位 | Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Prov Key Lab Energy Genet, Key Lab Biofuels, Qingdao 266101, Shaodong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Yan,Zhang, Jingtao,Cui, Jiatao,et al. Metabolic profiles of Nannochloropsis oceanica IMET1 under nitrogen-deficiency stress[J]. BIORESOURCE TECHNOLOGY,2013,130(1):731-738. |
| APA | Xiao, Yan,Zhang, Jingtao,Cui, Jiatao,Feng, Yingang,&Cui, Qiu.(2013).Metabolic profiles of Nannochloropsis oceanica IMET1 under nitrogen-deficiency stress.BIORESOURCE TECHNOLOGY,130(1),731-738. |
| MLA | Xiao, Yan,et al."Metabolic profiles of Nannochloropsis oceanica IMET1 under nitrogen-deficiency stress".BIORESOURCE TECHNOLOGY 130.1(2013):731-738. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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