Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp. | |
Hu, Hanhua1; Zhou, Qiubai2 | |
刊名 | WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
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2010-05-01 | |
卷号 | 26期号:5页码:957-961 |
关键词 | Inorganic carbon acquisition Nitrate Nannochloropsis sp. Phosphate |
ISSN号 | 0959-3993 |
通讯作者 | Hu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China |
中文摘要 | Nannochloropsis sp. was grown to the exponential phase and transferred to the high CO2 (2,800 mu l l(-1)) and irradiance (100 mu mol photons m(-2) s(-1)) condition with different levels of nitrate and phosphate for 72 h, then the photosynthetic activity and inorganic carbon acquisition of the alga were measured. The apparent photosynthetic efficiency (alpha) of Nannochloropsis sp. decreased with increasing NO3 (-) concentration from 150 to 3,000 mu M, and the high nitrate-grown cells showed the lowest levels of light-saturated photosynthetic rate (P (m)), while the low nitrate-grown cells showed the highest levels of dark respiration rate (R (d)). The maximal light-saturated photosynthetic rate and the minimal dark respiration rate were seen under the middle nitrate condition. When the nitrate concentration ranged from 150 to 3,000 mu M, the affinity for inorganic carbons of Nannochloropsis sp. increased sharply with the increasing NO3 (-) concentration to 300 mu M and then decreased significantly. The middle phosphate-grown cells exhibited the highest light-saturated photosynthetic rate and apparent photosynthetic efficiency, however, the affinity for inorganic carbons of Nannochloropsis sp. was the maximum under the low phosphate condition. It was shown that the appropriate nitrogen and phosphorus levels were of vital importance to the photosynthesis of cells. |
英文摘要 | Nannochloropsis sp. was grown to the exponential phase and transferred to the high CO(2) (2,800 mu l l(-1)) and irradiance (100 mu mol photons m(-2) s(-1)) condition with different levels of nitrate and phosphate for 72 h, then the photosynthetic activity and inorganic carbon acquisition of the alga were measured. The apparent photosynthetic efficiency (alpha) of Nannochloropsis sp. decreased with increasing NO(3) (-) concentration from 150 to 3,000 mu M, and the high nitrate-grown cells showed the lowest levels of light-saturated photosynthetic rate (P (m)), while the low nitrate-grown cells showed the highest levels of dark respiration rate (R (d)). The maximal light-saturated photosynthetic rate and the minimal dark respiration rate were seen under the middle nitrate condition. When the nitrate concentration ranged from 150 to 3,000 mu M, the affinity for inorganic carbons of Nannochloropsis sp. increased sharply with the increasing NO(3) (-) concentration to 300 mu M and then decreased significantly. The middle phosphate-grown cells exhibited the highest light-saturated photosynthetic rate and apparent photosynthetic efficiency, however, the affinity for inorganic carbons of Nannochloropsis sp. was the maximum under the low phosphate condition. It was shown that the appropriate nitrogen and phosphorus levels were of vital importance to the photosynthesis of cells. |
学科主题 | Biotechnology & Applied Microbiology |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
类目[WOS] | Biotechnology & Applied Microbiology |
研究领域[WOS] | Biotechnology & Applied Microbiology |
关键词[WOS] | CHLORELLA-VULGARIS ; CO2 CONCENTRATION ; MARINE MICROALGA ; LIGHT ; LIMITATION ; PHYTOPLANKTON ; ACCLIMATION ; METABOLISM ; MODULATION ; MECHANISMS |
收录类别 | SCI |
资助信息 | National Natural Science Foundation of China [40976079] |
语种 | 英语 |
WOS记录号 | WOS:000276497600025 |
公开日期 | 2010-12-23 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihb.ac.cn/handle/342005/13791] ![]() |
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, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Jiangxi Agr Univ, Coll Anim Sci & Technol, Nanchang 330045, Peoples R China |
推荐引用方式 GB/T 7714 | Hu, Hanhua,Zhou, Qiubai. Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp.[J]. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,2010,26(5):957-961. |
APA | Hu, Hanhua,&Zhou, Qiubai.(2010).Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp..WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,26(5),957-961. |
MLA | Hu, Hanhua,et al."Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp.".WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 26.5(2010):957-961. |
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